JP5967795B2 - Optical products and glasses - Google Patents

Description

  The present invention relates to an optical product such as a spectacle lens, or spectacles using the optical product.

  In golf sunglasses, which is an example of eyeglasses, a color lens colored brown is widely used from the viewpoint of improving the contrast of green grass in addition to light shielding properties. In such a brown lens, the light on the short wavelength side in the visible region is cut by the coloring, and a high light shielding property is obtained. Further, due to the coloring, the transmittance gradually increases from the short wavelength region to the intermediate wavelength region, and the green lawn contrast is enhanced. In addition, it can also be set as the external appearance excellent in the aesthetics which a user can accept by coloring of brown.

  However, in a brown lens, the entire field of vision, not just the turf eyes, appears reddish due to the coloring. In addition, the sharpness is suppressed in exchange for the improvement of the green contrast.

  In view of this, it is conceivable to combine or improve the shading and the visibility of the turf and the visibility of the entire field of view or the vividness of the turf by combining polarized light with coloring. Conventionally, an optical laminated molded article described in Patent Document 1 is known as a combination of coloring and polarized light.

JP 2008-276150 A

  However, Patent Document 1 discloses only obtaining a lens having a predetermined color with a specific total light transmittance by coloring a polarizing sheet by color printing with a transparent ink and molding the lens using the sheet. However, it is not disclosed how the combination of coloring and polarization can achieve both the light shielding property and the visibility of the grass or the overall visibility.

  Also, by combining coloring and polarized light, it is possible to achieve and improve both the visibility of the turf and the entire surface (golf lens), and to improve the compatibility of both the snow surface and the overall visibility (winter lens). ), Improving the performance of other optical products, such as improving and improving the visibility of the LCD monitor screen and other parts (monitor lens). Of course, it is not disclosed.

  Accordingly, the inventions described in claims 1 to 6 and 7 are intended to provide an optical product capable of achieving and improving both the predetermined location and the overall visibility, or spectacles using the optical product. .

In order to achieve the above object, the invention according to claim 1 is an optical product, comprising : a polarizing substrate that filters S-polarized light in a predetermined spectral transmittance distribution in a visible region (wavelength of 400 nm to 800 nm) . On the other hand, coloring is applied so that the maximum value of the distribution and the average maximum value of the spectral transmittance distribution in the visible region with respect to P-polarized light and S-polarized light belong to different wavelengths or different wavelength ranges. It is characterized by this.

The invention according to claim 2 is the above-mentioned invention, wherein the maximum value of the spectral transmittance distribution relating to S-polarized light is in the wavelength range of 400 nm or more and less than 550 nm, and the spectrum in the visible region with respect to P-polarized light and S-polarized light. The maximum value related to the average of the transmittance distribution is in the wavelength range of 550 nm to 800 nm .

The invention according to claim 3 is the above-mentioned invention, wherein the maximum value of the spectral transmittance distribution relating to the S-polarized light is in the wavelength range of 450 nm or more and less than 550 nm, and the spectral in the visible region with respect to the P-polarized light and the S-polarized light. The maximum value related to the average of the transmittance distribution is in the wavelength range of 650 nm or more and less than 700 nm.

The invention according to claim 4 is the above-mentioned invention, wherein the maximum value of the spectral transmittance distribution relating to the S-polarized light is in the wavelength range of 400 nm or more and less than 500 nm, and the spectral in the visible region with respect to the P-polarized light and the S-polarized light. The minimum value related to the average of the transmittance distribution is in the wavelength range of 400 nm or more and less than 450 nm.

According to a fifth aspect of the present invention, in the above invention, the minimum value of the spectral transmittance distribution relating to the S-polarized light is in a wavelength range of 600 nm or more and less than 700 nm, and the spectral in the visible region with respect to the P-polarized light and the S-polarized light. The maximum value relating to the average of the transmittance distribution is in the wavelength range of 500 nm or more and less than 550 nm.

According to a sixth aspect of the present invention, in order to achieve the above object, the present invention is provided in eyeglasses, which is produced using the above optical product.

  According to the present invention, the polarization substrate has the maximum value of the spectral transmittance distribution in the visible region with respect to the S-polarized light and the average maximum value of the spectral transmittance distribution in the visible region with respect to the P-polarized light and the S-polarized light. Since it is colored so as to belong to different wavelengths, or the polarizing substrate is colored so that the color tone of transmitted light in S-polarized light is different from the color tone of transmitted light in S-polarized light and P-polarized light, a predetermined location ( The visibility of the generation source of S-polarized light) and the whole (the generation source of light including both S-polarized light and P-polarized light, other than the predetermined location) can be both improved and improved.

It is a graph which shows the spectral transmittance distribution of Example 1 and the conventional golf sunglasses. 6 is a schematic diagram of an imaging scene for analysis in Example 1 and Comparative Example 1. FIG. It is a graph which shows the spectral reflectance distribution of a green leaf and a dead leaf. It is a schematic diagram of the imaging scene for analysis of Example 3 and Comparative Example 3.

  Hereinafter, examples of embodiments according to the present invention will be described. In addition, the form of this invention is not limited to the following.

  In the optical product according to the present invention, the polarizing substrate is colored. The polarizing substrate has translucency and mainly has a function of a polarizing filter that filters S-polarized light whose electric field vibrates perpendicularly to the incident light surface. The function of the polarizing filter may be imparted by forming all or part of the polarizing substrate with a polymer as an absorbing polarizer, a birefringent crystal, or the like, but preferably reflects polarized light in a predetermined direction. Or it provides by including the polarizing film to cut in a polarizing substrate.

  As a specific example, a polarizing base material includes a front lens base material, a back lens base material, and a polarizing film, and a polarizing film is disposed between the front lens base material and the back lens base material and fixed to each other. be able to. Note that a plurality of polarizing films may be provided, and at this time, different filtering may be performed, or they may be overlapped or arranged at different positions. Further, the polarizing base material may include one lens base material and a polarizing film, and the polarizing film may be disposed on the front side and / or the back side of the lens base material. Furthermore, the polarizing film may extend over the entire surface of the polarizing substrate, or may cover a part thereof. Furthermore, the filtering characteristics may be different between a part and another part of the polarizing film. In addition, a polarizing block having a polarizing film in a block shape may be employed.

  Polarization filtering by the polarizing substrate is, for example, green, yellow, or blue. In the filtering of green-based polarized light, the polarization transmittance (average) of the intermediate region (for example, 400 to 500 nm) in the visible region (for example, the wavelength region of 400 to 800 nanometers (nm) or 400 to 780 nm) is the other region. In other words, the polarization transmittance (average) in the wavelength range recognized as green is higher than the other ranges. Note that, for example, the polarization transmittance (average) may be high in the region of 600 to 700 nm, but this wavelength range has no problem as compared with the intermediate region because the visibility is relatively low. On the other hand, in the filtering of yellow-based polarized light, the polarization transmittance in the short wavelength region (for example, 400 to 500 nm) in the visible region (average) is lower than the other regions, in other words, polarized light transmission recognized as yellow. It is a rate distribution. On the other hand, filtering of blue polarized light has a higher polarization transmittance (average) in a short wavelength region (for example, 400 to 500 nm) in the visible region than other regions, in other words, a wavelength region recognized as blue. The polarization transmittance (average) is higher than that of other regions.

  Further, the coloring of the polarizing substrate is, for example, a brown system or a green system as a whole (considering filtering of S-polarized light). The brown coloration is, for example, the transmittance (average) of the short wavelength region and the long wavelength region (for example, 700 to 800 nm) in the visible region is lower than the other regions, and the intermediate region (the longer wavelength side than the green system, for example, 500 The transmittance (average of -700 nm) is generally high. Alternatively, as another brown coloration, the transmittance (average) in the short wavelength region in the visible region is lower than the other regions, and the transmittance (average) in other regions than the short wavelength region is generally high. It is done. In addition, the coloring to a polarizing base material can be determined in consideration with a polarizing film. That is, in consideration of the fact that S-polarized light attenuated by the polarizing substrate and S-polarized light and P-polarized light attenuated by coloring pass through the colored polarizing substrate, the color in coloring The type of can be determined. For example, in the case of adopting a blue polarizing film, when the entire system is green, yellow coloring is combined.

  The coloring of the polarizing substrate is preferably performed by dyeing the lens substrate when the polarizing substrate includes a lens substrate and a polarizing film. When the lens substrate is divided into the front and back sides, either one may be colored, or both may be colored. When coloring both, the coloring method and the spectral transmittance distribution may be different from each other. Further, the polarizing filter (polarizing film) itself may be colored, and in this case, it may be combined with a transparent lens substrate or a colored lens substrate.

  And by such a combination of polarization and coloring, the spectral transmittance distribution of S-polarized light and the average of spectral transmittance distributions of S-polarized light and P-polarized light in the optical product of the present invention are different from each other. . Therefore, the maximum value of the transmittance of S-polarized light and the maximum value of the average transmittance of S-polarized light and P-polarized light belong to mutually different wavelengths, or the maximum value range of the transmittance of S-polarized light and The maximum value range of the average transmittance of S-polarized light and P-polarized light belongs to different wavelength ranges. Further, in the case of different wavelength ranges, the maximum value of the transmittance of S-polarized light takes a constant value within a predetermined range, and the maximum value of the average transmittance of S-polarized light and P-polarized light is a specific range. When taking another or the same constant value, the case where the wavelength at the start and / or end of the predetermined range is different from the wavelength at the start and / or end of the specific range is included. Furthermore, to belong to different wavelengths or different wavelength ranges, only one of the maximum value of the transmittance of S-polarized light or the maximum value of the average transmittance of S-polarized light and P-polarized light is constant within a certain range. Includes taking a value.

  Specifically, almost all of the natural reflected light reflected from natural objects such as turf, snow, and trees (including processed natural products such as paper and resin) and light from the liquid crystal monitor are S-polarized light. When incident on the optical product of the present invention, the polarization transmittance distribution by the polarizing base material mainly filtering S-polarized light is strongly followed, and only the transmitted light is further affected by the transmittance distribution due to coloring.

  On the other hand, light other than naturally reflected light including direct light directly incident on the optical product of the present invention is light including both S-polarized light and P-polarized light, and enters the optical product of the present invention. , S-polarized light follows the polarization transmittance distribution (and the transmittance distribution due to coloring after the transmission), but P-polarized light follows the transmittance distribution due to coloring without following the polarization transmittance distribution. In other light, S-polarized light and P-polarized light are combined, and thus the transmittance distribution due to coloring is more strongly followed than in the case of S-polarized light alone.

  In the present invention, since the color tone is shifted between the transmitted light of the polarizing filter and the transmitted light of the polarizing filter and the colored light (for example, the brown system for the green system, the brown system for the yellow system, the green system for the blue system), The spectral transmittance distribution of S-polarized light and the spectral transmittance distribution of S-polarized light and P-polarized light are different from each other, the maximum value of the transmittance of S-polarized light, and the transmittance of S-polarized light and P-polarized light. Are located at different wavelengths or wavelength ranges.

  As described above, when the distribution of S-polarized light transmittance (maximum value) and the distribution of the transmittance of S-polarized light and P-polarized light (maximum value) are different from each other (wavelength / wavelength range), natural reflection occurs. The transmitted light of the light or monitor light and the other transmitted light can be made different in appearance, and can be suitable for golf, winter sports, liquid crystal monitors, and the like.

  Next, several examples of the preferred embodiment of the present invention will be described. In these examples, the visible region is 400 to 780 nm.

  As an optical product according to Example 1, a golf lens was prepared in which a green polarizing film was sandwiched between front and back lens substrates of approximately the same size, which were colored together with the green polarizing film. With such a creation, the transmitted light of S-polarized light mainly due to the polarizing film and coloring action (green system) and the transmitted light combining P-polarized light and S-polarized light mainly due to the coloring action (Brown system), The tone will be different from each other.

  The polarizing film has a maximum value of transmittance with respect to S-polarized light at a wavelength within 450 to 550 nm (for example, 500 nm), and gradually decreases as the transmittance of light of other wavelengths approaches both sides of the visible region (absorbance decreases). (Sequentially higher).

  On the other hand, coloring was performed in the following steps 2-3. First, dyeing with a red dye was performed. In this dyeing, the front and back lens base materials are immersed in a dyeing solution in which a disperse dye having a characteristic that the absorption rate reaches a peak at a wavelength within a range of 500 to 550 nm and gradually decreases on both sides thereof is dispersed in a solvent. I went there.

  Next, dyeing with a yellow dye was performed. This dyeing has a peak absorption at a wavelength in the range of 350 to 400 nm, and the lens substrate on the front and back sides of the dye solution in which a disperse dye having a characteristic that gradually decreases to a wavelength in the range of 500 to 550 nm is dispersed in a solvent. It was performed by immersing each.

  Subsequently, color adjustment was performed as appropriate. The color adjustment is performed by changing the dye concentration, the immersion time, etc. in the previous two stages in various ways, and the transmittance of light having a wavelength within 400 to 450 nm is obtained in the entire lens (average of S-polarized light transmittance and P-polarized light transmittance). The measurement was performed for the purpose of obtaining a spectral transmittance characteristic that is the smallest, has a maximum value of transmittance in the vicinity of 600 nm, and gradually increases in transmittance from 650 to 700 nm (maximum value is located in a wavelength range of 650 to 700 nm).

  On the other hand, as Comparative Example 1 not belonging to the present invention, an integral brown colored lens having the same size and the same color as the golf lens but having no polarizing film was prepared.

  The spectral transmittance distribution (P-polarized light transmittance, S-polarized light transmittance, and the average of these) of Example 1 formed in this way, and the spectral transmittance of conventional general brown golf sunglasses different from Comparative Example 1 A distribution graph is shown in FIG.

  Visibility was confirmed for each of Example 1 and Comparative Example 1 as follows. That is, a landscape imitating a scene of use (golf course) was photographed with a golf lens or a colored lens fixed immediately before the lens of a digital still camera. The photographed image was analyzed with a computer (image processing software).

  Here, the camera's exposure and white balance are fixed, and other functions are turned off. The landscape is as shown in FIG. 2, and a white box X (made of paper) and a green artificial turf mat G (made of resin and natural products) are placed on the roof of the building. . The box X is arranged so that the side surface D is shaded, and the light from the side surface D is not affected by the polarization. Further, the image analysis is performed by calculating respective average values of the R value, G value, and B value of each pixel on the side surface D of the box X and the upper surface of the artificial grass mat G. Here, the R value represents the strength of the red component in the pixel of interest by an integer of 0 to 255, and the larger the value, the stronger the value, and 0 indicating no component. Similarly, the G value represents the strength of the green component, and the B value represents the strength of the blue component. When (R value, G value, B value) = (0, 0, 0), it is indicated that the pixel of interest is true black, and (R value, G value, B value) = (255, 255). 255) indicates that the pixel of interest is pure white.

  The visibility confirmation results are shown in the following [Table 1].

  In Comparative Example 1, the side face D of the shaded white box X is captured as brown rather than true gray due to the coloring of brown. That is, the G value is higher than the B value (44) (95), the R value is further higher (113), and it is recognized as a brownish gray. The grass (mat G) has a high G value (113) and is recognized as green, but is recognized as green, but the R value is relatively high (65) while the B value is suppressed (8). ), It seems to be slightly reddish, and seems to have led to the effect of contrast enhancement for green in conventional brown lenses.

  Note that the contrast enhancement effect for green is greatly different between the spectral reflectance distribution of green leaves and the spectral reflectance distribution of dead leaves (see FIG. 3) at 520 to 700 nm (the reflectance of green leaves is 0.15 at 520 to 560 nm). About 0.2 to 0.1 to 0.15 dead leaves, and about 560 to 700 nm, the reflectance of green leaves is about 0.05 to 0.3, and about 0.15 to 0.4 dead leaves, the same at 600 to 680 nm. The difference is 0.1 to 0.3 in wavelength), and it is exhibited according to the fact that it is not so different in other wavelength regions. That is, by coloring brown, the transmittance at 520 to 700 nm, where the spectral reflectance distribution differs greatly between green leaves and dead leaves, is relatively large, and the transmittance in other wavelength ranges is relatively small. (Incident light can be cut), and as a result, the contrast of the turf is enhanced.

  On the other hand, in Example 1, (R value, G value, B value) = (112, 92, 42) for the side surface D of the box X, which is (113, 95, 44) of Comparative Example 1. The situation is not so different. This includes not only the S-polarized light but also the P-polarized light that is hardly affected by the polarizing film, and the influence of the coloration so as to be brown as a whole also affects the P-polarized light. By reaching. Further, regarding the turf (mat G), although the R value increased from Comparative Example 1 (71, increased by 6 from Comparative Example 1), the G value further increased from Comparative Example 1 (121, Comparative Example 1). In addition, the B value is further increased from Comparative Example 1 (19, increased from Comparative Example 1 to 11), and green and blue are strong. This is mainly because the reflected light of the turf, which becomes S-polarized light, is strongly influenced by the green polarizing film. If the wavelength (range) to which the maximum value of polarization or coloring belongs is outside the range according to the first embodiment, the visibility with respect to the turf is not relatively good, or the appearance other than the turf is relatively natural. Not.

  Therefore, in the golf lens of Example 1, the turf is visually recognized in a greener or more bluish state than the conventional one while having the same overall visibility as the conventional brown lens (Comparative Example 1). However, both the lawn and the other visibility can be achieved in good condition.

  Golf glasses (golf sunglasses) can be formed using two golf lenses. Further, although it is used for golf according to the first embodiment, it may be used for other purposes such as hiking, outdoor sports, outdoor activities, marine sports, indoor sports, etc. for viewing green and blue natural objects.

  As an optical product according to Example 2, a ski lens was produced in which a yellow polarizing film was sandwiched between front and back lens substrates of approximately the same size, which were colored in combination with the yellow polarizing film. By such a creation, the transmitted light of the S-polarized light mainly due to the polarizing film and the coloring action (yellow series) and the transmitted light combining the P-polarized light and the S-polarized light mainly due to the coloring action (Brown series), The tone will be different from each other.

  The polarizing film has the highest absorptance for S-polarized light having a wavelength within 400 to 500 nm (for example, 400 nm) (lowest transmittance), and the absorptance of light of other wavelengths is longer wavelength side or both sides of the visible region. It has a spectral transmittance characteristic that gradually decreases (transmittance increases sequentially) as it approaches. That is, the minimum value of the transmittance in the spectral transmittance distribution for S-polarized light is located at any wavelength within 400 to 500 nm. Note that the maximum value of the transmittance in the spectral transmittance distribution for the S-polarized light of the polarizing film is, for example, 780 nm.

  On the other hand, coloring was performed in the following steps 2-3. First, dyeing with a red dye was performed. In this dyeing, the front and back lens base materials are immersed in a dyeing solution in which a disperse dye having a characteristic that the absorption rate reaches a peak at a wavelength within a range of 500 to 550 nm and gradually decreases on both sides thereof is dispersed in a solvent. I went there.

  Next, dyeing with a blue dye was performed. This dyeing has a peak absorption at a wavelength in the range of 600 to 650 nm, and the front and back lens base materials are dispersed with respect to a dyeing liquid in which a disperse dye having a characteristic that gradually decreases in both wavelength ranges. Each was carried out by immersing.

  Subsequently, color adjustment was performed as appropriate. Color adjustment is performed by changing the dye concentration and immersion time in the previous two stages in various ways, and the entire lens has the smallest transmittance for light having a wavelength within 400 to 450 nm, and the transmittance gradually increases from 650 to 700 nm. The purpose was to obtain spectral transmittance characteristics. That is, the minimum value of the transmittance in the average spectral transmittance distribution for S-polarized light and P-polarized light is located at any wavelength within 400 to 450 nm, and S-polarized light at any wavelength within 650 to 700 nm. And the maximum value of the transmittance in the average spectral transmittance distribution for the P-polarized light is located.

  On the other hand, as Comparative Example 2, an integral brown colored lens having the same size and the same color as the ski lens but having no polarizing film was prepared.

  For these Example 2 and Comparative Example 2, the visibility was confirmed in the same manner as in Example 1 and the like. Here, the scenery is the same as in Example 1, but instead of the artificial turf mat G, white paper extremely close to pure white is laid out in almost the same range. The visibility confirmation results are shown in the following [Table 2].

  In Comparative Example 2, the side face D of the shaded white box X is captured as brown rather than true gray due to the coloring of brown. That is, the G value is higher than the B value (55) (86), the R value is further higher (106), and it is recognized as a brownish gray. Moreover, although the surface of the white paper simulating snow is recognized as white with high values, the R and G values are relatively high (209, 175), and the B value is relatively low at 134. It seems to be slightly yellowish, and seems to have led to the same effects as the contrast enhancement and eye protection effects of white in conventional yellow lenses. Note that contrast enhancement and eye protection are performed by cutting the short wavelength side (blue side) to suppress blue reflection from the snow surface and suppressing the incidence of short wavelength light on the eyeball. Similarly, the transmittance on the short wavelength side is reduced.

  On the other hand, in Example 2, (R value, G value, B value) = (105, 85, 56) for the side surface D of the box X, which is (106, 86, 55) of Comparative Example 1. The situation is not so different. This includes not only the S-polarized light but also the P-polarized light that is hardly affected by the polarizing film, and the influence of the coloration so as to be brown as a whole also affects the P-polarized light. By reaching. Further, for the blank paper, the R value and G value are not different from those of Comparative Example 1 (209, 175), and the B value is greatly decreased from Comparative Example 1 (126, 8 decreased from Comparative Example 1), thereby suppressing the blueness more. Thus, the effects of contrast enhancement and eye protection can be further exhibited. This is mainly because the reflected light from the white paper surface, which is mainly S-polarized light, is strongly influenced by the yellow polarizing film. If the wavelength (range) to which the maximum value of polarization or coloring belongs is out of the range according to the second embodiment, the visibility with respect to snow is not relatively good, or the appearance other than snow is relatively natural. Not.

  Therefore, in the ski lens of Example 2, the snow surface is visually recognized in a state where the bluishness is suppressed more than the conventional one while having the same overall visibility as the conventional brown lens (Comparative Example 2). It can be said that both the snow surface and the other visibility can be achieved in good condition.

  In addition, ski sunglasses (ski glasses) can be formed using (two) ski lenses, and ski goggles (ski glasses) using one or more ski lenses. Can be formed. Further, although it is used for skiing according to the second embodiment, it may be used for other purposes such as snowboarding, snow trekking, winter sports, winter activity, sandy beach, etc. for viewing white natural objects.

  As an optical product according to Example 3, a lens for a liquid crystal monitor was prepared in which a blue polarizing film was sandwiched between front and back lens substrates of approximately the same size, which were colored together with the polarizing film. . With such a creation, transmitted light of S-polarized light mainly due to the polarizing film and coloring action (blue system) and transmitted light combining P-polarized light and S-polarized light mainly due to the coloring action (green system), The tone will be different from each other. Note that when a yellow-based coloring is combined with a blue-based polarizing film, the whole becomes a green-based film.

  The polarizing film has the highest absorptance with respect to S-polarized light having a wavelength in the range of 600 to 700 nm (for example, 650 nm) (the transmittance is the lowest), and the absorptance of light of other wavelengths is on the long wavelength side or both sides of the visible region. It has a spectral transmittance characteristic that gradually decreases (transmittance increases sequentially) as it approaches. That is, the minimum value of the transmittance in the spectral transmittance distribution for S-polarized light is located at any wavelength within 600 to 700 nm. Note that the maximum value of the transmittance in the spectral transmittance distribution for the S-polarized light is, for example, either 420 nm or 480 nm, or a combination thereof.

On the other hand, coloring was performed as follows. That is, a disperse dye having a characteristic that the absorption rate becomes a peak within 350 to 450 nm (the transmittance becomes the lowest), and the absorption rate gradually decreases (the transmittance increases) with respect to light having a wavelength of 500 to 550 nm. This was performed by immersing the front and back lens base materials in the dyeing solution dispersed in the solvent. That is, in the visible region (here, 400 to 800 nm), the minimum value of the transmittance in the average spectral transmittance distribution for P-polarized light and S-polarized light is located at any wavelength within 400 to 450 nm, and within 500 to 550 nm. At any wavelength, the maximum value of transmittance in the average spectral transmittance distribution for P-polarized light and S-polarized light is located.

  On the other hand, as Comparative Example 3, a polarizing lens having the same size as the liquid crystal monitor lens and using the same polarizing film was used as a front and back lens without coloring.

  For these Example 3 and Comparative Example 3, visibility was confirmed in the same manner as in Example 1 and the like. Here, as shown in FIG. 4, the scenery is such that the entire screen M or white casing C of the personal computer (PC) with a built-in liquid crystal monitor on the desk is large. Note that the screen M is displayed in a state in which a white plain image is arranged in a purple frame. In addition, even when no lens was attached (no lens), images were taken under the same conditions and analyzed. The results of such visibility confirmation are shown in [Table 3] below.

  About the B value of the screen M portion, both the example 3 and the comparative example 3 have the same magnitude as compared to the case without the lens, and the effect of blue polarization appears in the example 3 and the comparative example 3. Since the light from the liquid crystal monitor (screen M) is S-polarized light due to its operating principle, it is strongly influenced by the polarizing films of Example 3 and Comparative Example 3. Therefore, in Example 3 and Comparative Example 3, light from the liquid crystal monitor can be efficiently reduced (by adjusting in the axial direction).

  On the other hand, regarding the PC housing C, the B value is larger in the comparative example 3 than in the case without the lens, but the R value and the G value are unchanged between the case without the lens and the comparative example 3. Therefore, in Comparative Example 3, the white color including not only S-polarized light but also P-polarized light looks bluish. On the other hand, in Example 3, all of the B value, the R value, and the G value are larger by the same degree than those without the lens. Therefore, in Example 3, there is little change in the color appearance of white color including P-polarized light, and the color tone of portions other than the screen becomes natural. It should be noted that if the wavelength (range) to which the maximum value of polarization or coloring belongs is outside the range according to the third embodiment, the monitor light is not sufficiently dimmed, or the view other than the monitor is relatively invisible. It is not natural.

  Therefore, in the liquid crystal monitor lens of Example 3, while the monitor light dimming effect equivalent to that of the conventional PC lens (Comparative Example 3) is obtained, the surrounding state is changed by the change in hue compared with the conventional lens. Although it can be visually recognized in a small state, both the screen and the other visibility can be compatible in a good state.

  Note that liquid crystal monitor sunglasses (liquid crystal monitor glasses) can be formed using two liquid crystal monitor lenses. Further, although the liquid crystal monitor is used in the third embodiment, it may be used for other monitors that mainly emit S-polarized light.

C (PC) housing (viewing the surroundings)
G (artificial turf) mat (visual recognition of a predetermined location)
M screen (visual recognition of a predetermined location)
X box (view around)

Claims (6)

For a polarizing substrate that filters S-polarized light in a predetermined spectral transmittance distribution in the visible region (wavelength 400 nm or more and 800 nm or less) ,
Coloring is performed so that the maximum value of the distribution and the average maximum value of the spectral transmittance distribution in the visible region with respect to P-polarized light and S-polarized light belong to different wavelengths or different wavelength ranges. Features optical products. The maximum value of the spectral transmittance distribution related to the S-polarized light is in the wavelength range of 400 nm to less than 550 nm, and the maximum value related to the average of the spectral transmittance distribution in the visible region with respect to the P-polarized light and the S-polarized light is 550 nm to 800 nm. The optical product according to claim 1, wherein the optical product is within the following wavelength range. The maximum value of the spectral transmittance distribution related to the S-polarized light is in the wavelength range of 450 nm to less than 550 nm, and the maximum value related to the average of the spectral transmittance distribution in the visible region with respect to the P-polarized light and the S-polarized light is 650 nm to 700 nm. The optical product according to claim 1, wherein the optical product is in a range of less than a wavelength. The maximum value of the spectral transmittance distribution related to S-polarized light is in the wavelength range of 400 nm to less than 500 nm, and the minimum value related to the average of the spectral transmittance distribution in the visible region for P-polarized light and S-polarized light is 400 nm to 450 nm. The optical product according to claim 1, wherein the optical product is in a range of less than a wavelength. The minimum value of the spectral transmittance distribution related to the S-polarized light is in the wavelength range of 600 nm to less than 700 nm, and the maximum value related to the average of the spectral transmittance distribution in the visible region with respect to the P-polarized light and S-polarized light is 500 nm to 550 nm. The optical product according to claim 1, wherein the optical product is in a range of less than a wavelength. 6. Eyeglasses produced using the optical product according to any one of claims 1 to 5 .

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