[go: up one dir, main page]

WO2011100350A2 - Procédé et appareil pour réaliser un retardateur dans des lunettes stéréoscopiques - Google Patents

Procédé et appareil pour réaliser un retardateur dans des lunettes stéréoscopiques Download PDF

Info

Publication number
WO2011100350A2
WO2011100350A2 PCT/US2011/024225 US2011024225W WO2011100350A2 WO 2011100350 A2 WO2011100350 A2 WO 2011100350A2 US 2011024225 W US2011024225 W US 2011024225W WO 2011100350 A2 WO2011100350 A2 WO 2011100350A2
Authority
WO
WIPO (PCT)
Prior art keywords
film
retarder
mold
retarder film
convex mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2011/024225
Other languages
English (en)
Other versions
WO2011100350A3 (fr
Inventor
Hsu Roger Wen-Yi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eye Ojo Corp
Original Assignee
Eye Ojo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eye Ojo Corp filed Critical Eye Ojo Corp
Publication of WO2011100350A2 publication Critical patent/WO2011100350A2/fr
Publication of WO2011100350A3 publication Critical patent/WO2011100350A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/12—Polarisers

Definitions

  • the present invention entails a novel process of forming a curved lens for improved 3-D perception of stereoscopic motion pictures, whereby the curved lens shape is formed involving a continuous stretch process of making the retarder film to prevent distortion and defects due to forming the retarder in curved form.
  • the novel method allows for thinner stretching of PVA (organic polyvinyl alcohol) and polymer to perfect the curve shape for better matching between the lens and the user's eyes.
  • Other improvements include the ability for retarder optical device to be laminated to the linear or circular polarizer without need for an extra polymer sheet, thereby improving light transmission for 3-D stereoscopic viewing, and for production of various specific thicknesses of the retarder film to enhance viewing contrast.
  • Stereoscopy or three dimensional imaging, relates to any technique that records three dimensional visual information and creates an illusion of enhanced depth in a user's perceived image.
  • Traditional two dimensional images utilize human visual cues of occlusion of one object by another, convergence of parallel edges, change in size of textured patterns, haze, desaturation, shift to bluishness, and subtended visual angle.
  • Stereoscopy enhances the illusion of depth in motion pictures, photographs, and other two dimensional images by presenting slightly different images to each eye, and thereby adding the human visual cue of stereopsis.
  • Liquid crystal shutter glasses contain liquid crystal that blocks or passes light through synchronization with images on a computer display, using alternate frame sequencing.
  • Stereoscopic head-mounted displays include one display per eye, which display a different perspective near each eye, and are not used in conjunction with an external screen to be viewed at distance.
  • Examples of active 3-D glasses include Active shutter glasses lens controlled by infrared (IR), radio frequency (RF), DLP-LINK ®, BLUE-TOOTH® TRANSMITTER which use electronic component to receive signal from emitter connected to display to activate a light shutter with the frequency of 120 Hertz or 240 Hertz or more.
  • Passive 3-D glasses include linearly-polarized glasses, circularly-polarized glasses, infitec glasses, complementary color analyphs, chromadepth method glasses, anachrome compatible color analyph glasses, and red-eye shutter glasses where the most prevalent would be linearly-polarized glasses and circularly-polarized glasses.
  • Linearly polarized glasses are used when a stereoscopic motion picture is projected and superimposed on the same screen through orthogonal polarizing filters.
  • the viewer wears glasses containing orthogonal polarizing filters, which only pass through similarly polarized light and block orthogonally polarized light, allowing the viewer to only see one of the images in each eye to achieve a 3-D effect. Viewers must keep their heads level in order to prevent bleeding of images from the left and right channels into the opposite channel.
  • Circularly polarized glasses are used in circumstances where two images are projected superimposed onto a screen through circular polarizing filters of opposite handedness.
  • the user wears eyeglasses which contain a pair of circular polarizing filters mounted in reverse, whereby light that is left-circularly polarized is extinguished by the right-handed analyzer and light that is right-circularly polarized is extinguished by the left-handed analyzer. This allows the user to tilt his head while viewing stereoscopic images and still maintain left and right separation.
  • Circularly polarized glasses have the advantage over linear polarized glasses because viewers with circularly polarized glasses may tilt their heads and look about without a disturbing loss of 3-D perception, whereas viewers using linear polarized glasses must keep their heads aligned within a narrow range of tilt for effective 3-D perception, or risk seeing double or darkened images.
  • the active shutter glass lens needs to be in a dark room in order to realize better resolution and full stereoscopic sensation. Some people like this but some will feel uncomfortable as well as their eyes and brain will get tired in a longer period time over than 2 hours.
  • active shutter glass lens has high resolution, the flat shape of frame and heavier than usual weight cause increased eye strain, eye pressure, and induce nausea and headache when wore over long periods of time. Further, due to the flat lens shape, such lenses do not match the natural curvature of the eye. Due to the flashing of stereoscopic images at 120 Hertz or more, it tends to cause greater eye discomfort without a lens curvature.
  • this invention also aims to create curvature lens for active 3D glasses.
  • the present invention solves the problem by continuously stretching the polarized lens and forming the lens into curved shape.
  • a retarder is an optical device that alters the polarization state of a light wave traveling through it.
  • the new method of processing the retarder with new laminate technology improves the 3-D stereoscopic image.
  • the linear polarized film or partially circular polarized film is glued to the retarder inside the retarder include gap filling agent.
  • the epoxy liquid is laminated outside the retarder then cured with air or UV light to create a "3-D circular polarized function card".
  • the new function card will have a better birefrigent effect without extra polymer sheets, thus improving transmission.
  • Currently state of the art allows for 60-85% transmission.
  • current market uses polymer sheets to support the linear polarizer.
  • the use of polymer sheet requires moist glue, which interferes with transmission. This support must be assembled using half-dry glue on the lens, which negatively affects lens clarity. Dry glue cannot be used in this assembly due to the limiting nature of the thick polymer retarder and linear polarizer.
  • the thinness of the retarder and PVA film allows the application of almost crystallized lamination possible.
  • the present invention solves this problem through a process by which a thin retarder and PVA or circular polarizer may be produced and assembled with dry glue. This process allows the wearer to view stereoscopic images for a longer time period without discomfort.
  • the process entails application of organic polyvinyl alcohol (PVA) or any selection among polymer polyurethane (PU), polyvinyl chloride (PVC), polypropylene (PP), polycarbonate (PC), or polyester (PE) as the ingredient to create retarder film with linear or partially circular polarization on different surfaces, such as flat and curved sheets, as a substantial improvement to current flat 3-D lenses and to end user viewing comfort.
  • PVA organic polyvinyl alcohol
  • PU polymer polyurethane
  • PVC polyvinyl chloride
  • PP polypropylene
  • PC polycarbonate
  • PET polyester
  • Other advantages of these methods versus previous methods include making distortion- free, thinner, flexible, functional, comparable, durable, optimal-performance circular polarized 3D lens.
  • This innovative method allows for conformation of the lens shape onto a flat and curved surface when the lens is still malleable and moist rather than cutting the lens from a flat sheet of polymer.
  • the purpose of present invention is to apply high quality retarder film to create full color, and virtually high resolution passive circular polarized 3D lens for aesthetical and comfortable eyewear to view stereoscopic images.
  • Other advantages of these method versus previous methods include making distortion-free, thinner, flexible, functional, comparable, durable, optimal-performance circular polarized 3D lens.
  • This innovative method allows production of forming lens shape into a flat and curved surface when the lens is still malleable and moist rather than cutting the lens from a flat sheet of polymer.
  • Objective of the present invention include production of high quality retarder film and application of said film to passive circularly polarized 3-D lenses in order to create aesthetically pleasing and highly comfortable eyewear to view stereoscopic images in accurate and brilliant color and full resolution.
  • Another objective of this invention is to produce distortion-free, thinner, more flexible and durable, and visually-optimized circularly-polarized 3-D lenses through the novel process of forming curved lens surfaces during the malleable or moist lens production phase, as opposed to cutting the lens from a flat polymer sheet, which causes optical distortion and end user discomfort.
  • One aspect of the invention includes a 3-D stereoscopic viewing lens comprising a retarder film wherein the retarder film is comprised of a PVA film.
  • the 3-D stereoscopic viewing lens further comprising a linear polarized film, one or more lens substrate layers, an epoxy layer.
  • the 3-D stereoscopic viewing lens is has a shape of a curvature.
  • the 3-D stereoscopic viewing lens further comprising a linear polarized film, a LCD layer, an ITO layer, a glass layer and a lens substrate layer
  • the retarder film is made comprising the following steps: mounting a PVA film to an assembly line; wetting, cleaning, and washing the PVA film through the assembly line; softening, expanding and stretching the PVA film' s x-axis through the assembly line; adding gap filling agent to the PVA film; stretching the PVA film's y-axis through a width frame holder whereby transforming the PVA film into a retarder film.
  • the retarder film is made further comprising the following steps: mounting the retarder film onto a multiple holding frame; pressing a convex mold onto the retarder film to force the retarder film into a desired curved shape through one or more openings of the multiple holding frame; heating the retarder film to reduce the retarder film's moisture content; drying the retarder film.
  • water is used in the process of wetting, cleaning and washing.
  • the processing of wetting, cleaning and washing is continued until the PVA film reaches approximately 70 -85 water saturation.
  • the processing of softening, expanding and stretching is carried out by one or more rollers mounted in the assembly line.
  • the gap filling agent is comprised on of potassium iodide, sodium iodide, copper (I) iodide, boric acid, and sodium tetra borate decahedra.
  • the gap filling agent is added during the processing of softening, expanding and stretching the PVA film.
  • the gap filling agent is added during the processing of softening, expanding and stretching the PVA film.
  • the retarder film is stretched to about 3 to 6 times its original size along its x-axis.
  • the retarder film's width is reduced to about one half of its original width.
  • the retarder film's thickness is reduced to 0.02-0.12 mm thick.
  • the retarder film is heated to about 60°C to 80°C wherein the process of heating is continued until the retarder film' s moisture content is reduced to about 50%; In another embodiment, the process of drying takes place in a environment at
  • method of making a 3-D stereoscopic viewing lens comprising the following steps: mounting a PVA film to an assembly line; wetting, cleaning, and washing the PVA film through the assembly line; softening, expanding and stretching the PVA film's x-axis through the assembly line; adding gap filling agent to the PVA film; stretching the PVA film's y-axis through a width frame holder whereby transforming the PVA film into a retarder film; mounting the retarder film onto a multiple holding frame; pressing a convex mold onto the retarder film to force the retarder film into a desired curved shape through one or more openings of the multiple holding frame; heating the retarder film to reduce the retarder film's moisture content; drying the retarder film.
  • the method further includes preparing a concave mold and a convex mold; adding epoxy onto the concave mold; affixing the retarder film onto the convex mold; positioning the retarder film with convex mold wherein the retarder film with convex mold is pressed down onto the epoxy with concave mold; compressing the convex mold with the concave mold; applying UV treatment to the convex mold and the concave mold; opening the convex mold and the concave mold; affixing a linear polarized film to the convex mold; adding UV glue to the retarder film; pressing the convex mold having the linear polarized film to the concave mold having the retarder film with UV glue; applying UV dry treatment to the concave mold and the convex mold whereby the retarder film laminates with the linear polarized film to form circular polarized film; removing the convex mold from the concave mold; applying UV glue to the circular polarized film; affixing lens substrate to the convex
  • a retarder for a 3-D stereoscopic viewing lens wherein the retarder film is comprised of a PVA film
  • the retarder film is made comprising the following steps: mounting a PVA film to an assembly line; wetting, cleaning, and washing the PVA film through the assembly line; softening, expanding and stretching the PVA film' s x-axis through the assembly line; adding gap filling agent to the PVA film; stretching the PVA film's y-axis through a width frame holder whereby transforming the PVA film into a retarder film; mounting the retarder film onto a multiple holding frame; pressing a convex mold onto the retarder film to force the retarder film into a desired curved shape through one or more openings of the multiple holding frame; heating the retarder film to reduce the retarder film's moisture content; drying the retarder film.
  • a 3-D stereoscopic viewing lens comprising a retarder film wherein the retarder film is comprised of a polymer film selected from a group consisting of PU, PVC, PP, PC, NYLON, PE, CAB, CP, DAC and TAC film is disclosed.
  • the retarder film is made comprising the following steps: keeping a polymer film in a proper temperature at over 90° C -120 ° C until the polymer is malleable; mounting the polymer film to an assembly line; softening, expanding and stretching the polymer film's x-axis through the assembly line; stretching the polymer film's y-axis through a width frame holder whereby transforming the polymer film into a retarder film.
  • a 3-D stereoscopic viewing lens comprising the following steps: providing polymer film selected from a group consisting of PU, PVC, PP, PC, NYLON, PE, CAB, CP, DAC and TAC film; keeping the polymer film in a proper temperature at over 90° C -120 ° C until the polymer is malleable; mounting the polymer film to an assembly line; softening, expanding and stretching the polymer film's x-axis through the assembly line; stretching the polymer film's y-axis through a width frame holder whereby transforming the polymer film into a retarder film; mount the retarder film onto a multiple holding frame; pressing a convex mold onto the polymer film to force the retarder film into a desired curved shape through one or more openings of the multiple holding frame; preparing a concave mold and a convex mold; adding epoxy onto the concave mold; affixing the retarder film onto the convex mold; positioning
  • the making of a 3-D stereoscopic view lens further includes the following steps: preparing a concave mold and a convex mold; adding liquid glass onto the concave mold to form a glass substrate layer; apply glue to the glass substrate layer; affixing the retarder film onto the convex mold; positioning the retarder film with convex mold wherein the retarder film with convex mold is pressed down onto the glass substrate layer with concave mold; compressing the convex mold with the concave mold; applying UV treatment to the convex mold and the concave mold; opening the convex mold and the concave mold;
  • the making of a 3-D stereoscopic view lens further includes the following steps: adding a glass substrate layer to a concave mold; vacuum coating the glass substrate layer with an ITO layer; adding a LCD layer to the ITO layer; affixing s lens substrate layer to a convex mold; adjoin the lens substrate layer with the retarder film;
  • FIG. 1 depicts an embodiment of stretching of the retarder film
  • FIG. 2 depicts an embodiment of the adjustable width holding frame
  • FIG. 3 depicts an embodiment of an adjustable holding frame
  • FIG. 4A depicts an embodiment of the multiple frame holder
  • FIG. 4B depicts an embodiment of the multiple frame holder
  • FIG. 5A depicts an embodiment of a 3-D lens
  • FIG. 5B depicts an embodiment of a 3-D lens
  • FIG. 6 depicts an embodiment of how a retarder film is aligned against a linear polarized film
  • FIG. 7 A depicts an embodiment of a 3-D lens
  • FIG. 7B depicts an embodiment of a 3-D lens
  • FIG. 8 depicts variations of how a retarder film is aligned against a linear polarized film
  • FIG. 9 A depicts an embodiment of a 3-D lens
  • FIG. 9B depicts an embodiment of a 3-D lens
  • FIG. 10 depicts an embodiment of a 3-D lens
  • FIG. 11 depicts another embodiment of stretching of the retarder film
  • FIG. 12 depicts an embodiment of the adjustable width holding frame
  • FIG. 13 depicts an embodiment of an adjustable holding frame
  • FIG. 14A depicts an embodiment of the multiple frame holder
  • FIG. 14B depicts an embodiment of the multiple frame holder
  • the present invention discloses the making of the retarder film using the continuous stretching process to conform to the lens shape. It can reduce the distortion and defect of forming the retarder film.
  • the present invention provides method where it can stretch PVA (using a wetting process), and form it into curve shape and to become a retarder.
  • PVA using a wetting process
  • the thinness of the film, using a wetting process, and proper temperature of polymer makes the polymer fit the shape of mold in perfect match. That is excellent for retarder to form most shape and curve.
  • the new invention can apply to 3-D glasses, advertisement panel, tail light, lamp, especially curved shape.
  • gap filling agent was added to the water tank in the assembly line process to fill almost all the gaps of molecule in PVA film to create a birefngent film, flat or any shape of retarder film. While the curved lens has better 3D effect than flat lens, the new invention further provides method for improving the effect of flat lens because the molecules of PVA or polymer (PU, PVC, PP, PC, NYLON, PE, CAB, CP, DAC and TAC film) are arranged in order.
  • PVA or polymer PU, PVC, PP, PC, NYLON, PE, CAB, CP, DAC and TAC film
  • New method to process retarder with new laminate technology improves the 3D stereoscopic image.
  • the linear polarized film is glued to the retarder film wherein inside the retarder film has inclusion of gap filling agent.
  • the epoxy liquid was laminated to the outside of the retarder film then cured with air or UV light to create an effective "3-D CIRCULAR POLARIZED
  • the new function card will have better birefrigent effect without extra polymer sheet, thus improve the transmission.
  • Other invention includes wherein the past, the use of multiple polymer sheets to support linear polarizer requires the use of moist glue for the polymer sheet to be glued to the linear polarizer. The moisture of the glue often interferes with transmission of light. In the present invention, because the thinness of the PVA film, it makes the application of lamination of PVA film with linear polarizer possible for crystallized lamination.
  • Present invention can reduce the use of either the retarder, linear polarized film materials to half of what the market is currently commanding, primarily due to the use of the application of epoxy to form support.
  • the present invention is a retarder film and a method of making retarder. The major steps in producing the retarder and a 3-D stereoscopic viewing lens are described in the following sections.
  • FIG. 1 depicts one embodiment of an assembly line to prepare a retarder film. Specifically, FIG. 1 depicts the process of continuous stretch of the PVA film along its X-axis. Starting with an untreated roll of PVA film, without directional molecular arrangement. Using rollers to stretch and transport PVA film from one or more stages as follows:
  • gap filling agent mixture of potassium iodide, sodium iodide, copper (I) iodide, boric acid, and sodium tetra borate decahedra
  • the addition of the gap filling agent is used to fill the pores of the molecules to have birefringent effect.
  • PVA film is stretched to about 3 to 6 times its original size along the x-axis, combining stretch, its width is reduced to about one half of its original widths, and its thickness is reduced to 0.12-0.02 mm thick. The molecules of the PVA film will become more evenly aligned.
  • FIG. 2 and FIG. 3 depict one embodiment of a manual and semi-automatic or automatic adjustable clamping frame used for the next step of transforming the PVA film into a retarder film.
  • FIG. 2 depicts one embodiment of a width- adjustable holding frame 208 to hold the PVA film along the Y-axis 209 using a top and bottom clamping frames together with hinges 207;
  • FIG. 3 depicts one embodiment of an adjustable holding frame 308 stretched along the Y-axis 209 to a preset lockable position 311 wherein the extension rod 310 locks it in place.
  • the PVA film is stretched here along the Y axis until the PVA film is 0.05mm - 0.01mm in thickness.
  • the PVA film once stretched in its X-axis and its Y-axis, it becomes a functional retarder film.
  • the retarder film remaining in proper temperature and moisture during the processing phase, is stabilized between lower frame plate and upper frame, which are held together with frame hinges 207. Additional clips can be used to help prevent retarder film from shrinking during shaping.
  • FIG. 4 A depicts one embodiment of the retarder film 401 being formed into a multiple holding frame 408 to form into a curved or flat or any desired shape comprising the steps of: a. stabilize and place retarder film 401 onto the multiple holding frames 408 using multiple holding frame hinges 412;
  • retarder film 412 (FIG. 4B) into the desired curved shape through the oval openings 413 (FIG. 4A) of multiple frame holder 414 (FIG. 4B);
  • retarder film 415 (FIG.4B) at approximately 25°c and 40-50% humidity until its moisture content is about 40%.
  • retarder film is cut and removed from the multiple holding frame 408.
  • multiple holding frame 408 has an opening 413 in the center, which allows convex mold to be pushed through multiple holding frame 408 and against the retarder film 401.
  • One side of convex mold is used to shape the retarder film 401.
  • the convex surface of convex mold is pushed into the flat piece of soft retarder film to bend it into the desired shape, curve or arc.
  • convex mold is made of glass, such as glass in common practice for forming thermosetting resin ophthalmic lenses, or another material that is relatively transparent or semi- transparent polymer, so that the epoxy can be cured by UV light which passes through the mold.
  • convex mold is made of a material which conducts heat, so that heat can pass through the mold.
  • Retarder film is relatively soft because it was “wet” due to its moisture content made, and once it becomes “dry” due to the reduction in moisture content, it will fix or lock in its shape. It is noted that temperatures above 80°c may melt or liquefy the retarder film.
  • retarder film is inspected in a quality control stage after the initial drying for air bubbles, dirt, color evenness, tears, etc.
  • the dioptre and other optical properties of the retarder film can be measured. If all is approved, the lens is marked with a molecule direction. After marking, the retarder film can then be removed to a clean room at room temperature and low humidity levels for further cooling. This produces a curved, dry retarder film that adheres better to epoxy, which eventually becomes part of the 3-D stereoscopic viewing lens.
  • FIG. 11 depicts one embodiment of an assembly line to prepare a retarder film.
  • Polymer film can be polymer Polyurethane (PU), Polyvinyl chloride (PVC),Polypropylene (PP), Polycarbonate (PC), Polyester (PE), (CAB) Cellulose Acetate Butyrate , (CP) Cellulose Acetate Propionate, (DAC) Cellulose Diacetate and (TAC) Triacetate Cellulose film.
  • FIG. 11 depicts the process of continuous stretch of the polymer film along the X-axis. Starting with an untreated roll of polymer film, without directional molecular arrangement. Using rollers to stretch and transport polymer film from one or more stages as follows:
  • Polymer film is stretched to about 3 to 6 times its original size along the x-axis, combining stretch, its width is reduced to about one half of its original widths, and its thickness is reduced to 0.12-0.02 mm thick. The molecules of the polymer film will become more evenly aligned.
  • FIG. 12 and FIG. 13 depict one embodiment of a manual and semi-automatic or automatic adjustable clamping frame used for the next step of transforming the polymer film into a retarder film.
  • FIG. 12 depicts one embodiment of a width-adjustable holding frame 1208 to hold the polymer film along the Y-axis 1209 using a top and bottom clamping frames together with hinges 1207;
  • FIG. 3 depicts one embodiment of an adjustable holding frame 1308 stretched along the Y-axis 1209 to a preset lockable position 1311 wherein the extension rod 1310 locks it in place.
  • the polymer film is stretched here along the Y axis until the PVA film is 0.05mm - 0.01mm in thickness.
  • the polymer film once stretched in its X-axis and its Y-axis, it becomes a functional retarder film. After stretching is done, use the spectrum measure machine and reflection index data to adjust the stretch machine to what is desired.
  • the retarder film remaining in proper temperature during the processing phase, is stabilized between lower frame plate and upper frame, which are held together with frame hinges 1207. Additional clips can be used to help prevent retarder film from shrinking during shaping.
  • FIG. 14A depicts one embodiment of the retarder film 1401 being formed into a multiple holding frame 1408 to form into a curved or flat or any desired shape comprising the steps of: f. stabilize and place retarder film 1401 onto the multiple holding frames 1408 using multiple holding frame hinges 1412;
  • retarder film is cut and removed from the multiple holding frame 1408.
  • multiple holding frame 1408 has an opening 1413 in the center, which allows convex mold to be pushed through multiple holding frame 1408 and against the retarder film 1401.
  • One side of convex mold is used to shape the retarder film 1401.
  • the convex surface of convex mold is pushed into the flat piece of soft retarder film to bend it into the desired shape, curve or arc.
  • FIG. 5A depicts one embodiment of an overview of a 3-D stereoscopic viewing lens comprising a convex mold 521, a concave mold 518 holding epoxy layer 517, retarder film 516, linear polarized film 515 and lens substrate 514. Depicted in FIG. 5B (from the left column down and up and through the right column), the steps are as follows:
  • UV glue 519 on top of polarized function card
  • affixing lens substrate comprised of AC, CR, PU, TAC, or GLASS materials 514 on to convex mold; m. compress molds together; when laminating the retarder 516 and linear polarized 519 , paying careful attention that the angle is correct at +45 degrees and -45 degrees as disclosed in Fig. 6 where the retarder 622 is positioned against linear polarized film 623 at a -45 degree and at a -45 degree; differences within 5 degrees still can be acceptable, n. determine direction of polarization; and
  • the lens' convex and concave mold can be made of transparent glass.
  • About 5cc of hard epoxy 517 is used, which should spread out to form a layer about 0.1 mm - 0.5 mm thick, preferably 0.2 mm - 0.3 mm for good surface tension. This eventually becomes layer of hard epoxy in lens.
  • Epoxy liquid should be heated to about 80°c to 90°c so that they will be liquid or semi-liquid, to help eliminate bubbles.
  • the liquid epoxy is soft enough to flow, but it is not so viscous that it will flow away without adhering.
  • the liquid epoxy 517 can be dripped onto the concave mold 518, smoothly expanding from the center in a circular motion to evenly spread the epoxy 517 to help remove air bubbles. This process can be performed in an environment at approximately room temperature.
  • convex mold 521 and the convex mold 521-plus-retarder film 516 combination is inverted and placed on top of concave mold 518 and attached together. Because the final layer of hard epoxy 517 is less than 0.5 mm, no gasket is needed.
  • UV treatment 520 the liquid epoxy 517 is cured and made hard using ultraviolet light, heat, radiation, pressure, passage of time, or other methods for treatment epoxy.
  • FIG. 7A depicts one embodiment of an overview of 3D Stereoscopic view lens comprising a convex mold 721, a concave mold 726, lens substrate layer 724 and glass lens 725, retarder film 716, linear polarized film 715. Depicted in FIG. 7B (from the left column down and up and through the right column), the steps are as follows:
  • lens substrate AC, CR, PU, TAC, or GLASS
  • convex mold 721 o.
  • lens substrate AC, CR, PU, TAC, or GLASS
  • the retarder-plus-glass collection is then sent to an assembly line with UV treatment equipment to be hardened for about three minutes.
  • Fine shaping can also be performed manually at this stage by cutting away excess retarder.
  • This produces a retarder film with a hard layer of glass on its outer, convex surface.
  • this produces a polarized wafer coated with glass on both sides.
  • the uncoated concave side, the glass-lined convex side, or both sides could then be combined with a base material, through casting in a gasket mold, injection molding, or other methods for combining lens components.
  • Lens substrate can be GLASS, acrylic (AC), polyurethane (PU), triacetate (TAC), casting resin (CR), cellulose acetate (CAB), cellulose propionate (CP), or NYLON; substrate can have one side or two sides' coatings.
  • Linear polarized film also includes partially circular polarized film.
  • FIG. 8 depicts the combinations of lens inserts to right side and left side depending on the direction of TV and projector.
  • FIG. 9A depicts one embodiment of an overview of utilizing PVA film as retarder film, using the methods depicted above, for LCD use comprising a convex mold 921, a concave mold 926, lens substrate layer 924 and glass lens 925, ITO layer 928, LCD layer 927, retarder film 915.
  • the steps are as follows: a. add lens substrate 925 onto the exposed, concave 926 (top flat) side of the mold;
  • ITO electrode conductor
  • liquid crystal display layer (LCD) 927 to concave mold 926;
  • convex mold 921 place convex mold 921 on top; having a lens substrate layer 916 adjoined with UV glue 919 to retarder film 924 so that the concave 926 having LCD 927 surface presses against retarder film 924; by paying careful attention that the angle is correct at +45 degrees and - 45 degrees;
  • LCD liquid crystal display
  • top flat 1021 on top; having a lens substrate layer 1024 adjoined with UV glue 1019 to retarder film 1016 so that the bottom flat 1026 having LCD 1027 surface presses against retarder film 1016; by paying careful attention that the angle is correct at +45 degrees and -45 degrees;

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Polarising Elements (AREA)

Abstract

L'invention porte sur une lentille de visualisation stéréoscopique 3D dans laquelle le film de retardateur est réalisé en un film de PVA (poly(alcool de vinyle)). Une lentille de visualisation stéréoscopique 3D ayant un film polarisé linéaire, une ou plusieurs couches de substrat de lentille, et une couche époxy. Un procédé de réalisation d'un film de retardateur comprenant le montage d'un film de PVA sur une ligne d'assemblage ; le mouillage, le nettoyage et le lavage d'un film de PVA de matrice à travers ladite ligne d'assemblage ; le ramollissement, l'expansion et l'étirement de l'axe x du film de PVA à travers ladite ligne d'assemblage ; l'ajout d'un agent de remplissage d'espace au film de PVA ; l'étirement de l'axe y du film de PVA à travers un support de cadre de largeur et en résultat une transformation du film de PVA en un film de retardateur.
PCT/US2011/024225 2010-02-09 2011-02-09 Procédé et appareil pour réaliser un retardateur dans des lunettes stéréoscopiques Ceased WO2011100350A2 (fr)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US30255310P 2010-02-09 2010-02-09
US61/302,553 2010-02-09
US31359810P 2010-03-12 2010-03-12
US61/313,598 2010-03-12
US32423710P 2010-04-14 2010-04-14
US61/324,237 2010-04-14
US32741010P 2010-04-23 2010-04-23
US61/327,410 2010-04-23
US33485610P 2010-05-14 2010-05-14
US61/334,856 2010-05-14

Publications (2)

Publication Number Publication Date
WO2011100350A2 true WO2011100350A2 (fr) 2011-08-18
WO2011100350A3 WO2011100350A3 (fr) 2011-11-24

Family

ID=44368415

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/024225 Ceased WO2011100350A2 (fr) 2010-02-09 2011-02-09 Procédé et appareil pour réaliser un retardateur dans des lunettes stéréoscopiques

Country Status (1)

Country Link
WO (1) WO2011100350A2 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166871A (en) * 1977-06-29 1979-09-04 Polaroid Corporation Iodine stained light polarizer
US5805336A (en) * 1996-04-05 1998-09-08 Polaroid Corporation Optical lens blank with polarizer aligned between plastic birefringent sheets
US5743980A (en) * 1996-05-02 1998-04-28 Industrial Technology Research Institute Method of fabricating an optical retardation film
US7950798B2 (en) * 2008-01-07 2011-05-31 Mei 3D, Llc Curved lenses configured to decode three-dimensional content

Also Published As

Publication number Publication date
WO2011100350A3 (fr) 2011-11-24

Similar Documents

Publication Publication Date Title
US9005493B2 (en) Method and apparatus for making retarder in stereoscopic glasses
US8379159B2 (en) Method and apparatus for improved retarder of 3D glasses
JP5750141B2 (ja) 光学フィルタを製造する方法及び光学フィルム同士を積層させる装置
US7854506B1 (en) Curved lenses configured to decode three-dimensional content on television and computer screens
US7950798B2 (en) Curved lenses configured to decode three-dimensional content
US8430505B2 (en) Curved lenses configured to decode three-dimensional content
US20140036219A1 (en) Polarized prescription eyewear having a three-dimensional viewing function
WO2011100350A2 (fr) Procédé et appareil pour réaliser un retardateur dans des lunettes stéréoscopiques
CN201859257U (zh) 小孔三维立体眼镜
AU2015200351B2 (en) Curved optical filters
CN204331157U (zh) 一种手机3d显示玻璃
TWI490552B (zh) 立體顯示裝置
US20120069437A1 (en) Mixed use three dimensional eyewear
TWM447993U (zh) 具矯正視力的遮陽與立體兩用鏡片及眼鏡

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11742747

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11742747

Country of ref document: EP

Kind code of ref document: A2