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WO2000021304A1 - Adaptateur pour appareil de prise de vues d'images tridimensionnelles - Google Patents

Adaptateur pour appareil de prise de vues d'images tridimensionnelles Download PDF

Info

Publication number
WO2000021304A1
WO2000021304A1 PCT/KR1998/000339 KR9800339W WO0021304A1 WO 2000021304 A1 WO2000021304 A1 WO 2000021304A1 KR 9800339 W KR9800339 W KR 9800339W WO 0021304 A1 WO0021304 A1 WO 0021304A1
Authority
WO
WIPO (PCT)
Prior art keywords
adapter
liquid crystal
crystal shutter
light
image shooting
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/KR1998/000339
Other languages
English (en)
Inventor
Young Hwa Lee
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2000021304A1 publication Critical patent/WO2000021304A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/565—Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/207—Image signal generators using stereoscopic image cameras using a single 2D image sensor
    • H04N13/211—Image signal generators using stereoscopic image cameras using a single 2D image sensor using temporal multiplexing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B35/00—Stereoscopic photography
    • G03B35/18—Stereoscopic photography by simultaneous viewing
    • G03B35/26—Stereoscopic photography by simultaneous viewing using polarised or coloured light separating different viewpoint images
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/286—Image signal generators having separate monoscopic and stereoscopic modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/296—Synchronisation thereof; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/189—Recording image signals; Reproducing recorded image signals

Definitions

  • the present invention relates to an adapter for cubic image shooting apparatus arranged to be able to shoot an object with its left and right images alternatively incident.
  • two left and right video cameras are utilized to shoot left and right images of an object around a shooter to thereafter compose the shot images.
  • the present invention is disclosed to solve the aforementioned problems and it is an object of the present invention to provide an adapter for cubic image shooting apparatus constructed to be able to shoot an object with its left and right images alternatively incident.
  • an adapter for cubic image shooting apparatus the adapter attached to a video camera mounted with a filming lens and a video output terminal for enabling a cubic image shooting
  • the adapter comprising an adapter housing; and first and second liquid crystal shutter assembly bodies arranging a half reflecting mirror at a slant angle of 45 degrees on a first optical axis of the filming lens and a total reflecting mirror or prism on a second optical axis spaced at a predetermined distance therefrom, thereby activating or deactivating in synchronization with a vertical synchronous signal in front of the haft reflecting and total reflecting mirrors.
  • an adapter for cubic image shooting apparatus the adapter attached to a video camera mounted with a filming lens and a video output terminal for enabling a cubic image shooting
  • the adapter comprising: an adapter housing; a liquid crystal shutter assembly body coupled to a front side of the filming lens; a light-polarizing plate for polarizing an incident light at 90 degrees or zero degree according to the first and second optical axes of the filming lens; a half reflecting mirror for permeating the light polarized at the zero degree light polarizing plate; and a total reflecting mirror or a prism for being mounted at the second optical axis and for totally reflecting the light incident from the second optical axis, whereby, the liquid crystal shutter assembly activates or deactivates according to a vertical synchronous signal through a video output terminal disposed in front of the filming lens.
  • an adapter for cubic image shooting apparatus the adapter attached to a video camera for enabling a cubic image shooting and having two optical axes respectively corresponding to left eye and right eye of a man
  • the adapter comprising: an adapter housing; photo induction means for reflecting and permeating light incident from the two optical axes to induce the light to correspond to an optical axis of the video camera; and liquid crystal shutter means for interdicting or permeating the light incident from the two optical axes, whereby, the two optical axes are respectively spaced, each at a predetermined interval to stay parallel therebetween or to get crossed for a predetermined time interval, and respectively liquid crystal shutter means are operated to be synchronized to a vertical synchronous signal of the video.
  • Figure 1 is a schematic block diagram for illustrating a first embodiment of the present invention
  • Figure 2 is a schematic block diagram for illustrating a second embodiment of the present invention.
  • Figure 3 is a schematic block diagram for illustrating a third embodiment of the present invention
  • Figure 4 is a schematic block diagram for illustrating a fourth embodiment of the present invention.
  • FIGS 1, 2 and 3 illustrate a cubic image shooting apparatus according to embodiments of the present invention, where a video camera 10 includes a filming lens 12 having a zooming function, a tape cassette 14 disposed therein and a video output terminal 16.
  • the cubic image shooting apparatus is constructed within an adapter housing 18, as illustrated in Figure 1, where the adapter housing 18 is coupled to a hood of a filming lens 12 by way of appropriate means.
  • the adapter housing 18 is disposed therein with a half reflecting mirror 20 slantingly arranged at an angle of 45 degrees against a first optical axis (Al) of the filming lens 12 for permeating a light incident from front surface thereof and reflecting a light incident from rear surface thereof, where, a total reflecting mirror 22 is provided at a predetermined distance in parallel with the half reflecting mirror 20.
  • the incident light corresponding to the first optical axis (Al) is directly permeated through to the filming lens 12 along the first optical lens (Al), whereby the light incident on the total reflecting mirror 22 is incident along a second optical axis (A2) disposed in parallel at a predetermined space from the first optical axis (Al), but reflected at a right angle from the total reflecting mirror 22 to thereafter be incident on the filming lens 12 along a light path of the first optical axis (Al) from the half reflecting mirror 20.
  • first and second liquid crystal shutter assembly 30 and 40 which comprise a polarizing plate 24 having a polarized angle of 90 degrees, another light- polarizing plate 26 having a polarized angle of zero degree, and a liquid crystal shutter 28 disposed therebetween.
  • the liquid crystal shutter 28 of the first and second liquid crystal shutter assembly 30 and 40 is connected to an output of a control circuit 32 connected to a video output terminal 16 of the video camera 10.
  • control circuit 32 serves to select only a vertical synchronous signal out of video signals from the video output terminal 16, and send a shutter control signal synchronizing with the vertical synchronous signal to respective liquid crystal shutters 28 from respective outputs 34 and 36.
  • the shutter control signal alternatively turns on and turns off respective liquid crystal shutters 28, by way of example, for 30 frames per second.
  • Figure 2 is a schematic block diagram for illustrating a second embodiment of the present invention, where, throughout the drawing, like reference numerals and symbols as in Figure 1 are used for designation of like or equivalent parts or portions.
  • the second embodiment is characterized in that its construction of liquid crystal shutter assembly body is simplified.
  • the adapter housing 18 constructed to be able to be coupled to the filming lens 12 includes therein a liquid crystal shutter assembly body 50 coupled to a front side of the filming lens 12, a concave lens 37 for allowing light to be incident along the fist and second optical axes (Al) (A2) of the filming lens 12, polarizing plates 24 and 26 for polarizing the light incident through the concave lens 37 at right angle or zero angle, a half-reflecting mirror 20 for permeating the light polarized at the zero light- polarizing plate 26 and a total reflecting mirror 23 for being horizontally disposed with the half-reflecting mirror 20 and for being amounted at the second optical axis (A2) to totally reflect the light of the second optical axis (A2) at an angle of 90 degrees.
  • the liquid crystal shutter assembly body 50 is turned on and turned off by a control circuit 32 which selects a vertical synchronous signal through the video output terminal 16 disposed at a front surface of the filming lens 12 to thereby supply a shutter control signal, where the liquid crystal shutter assembly body 50 includes a liquid crystal shutter 28, a convex lens 38 mounted at one side of the liquid crystal shutter 28 and a zero-degree light-polarizing plate 26 disposed at the other side of the liquid crystal shutter 28.
  • the second embodiment is different from the first embodiment in that one liquid crystal shutter 28 is arranged on the first optical axis (Al) in front of the filming lens 12 along with the zero- degree light-polarizing plate 26, where the zero-degree light-polarizing plate 26 and 90-degree light-polarizing plate 24 are respectively mounted on the first and second optical axes (Al) and (A2) in front of the half- reflecting mirror 20 and the total reflecting mirror 23.
  • the concave lens 37 provided in front of the object 100 can obtain a wide view according to the present embodiment.
  • first and second optical axes (Al) and (A2) do not run parallel but instead are crossed, such that the object 100 can be adjusted to be filmed within a plus (+) parallax.
  • Figure 3 is schematic block diagram for illustrating a third embodiment of the present invention.
  • a prism 22 for totally reflecting the light from the second optical axis (A2) can be used instead of the total reflecting mirror 23.
  • Input of the liquid crystal shutter 28 is connected to the video output terminal 16 to select only the vertical synchronous signal out of the video signals and is connected to an output 35 of a control circuit 32 for generating a shutter control signal which turns on or turns off the liquid crystal shutter 28 at an interval of 1 /60 second.
  • the right image of the object incident from the first optical axis (Al) permeates the light-polarizing plate 26 and the haft reflecting mirror 20 and is incident to the filming lens 12 via the liquid crystal shutter 28 and the light-polarizing plate 26 which the liquid crystal shutter 28 is turned on or turned off, to thereafter be filmed. At this time, the left image of the object 100 is not incident on the filming lens 12.
  • Figure 4 is a schematic block diagram for illustrating a fourth embodiment of the present invention.
  • the fourth embodiment of the present invention is different from the second and third embodiments in that the object 100 and the filming lens 12 are centrally positioned at the first and second optical axes (Al) and (A2), whereby, two liquid crystal shutter means 60 and 70 are employed to alternatively shoot right and left images of the object 100.
  • the adapted housing 18 is provided therein with a concave lens 37 on which light is incident along the first and second optical axes (Al) and (A2) of the filming lens 12, a first total reflection mirror 41 slantingly disposed at an angle of 45 degrees against incidence so that light of the first optical axis (Al) incident through the concave lens 37 can be totally reflected, a second total reflecting mirror 42 spaced at a predetermined distance in parallel with the first total reflection mirror 41 for totally reflecting the light totally reflected from the first total reflecting mirror 41 toward the filming lens 12, and liquid crystal shutter means 60 for dispatching the light totally reflected from the second total reflecting mirror 42 to the filming lens 12.
  • the second optical axis (A2) is arranged thereon a third total reflecting mirror 43 for totally reflecting the light incident to the concave lens 37 along the axis (A2)
  • another liquid crystal shutter means 70 is mounted at a predetermined space on a horizontal line of the third total reflecting mirror 43 for reflecting the light totally reflected from the third total reflecting mirror 43 to the filming lens 12
  • another half reflecting mirror 80 is disposed between the liquid crystal shutter means 60 and 70 and the filming lens 12 for permeating the light which has permeated the liquid crystal shutter means 60 to the filming lens 12 and for totally reflecting the light which has permeated the liquid crystal shutter means 70 to the filming lens 12.
  • the liquid crystal shutter means 60 and 70 are respectively arranged with liquid crystal shutters 61 and 71, both sides of which are respectively mounted with light-polarizing plates 63 and 73 for polarizing the light at zero degree or 90 degrees.
  • the second and third total reflecting mirrors 42 and 43 are respectively mounted with convex lenses 62 and 72.
  • the present embodiment can be constructed, according to its need, with the concave lens 37 positioned on the optical axis of filming lens 12, eliminating the total reflecting mirror 41 and another total reflecting mirror 42 replaced by a half reflecting mirror.
  • the liquid crystal shutters 61 and 71 at the liquid crystal shutter means 60 and 70 communicate with an output of the control circuit 32 connected to the video output terminal 16 of the video camera 10.
  • the control circuit 32 selects only the vertical synchronous signal out of video signals from the video output terminal 16, where, shutter control signals are sent to the liquid crystal shutters 61 and 71 from the respective outputs 34 and 36 and the liquid crystal shutters 61 and 71 are alternatively turned on or turned off according to the shutter control signals.
  • adapter for cubic image shooting apparatus in that concave lenses are used on respective optical axes in order to reduce the size of an adapter housing and to shoot winder scopes of an object, convex lenses can be commonly used in front of filming lenses and three-dimensionally shot images can be appreciated by way of three-dimensional perspective glasses comprising a combination of light-polarizing plates and liquid crystal shutters.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne un adaptateur (18) pour un appareil de prise de vues d'images tridimensionnelles, l'adaptateur (18) étant fixé à une caméra vidéo (10) équipée d'une lentille pour filmer (12) et un terminal de sortie de vidéo (16) permettant la prise de vue d'une image tridimensionnelle. L'adaptateur comprend des premier et second corps (30, 40) d'assemblage d'obturateurs à cristaux liquides et un miroir semi-refléchissant (20) à un angle d'inclinaison de 45° sur un premier axe optique de la lentille pour filmer (12) et un miroir ou prisme (22) totalement réfléchissant sur un second axe optique éloigné à une distance prédéterminée du premier. Ainsi, l'adaptateur peut être activé ou désactivé en synchronisation avec un signal vertical synchrone en face des miroirs semi-réfléchissant (20) et totalement réfléchissant (22) ce qui lui confère un avantage. Cet avantage vient de ce que les lentilles concaves sont utilisées sur des axes optiques respectifs de manière à réduire la taille du boîtier d'adaptateur et à prendre des vues d'un objet vue par vue, de ce que les lentilles convexes peuvent être utilisées en face des lentilles (12) et de ce que des images tridimensionnelles peuvent être visualisées par des verres à perspective tridimensionnelle comprenant une combinaison de plaques polarisant la lumière (24, 26) et d'obturateurs à cristaux liquides (28).
PCT/KR1998/000339 1998-10-01 1998-10-28 Adaptateur pour appareil de prise de vues d'images tridimensionnelles Ceased WO2000021304A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1998/41450 1998-10-01
KR1019980041450A KR20000024767A (ko) 1998-10-01 1998-10-01 입체영상 촬영장치용 어댑터

Publications (1)

Publication Number Publication Date
WO2000021304A1 true WO2000021304A1 (fr) 2000-04-13

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Application Number Title Priority Date Filing Date
PCT/KR1998/000339 Ceased WO2000021304A1 (fr) 1998-10-01 1998-10-28 Adaptateur pour appareil de prise de vues d'images tridimensionnelles

Country Status (2)

Country Link
KR (1) KR20000024767A (fr)
WO (1) WO2000021304A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1248227A3 (fr) * 2001-04-04 2009-03-25 Panasonic Corporation Appareil d'interface utilisateur
GB2468138A (en) * 2009-02-25 2010-09-01 Ugcs Stereoscopic imaging apparatus and adaptor for single lens camera
US20110242287A1 (en) * 2010-03-31 2011-10-06 Michael Cieslinski Stereoscopic Objective
CN106322062A (zh) * 2016-11-01 2017-01-11 北京视觉智能科技有限公司 多角度拍摄支架及系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100379763B1 (ko) * 2001-04-14 2003-04-10 강승연 입체안경 없이 볼 수 있는 입체영상촬영장치
KR100761336B1 (ko) * 2004-09-03 2007-09-27 홍경희 입체영상 촬영장치
KR101247903B1 (ko) * 2011-04-14 2013-03-26 옵틱스앤라이팅솔루션 주식회사 ３ｄ 영상 촬영용 광학 모듈
KR101578890B1 (ko) 2014-07-17 2015-12-21 김성도 입체 동영상 촬영용 장치 및 카메라
KR102805464B1 (ko) * 2019-12-04 2025-05-09 현대자동차주식회사 이미지 획득 장치 및 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02199985A (ja) * 1989-01-27 1990-08-08 Nippon Atsudenki Kk 立体システムビデオカメラ
JPH0576052A (ja) * 1991-09-11 1993-03-26 Matsushita Electric Ind Co Ltd 映像切り替え装置
WO1994028681A1 (fr) * 1993-05-24 1994-12-08 Deutsche Thomson-Brandt Gmbh Procede permettant de produire une image stereoscopique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02199985A (ja) * 1989-01-27 1990-08-08 Nippon Atsudenki Kk 立体システムビデオカメラ
JPH0576052A (ja) * 1991-09-11 1993-03-26 Matsushita Electric Ind Co Ltd 映像切り替え装置
WO1994028681A1 (fr) * 1993-05-24 1994-12-08 Deutsche Thomson-Brandt Gmbh Procede permettant de produire une image stereoscopique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 483 (E - 993) 1990 *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 411 (E - 1406) 1993 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1248227A3 (fr) * 2001-04-04 2009-03-25 Panasonic Corporation Appareil d'interface utilisateur
GB2468138A (en) * 2009-02-25 2010-09-01 Ugcs Stereoscopic imaging apparatus and adaptor for single lens camera
US20110242287A1 (en) * 2010-03-31 2011-10-06 Michael Cieslinski Stereoscopic Objective
EP2375275A3 (fr) * 2010-03-31 2011-12-28 Arnold & Richter Cine Technik GmbH & Co. Betriebs KG Objectif stéréo
CN106322062A (zh) * 2016-11-01 2017-01-11 北京视觉智能科技有限公司 多角度拍摄支架及系统
CN106322062B (zh) * 2016-11-01 2019-01-11 北京清影机器视觉技术有限公司 多角度拍摄支架及系统

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