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WO2024063167A1 - Lunettes de protection et méthode de protection des yeux - Google Patents

Lunettes de protection et méthode de protection des yeux Download PDF

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Publication number
WO2024063167A1
WO2024063167A1 PCT/JP2023/038579 JP2023038579W WO2024063167A1 WO 2024063167 A1 WO2024063167 A1 WO 2024063167A1 JP 2023038579 W JP2023038579 W JP 2023038579W WO 2024063167 A1 WO2024063167 A1 WO 2024063167A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
shielding
liquid crystal
crystal display
period
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/JP2023/038579
Other languages
English (en)
Japanese (ja)
Inventor
行雄 松代
信之 三川
新介 秋田
秀樹 林
忍 日上
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.)
Toypackcreation Co Ltd
Asahi Corp
Chiba University NUC
Asahi Tsusho Co Ltd
Original Assignee
Toypackcreation Co Ltd
Asahi Corp
Chiba University NUC
Asahi Tsusho Co Ltd
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 Toypackcreation Co Ltd, Asahi Corp, Chiba University NUC, Asahi Tsusho Co Ltd filed Critical Toypackcreation Co Ltd
Publication of WO2024063167A1 publication Critical patent/WO2024063167A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/008—Methods or devices for eye surgery using laser
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot

Definitions

  • the present invention relates to safety glasses and an eye protection method.
  • So-called laser therapy is a non-contact and minimally invasive method that removes and treats the cause by irradiating laser light onto the treatment target area that is the cause of the disease and destroys the cells in the treatment target area. Because of its advantages, it was introduced in Japan around 1980, mainly in ophthalmology, and has since been used in many medical fields.
  • Laser treatment destroys target cells by irradiating laser light, and when this light enters the human eye, it can cause problems such as inflammation of the cornea and conjunctiva of the eyeball and clouding of the crystalline lens. There is a risk that it may cause Therefore, when performing laser treatment, not only the person receiving the treatment (hereinafter referred to as the ⁇ treatment target''), but also the person performing the treatment (hereinafter referred to as the ⁇ practitioner'') must protect their eyes so that the laser light does not enter their eyes. It is compulsory to wear protective goggles to protect the
  • Patent Document 1 discloses a technology in which a light sensor is provided and when harmful flashes are detected, an LCD lens is activated to block light.
  • Patent Document 1 the light is only blocked when the optical sensor detects a harmful flash, and it is already too late to start driving the LCD lens at the moment the sensor detects harmful flash, and the laser light is irradiated into the eyes of the practitioner. There is a problem that the synchronization with the laser beam irradiation is not sufficient, such as when the laser beam is irradiated.
  • an object of the present invention is to provide protective glasses with higher light-shielding effect and an eye protection method using the same.
  • Safety glasses that solves the above problems include a light receiving section that receives laser light, a light blocking control section that determines a light blocking period based on the output of the light receiving section, and a light blocking section that blocks light at the light blocking period determined by the light blocking control section. and a light-shielding lens section provided with a liquid crystal display device.
  • the light shielding control section also changes the light shielding cycle when the cycle of the received laser light changes.
  • the OD value in the visible wavelength region is 6 or more.
  • the light-shielding lens portion has an OD value of 6 or more in a region other than the visible wavelength region.
  • the light shielding period is preferably in the range of 20 ms or more and 5 seconds or less.
  • the light shielding period is in a range of 0.1 ms or more and 50 ms or less.
  • the light-shielding lens section includes a plurality of liquid crystal display devices, each of which serves as a pair of eye protection sections that protect the left or right eyeball, and further includes a liquid crystal display.
  • the device includes a frame portion that holds the device, and the light receiving portion is disposed between the pair of eye protection portions of the frame portion.
  • an eyeball protection method includes a step of wearing safety goggles equipped with a liquid crystal display device, a step of receiving laser light and determining a shading period of the laser beam, and a step of installing the liquid crystal display device according to the shading period.
  • the method includes a step of shielding the light from light.
  • FIG. 1 is a diagram schematically showing safety glasses according to an embodiment.
  • FIG. 2 is a diagram showing functional blocks of protective glasses according to an embodiment.
  • FIG. 3 is a diagram illustrating an image of control in a light shielding control section of the safety glasses according to the embodiment.
  • FIG. 3 is a diagram illustrating an image of control in a light shielding control section of the safety glasses according to the embodiment.
  • FIG. 3 is a diagram illustrating an image of control in a light shielding control section of the safety glasses according to the embodiment.
  • FIG. 3 is a diagram illustrating an image of control in a light shielding control section of safety glasses according to an embodiment.
  • FIG. 1 is a diagram schematically showing safety glasses (hereinafter referred to as "main glasses") 1 according to the present embodiment
  • FIG. 2 is a diagram showing functional blocks of the main glasses 1.
  • the glasses 1 include a light receiving section 2 that receives laser light, a light blocking control section 3 that determines a light blocking period based on the output of the light receiving section 2, and a light blocking period that is determined by the light blocking control section 3. It has a light-shielding lens section 4 equipped with a liquid crystal display device 41 that shields light.
  • the glasses 1 determine the emission period of the received laser light, preferably the emission period and the emission period (hereinafter also referred to as "emission period, etc.”), determine the light-blocking period, etc., and It becomes possible to sufficiently correlate the periods of light irradiation and light shielding, and to provide protective glasses with higher light shielding effects and an eye protection method using the same.
  • the glasses 1 include a light receiving section 2 that receives laser light.
  • the light receiving section 2 is not limited as long as it can receive laser light and output it as a signal in response to the received light, and may be a known semiconductor element such as a photoelectric conversion element that can convert optical energy into an electrical signal. It is preferable that there be, but as mentioned above, it is not limited to this.
  • the glasses 1 receive laser light with the light receiving section 2 and perform a predetermined drive, and as a prerequisite for this drive, a separate laser treatment device exists.
  • the laser treatment device is a separate device independent of the glasses 1, and is capable of emitting laser light in a predetermined wavelength range.
  • the laser light emitted from the laser treatment device is irradiated onto the treatment target area of the patient, and by destroying the cells in the treatment target area, the cause of the disease can be removed and treated.
  • the laser treatment device is not limited as long as it has the above-mentioned functions, and any commercially available laser treatment device can be used.
  • the wavelength range of the laser light received by the light receiving unit 2 of the glasses 1 is not particularly limited, but is preferably the laser light used in so-called laser treatment.
  • This range is preferably, for example, the ultraviolet, visible, or infrared wavelength range, and more specifically, in the ultraviolet range, it is preferably 200 nm to 400 nm, in the visible range, it is preferably 300 nm to 800 nm, and in the infrared range, it is preferably 700 nm to 1500 nm.
  • the output range of the laser light that can be received by the light receiving section 2 of the glasses 1 is preferably compatible with the output range of the laser light used for laser treatment, as described above.Specifically, 1. It is preferable to be able to receive light of 0 ⁇ 10 ⁇ 4 J /m 2 or more and 0.1 ⁇ 10 ⁇ 4 J /m 2 or less.
  • the eyeglasses 1 include the light shielding control section 3 that determines the light shielding period based on the output of the light receiving section 2.
  • the light-shielding control unit 3 receives the input of an electrical signal output when the light-receiving unit 2 receives a laser beam, determines the light emission period of this laser light, and adjusts the light-shielding period, preferably the light-shielding period, in accordance with this.
  • a cycle and a light-shielding period (hereinafter referred to as "light-shielding period, etc.") are determined, and a control signal for controlling the drive of the liquid crystal display device 41 of the light-shielding lens section 4 is output. Note that the details of the drive control by the light shielding control section 3 will be described in detail later.
  • the specific structure of the light-shielding control section 3 is not limited as long as it has the above functions, but resistors, capacitors, transistors, integrated circuits, etc. are arranged on an insulating substrate on which electrical wiring is printed.
  • a preferred example is a printed circuit board that can realize the desired operation.
  • the light receiving section 2 and the liquid crystal display device 41 are electrically connected to this, and desired driving can be performed.
  • the eyeglasses 1 include the light-shielding lens section 4 equipped with the liquid crystal display device 41 that blocks light based on the light-shielding period etc. determined by the light-shielding control section 3.
  • the light-shielding lens section 4 is provided to place the liquid crystal display device 41 in front of the eyes when the person using the glasses 1 wears the glasses 1, and corresponds to the lens section of normal glasses.
  • the "lens” of glasses generally refers to an optical element that refracts and diverges or converges incident light in order to achieve a desired power, but the “lens” of the glasses 1
  • An optical element such as a liquid crystal display device 41 that simply transmits the incident light or blocks the light without changing the optical path because it covers the user's eyes to prevent laser light from entering the user's eyes. It is a lens in a broad sense.
  • the light-shielding lens portion 4 of the eyeglasses 1 includes the liquid crystal display device 41 as described above.
  • the liquid crystal display device 41 is a member that functions as a so-called optical shutter that transmits and blocks laser light, or as an eye protection unit.
  • the structure of the liquid crystal display device 41 is not limited to any known liquid crystal display device as long as it can transmit or block light according to the electric signal output in accordance with the light blocking period and the light blocking period determined by the light blocking control unit 3. can be used.
  • the liquid crystal display device 41 generally includes a pair of substrates on which electrodes are formed on at least one side, a liquid crystal material layer containing a liquid crystal material disposed between the pair of substrates, and a pair of substrates sandwiching the pair of substrates.
  • the liquid crystal display device 41 has a method of transmitting light when a voltage is applied and blocking light when no voltage is applied (so-called normally black), and a method of transmitting light when no voltage is applied. or a method of blocking light when a voltage is applied (so-called normally white).
  • the response speed of liquid crystal is faster and easier to control when voltage is applied, and it is easier to use because it is in a light-transmitting state when no voltage is applied, so when voltage is applied, it is in a light-blocking state. It is preferable that the color is so-called normally white.
  • the liquid crystal display device 41 in the light-blocking lens section 4 of the glasses 1 may be configured as a single liquid crystal display device that covers both the left and right eyes of the user as a whole, but it is preferable to configure it as multiple liquid crystal display devices, more specifically, two liquid crystal display devices, arranged independently for each of the left and right eyes.
  • the liquid crystal display device 41 of the glasses 1 changes from a state in which it transmits light (hereinafter referred to as a "light transmitting state") to a state in which it blocks light (hereinafter referred to as a "light blocking state”).
  • the response time is not limited as long as the light transmitting state and the light shielding state can be sufficiently realized, and for example, it is preferably 3 ms or less, more preferably 1 ms or less. .
  • response time in this specification is the reference time from the light transmission state to the light shielding state, where the amount of stable light transmission in the light transmission state is 1, and the stable light transmission amount in the light shielding state is 1.
  • the transmitted amount of light it is defined as the time from 0.8 to 0.2.
  • the liquid crystal display device 41 of the present glasses 1 needs to transmit or block laser light, it is preferable that the liquid crystal display device 41 is capable of transmitting and blocking the laser light in the wavelength region.
  • the OD value is preferably 5 or more at the wavelength of the laser light, more preferably 6 or more. More specifically, in the light-blocking state, the OD value is preferably 5 or more at 350 nm, which is a representative wavelength in the visible region of laser light used in laser treatment, more preferably 6 or more.
  • the OD value refers to the optical density value, which represents the attenuation rate of the incident light. For example, when the OD value is 6, it means that the amount of transmitted light is 1/1000000 (1/106) if the amount of incident light is 1. This makes it possible to prevent strong laser light from entering the user's eyes in the light-blocking state.
  • the OD value is 0 in the visible region, but it is realistic to set it to 0 because the liquid crystal display device uses a polarizing plate. Therefore, it is preferably 1 or less.
  • the OD value is preferably 1 or less at 350 nm, which is a typical wavelength of laser light used in laser treatment, in a light transmitting state. Note that ideally it is 1 or less over the entire visible wavelength region (wavelengths from 300 nm to 800 nm).
  • the light-shielding lens portion 4 of the present glasses 1 includes, in addition to the liquid crystal display device 41 described above, a frame portion 42 for holding and fixing the liquid crystal display device 41 in front of the user's eyes. Furthermore, the glasses 1 have the advantage that by fixing the light receiving section 2 and the light shielding control section 3 to the frame section 42, the structure is simple and similar to that of ordinary glasses, making it easier to handle and wear.
  • the frame portion 42 of the light-shielding lens portion 4 of the eyeglasses 1 preferably has a configuration of general eyeglasses, and specifically, a rim portion 421 that supports the liquid crystal display device 41 that functions as a lens. , a nose pad part 422 for fitting on the user's nose to prevent the glasses 1 from slipping off, and a pair of temple parts 423 connected to the rim part 421 and for being worn on the ears.
  • the temple portion 423 and the rim portion 421 be foldable, for example, via a hinge 424 or the like.
  • the light receiving section 2 may be, but not limited to, the vicinity between the user's left and right eyes of the rim section 421, specifically, between the liquid crystal display device as an eyeball protection section (so-called It is preferable to provide it in the bridge part).
  • the light receiving section 2 near the eyes, especially at a position equally close to each of the left and right eyes, it is possible to accurately detect the laser beam closer to the eye position and prevent the laser beam from entering the eyes. It becomes possible.
  • the light shielding control section 3 of the glasses 1 can be efficiently arranged without restricting the user's field of view by providing it in the temple section 423, although this is not limited to the above. be.
  • the light shielding control unit 3 and the liquid crystal display device 41 of the glasses 1 require electric power to drive, but this electric power may be obtained by connecting to an external power source through a conductive wire, or by connecting the internal power source to an external power source. It may also be connected to a battery or the like.
  • a battery it is preferable to provide the light shielding control part 3 in one side of the temple part 423, and to provide a battery in the other side. By doing so, there is an advantage that the weight of the members connected to the pair of temple parts 423 can be balanced.
  • FIG. 3 is a diagram showing an image of control by the light shielding control section 3.
  • the horizontal axis represents time
  • the vertical axis represents the light blocking state (or light transmitting state) of the liquid crystal of the liquid crystal display device and the laser light irradiation state (light emitting state and extinction state), respectively. Note that since there are several patterns of control methods for the light shielding control section, each pattern will be explained separately.
  • the light receiving section 2 receives laser light.
  • Laser light is a so-called pulse wave, which repeats emission and extinction at regular intervals.
  • the light receiving section 2 detects this light emission and extinction, and inputs the result to the light shielding control section 3 as an electric signal. That is, the laser beam irradiation state shown in this figure shows the output signal obtained by the light receiving section 2. Further, the light shielding control section 3 estimates the emission period and emission time of the laser beam based on the above output signal.
  • the “emission period” refers to the time interval between the emission of one pulse wave of laser light and the emission of the next pulse wave
  • the emission time refers to the time interval between the emission of one pulse wave of laser light and the emission of the next pulse wave. This refers to the duration of light emission.
  • the light emission period and light emission time of this laser light vary depending on the laser treatment device, and even in the same laser treatment device, they vary depending on the adjustment of its output, etc. Therefore, with the present glasses 1, it is possible to deal with any situation by understanding the light emission period and light emission time.
  • the emission period and emission time of the laser light can be calculated using any calculation method. For example, it is possible to check the emission and extinction of laser light multiple times and calculate the average of the emission time and emission period.Also, it is possible to simply calculate the time between the emission (pulse wave) of the two immediately preceding laser beams.
  • the light emitting period may be set to 1, and the light emitting duration may be set to the light emitting duration of the immediately preceding laser light.
  • the light shielding control unit 3 determines the laser light shielding time and the light shielding cycle based on the output of the light receiving unit 2. Specifically, as described above, the light emission cycle and light emission time of the laser light are estimated, an electrical signal is output to drive the liquid crystal display device, and the liquid crystal display device is in a light-blocking state during the light emission period when the laser light is irradiated. , and the light is transmitted during the period when the laser light is quenched. Terms such as the shading period will be described later.
  • the liquid crystal control start time is set as the liquid crystal control start time, and when the liquid crystal response is completed, the laser beam is emitted. Adjust the timing so that it is irradiated.
  • This control start time is determined by recording the response time of the liquid crystal display device in advance, adding a margin (time) to ensure a sufficiently stable response, and calculating backward from the start time of the laser light emission period. .
  • the time from the start time of control of the liquid crystal display device to the start time of the laser light emission period is defined as a "liquid crystal rise period".
  • the light blocking control unit 3 controls the driving of the liquid crystal display device so that the liquid crystal display device enters the light transmitting state. Specifically, the liquid crystal display device is controlled to be in a light-blocking state for a light-blocking period (preferably a margin added) from the start time of the light-emitting period, and then the liquid crystal display device is in a light-transmitting state.
  • the light shielding control unit 3 can protect the user's eyes by repeating the above processing according to the light shielding period of the laser beam.
  • the light-shielding period of the liquid crystal display device controlled by the light-shielding control unit 3 is preferably in the range of 10 ms or more and 5 seconds or less, although it is not limited.Also, the light-shielding period can be adjusted as appropriate; It is preferable to be in the range of .1 ms or more and 50 ms or less.
  • the “shading period” refers to a period during which the liquid crystal display device is in a light-shielding state
  • the “light-shielding period” refers to a period during which this light-shielding state is repeated.
  • the light shielding control unit 3 preferably changes the light shielding cycle when the light emitting cycle or light emitting time of the received laser light changes.
  • the emission period of laser light differs depending on the type of treatment and the type of device. Therefore, when the light shielding period changes, it is preferable to change it to follow this change.
  • FIG. 4 is a diagram showing an image of the control of the light shielding control section 3 in this pattern.
  • the function of the light receiving section 2 is the same.
  • the light shielding control unit 3 can neither estimate the laser light emission time nor set the light shielding time. Specifically, since the light receiving unit 2 constantly receives laser light, it is possible to grasp in real time whether the laser light is in a light emitting state or a light extinction state. That is, the light shielding control unit 3 estimates the light emission period of the laser light and its light emission start time, and sets the control start time similar to the above pattern 1, while once the light shielding state is set, the light shielding state is maintained.
  • the output of the light receiving section 2 is checked, and if the output of the light receiving section 2 is in the extinction state, the liquid crystal display device is controlled to be in the light transmitting state.
  • This pattern has the advantage that even if there is a shift in the light emission start time or an error in the light emission cycle and light emission time, the laser light can be reliably blocked.
  • this light-shielding state is also referred to as a "spontaneous light-shielding state").
  • the glasses 1 preferably include a light blocking button that creates a light blocking state for a certain period of time.
  • a light-blocking state is formed at the user's will for a certain period of time, and by irradiating the laser light within this period, the light receiving section 2 receives the laser light several times, and the light emission period and light emission are After measuring the time, it becomes possible to realize the light blocking state and the light transmitting state as described above.
  • the length of the spontaneous light-shielding state is preferably long enough for the user to recognize the light-shielding state and start irradiating the laser beam. It is preferably 5 seconds or more and 60 seconds or less.
  • the spontaneous light-shielding state is repeated with a light-transmitting state in between.
  • the user can easily measure the timing while avoiding the inconvenient state of being constantly in a light-shielded state.
  • the user can time the laser beam irradiation while feeling this flickering.
  • the length of this light transmission state is about the same as the above-mentioned spontaneous light blocking period. In this case, if the emission period of the laser beam can be sufficiently confirmed in the spontaneous light-shielding state and the light-transmitting state, the spontaneous light-shielding state is terminated and the light-shielding state as the normal operation described above is resumed. The light transmission state will be repeated.
  • the light-shielding time of the spontaneous light-blocking state and the time of the light-transmitting state have a plurality of patterns.
  • the above spontaneous shading time can be set broadly to include the light emission time and light emission cycle of the laser light emitted by major laser treatment devices, thereby eliminating the need for detailed settings by the user.
  • the luminescence time and luminescence cycle are significantly different from those described above. Therefore, by providing a periodic pattern different from the above, there is an advantage that it is possible to cope with such an exceptional case.
  • the timing is not right and the laser beam is irradiated onto the light-transmitting state.
  • the present invention has industrial applicability as protective goggles and an eye protection method using the same.

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Eyeglasses (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne des lunettes de protection ayant un effet de protection contre la lumière élevé, et une méthode de protection des yeux à l'aide des lunettes. Des lunettes de protection (1) selon un aspect de la présente invention comprennent : une unité de réception de lumière (2) qui reçoit une lumière laser ; une unité de commande de protection contre la lumière (3) qui détermine un cycle de protection contre la lumière sur la base d'une sortie provenant de l'unité de réception de lumière ; et une unité de lentille de protection contre la lumière (4) qui comprend un dispositif d'affichage à cristaux liquides (41) pour protéger contre la lumière au cycle de protection contre la lumière déterminé par l'unité de commande de protection contre la lumière. Une méthode selon un autre aspect de la présente invention pour protéger les yeux pendant une chirurgie à l'aide de lunettes de protection comprend : une étape pour faire porter à un utilisateur des lunettes de protection comprenant un dispositif d'affichage à cristaux liquides ; une étape pour recevoir une lumière laser et déterminer un cycle de protection contre la lumière pour la lumière laser ; et une étape pour protéger contre la lumière avec le dispositif d'affichage à cristaux liquides conformément au cycle de protection contre la lumière.
PCT/JP2023/038579 2022-09-21 2023-10-25 Lunettes de protection et méthode de protection des yeux Ceased WO2024063167A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022150578A JP7519047B2 (ja) 2022-09-21 2022-09-21 保護メガネ及び眼球保護方法
JP2022-150578 2022-09-21

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Publication Number Publication Date
WO2024063167A1 true WO2024063167A1 (fr) 2024-03-28

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WO (1) WO2024063167A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03153210A (ja) * 1989-11-10 1991-07-01 Mita Ind Co Ltd 液晶シャッター付眼鏡
JP2004283564A (ja) * 2003-03-19 2004-10-14 Gpt Glendale Inc 目保護方法及び装置
KR101815982B1 (ko) * 2017-08-24 2018-01-08 정승일 집중력 향상을 위한 안경 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03153210A (ja) * 1989-11-10 1991-07-01 Mita Ind Co Ltd 液晶シャッター付眼鏡
JP2004283564A (ja) * 2003-03-19 2004-10-14 Gpt Glendale Inc 目保護方法及び装置
KR101815982B1 (ko) * 2017-08-24 2018-01-08 정승일 집중력 향상을 위한 안경 장치

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JP2024044820A (ja) 2024-04-02
JP7519047B2 (ja) 2024-07-19

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