WO2016125694A1 - 変色光学フィルター及びこれを備えたメガネ - Google Patents
変色光学フィルター及びこれを備えたメガネ Download PDFInfo
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- WO2016125694A1 WO2016125694A1 PCT/JP2016/052604 JP2016052604W WO2016125694A1 WO 2016125694 A1 WO2016125694 A1 WO 2016125694A1 JP 2016052604 W JP2016052604 W JP 2016052604W WO 2016125694 A1 WO2016125694 A1 WO 2016125694A1
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- color
- optical filter
- polarizer
- polarizing plate
- hue
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/288—Filters employing polarising elements, e.g. Lyot or Solc filters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- 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
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- 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
- G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
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- 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
- G02C7/108—Colouring materials
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- 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 relates to a color-changing optical filter in which the hue or saturation of transmitted light changes by rotating a polarization plane, and glasses equipped with the same. More specifically, for example, the present invention relates to a color-changing optical filter that is useful for the use of dedicated glasses for color-blind persons to distinguish red and green by changing hue or saturation.
- Patent Document 1 discloses an electronic sunglasses capable of controlling display of various colors using a red liquid crystal, a green liquid crystal, and a blue liquid crystal.
- the use of the electronic sunglasses is a use of sunglasses that displays colors according to the user's preference such as personal preference, place, fashion, etc., and no consideration is given to the use of the special glasses for the color weak.
- the control structure uses a cholesteric liquid crystal to reflect light of some wavelengths, and the structure is complicated and has many components and is not practical.
- Patent Document 2 discloses a color liquid crystal display element using nematic liquid crystal having a specific refractive index, although it relates to the field of liquid crystal display panels, not glasses.
- a color liquid crystal display element composed of a liquid crystal cell provided with a color filter and a pair of polarizing films arranged with the liquid crystal cell sandwiched between them is light for each color filter.
- a conventional color liquid crystal display panel using a color filter absorbs light of a specific wavelength by the color filter. It is described that since colored light is obtained, the light transmittance is lowered and the display is darkened. That is, in Patent Document 2, only the performance of the display panel is considered, and no other use such as glasses is studied.
- a color-changing optical filter having two or more polarizers containing a dichroic dye and a frame that supports the polarizer, and a polarization plane incident on at least one polarizer or at least one polarizer
- the discoloration optical filter according to [1] wherein at least one of the two or more polarizers is a chromatic color polarizer.
- the discoloration optical filter according to [1] wherein the polarization plane is relatively rotated by rotating at least one polarizer itself.
- a practical discoloration optical filter capable of changing the hue or saturation with a relatively simple structure and glasses equipped with the same.
- a discoloration optical filter that has a high lightness of transmitted light in a normal use state, and has a low lightness of transmitted light but a high saturation state when changing the hue or saturation as necessary. Can be provided.
- the “polarizer” means a member itself having polarization ability, and its shape is not limited at all.
- the “polarizing plate” means a member in which a polarizer is provided on a plate-like substrate having light transmittance.
- an “optical filter” means a filter used for the purpose of changing the optical properties of light incident on and transmitted through the filter.
- the “color-changing optical filter” means a device that has a mechanism for rotating the polarization plane relatively, thereby specifically changing the hue or saturation of transmitted light.
- the shape of a polarizer is not specifically limited, A film form is preferable.
- the film-like polarizer may be laminated on a desired substrate and used as a polarizing plate.
- the material of the polarizer include resins such as polyester and polyvinyl alcohol.
- a stretched film of polyester or polyvinyl alcohol can be suitably used.
- the polarizer in the present invention contains a dichroic dye.
- This dichroic dye usually has a larger transition moment in the major axis direction than that in the minor axis direction, or a larger transition moment in the minor axis direction than in the major axis direction.
- the dichroic ratio of the dye is not particularly limited, and a dye suitable for a specific use of the optical filter may be used as appropriate.
- various known dichroic dyes can be used. Examples of the dye include, but are not limited to, azo dyes, anthraquinone dyes, perylene dyes, indanthrone dyes, and imidazole dyes.
- the dichroic dye of at least one polarizer has a large absorption of specific visible light, and its color is colored instead of black or gray.
- the hue of the colored polarizer include red, green, blue, cyan, magenta, and yellow.
- the color of the colored polarizer is not limited by lightness or saturation.
- At least one of the two or more polarizers is a chromatic color polarizer (that is, not a black, gray, white, or other achromatic color).
- a chromatic color polarizer that is, not a black, gray, white, or other achromatic color.
- achromatic color polarizer that is, not a black, gray, white, or other achromatic color.
- normally only achromatic (gray) polarizers are used. This is because a general liquid crystal display element does not have a function of changing the hue and saturation as in the present invention.
- chromatic color means a color having a saturation C * of 5 or more.
- the saturation C * of the chromatic polarizer is preferably large, preferably 10 or more, more preferably 15 or more.
- the lightness L * of the chromatic color polarizer is high. Specifically, the lightness L * is preferably 50 or more, more preferably 60 or more.
- C * + L * is preferably 80 or more, more preferably 85 or more in the use for the color weak.
- both the chroma C * and the lightness L * are too high in order to achieve both the chroma C * and the lightness L * of the chromatic color polarizer, and the chroma C * is preferably 50 or less. Preferably it is 40 or less.
- the lightness L * of the chromatic color polarizer is preferably 95 or less.
- the saturation of chromatic color polarizers that can change the saturation of the optical filter according to each application C * may be adopted.
- the preferred range of the lightness L * is the same as that of the use of the color weak person.
- the lightness L * that can be used is different.
- the lightness L * is preferably 10 or more, more preferably 30 or more, particularly preferably 50 or more, and preferably 100 or less, more preferably 95 or less. is there.
- the chroma C * is preferably 10 or more, more preferably 15 or more, and preferably 50 or less, more preferably 40 or less.
- C * + L * is preferably 80 or more, more preferably 85 or more
- an achromatic color means a color that is not a chromatic color, and is a low-saturation color region including black, gray, and white, but is not limited to black, gray, and white.
- a gray polarizer (a polarizer with high transmittance on the plane of polarization, a polarizer with low transmittance on the plane orthogonal to the plane of polarization, preferably with low saturation) and a red polarizer (on the plane of polarization at all wavelengths).
- the transmittance is high and the transmittance of the surface orthogonal to the polarization plane varies depending on the wavelength, so that the transmitted light of the surface orthogonal to the polarization plane is red and has high saturation).
- the relative angle of the plane of polarization of the single polarizer is 0 °, that is, when it is parallel, the transmitted light is white light.
- the transmitted light becomes red, and the red portion of the observation object can be seen as it is.
- the transmittance of the green portion of the transmitted light decreases and the brightness decreases.
- the red-green weak person can distinguish the red portion and the green portion of the observation object by the difference in brightness.
- a gray polarizer and a green polarizer transmittance is high at all wavelengths on the polarization plane, and the transmittance varies depending on the wavelength on the plane orthogonal to the polarization plane.
- the relative angle of the polarization plane is set to 90 °, the transmitted light becomes green and the green portion of the observation object can be seen as it is.
- the transmittance of the transmitted light in this part decreases and the brightness decreases.
- the red-green weak person can distinguish the red portion and the green portion of the observation object by the difference in brightness.
- the red portion and the green portion of the observation object have been described, but the present invention is not limited to this. That is, when the color of each part of the observation object is separated into the three primary colors of light, the transmitted light of the part containing the green or blue component in the former example, the transmitted light of the part having the red or blue component in the latter example Since the transmittance of the light is reduced, the respective parts can be identified by the difference in brightness.
- the hue or saturation of transmitted light changes due to the rotation of the polarization plane, and the specific change pattern may be appropriately set according to the specific use of the optical filter.
- the change in a * in the CIE 1976 (L *, a *, b *) color space is large, It is preferable that the change of b * is small. This is because the change of a * is effective for distinguishing between red and green.
- the degree of change of a * is preferably 20 or more, and the degree of change of b * is preferably smaller than the degree of change of a *.
- the change in transmittance due to the rotation of the polarization plane is large.
- the transmittance of linearly polarized light in the maximum transmittance direction at the minimum transmittance wavelength in non-polarized light is k1
- the straight line in the direction orthogonal to the maximum transmittance direction in the minimum transmittance wavelength in non-polarized light is expressed as k2
- the smaller the value of k2 / k1 the greater the change in transmittance due to the rotation of the polarization plane.
- the value of k2 / k1 is preferably 0.9 or less, more preferably 0.8 or less.
- the polarizer in the present invention may use the color based on the dichroic dye as it is, but may use another color filter for shifting to other color ranges.
- a dichroic dye can also be used for this color filter.
- the polarization plane is relatively rotated by rotating at least one polarizer itself.
- a cylindrical frame 10 as shown in FIGS. 1 and 2 is used as a configuration for rotating the polarizer itself.
- a groove 11 for fixing the fixed polarizing plate 20 and a groove 12 for supporting the rotating polarizing plate 30 are formed on the inner surface of the frame 10.
- a slit 13 penetrating from the inside to the outside is formed in a part of the groove 12.
- the fixed polarizing plate 20 has a disk shape as shown in FIG. As shown in FIG. 5, the rotating polarizing plate 30 is provided with a protruding portion 31 at a part of a disk shape. As shown in FIG. 3, the fixed polarizing plate 20 is fitted in the groove 11 of the frame 10, and the rotary polarizing plate 30 is fitted in the groove 12 of the frame 10. The protruding portion 31 of the rotating polarizing plate 30 protrudes outward from the slit 13. By pinching and moving the protrusion 31, the rotary polarizing plate 30 can be rotated from 0 ° to 90 °.
- the color changing optical filter having such a configuration changes the hue or saturation of transmitted light by manually rotating the rotary polarizing plate 30 itself.
- the glasses of the present invention can be obtained.
- the frame used in the embodiment in which the polarizer itself is rotated needs to have a structure that can mechanically rotate at least one polarizer.
- the groove 12 and the slit 13 of the frame 10 correspond to a structure in which the rotating polarizing plate 30 itself can be mechanically rotated.
- FIGS. 1 to 6 Since the embodiment shown in FIGS. 1 to 6 is a form used for eyeglasses, parts (bridge 40 and temple 50) for fixing to a human face are further added to the frame 10, but the present invention is not limited to this. Not. In other applications (for example, a magnifying glass), such parts are not necessary.
- the rotary polarizing plate 30 is mechanically rotated manually, but the present invention is not limited to this.
- the rotary polarizing plate 30 may be mechanically rotated by mechanical power or electrical power.
- the mode in which the polarization plane is relatively rotated by rotating at least one polarizer itself is, for example, less expensive, less fragile, and lighter than the embodiment using a liquid crystal device.
- the form rotated by manual or mechanical power has the further advantage that there is no problem of water resistance and there is no fear of running out of the battery.
- the spectacles from which the hue or saturation of the transmitted light of the whole lens changes this invention is not limited to this.
- the glasses may change the hue or saturation of the transmitted light of only a part of the lens (for example, only the upper part, only the lower part, only the central part, or only a part of the extended part).
- the transmitted light in the other portions does not change and sufficient brightness can be ensured, and the inconvenience of reduced brightness of the transmitted light can be reduced.
- the plane of polarization is relatively rotated by voltage control of a liquid crystal device interposed between a plurality of polarizers.
- a liquid crystal device as shown in FIG. 7, a laminated structure of transparent electrode 61 / alignment film 62 / nematic liquid crystal 63 / alignment film 62 / transparent electrode 61 between two polarizing films 60 ( By interposing a liquid crystal device) and applying a voltage between the two transparent electrodes 61, the plane of polarization can be relatively rotated.
- a color-changing optical filter using such a liquid crystal device is incorporated in a desired frame and is replaced with, for example, the frame 11 of the glasses shown in FIG. 6, the glasses need not be manually operated as in the embodiment described above. However, in this case, it is necessary to provide voltage application means on the frame or to be electrically connected to the voltage application means.
- a seven-layer laminated structure of polarizing film 60 / liquid crystal device (61/62/63/62/61) / polarizing film 60 is used, but the present invention is not limited to this.
- a color filter for shifting the color range may be added to the laminated structure.
- a polarizing film for controlling a color different from that of the laminated structure may be used as a color changing optical filter capable of controlling two colors, three colors,...
- a polarizing film 60 ′ for controlling other colors is used, and a liquid crystal device (61/62/63/62/61) / polarizing film 60 ′ is laminated.
- the structure may be further stacked to form a 13-layer stacked structure.
- the color changing optical filter capable of controlling three colors has a laminated structure of 19 layers. By appropriately selecting the three colors, it is possible to control the lightness in addition to an arbitrary hue and saturation.
- a mode in which the polarization plane is relatively rotated by voltage control of a liquid crystal device interposed between a plurality of polarizers uses a specific liquid crystal such as a cholesteric liquid crystal as in Patent Document 1.
- a specific liquid crystal such as a cholesteric liquid crystal as in Patent Document 1.
- the transmission wavelength changes depending on the viewing angle.
- a liquid crystal for example, nematic liquid crystal
- the transmission wavelength also varies. Since the transmission wavelength does not change and is constant, it is very useful for specific applications such as glasses.
- Grooves 11 and 12 having a width of 21 mm and a depth of 1 mm were attached to the inner surface of the frame 10 made of a cylindrical resin having an outer diameter of 53 mm, an inner diameter of 50 mm, and a height of 6 mm.
- a part of the groove 12 was further cut to open a slit 13.
- the length of the slit 13 was longer than a quarter of the circumference of the frame 10.
- a gray polarizing plate processed into a circle having a diameter of 51 mm was fitted into the groove 11 to obtain a fixed polarizing plate 20.
- a red polarizing plate having a protrusion 31 in a circular shape with a diameter of 51 mm was processed and fitted into the slit 13 and the groove 12 to obtain a rotating polarizing plate 30.
- the hue and saturation of the transmitted light actually changed.
- Example 2 A discoloration optical filter was produced in the same manner as in Example 1 except that a gray polarizing plate was used as the fixed polarizing plate 20 and a green polarizing plate was used as the rotating polarizing plate 30.
- the rotating polarizing plate 30 was rotated from 0 ° to 90 °, the hue and saturation of the transmitted light actually changed.
- Example 3 A discoloration optical filter was produced in the same manner as in Example 1 except that a gray polarizing plate was used as the fixed polarizing plate 20 and a blue polarizing plate was used as the rotating polarizing plate 30.
- the rotating polarizing plate 30 was rotated from 0 ° to 90 °, the hue and saturation of the transmitted light actually changed.
- Example 4 A color-changing optical filter was produced in the same manner as in Example 1 except that a red polarizing plate was used as the fixed polarizing plate 20 and a red polarizing plate was used as the rotating polarizing plate 30.
- Example 5 A discoloration optical filter was produced in the same manner as in Example 1 except that a red polarizing plate was used for the fixed polarizing plate 20 and a green polarizing plate was used for the rotating polarizing plate 30.
- Example 6 A color-changing optical filter was produced in the same manner as in Example 1 except that a red polarizing plate was used as the fixed polarizing plate 20 and a blue polarizing plate was used as the rotating polarizing plate 30.
- the rotating polarizing plate 30 was rotated from 0 ° to 90 °, the hue and saturation of the transmitted light actually changed.
- Example 7 A color-changing optical filter was produced in the same manner as in Example 1 except that a green polarizing plate was used as the fixed polarizing plate 20 and a green polarizing plate was used as the rotating polarizing plate 30.
- Example 8> A color-changing optical filter was produced in the same manner as in Example 1 except that a green polarizing plate was used as the fixed polarizing plate 20 and a blue polarizing plate was used as the rotating polarizing plate 30.
- Example 9 A color-changing optical filter was produced in the same manner as in Example 1 except that a blue polarizing plate was used as the fixed polarizing plate 20 and a blue polarizing plate was used as the rotating polarizing plate 30.
- a red ⁇ green 90 ° polarizing plate was prepared in the same manner as the other polarizing plates except that the red polarizer and the green polarizer were fixed and attached at a rotation angle of 90 °.
- a discoloration optical filter was produced in the same manner as in Example 1 except that a gray polarizing plate was used as the polarizing plate 30. When the rotating polarizing plate 30 was rotated from 0 ° to 45 ° and 90 ° with respect to the red polarizer, the hue and saturation of the transmitted light actually changed.
- a red ⁇ gray 30 ° polarizing plate was produced in the same manner as the other polarizing plates, except that the green polarizer and the gray polarizer were fixed and attached at a rotation angle of 30 °.
- a color-changing optical filter was produced in the same manner as in Example 1 except that a red polarizing plate was used as the rotating polarizing plate 30. When the rotating polarizing plate 30 was rotated from 0 ° to 90 ° with respect to the red polarizer, the hue and saturation of the transmitted light actually changed.
- Example 12 As shown in FIG. 6, two frames 10 are joined by a bridge 40, and a temple 50 is attached thereto to produce a glasses-type frame, and a polarizer is attached to the two frames 10 in the same manner as in Examples 1 to 11.
- the glasses of the present invention were obtained.
- the gray polarizing film is pasted as one polarizing film 60 of this nematic liquid crystal device, the red polarizing film is pasted as the other polarizing film 60, and the color changing optics using the liquid crystal device as shown in FIG. A filter was obtained.
- a voltage of 9 V was applied to the liquid crystal device, the hue and saturation of the transmitted light actually changed.
- Example 14 A color-changing optical filter using a liquid crystal device as shown in FIG. 7 was prepared in the same manner as in Example 13 except that a green polarizing film was used instead of the red polarizing film.
- Example 15 A color-changing optical filter using a liquid crystal device as shown in FIG. 7 was prepared in the same manner as in Example 13 except that a blue polarizing film was used instead of the red polarizing film.
- a voltage of 9 V was applied to the liquid crystal device, the hue and saturation of the transmitted light actually changed.
- Hue 121.0 °).
- the present invention is useful for applications in which the color changing optical filter is desired to be changed in hue or saturation.
- it is very useful for applications in which it is desired to allow the viewer to recognize that the hue or saturation of a part of a visible object changes, and in this respect, it is completely different from general liquid crystal display elements.
- a color identification tool such as glasses or a loupe for color-weak people, or for sunglasses that change hue or saturation.
- sunglasses can also be used for clip-on loupe and over sunglasses.
- the use of the color-changing optical filter of the present invention is not limited to these.
- color-changing optical filter of the present invention is useful in various applications such as reducing the color of the riverbed.
- applications as electrical / electronic devices such as optical filters for color correction in imaging devices such as cameras and video cameras and display devices such as displays, sensors and optical communication circuits that require changes in the hue or saturation of light Also useful.
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Abstract
Description
[1]二色性色素を含む2枚以上の偏光子と、該偏光子を支持するフレームとを有する変色光学フィルターであって、少なくとも1枚の偏光子へ入射する偏光面又は少なくとも1枚の偏光子から出射する偏光面を相対的に回転させることによって、光学フィルターの透過光の色相又は彩度が変化する変色光学フィルター。
[2]2枚以上の偏光子のうちの少なくとも1枚が、有彩色の偏光子である[1]記載の変色光学フィルター。
[3]少なくとも1枚の偏光子自体を回転させることによって、偏光面を相対的に回転させる[1]記載の変色光学フィルター。
[4]複数の偏光子の間に介在する液晶デバイスの電圧制御によって、偏光面を相対的に回転させる[1]記載の変色光学フィルター。
[5]色弱者用の色識別ツールである[1]記載の変色光学フィルター。
[6]偏光面を相対的に回転させることによって、透過光が白色光から赤色光又は緑色光に変化する[5]記載の変色光学フィルター。
[7]偏光子の二色性色素に基づく色彩以外の色彩範囲に移行する為のカラーフィルターを併用する[1]記載の変色光学フィルター。
[8][1]~[7]の何れか記載の変色光学フィルターを備えたメガネ。
本発明において「偏光子」とは偏光能を有する部材自体を意味し、その形状は何ら限定されない。また本発明において「偏光板」とは、光透過性を有する板状基材に偏光子を設けてなる部材を意味する。また一般に「光学フィルター」とは、フィルターに入射・透過する光の光学的性質を変化させることを目的として使用するフィルターを意味する。そして、本発明において「変色光学フィルター」とは、偏光面を相対的に回転させる機構を有し、これにより特に透過光の色相又は彩度を変化させることを目的とするデバイスを意味する。偏光子の形状は特に限定されないが、フィルム状が好ましい。フィルム状の偏光子は、例えば所望の基板に積層して偏光板として用いれば良い。偏光子の材質としては、例えばポリエステル、ポリビニルアルコール等の樹脂が挙げられる。具体的には、ポリエステルやポリビニルアルコールの延伸フィルムを好適に使用できる。ただし、延伸フィルム以外の公知の偏光子を使用しても構わない。また視力矯正用メガネ等の特定用途に使用する場合は、必要に応じて度付のレンズ状基板に偏光子を貼り付けてもよい。
本発明におけるフレームに特に制限は無く、偏光子自体又は偏光子を含む部材(例えば偏光板)を支持できる部材であれば良い。フレームの具体的な形状に関しては、偏光子自体を回転させる実施形態に用いるフレームと、液晶デバイスを用いる実施形態に用いるフレームとでは異なるので、詳細は後述する。
本実施形態においては、少なくとも1枚の偏光子自体を回転させることによって、偏光面を相対的に回転させる。例えば、偏光子自体を回転させる為の構成として、図1及び図2に示すような円柱形のフレーム10を使用する。そして図3に示すように、フレーム10の内面には、固定偏光板20を固定する為の溝11と、回転偏光板30を支持する為の溝12が形成されている。さらに溝12の一部には内側から外側に貫通したスリット13が形成されている。
本実施形態においては、複数の偏光子の間に介在する液晶デバイスの電圧制御によって、偏光面を相対的に回転させる。例えば、液晶デバイスを用いた構成として、図7に示すように、2枚の偏光フィルム60の間に、透明電極61/配向膜62/ネマティック液晶63/配向膜62/透明電極61の積層構造(液晶デバイス)を介在させ、この2枚の透明電極61の間に電圧を印加することによって、偏光面を相対的に回転させることができる。
光学フィルターの透過光の色彩の測定には、日本電色工業株式会社製の分光式色彩計SE-2000を使用した。光源はD65/10とし、色彩の測定結果はCIE 1976 (L*, a*, b*) 色空間で表した。L*は明度、a*は赤色、b*は黄色を表す。彩度C*及び色相∠H°は以下の式で算出した。ただし、∠H°の値に関してはa*>0かつb*<0のときは360°を加え、a*<0のときには180°を加えて、∠H°が0°から360°の範囲になるようにした。
まず偏光子として以下の市販の着色偏光フィルム(販売:株式会社松謙)を用意した。
グレーの偏光子(L*=70.8、a*=-2.6、b*=3.4、C*=4.3、色相=128°)
赤の偏光子(L*=78.7、a*=26.7、b*=4.3、C*=27.1、色相=9°)
緑の偏光子(L*=76.7、a*=-19.7、b*=8.7、C*=21.6、色相=156°)
青の偏光子(L*=79.4、a*=-8.1、b*=-16.0、C*=18.0、色相=243°)
そして、各々の偏光フィルムを無色透明の基材(厚さ2mmのアクリル板)に貼り、各色の偏光板を得た。
固定偏光板20にグレーの偏光板、回転偏光板30に赤の偏光板を用いて、図1~5に示す変色光学フィルターを以下の通り作製した。
固定偏光板20にグレーの偏光板、回転偏光板30に緑の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を0°から90°に回転させたところ、透過光の色相及び彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は彩度が低く白色光であった(L*=62.3、a*=-7.8、b*=7.7、C*=10.9、色相=136°)。回転偏光板30の回転角が90°のときの透過光は緑色であり、赤色や青色成分を有する色彩は明度が低下した(L*=33.9、a*=-49.7、b*=14.6、C*=51.8、色相=164°)。
固定偏光板20にグレーの偏光板、回転偏光板30に青の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を0°から90°に回転させたところ、透過光の色相及び彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は彩度が低く白色光であった(L*=63.4、a*=-3.6、b*=3.1、C*=4.8、色相=139°)。回転偏光板30の回転角が90°のときの透過光は青色であり、赤色や緑色成分を有する色彩は明度が低下した(L*=37.7、a*=-19.5、b*=-27.3、C*=33.6、色相=234°)。
固定偏光板20に赤の偏光板、回転偏光板30に赤の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を0°から90°に回転させたところ、透過光の彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は赤色であった(L*=72.4、a*=25.8、b*=8.2、C*=27.1、色相=18°)。回転偏光板30の回転角が90°のときの透過光は赤色であるが、緑色や青色成分を有する色彩は明度が低下した(L*=52.7、a*=69.5、b*=16.9、C*=71.5、色相=14°)。
固定偏光板20に赤の偏光板、回転偏光板30に緑の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を0°から90°に回転させたところ、透過光の色相及び彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は彩度が低く白色光であった(L*=63.0、a*=0.8、b*=5.7、C*=5.8、色相=82°)。回転偏光板30の回転角が90°のときの透過光はオレンジ色であり、緑色や青色成分を有する色彩は明度が低下した(L*=48.6、a*=13.8、b*=17.2、C*=22.1、色相=51°)。
固定偏光板20に赤の偏光板、回転偏光板30に青の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を0°から90°に回転させたところ、透過光の色相及び彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は彩度が低く白色光であった(L*=66.0、a*=5.5、b*=-4.1、C*=6.9、色相=323°)。回転偏光板30の回転角が90°のときの透過光は紫色であり、緑色成分を有する色彩は明度が低下した(L*=51.4、a*=27.7、b*=-19.2、C*=33.7、色相=325°)。
固定偏光板20に緑の偏光板、回転偏光板30に緑の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を0°から90°に回転させたところ、透過光の彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は緑色であった(L*=64.1、a*=-17.2、b*=10.5、C*=20.1、色相=149°)。回転偏光板30の回転角が90°のときの透過光は緑色であり、赤色や青色成分を有する色彩は明度が低下した(L*=47.7、a*=-64.7、b*=19.2、C*=67.5、色相=164°)。
固定偏光板20に緑の偏光板、回転偏光板30に青の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を0°から90°に回転させたところ、透過光の色相及び彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は緑色であった(L*=67.5、a*=-13.9、b*=3.8、C*=14.4、色相=165°)。回転偏光板30の回転角が90°のときの透過光は青緑色であり、赤色成分を有する色彩は明度が低下した(L*=50.7、a*=-43.3、b*=-13.7、C*=45.4、色相=198°であった)。
固定偏光板20にグレーの偏光板、回転偏光板30にグレーの偏光板を用いたこと以外は、実施例1と同様にして光学フィルターを作製した。回転偏光板30の回転角が0°のときの透過光は彩度が低く薄いグレーであった(L*=63.8、a*=-4.1、b*=6.1、C*=7.4、色相=124°)。回転偏光板30の回転角が90°のときの透過光は彩度が低く濃いグレーであり、明度は変化したが色相及び彩度は変化しなかった(L*=0.4、a*=0.1、b*=-0.7、C*=0.7、色相=277°)。
固定偏光板20に青の偏光板、回転偏光板30に青の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を0°から90°に回転させたところ、透過光の彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は青色であった(L*=69.6、a*=-4.9、b*=-15.9、C*=16.6、色相=253°)。回転偏光板30の回転角が90°のときの透過光は青色であるが、赤色や緑色成分を有する色彩は明度が低下した(L*=53.9、a*=-22.1、b*=-39.5、C*=45.2、色相=241°)。
赤の偏光子と緑の偏光子を回転角90°で固定して貼り付けたこと以外は他の偏光板と同様にして赤×緑90°の偏光板を作製した。固定偏光板20にこの赤×緑90°の偏光板(L*=49.9、a*=16.6、b*=17.6、C*=24.2、色相=47°)、回転偏光板30にグレーの偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を赤色偏光子に対して0°から、45°、90°に回転させたところ、透過光の色相及び彩度が実際に変化した。具体的には、回転偏光板30の回転角が0°のときの透過光は緑色であり、赤色や青色成分を有する色彩は明度が低下した(L*=31.8、a*=-46.9、b*=13.8、C*=48.8、色相=164°)。回転偏光板30の回転角が45°のときの透過光は彩度が低くグレーであった(L*=30.6、a*=-0.2、b*=9.6C*=9.6、色相=91°)。回転偏光板30の回転角が90°のときの透過光は赤色であり、緑色や青色成分を有する色彩は明度が低下した(L*=32.5、a*=47.5、b*=13.8、C*=49.5、色相=16°)。
緑の偏光子とグレーの偏光子を回転角30°で固定して貼り付けたこと以外は他の偏光板と同様にして赤×グレー30°の偏光板を作製した。固定偏光板20にこの緑×グレー30°の偏光板(L*=58.3、a*=-10.5、b*=7.6、C*=12.9、色相=144°)、回転偏光板30に赤の偏光板を用いたこと以外は、実施例1と同様にして変色光学フィルターを作製した。その回転偏光板30を赤色偏光子に対して0°から90°に回転させたところ、透過光の色相及び彩度が実際に変化した。具体的には、回転角が0°のときの透過光は緑色であった(L*=54.9、a*=-5.6、b*=7.5、C*=9.4、色相=127°)。回転偏光板30の回転角が90°のときの透過光は赤色であり、緑色や青色成分を有する色彩は明度が低下した(L*=28.8、a*=44.3、b*=13.5、C*=46.4、色相=17°)。
図6に示すように、2つのフレーム10をブリッジ40で接合し、これにテンプル50を付けてメガネ型フレームを作製し、この2つのフレーム10に実施例1~11と同様にして偏光子をはめ込み、本発明のメガネを得た。
図7に示す偏光フィルム60として以下の市販の着色偏光フィルム(販売:株式会社松謙)を用意した。
グレーの偏光フィルム(L*=70.8、a*=-2.6、b*=3.4、C*=4.3、色相=128°)
赤の偏光フィルム(L*=78.7、a*=26.7、b*=4.3、C*=27.1、色相=9°)
緑の偏光フィルム(L*=76.7、a*=-19.7、b*=8.7、C*=21.6、色相=156°)
青の偏光フィルム(L*=79.4、a*=-8.1、b*=-16.0、C*=18.0、色相=243°)
赤の偏光フィルムの代わりに緑の偏光フィルムを用いたこと以外は、実施例13と同様にして図7に示すような液晶デバイスを用いた変色光学フィルターを作製した。液晶デバイスに9Vの電圧を印加したところ、透過光の色相及び彩度が実際に変化した。具体的には、電圧印加前の透過光は彩度が低く白色光であった(L*=65.2、a*=-8.2、b*=12.4、C*=14.8、色相=123.6°)。9Vの電圧印加中の透過光は緑色であり、赤色や青色成分を有する色彩は明度が低下した(L*=49.6、a*=-22.4、b*=13.2、C*=26.0、色相=149.5°)。
赤の偏光フィルムの代わりに青の偏光フィルムを用いたこと以外は、実施例13と同様にして図7に示すような液晶デバイスを用いた変色光学フィルターを作製した。液晶デバイスに9Vの電圧を印加したところ、透過光の色相及び彩度が実際に変化した。具体的には、電圧印加前の透過光は彩度が低く白色光であった(L*=66.4、a*=-4.6、b*=7.6、C*=8.9、色相=121.0°)。9Vの電圧印加中の透過光は青色であり、赤色や緑色成分を有する色彩は明度が低下した(L*=40.0、a*=-20.7、b*=-25.2、C*=32.6、色相=230.4°)。
11 溝
12 溝
13 スリット
20 固定偏光板
30 回転偏光板
31 突出部
40 ブリッジ
50 テンプル
60 偏光フィルム
61 透明電極
62 配向膜
63 ネマティック液晶
Claims (8)
- 二色性色素を含む2枚以上の偏光子と、該偏光子を支持するフレームとを有する変色光学フィルターであって、少なくとも1枚の偏光子へ入射する偏光面又は少なくとも1枚の偏光子から出射する偏光面を相対的に回転させることによって、光学フィルターの透過光の色相又は彩度が変化する変色光学フィルター。
- 2枚以上の偏光子のうちの少なくとも1枚が、有彩色の偏光子である請求項1記載の変色光学フィルター。
- 少なくとも1枚の偏光子自体を回転させることによって、偏光面を相対的に回転させる請求項1記載の変色光学フィルター。
- 複数の偏光子の間に介在する液晶デバイスの電圧制御によって、偏光面を相対的に回転させる請求項1記載の変色光学フィルター。
- 色弱者用の色識別ツールである請求項1記載の変色光学フィルター。
- 偏光面を相対的に回転させることによって、透過光が白色光から赤色光又は緑色光に変化する請求項5記載の変色光学フィルター。
- 偏光子の二色性色素に基づく色彩以外の色彩範囲に移行する為のカラーフィルターを併用する請求項1記載の変色光学フィルター。
- 請求項1~7の何れか一項記載の変色光学フィルターを備えたメガネ。
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Cited By (6)
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JP2018091900A (ja) * | 2016-11-30 | 2018-06-14 | ネオ・ダルトン株式会社 | 色覚補正フィルタセット、及び色覚補正方法 |
JP2018205466A (ja) * | 2017-06-01 | 2018-12-27 | 有限会社イノン | カメラ用フィルターユニット |
JP2022048287A (ja) * | 2017-06-01 | 2022-03-25 | 有限会社イノン | カメラ用フィルターユニット |
WO2022071060A1 (ja) * | 2020-09-29 | 2022-04-07 | 日東電工株式会社 | 加飾フィルムおよび光学デバイス |
EP4300143A1 (en) | 2022-06-27 | 2024-01-03 | Essilor International | Polarized lens with color enhancing properties |
WO2024002916A1 (en) | 2022-06-27 | 2024-01-04 | Essilor International | Polarized lens with color enhancing properties |
Also Published As
Publication number | Publication date |
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EP3258307B1 (en) | 2023-06-07 |
TW201632954A (zh) | 2016-09-16 |
US20180017780A1 (en) | 2018-01-18 |
EP3258307A4 (en) | 2018-12-12 |
TWI668489B (zh) | 2019-08-11 |
CN107209401A (zh) | 2017-09-26 |
CN107209401B (zh) | 2020-04-21 |
JPWO2016125694A1 (ja) | 2017-09-21 |
JP6453364B2 (ja) | 2019-01-16 |
US10429635B2 (en) | 2019-10-01 |
EP3258307A1 (en) | 2017-12-20 |
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