Filter member, optical component, and game system

Abstract

To expand the color gamut of a display.SOLUTION: A filter member includes one or more types of absorbing pigments. The absorption spectra of the one or more types of absorbing pigments include an absorption peak located in a first wavelength band of 450 nm or more and 510 nm or less, an absorption peak located in a second wavelength band of 540 nm or more and 600 nm or less, and an absorption peak located in a third wavelength band of 650 nm or more and 780 nm or less. The highest transmittance of a filter member in a wavelength band of 380 nm or more and 445 nm or less is 1.1 times or more the lowest transmittance of the filter member in the first wavelength band. The highest transmittance of the filter member in a wavelength band of 500 nm or more and 540 nm or less is four times or more the lowest transmittance of the filter member in the second wavelength band. The highest transmittance of the filter member in a wavelength band of 580 nm or more and 700 nm or less is twice or more the lowest transmittance of the filter member in the third wavelength band.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a filter member, an optical component, and a game system. [Background technology]

[0002] Patent Document 1 discloses an anti-glare optical element having three valley minima in its transmittance curve, including a first valley minimum located between 450 and 500 nm, a second valley minimum located between 550 and 630 nm, and a third valley minimum located between 650 and 700 nm. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-11840 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a filter member or the like that can widen the color gamut of a display. [Means for solving the problem]

[0005] A filter member according to one aspect of the present invention includes a substrate and one or more types of absorption dyes dispersed in the substrate. The absorption spectrum of the one or more types of absorption dyes has an absorption peak whose peak wavelength is located in a first wavelength band of 450 nm to 510 nm, a second absorption peak whose peak wavelength is located in a second wavelength band of 540 nm to 600 nm, and a third absorption peak whose peak wavelength is located in a third wavelength band of 650 nm to 780 nm. The highest transmittance of the filter member in a fourth wavelength band of 380 nm to 445 nm is at least 1.1 times the lowest transmittance of the filter member in the first wavelength band. The highest transmittance of the filter member in a fifth wavelength band of 500 nm to 540 nm is at least four times the lowest transmittance of the filter member in the second wavelength band. The highest transmittance of the filter member in a sixth wavelength band of 580 nm or more and 700 nm or less is at least twice the lowest transmittance of the filter member in the third wavelength band.

[0006] An optical component according to one aspect of the present invention includes the filter member according to the above aspect.

[0007] A game system according to one aspect of the present invention includes the optical component according to the above aspect and a display device that displays game images. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a filter member or the like that can widen the color gamut of a display. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is an external perspective view showing an example of a filter member and an optical component according to an embodiment. [Figure 2] FIG. 2 is a diagram showing transmittance characteristics of the filter member according to the first embodiment. [Figure 3] FIG. 3 is a diagram showing the absorption characteristics of the absorbing dye contained in the filter member according to Example 1. In FIG. [Figure 4]FIG. 4 is a diagram showing the transmittance characteristics of the filter member according to the second embodiment. [Figure 5] FIG. 5 is a diagram showing the absorption characteristics of the absorbing dye contained in the filter member according to Example 2. In FIG. [Figure 6] FIG. 6 is a diagram showing the configuration of a game system according to an embodiment. [Figure 7] FIG. 7 is a diagram showing an emission spectrum of the display of the game system according to the embodiment. [Figure 8] FIG. 8 is a diagram showing an emission spectrum of the display of the game system according to the embodiment when the filter member according to Example 1 is used. [Figure 9] FIG. 9 is a diagram showing an emission spectrum of the display of the game system according to the embodiment when the filter member according to Example 2 is used. [Figure 10] FIG. 10 is a diagram showing the color gamut of the display of the game system according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Below, a filter member, an optical component, and a game system according to embodiments of the present invention will be described in detail with reference to the drawings. Note that each of the embodiments described below represents a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangements and connection forms, steps, and step orders shown in the following embodiments are merely examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, components not recited in independent claims will be described as optional components.

[0011] Furthermore, each figure is a schematic diagram and is not necessarily an exact illustration. Therefore, for example, the scales of the figures do not necessarily match. Furthermore, in each figure, substantially the same components are given the same reference numerals, and redundant explanations are omitted or simplified.

[0012] Furthermore, in this specification, terms indicating the relationship between elements, terms indicating the shape of elements, and numerical ranges are not expressions that express only strict meanings, but are expressions that mean that they also include a substantially equivalent range, for example, a difference of about a few percent.

[0013] Furthermore, in this specification, ordinal numbers such as "first" and "second" do not refer to the number or order of components unless otherwise specified, but are used for the purpose of avoiding confusion and distinguishing between components of the same type.

[0014] (Embodiment) [composition] First, the configuration of the filter member and optical components according to this embodiment will be described with reference to FIG.

[0015] FIG. 1 is an external perspective view showing an example of a filter member 10 and an optical component 1 according to the present embodiment. As shown in FIG. 1, the optical component 1 includes a filter member 10. The optical component 1 is, for example, glasses. The glasses may not be glasses for vision correction, but may be sunglasses or glasses dedicated to a game system described below. The optical component 1 includes two filter members 10 as lenses for the left and right eyes. Note that the filter members 10 do not necessarily have lens functions such as focusing and divergence.

[0016] The filter member 10 includes a substrate 11 and one or more types of absorbing dyes 12 dispersed in the substrate 11 .

[0017] The substrate 11 is a light-transmitting plate-like member. The substrate 11 is, for example, a resin substrate formed by molding a transparent resin material into a predetermined shape. Specifically, the substrate 11 contains polycarbonate resin or acrylic resin as a main component. Note that "containing as a main component" means that the proportion (mass %) of the mass of the polycarbonate resin or acrylic resin relative to the total mass of the substrate 11 exceeds 50%. In this embodiment, the substrate 11 is substantially composed of polycarbonate resin or acrylic resin. The resin material used to form the substrate 11 may be an epoxy resin, a urethane resin, polysilazane, siloxane, allyl diglycol carbonate (CR-39), or a polysiloxane composite acrylic resin.

[0018] The thickness of the substrate 11 is, for example, 1 mm or more and 3 mm or less. The substrate 11 may be a flat plate or a curved plate having a convex or concave surface. For example, the substrate 11 may have a shape that realizes a lens function that focuses or diffuses light, such as a convex or concave lens. In other words, the thickness of the substrate 11 does not need to be uniform within the plane, and may vary depending on the location. The size and shape of the substrate 11 are, for example, a size and shape that are suitable for eyeglasses that can be worn by a person.

[0019] The absorbing dye 12 is a dye material that selectively absorbs light in a predetermined wavelength band. Specific examples of the absorption spectrum of the absorbing dye 12 will be described later.

[0020] The absorbing dye 12 is, for example, uniformly dispersed inside the substrate 11. Specifically, the absorbing dye 12 is uniformly dispersed throughout the substrate 11 in the thickness direction and the surface direction. The absorbing dye 12 may be dispersed only in a partial region inside the substrate 11. For example, when the main surface of the substrate 11 is viewed from the front, the absorbing dye 12 may be dispersed only in the central region of the substrate 11. Alternatively, the absorbing dye 12 may be dispersed only in the surface layer portion of one surface of the substrate 11 in the thickness direction.

[0021] The absorbing dye 12 may be, for example, a porphyrin dye, a phthalocyanine dye, a merocyanine dye, or a methine dye. For example, the absorbing dye 12 may be a porphyrin dye whose central metal is a metal element selected from the group consisting of Cu, Ni, Co, and Pd and whose substituent is a substituent selected from the group consisting of ethoxy, fluorobenzo, and fluoroethoxy. The absorption spectrum of the absorbing dye 12 can be varied by adjusting at least one of the materials of the central metal and the substituent of the porphyrin dye.

[0022] In this embodiment, the filter member 10 contains multiple types of absorbing dyes 12. By adjusting the type, number, content, and mixing ratio of the absorbing dyes 12, the optical characteristics (transmission spectrum) of the filter member 10 can be adjusted.

[0023] [Transmission spectrum] Next, a description will be given of the transmission spectrum of the filter member 10 according to this embodiment. In the transmission spectrum of the filter member 10, there is a predetermined relationship between the maximum and minimum values ​​of transmittance for each wavelength band.

[0024] The wavelength band of 450 nm or more and 510 nm or less is defined as the first wavelength band W1. That is, the first wavelength band W1 is a wavelength range that mainly includes the range between the blue component (B) and the green component (G). The lowest transmittance of the filter member 10 within the first wavelength band W1 is defined as the minimum value MIN1.

[0025] The wavelength band of 540 nm or more and 600 nm or less is defined as the second wavelength band W2. That is, the second wavelength band W2 is a wavelength range that mainly includes the range between the green component (G) and the red component (R). The lowest transmittance of the filter member 10 within the second wavelength band W2 is defined as the minimum value MIN2.

[0026] The wavelength band of 650 nm or more and 780 nm or less is defined as a third wavelength band W3. That is, the third wavelength band W3 is a wavelength range that mainly includes the range on the long wavelength side of the red component (R). The lowest transmittance of the filter member 10 within the third wavelength band W3 is defined as a minimum value MIN3.

[0027] The wavelength band of 380 nm or more and 445 nm or less is defined as a fourth wavelength band W4. That is, the fourth wavelength band W4 is a wavelength range that mainly contains the blue component (B). The highest transmittance of the filter member 10 within the fourth wavelength band W4 is defined as a maximum value MAX1.

[0028] The wavelength band of 500 nm or more and 540 nm or less is defined as a fifth wavelength band W5. That is, the fifth wavelength band W5 is a wavelength range that mainly includes a green component (G). The highest transmittance of the filter member 10 within the fifth wavelength band W5 is defined as a maximum value MAX2.

[0029] The wavelength band of 580 nm or more and 700 nm or less is defined as a sixth wavelength band W6. That is, the sixth wavelength band W6 is a wavelength range that mainly includes the red component (R). The highest transmittance of the filter member 10 within the sixth wavelength band W6 is defined as a maximum value MAX3.

[0030] In the transmission spectrum of the filter member 10, the maximum value MAX1 is 1.1 times or more the minimum value MIN1. The maximum value MAX2 is four times or more the minimum value MIN2. The maximum value MAX3 is two times or more the minimum value MIN3. That is, the filter member 10 according to this embodiment has high transmittance for each of red (R), green (G), and blue (B), and low transmittance for each of the range between blue and green (first wavelength band W1), between green and red (second wavelength band W2), and on the long wavelength side of red (third wavelength band W3). This enables RGB to be emphasized, thereby widening the color gamut of a typical display. Specifically, the lowest transmittance of the filter member 10 in each of the first wavelength band W1, second wavelength band W2, and third wavelength band W3, i.e., the minimum transmittance values ​​MIN1, MIN2, and MIN3, are all between 0% and 60%.

[0031] For example, the maximum transmittance MAX1 of the filter member 10 in the fourth wavelength band W4 is 50% or more. The average transmittance of the filter member 10 in the fourth wavelength band W4 is 40% or more. The fourth wavelength band W4 mainly contains a blue component. That is, the filter member 10 can transmit blue light with sufficient intensity.

[0032] Similarly, the maximum value MAX2 of the transmittance of the filter member 10 in the fifth wavelength band W5 is 40% or more. The average value of the transmittance of the filter member 10 in the fifth wavelength band W5 is 36% or more. The fifth wavelength band W5 mainly contains a green component. That is, the filter member 10 can transmit green light with sufficient intensity.

[0033] Similarly, the maximum value MAX3 of the transmittance of the filter member 10 in the sixth wavelength band W6 is 50% or more. The average value of the transmittance of the filter member 10 in the sixth wavelength band W6 is 30% or more. The sixth wavelength band W6 mainly contains a red component. That is, the filter member 10 can transmit red light with sufficient intensity.

[0034] In this embodiment, the luminous transmittance of the filter member 10 is 20% or more. Luminous transmittance is also referred to as visible light transmittance. The luminous transmittance is the ratio of the transmittance of light in the entire visible light band of 380 nm to 780 nm, multiplied by the spectral luminous efficiency function and then added together. The high luminous transmittance of the filter member 10 ensures that a sufficient amount of light reaches the eyes even when viewing a display through the filter member 10.

[0035] The minimum values ​​MIN1 to MIN3 in the transmission spectrum of the filter member 10 are formed by one or more types of absorbing dyes 12. That is, by including one or more types of absorbing dyes 12, the filter member 10 has three valleys (minimum values ​​MIN1 to MIN3) in the transmission spectrum.

[0036] The transmission spectra of specific examples of the filter member 10 will be described below with reference to FIGS.

[0037] [Example 1] First, the transmission spectrum of the filter member 10 according to Example 1 will be described with reference to Fig. 2. Fig. 2 is a diagram showing the transmission spectrum of the filter member 10 according to Example 1. In Fig. 2, the horizontal axis represents wavelength (unit: nm) and the vertical axis represents transmittance (unit: %). The solid line graph represents the measured values ​​of the transmittance of the sample product, and the dashed line graph represents the simulated values ​​(SM values).

[0038] The filter member 10 having the transmission spectrum shown in Fig. 2 contains three types of absorbing dyes C1 to C3. Fig. 3 is a diagram showing the absorption spectra of the three types of absorbing dyes C1 to C3. In Fig. 3, the horizontal axis represents wavelength (unit: nm) and the vertical axis represents transmittance (unit: %). The absorption spectrum shown in Fig. 3 is a value obtained by measuring the transmittance of a transparent substrate in a state where a predetermined amount of absorbing dye is dispersed inside the transparent substrate.

[0039] The absorption dye C1 has an absorption peak whose peak wavelength is located within the first wavelength band W1. As shown by the solid line in Figure 3, the absorption peak of the absorption dye C1 has a peak wavelength of approximately 495 nm, and the transmittance in this case is approximately 15%.

[0040] The absorption dye C2 has an absorption peak whose peak wavelength is located within the second wavelength band W2. As shown by the dashed line in Fig. 3, the absorption peak of the absorption dye C2 has a peak wavelength of approximately 595 nm, and the transmittance in this case is approximately 0%.

[0041] The absorption dye C3 has an absorption peak whose peak wavelength is located within the third wavelength band W3. As shown by the dotted line in Figure 3, the absorption peak of the absorption dye C3 has a peak wavelength of approximately 715 nm, and the transmittance in this case is approximately 5%.

[0042] The filter member 10 according to Example 1 contains three types of absorbing dyes C1 to C3 in a ratio of C1:C2:C3=0.0015 wt %:0.012 wt %:0.0045 wt %, resulting in a transmission spectrum as shown in FIG.

[0043] In the measured values ​​of the transmission spectrum shown in Figure 2, the minimum transmittance MIN1 in the first wavelength band W1 is located at 495 nm and is 18%, the minimum transmittance MIN2 in the second wavelength band W2 is located at 595 nm and is 0.3%, and the minimum transmittance MIN3 in the third wavelength band W3 is located at 725 nm and is 0.9%.

[0044] The minimum values ​​MIN1, MIN2, and MIN3 are due to the absorption peaks of the absorber dyes C1, C2, and C3, respectively. The wavelengths of the minimum values ​​MIN1, MIN2, and MIN3 are located near the peak wavelengths of the corresponding absorber dyes C1, C2, and C3. In the simulation, the three minimum values ​​of transmittance are substantially equal to the peak wavelengths of the corresponding absorber dyes C1, C2, and C3.

[0045] 2, the maximum value MAX1 in the fourth wavelength band W4 is located at 425 nm and is 58%. That is, the maximum value MAX1 is approximately 3.2 times the minimum value MIN1. The average transmittance of the filter member 10 in the fourth wavelength band W4 is 40%.

[0046] The maximum value MAX2 of the transmittance in the fifth wavelength band W5 is located at 525 nm and is 51%. In other words, the maximum value MAX2 is approximately 255 times the minimum value MIN2. The average value of the transmittance of the filter member 10 in the fifth wavelength band W5 is 36%.

[0047] The maximum value MAX3 in the sixth wavelength band W6 is located at 670 nm and is 50%. That is, the maximum value MAX3 is approximately 55 times the minimum value MIN3. The average value of the transmittance of the filter member 10 in the sixth wavelength band W6 is 30%. The luminous transmittance of the filter member 10 according to Example 1 is 24.8%.

[0048] [Example 2] Next, the transmission spectrum of the filter member 10 according to Example 2 will be described with reference to Fig. 4. Fig. 4 is a diagram showing the transmission spectrum of the filter member 10 according to Example 2. In Fig. 4, the horizontal axis represents wavelength (unit: nm) and the vertical axis represents transmittance (unit: %). The solid line graph represents the measured values ​​of the transmittance of the sample product, and the dashed line graph represents the simulated values ​​(SM values).

[0049] The filter member 10 having the transmission spectrum shown in Fig. 4 contains four types of absorbing dyes C4 to C7. Fig. 5 is a diagram showing the absorption spectra of the four types of absorbing dyes C4 to C7. In Fig. 5, the horizontal axis represents wavelength (unit: nm) and the vertical axis represents transmittance (unit: %). The absorption spectrum shown in Fig. 5 is a value obtained by measuring the transmittance of a transparent substrate in a state where a predetermined amount of absorbing dye is dispersed inside the transparent substrate.

[0050] The absorption dye C4 has an absorption peak whose peak wavelength is located within the first wavelength band W1. As shown by the solid line in Figure 5, the absorption peak of the absorption dye C4 has a peak wavelength of approximately 495 nm, and the transmittance in this case is approximately 57%.

[0051] The absorption dye C5 has an absorption peak whose peak wavelength is located within the second wavelength band W2. As shown by the dashed-dotted line in Figure 5, the absorption peak of the absorption dye C5 has a peak wavelength of approximately 575 nm, and the transmittance in this case is approximately 52%.

[0052] The absorption dye C6 has an absorption peak whose peak wavelength is located within the second wavelength band W2. As shown by the dashed line in Fig. 5, the absorption peak of the absorption dye C6 has a peak wavelength of approximately 595 nm, and the transmittance in this case is approximately 35%.

[0053] The absorption dye C7 has an absorption peak whose peak wavelength is located within the third wavelength band W3. As shown by the dotted line in Fig. 5, the peak wavelength of the absorption peak of the absorption dye C7 is, for example, about 720 nm, and the transmittance in this case is about 58%.

[0054] The filter member 10 according to Example 2 contains three types of absorbing dyes C4 to C7 in a ratio of C4:C5:C6:C7=0.00045 wt %:0.001125 wt %:0.00225 wt %:0.00075 wt %, resulting in a transmission spectrum as shown in FIG.

[0055] In the actual measured values ​​of the transmission spectrum, the minimum value MIN1 in the first wavelength band W1 is located at 495 nm and is 57%. The minimum value MIN2 in the second wavelength band W2 is located at 595 nm and is 16%. The minimum value MIN3 in the third wavelength band W3 is located at 725 nm and is 40%. The minimum value MIN1 is due to the absorption peak of the absorber dye C4. The minimum value MIN2 is due to the absorption peaks of the absorber dyes C5 and C6. The minimum value MIN3 is due to the absorption peak of the absorber dye C7.

[0056] 4, the maximum value MAX1 in the fourth wavelength band W4 is located at 430 nm and is 79%. That is, the maximum value MAX1 is approximately 1.3 times the minimum value MIN1. The average transmittance of the filter member 10 in the fourth wavelength band W4 is 58%.

[0057] The maximum value MAX2 in the fifth wavelength band W5 is located at 525 nm and is 74%. In other words, the maximum value MAX2 is approximately four times the minimum value MIN2. The average transmittance of the filter member 10 in the fifth wavelength band W5 is 68.5%.

[0058] The maximum value MAX3 in the sixth wavelength band W6 is located at 675 nm and is 80%. In other words, the maximum value MAX3 is approximately twice the minimum value MIN3. The average value of the transmittance of the filter member 10 in the sixth wavelength band W6 is 64%. The luminous transmittance of the filter member 10 according to Example 2 is 57.4%.

[0059] [Game System] Next, a game system including the optical component 1 according to this embodiment will be described with reference to FIG.

[0060] 6 is a diagram showing the configuration of a game system 100 according to this embodiment. As shown in FIG. 6, the game system 100 includes an optical component 1 and a display 110.

[0061] The display 110 is a display device that displays game images. The display 110 is, for example, a liquid crystal display device or an organic EL (Electroluminescence) display device. A liquid crystal display device generally includes a light source that emits white light. The light source includes a blue LED (Light Emitting Diode) and a yellow phosphor. The yellow phosphor emits yellow light by wavelength-converting a portion of the blue light emitted from the blue LED. The blue light that has not been wavelength-converted and the yellow light are combined to form white light.

[0062] Fig. 7 is a diagram showing the emission spectrum of the display 110 of the game system 100 according to the present embodiment. In Fig. 7, the horizontal axis represents wavelength (unit: nm), and the vertical axis represents light intensity. As shown in Fig. 7, the emission spectrum of the display 110 has a large overlap between red light (R) and green light (G). In other words, the color gamut of the display 110 is insufficient.

[0063] 6, in the game system 100 according to the present embodiment, a user U wears optical components 1 (glasses) and views a display 110. That is, light from the display 110 enters the eyes of the user U via a filter member 10 of the optical components 1. As described above, the filter member 10 absorbs light in the first wavelength band W1, the second wavelength band W2, and the third wavelength band W3, thereby reducing overlap between the RGB colors.

[0064] Fig. 8 is a diagram showing an emission spectrum of the display 110 when passing through the filter member 10 according to Example 1. Fig. 9 is a diagram showing an emission spectrum of the display 110 when passing through the filter member 10 according to Example 2. In Figs. 8 and 9, the horizontal axis represents wavelength (unit: nm), and the vertical axis represents light intensity.

[0065] 8 and 9, the overlap between red light (R), green light (G), and red light (R) is reduced. In particular, the reduction in overlap between red light (R) and green light (G) is significant. This increases the separation of each of the RGB colors, thereby enabling the color gamut of the display 110 to be expanded when viewed through the filter member 10.

[0066] Fig. 10 is a diagram showing the color gamut of display 110 of game system 100 according to this embodiment. Specifically, Fig. 10 shows a chromaticity diagram (CIE 1931) defined by CIE (International Commission on Illumination).

[0067] In FIG. 10, the dotted triangle with its vertices plotted as triangles indicates the color gamut of the display 110 alone, and corresponds to the emission spectrum in FIG. 7. The dashed triangle with its vertices plotted as circles indicates the color gamut of the display 110 when viewed through the filter member 10 of Example 2, and corresponds to the emission spectrum in FIG. 9. The solid triangle with its vertices plotted as squares indicates the color gamut of the display 110 when viewed through the filter member 10 of Example 1, and corresponds to the emission spectrum in FIG. 8. The plots at each vertex of the triangle correspond to the RGB of the display 110, respectively. As shown in FIG. 10, it can be seen that the color gamut is wider when viewed through the filter member 10 compared to the color gamut of the display 110 alone.

[0068] [Effects, etc.] As described above, the filter member 10 according to this embodiment includes a substrate 11 and one or more types of absorbing dyes 12 dispersed in the substrate 11. The absorption spectrum of the one or more types of absorbing dyes 12 includes an absorption peak whose peak wavelength is located in a first wavelength band W1 of 450 nm to 510 nm, an absorption peak whose peak wavelength is located in a second wavelength band W2 of 540 nm to 600 nm, and an absorption peak whose peak wavelength is located in a third wavelength band W3 of 650 nm to 780 nm. The highest transmittance MAX1 of the filter member 10 in a fourth wavelength band W4 of 380 nm to 445 nm is at least 1.1 times the lowest transmittance MIN1 of the filter member 10 in the first wavelength band W1. The highest transmittance MAX2 of the filter member 10 in a fifth wavelength band W5 of 500 nm to 540 nm is at least four times the lowest transmittance of the filter member 10 in the second wavelength band W2. The highest transmittance MAX3 of the filter member 10 in the sixth wavelength band W6 of 580 nm or more and 700 nm or less is at least twice the lowest transmittance MIN3 of the filter member 10 in the third wavelength band W3.

[0069] This improves the separation of the RGB colors of the display 110, so that the color gamut of the display 110 can be expanded by viewing through the filter member 10.

[0070] Furthermore, for example, the highest transmittance of the filter member 10 in the fourth wavelength band W4 is 50% or more, the highest transmittance of the filter member 10 in the fifth wavelength band W5 is 40% or more, and the highest transmittance of the filter member 10 in the sixth wavelength band W6 is 50% or more.

[0071] This allows the display 110 to have high transmittance for each of the RGB colors, thereby improving the visibility of the display 110.

[0072] For example, the average transmittance of the filter member 10 in the fourth wavelength band W4 is 40% or more, the average transmittance of the filter member 10 in the fifth wavelength band W5 is 36% or more, and the average transmittance of the filter member 10 in the sixth wavelength band W6 is 30% or more.

[0073] This allows the display 110 to have high transmittance for each of the RGB colors, thereby improving the visibility of the display 110.

[0074] Furthermore, for example, the luminous transmittance of the filter member 10 is 20% or more.

[0075] This provides high transmittance in the visible light range, thereby improving the visibility of the display 110.

[0076] Furthermore, for example, the lowest transmittance of the filter member 10 in each of the first wavelength band W1, the second wavelength band W2, and the third wavelength band W3 is not less than 0% and not more than 60%.

[0077] This improves the separation of the RGB colors of the display 110, so that the color gamut of the display 110 can be expanded by viewing through the filter member 10.

[0078] Furthermore, for example, the substrate 11 is a resin substrate.

[0079] This allows the absorbing dye 12 to be easily mixed into the substrate 11. Furthermore, since a material with excellent transparency can be used as the resin substrate, it is possible to increase the transmittance of the filter member 10. Furthermore, since molding is easy, lenses of a predetermined shape can be easily formed.

[0080] Furthermore, for example, the one or more types of absorbing dyes 12 are three or more types of absorbing dyes that are different from one another.

[0081] This makes it possible to easily adjust the transmission spectrum of the filter member 10 by using three or more types of absorbing dyes 12.

[0082] Moreover, the optical component 1 according to this embodiment includes a filter member 10. Moreover, the optical component 1 is, for example, a pair of glasses.

[0083] This allows the optical component 1 to be worn on the head of the user U, freeing both hands. Since both hands are free, the optical component 1 is useful for operating a controller of the game system 100 or the like.

[0084] Furthermore, the game system 100 according to this embodiment includes an optical component 1 and a display 110 that displays game images.

[0085] This widens the color gamut of the display 110, improving visibility. Since an inexpensive general-purpose display can be used as the display 110, the game system 100 can be constructed at low cost. This is particularly useful in the field of e-sports, which has been expanding in recent years.

[0086] (others) The filter member, optical component, and game system according to the present invention have been described above based on the above-mentioned embodiment, but the present invention is not limited to the above-mentioned embodiment.

[0087] For example, in the above embodiment, the optical component 1 is spectacles, but the present invention is not limited to this. The optical component 1 may be goggles. Furthermore, the filter members 10 do not need to be separate for the left and right eyes. The optical component 1 may include a single filter member 10 for both eyes. Alternatively, the optical component 1 may be a lens of spectacles, a lens of goggles, or a contact lens.

[0088] Although the substrate 11 is a resin substrate in the above example, the substrate 11 is not limited to this and may be a glass substrate, a quartz substrate, or the like.

[0089] Furthermore, for example, the optical component 1 may be used in systems other than the game system 100. For example, the optical component 1 may be used in an editing system or viewing system for images such as photographs or moving images. For example, the display 110 may display video acquired via the Internet or broadcast, and the user U may view the video displayed on the display 110 via the optical component 1.

[0090] In addition, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art would think of, and forms realized by arbitrarily combining the components and functions of each embodiment within the scope of the present invention. [Explanation of symbols]

[0091] 1 Optical Components 10 Filter member 11 Base material 12 Absorbing dyes 100 Game System 110 Display

Claims

1. A filter member, A substrate; one or more absorbing dyes dispersed in the substrate; The absorption spectrum of the one or more absorption dyes is an absorption peak having a peak wavelength located within a first wavelength band of 450 nm or more and 510 nm or less; an absorption peak having a peak wavelength located within a second wavelength band of 540 nm or more and 600 nm or less; an absorption peak having a peak wavelength located within a third wavelength band of 650 nm or more and 780 nm or less; the highest transmittance of the filter member in a fourth wavelength band of 380 nm or more and 445 nm or less is 1.1 times or more the lowest transmittance of the filter member in the first wavelength band, the highest transmittance of the filter member in a fifth wavelength band of 500 nm or more and 540 nm or less is four times or more the lowest transmittance of the filter member in the second wavelength band; the highest transmittance of the filter member in a sixth wavelength band of 580 nm or more and 700 nm or less is at least twice the lowest transmittance of the filter member in the third wavelength band; The lowest transmittance of the filter member within the first wavelength band is 18% or more. Filter member.

2. the highest transmittance of the filter member in the fourth wavelength band is 50% or more; the highest transmittance of the filter member in the fifth wavelength band is 40% or more; The highest transmittance of the filter member in the sixth wavelength band is 50% or more. The filter element according to claim 1 .

3. an average transmittance of the filter member within the fourth wavelength band is 40% or more; an average transmittance of the filter member within the fifth wavelength band is 36% or more; an average transmittance of the filter member within the sixth wavelength band is 30% or more; The filter member according to claim 1 or 2.

4. The luminous transmittance of the filter member is 20% or more. The filter member according to any one of claims 1 to 3.

5. the lowest transmittance of the filter member within the first wavelength band is 60% or less; the lowest transmittance of the filter member in each of the second wavelength band and the third wavelength band is 0% or more and 60% or less; The filter member according to any one of claims 1 to 4.

6. The substrate is a resin substrate. The filter member according to any one of claims 1 to 5.

7. the one or more types of absorbing dyes are three or more types of absorbing dyes that are different from one another; The filter member according to any one of claims 1 to 6.

8. An optical component comprising the filter member according to any one of claims 1 to 7.

9. The optical component is glasses or goggles, or lenses thereof.

9. The optical component according to claim 8.

10. The optical component according to claim 9 ; A display device for displaying game images. Game system.

Images