KR101517672B1 - Color-generation apparatus by means of polarization generating color having high chroma or darked saturation - Google Patents

Abstract

The color forming apparatus 1000a according to the present invention includes a first polarizing unit 10, a first birefringent medium 20, a second polarizing unit 30, a second polarizing unit 30, and a second polarizing unit 30, which are sequentially stacked and attached on the upper surface of a signboard 100a. A birefringent medium 40 and a third polarizing means 50.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a color generating apparatus using polarized light for generating high saturation or a dark color,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a color creating apparatus for creating color using polarized light, and more particularly, to a color creating apparatus using polarized light capable of producing color with high saturation or density.

Color can be created using polarized light. That is, when a plate or film type birefringent medium is arranged between two polarizing means, a color appears when one of the two polarizing means is viewed.

The present inventors have found that a polarizing display device capable of changing color and shape depending on a viewing position, a color changing device for forming a display in which a color changes, and a color changing device And a polarized light illumination device in which a light reflected by a polarized light reflection part in which some or all of the light reflected by the light is polarized is colored. These inventions are disclosed in Korean patent application No. 10- 2012-0070627 (the name of the invention: a polarizing display device in which the hue and shape can be changed according to the viewing position), 10-2012-0070519 (entitled " color conversion device using polarized light) -0124247 (polarized light system).

In connection with creating color in a display or illumination using polarized light as described above, it may be preferable that the color generated is high in saturation or dark in color. Generally, in such a case, the color is clear and the attention of the user is increased, so that the effects of advertising, publicity, and the like are enhanced and the design aesthetic feeling can be enhanced.

The present invention provides a structure in which color can be created using polarized light in a simple but highly efficient manner with high saturation or a high density.

SUMMARY OF THE INVENTION An object of the present invention is to provide a color creating apparatus using polarized light that is simple in generating color using polarized light, but can produce a high saturation or a dark color with high efficiency.

The present invention relates to a liquid crystal display comprising a first polarizing means; A first birefringent medium; A second polarizing means; A second birefringent medium; And the third polarizing means, wherein the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium and the third polarizing means sequentially pass light therethrough And the light having passed through the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means in succession is color-created. The present invention provides a color creating apparatus using polarized light.

According to the present invention, it is preferable that the first and second birefringent media are provided in the form of film, sheet or plate.

According to the present invention, the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium and the third polarizing means may be attached to each other, all of them are spaced apart, And some may be spaced apart.

According to the present invention, the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium and the third polarizing means are fixedly installed and others are movable, or both The first birefringent medium, the second birefringent medium, the second birefringent medium, and the third polarizing means so as to move the first birefringent medium, the second birefringent medium, the second birefringent medium, and the third polarizing means, Further comprising a relative movement driving device for relatively moving the polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means relative to each other, The first birefringent medium, the second birefringent medium, the second birefringent medium, and the third polarizing means, It can achieve change.

According to the present invention, the first polarizing means, the second polarizing means, or the third polarizing means are composed of a plurality of regions having mutually different polarizing directions, or the first birefringent medium or the second The birefringent medium may be composed of a plurality of zones having mutually different birefringence characteristics.

According to the present invention, a light source for supplying light to the first polarizing means is provided, and the light source, the first polarizing means, the first birefringent medium, the second polarizing means, A third polarizing means composed of the polarizing light reflection means is disposed on the side opposite to the first polarizing means, The illumination reflector receives light emitted from the illumination means and reflects the light emitted from the illumination means. The light reflected from the illumination means reflects light emitted from the illumination means, .

In this case, the polarizing beam reflector may include a base member and a polarizing means attached to the upper surface of the base member.

According to the present invention, there is further provided a light source for supplying light to the first polarizing means, wherein the light source, the first polarizing means and the first birefringent medium constitute illumination means, A third polarizing means composed of the second polarizing means, the second birefringent medium and the polarizing beam refracting means is arranged on the illumination unit Wherein the light reflected from the illumination means reflects the light emitted from the illumination means and reflects the light emitted from the illumination means, .

In this case, the polarizing reflectance may include a base member and a polarizing means attached to the upper surface of the base member.

According to the present invention, it is preferable that the color creating apparatus using the polarized light is installed so that the color generated in the product can be seen from the outside of the product.

According to the present invention, it is preferable that the third polarizing means is exposed to the outside of the product so that the created color is visible from the outside of the product.

According to the present invention, the color producing apparatus using the polarized light may have a specific form including letters.

According to the present invention, the first polarizing means, the second polarizing means, or the third polarizing means are composed of a plurality of regions having mutually different polarizing directions, or the first birefringent medium or the second The birefringent medium may be composed of a plurality of zones having mutually different birefringence characteristics.

The present invention also relates to a liquid crystal display comprising: first polarizing means; A first birefringent medium; A second polarizing means; A second birefringent medium; A third polarizing means; Here, the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means are arranged so that light can pass through them sequentially, The light having sequentially passed through the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means is seen to be colored, and the first polarizing means, the first birefringent medium, The second polarizing means, the second birefringent medium, and the third polarizing means are installed so that some of them are fixedly installed and others are movable, or all of them are movable so as to be able to move; Instruction means drive means for driving the instruction means; The first birefringent medium, the second birefringent medium, the second birefringent medium, and the third polarizing means in association with the movement of the indicating means, And a relative motion driving device for relatively moving the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means relative to each other, Wherein the color of the light having passed through the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means sequentially changes.

The present invention further relates to a liquid crystal display comprising: first polarizing means; A first birefringent medium; A second polarizing means; A second birefringent medium; A third polarizing means; Here, the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means are arranged so that light can pass through them sequentially, An indicator for indicating a color of the light that has sequentially passed through the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means; Wherein the third polarizing means, the second birefringent medium, the second polarizing means, the first birefringent medium, and the first polarizing means are driven by the instruction Means for moving the indicating means in accordance with the driving of the indicating means driving means and for moving the first polarizing means, the first birefringent medium, the second polarizing means and the second polarizing means in accordance with the movement of the indicating means, And the color of the light sequentially passing through the second birefringent medium and the third polarizing means changes.

The present invention also relates to a liquid crystal display comprising: a first polarizing means; A first birefringent medium; A second polarizing means; A second birefringent medium; A third polarizing means; Here, the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means are arranged so that light can pass through them sequentially, The light having sequentially passed through the first birefringent medium, the second polarizing means, the second birefringent medium, and the third polarizing means is seen to be colored, and the first polarizing means, the first birefringent medium, The second birefringent medium and the third polarizing means constitute an indicating means for indicating a specific value and an indicating means driving means for driving the indicating means, And the second polarizing means and the second birefringent medium are moved in accordance with the movement of the indicating means, And the color of the light sequentially passing through the third polarizing means changes.

The present invention also relates to a liquid crystal display comprising: a first polarizing means; A first birefringent medium; A second polarizing means; A second birefringent medium; Here, the first polarizing means, the first birefringent medium, the second polarizing means, and the second birefringent medium are arranged so that light can pass therethrough sequentially, and the first polarizing means and the first birefringent medium, And a polarizing shadow projecting means for projecting light having passed through the second polarizing means and the second birefringent medium and reflecting incident polarized light so that the first polarizing means and the first polarizing means, And a shadow that is transmitted through the birefringent medium, the second polarizing means, and the second birefringent medium and projected onto the polarizing shadow projection means becomes colored.

According to the present invention, the polarizing shadow projection unit may include a reflection means for forming a shadow and a third polarization means provided on the front surface of the reflection means.

According to the present invention, the polarized-light projection means may be such that the light incident as a transparent member is partially transmitted through the surface thereof, partly reflected and reflected, and all of the reflected light is partially or partially polarized.

According to the present invention, the reflecting means can be used to form diffuse reflection.

According to the present invention, the second polarizing means and the second birefringent medium are attached to each other, and the attached second polarizing means and the second birefringent medium can be decorative or sign members.

According to the present invention, the first birefringent medium may be installed apart from the decorating or sine member and perform a motion.

In addition, the decorative or sine member can be made to move.

According to the present invention, the movement of the first birefringent medium or the decorative or sine member may be rotational motion or the like.

The present invention provides a color creation device capable of creating a high saturation or a dark color using polarized light. The color creating apparatus according to the present invention is a very simple structure and can have a higher color saturation or a darker color than a conventional color producing apparatus using polarized light. In the structure of the present invention, Is not predicted from the conventional thought that the birefringent medium is arranged between the two polarizing means and the light passing through them has a color.

The color producing apparatus according to the present invention can be applied to a sign board such as a signboard to improve the saturation or the density and also to be installed as a design element or a brand element in the appearance of the product to create a color design with high saturation or high density And can be applied to a color conversion device to produce a color conversion with high saturation or high density and can be applied to an indicator to produce a high color saturation or density change according to a change in indication value, The system can be adapted to have light of high saturation or density reflected from the polarizing reflectance.

Meanwhile, the color producing apparatus using the polarized light according to the present invention shows different colors according to the change of the viewing position, thereby attracting attention of the viewer.

According to the present invention, even when the light of the light source is white as the white light, it is possible to produce a color with high saturation by the color creating apparatus according to the present invention.

The present invention also allows shadows to create colors, in which case the shadows can be made primarily of decorative or sign elements, with shadow or decorative elements being the elements of the display.

1 is a view showing a basic structure of a color creating apparatus according to the present invention;
2 is a view showing a case where a color creating apparatus according to the present invention is applied to a signboard;
FIGS. 3 and 4 are views showing a color creating apparatus according to the present invention installed on a door of a refrigerator product;
5 is a diagram illustrating a case where the color creating apparatus according to the present invention is applied to a character signboard;
6 is a diagram illustrating a case where the color creating apparatus according to the present invention is applied to a color conversion apparatus;
7 and 8 are views showing a case where the color creating apparatus according to the present invention is applied to a color conversion apparatus that can be used for a billboard or an interior;
9 to 12 are views showing a case where the color creating apparatus according to the present invention is applied to an indicator;
13 and 14 are views showing a case where the color creating apparatus according to the present invention is applied to a polarizing illumination system;
FIG. 15 is a diagram showing a shadow coloring apparatus using polarized light according to the present invention; FIG.
FIG. 16 is a view illustrating a color created according to the present invention and a color created according to a conventional technique. FIG.

Embodiments of the present invention will now be described with reference to the accompanying drawings.

First, FIG. 1 shows an example of a color producing apparatus 1000 using polarized light according to the present invention.

1 (a), the color producing apparatus 1000 is provided with a first polarizing means 10, and a first birefringent medium 20 is disposed in front of the first polarizing means 10 The second birefringent medium 40 is disposed in front of the second polarizing means 30 and the second birefringent medium 40 is disposed in front of the birefringent medium 20, The third polarizing means 50 is disposed.

In the present embodiment, a light source unit 8 is provided behind the first polarizing unit 10. The light source unit 8 emits light and includes an LED lamp, a cold cathode fluorescent lamp (CCFL) Or a light guide plate to emit the light of the light source uniformly and effectively together with the light source.

The first, second, and third polarizing means 10, 30, 50 polarize light, and a polarizing film, a polarizing filter, a polarizing plate, or the like can be used.

The first and second birefringent media 20 and 40 are anisotropic materials that cause birefringence with respect to light incident thereon.

According to the present invention, the birefringent medium 20 (40) is usually made of plastic and has a film, sheet or plate shape. During the molding, the birefringence medium (20) 40 is subjected to a flow phenomenon or a phenomenon such as tensile, For example, a plate of a material such as an OPP film, a cellophane film, a PET film, or a PET sheet having birefringence, PET, PC (polycarbonate) having birefringence, or the like may be used. Can be used.

Generally, a film refers to a film having a thickness of 0.25 mm or less, and a sheet refers to a film having a thickness of 0.25 mm to 1 mm or less.

On the other hand, a birefringent lens, which is a lens having birefringence, usually has a thickness of 1 mm or more and is likely to belong to a plate type birefringent medium.

The light emitted from the light source means 8 passes through the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40, The light is sequentially passed through the polarizing means 50, and the light has a high saturation or a color of a density.

That is, when only the first polarizing means 10, the first birefringent medium 20, and the second polarizing means 30 are provided according to the prior art, the light sequentially passing therethrough has a color, Light that has sequentially passed through the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40, and the third polarizing means 50, The saturation or the density becomes high.

 According to the present invention, there may be a change in color depending on the viewing angle or position, which may vary depending on the viewing angle or position, but the overall saturation or concentration is increased.

Therefore, according to the present invention, when the light emitted from the light source means 8 is white light, although the initial light has no color, the light passing through the polarized light display device according to the present invention has a high color saturation It becomes dark color.

When the light source means 8 is provided according to the present invention, it is preferable that the light source means 8 is a surface light source and emits uniform light over the entire area.

For example, referring to FIG. 1 (b), it is preferable that the light source unit 8 includes a light source 38 and a light guide plate 39 for receiving and emitting light from the light source 38. In this case, it is preferable that the light source 38 of the light source means 8 uses LEDs or cold-cathode fluorescent lamps (CCFL).

Meanwhile, according to the present invention, as the viewing position is changed, the light path changes, and accordingly, different colors may appear according to the change of the viewing position.

FIG. 16 is a photograph showing a color created according to the color creating apparatus according to the present invention. That is, according to the present invention, the light source, the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium and the third polarizing means are sequentially laminated, The first birefringent medium and the second polarizing means are sequentially stacked. In the case of FIG. 16, the first birefringent medium and the second birefringent medium both use a plate material of PET material, and the first polarizing means, the second polarizing means, and the third polarizing means use a polarizing film.

In this case, the component parts according to the present invention located at the center are much higher in chroma and thus have a vivid color.

According to the present invention, in many cases, the light source, the first polarizing plate, the first birefringent medium, and the second polarizing plate are sequentially stacked, as compared with the conventional case, but in some cases, Lt; / RTI > That is, the dark color which is different from the conventional one but comes out with a darker color.

Hereinafter, in the context of the present invention, mainly the case where the saturation is high is mentioned, but this should be taken to include the case where the concentration is increased.

FIG. 2 shows an example in which the color creating apparatus 1000a according to the present invention is applied to the signboard 100a.

First, a signboard 100a is provided, and the signboard 100a illuminates the dial (dream projector) on the front face of the signboard 100a with the light source means 8.

The first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50 are attached to the front face of the signboard 100a in order do. That is, the color creating apparatus 1000a according to the present invention is installed on the front surface of the signboard 100a.

On the other hand, the color producing apparatus 1000a according to the present invention may be installed between the light source 8 and the dial (dream projector) inside the signboard 100a.

In the present embodiment, the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50 are film, Are used and attached to each other.

According to the present invention, the color of the signboard 100a appears when the face of the face of the signboard 100a is viewed, and the color that is visible is highly saturated.

On the other hand, in this case, the light path from the light source means 8 changes in color as seen by the user depending on the position of another user. For example, when a user moves, such as walking, watching a signboard while riding on a bus, or the like, the color changes as the angle of the signboard changes.

FIG. 3 shows an example in which the color creating apparatus according to the present invention is applied to the refrigerator 90. FIG.

The door 4 of the refrigerator 90 is provided with a concave space portion 48 to provide a light source means 8 and a transmissive portion 80 through which the light of the light source means 8 is transmitted.

The transmissive portion 80 is for emitting the light of the light source member 8 installed inside the door to the front, and may be semi-transmissive as well as transmissive. The transparent portion 80 is made of glass or synthetic resin so that the light of the light source means 8 installed on the door 4 can be emitted to the outside of the door.

A color creating apparatus 1000b according to the present invention is installed in front of the transmitting unit 80. [ That is, the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40, and the third polarizing means 50 are sequentially disposed on the transmissive portion 80 , And they are all preferably laminated and adhered to each other in the form of a film, sheet or plate.

In the present embodiment, the color creating apparatus 1000b may have various forms other than a circle and may have a character form. For example, the color creating apparatus 1000b may have the form of a brand.

In such a case, a specific color forming apparatus 1000b is installed in a product (in this case, a refrigerator), and the product is provided with a portion having a specific shape as a color of high saturation, thereby attracting attention of the user and enhancing the design .

In this case, if the light path from the light source means 8 to the user is different according to the position of the user, the color changes, and the attention and design features can be further strengthened.

According to the present invention, the color creating apparatus 1000b may be installed on the entire front surface 5 of the door. The first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, and the second polarizing means 30 are formed on the upper surface of the transmissive portion 80 with respect to all the front surfaces of the door. The second birefringent medium 40 and the third polarizing means 50 are stacked in order to produce a high saturation color in which the color changes depending on the position of the entire front surface of the door.

FIG. 4 shows another example 1000c in which the color creating apparatus according to the present invention is applied to the refrigerator 90. FIG.

In this case, a color creating apparatus 1000c is installed on the entire surface of the transmission unit 80 in which light of the light source unit 8 installed in the door 4 is emitted. The first polarization unit 10 and the first birefringence The second birefringent medium 40 and the third polarizing means 50 'are attached to the second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50'.

In the present embodiment, the third polarizing means 50 'are composed of a plurality of polarization regions 51, 52, 53, and 54 having mutually different polarization directions. For example, the polarization direction of the polarization regions 51 is different from that of the adjacent polarization regions 52, but may be the same as the polarization directions of the polarization regions 53 and 54 that are not adjacent to each other. Of course, the polarization directions of the polarization regions 51, 52, 53, and 54 may be different from each other.

In this case, in the color creating apparatus 1000c, the color appears for each of the polarization regions 51, 52, 53 and 54 of the third polarizing means 50 '. 52, 53 and 54 are displayed in different polarization regions while maintaining the same position, and different colors are displayed for different polarization regions 51, 52, 53 and 54 according to the change of the viewing position It looks in color.

It is preferable that the first polarizing means 10 or the second polarizing means 30 are adjacent to each other not only in the third polarizing means 50 'but also in a plurality of regions having different polarizing directions, When the medium 20 or the second birefringent medium 40 are adjacent to each other in a plurality of zones having different birefringence characteristics, different colors appear in different zones.

The birefringence characteristic refers to a property that a birefringence is made differently, such as a refraction angle (speed of light in a medium) of each refraction light incident on a birefringence medium by a ray of light, a distance of refraction or a distance of birefringence in a birefringence medium, The birefringence characteristics may be different using the medium itself (for example, in the case of different materials such as cellophane and OPP), or the same birefringence medium may be different in thickness or be arranged in different directions Direction and in a longitudinal direction), the birefringence characteristics can be made different.

FIG. 5 (a) shows another embodiment of the present invention in which the color creating apparatus 1000d according to the present invention is applied to a character sign.

An LED lamp substrate 38 in which a plurality of LEDs are arranged is disposed inside an A-shaped case 14, and a lid 44 made of a light guide plate is provided on the upper surface thereof.

The first polarizing means 10 ", the first birefringent medium 20" and the second polarizing means 30 ", the second birefringent medium 40" and the third polarizing means 40 " Means 50 "are stacked and attached in order, and these form a color creating apparatus 1000d.

The character signboard 1001 has a high saturation color, and the color changes depending on the viewing position.

As shown in FIG. 5B, the dial 1001, 1002, and 1003 can be combined to form a character sign, and each of the dials 1001, 1002, and 1003 has a color independently of each other, As the viewing position changes and the light passing through the other path is seen, the color changes according to the change of the viewing position.

6 shows a case where the color creating apparatus according to the present invention is applied to a color conversion apparatus. In other words, the color rendering apparatus according to the present invention is applied to a color conversion apparatus 2000a that displays a display in which colors change.

Referring to FIG. 6, the color changing apparatus 2000a has a case 4, in which a first polarizing means 10, a first birefringent medium 20 and a second polarizing means 30 The second birefringent medium 40 and the third polarizing means 50 are disposed such that light can pass through the first birefringent medium 40 and the third polarizing means 50. The first polarizing means 10 and the first birefringent medium 20, And the second polarizing means 30, the second birefringent medium 40, and the third polarizing means 50, the color is generated and appears.

In this embodiment, a cavity 44 is formed on the front surface of the case 4 so that the third polarizing means 50 is exposed to the outside through the cavity 44. Although not shown, a window made of glass or the like may be provided on the cavity 44 on the front surface of the case 4.

Therefore, when light is incident on the first polarizing means 10, the light is transmitted through the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30 and the second birefringent medium (40) and the third polarizing means (50) in order.

The first birefringent medium 20 and the second polarizing means 30 and the second birefringent medium 40 and the third polarizing means 50, The first birefringent medium 20 and the second polarizing means 30 are arranged in such a manner that the first and second birefringent media 20 and 30 and the second birefringent medium 20 are fixedly installed, The second birefringent medium 40, and the third polarizing means 50 are arranged so as to be movable apart from each other. That is, the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40, and the third polarizing means 50 are spaced apart from each other, .

In the present embodiment, for example, a polarizing plate or a polarizing film may be used for the first polarizing means 10, the second polarizing means 30 and the third polarizing means 50, and the first birefringent medium The first birefringent medium 20 and the second birefringent medium 40 may be birefringent plates.

The first birefringent medium 20 and the second polarizing means 30 and the second birefringent medium 40 and the third polarizing means 50, The first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40, and the third polarizing means (not shown) are driven by the first polarizing means 10, the first birefringent medium 20, 50 relative to each other relative to each other.

In the case of the color converter 2000a according to the present embodiment, the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40, The third polarizing means (50) are all rotatably mounted, so that the relative motion drive device can rotate relative to each other.

The relative motion drive apparatus will be described below in this embodiment.

The first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40 and the third polarizing means 40, which are rotatably installed in the case 4, The means 50 is constituted by gears and each of the coupling gears 101, 201, 301, 401 and 501 is engaged with the power transmission gear 91 provided on the shaft 98, 92 and 93 and 94 and 95 are engaged with each other and the shaft 98 is connected to the motor 95 and the belt 94 to receive power.

The gear ratio between the first polarizing means 10 and the connecting gear 101 and the power transmission gear 91 and the gear ratio between the first birefringent medium 20 and the connecting gear 201 and the power transmission gear 92 And the gear ratio between the second polarizing means 30 and the connecting gear 301 and the power transmission gear 53 and between the second birefringent medium 40 and the connecting gear 401 and the power transmission gear 94 The gear ratio and the gear ratio between the third polarizing means 50 and the connecting gear 501 and the power transmission gear 95 are different from each other and the first polarizing means 10 and the first birefringent medium 20, The second polarizing means 30, the second birefringent medium 40, and the third polarizing means 50 have different velocities, and thus relatively rotate relative to each other.

The second birefringent medium 40 and the third polarizing means 50 are sequentially passed through the first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50, The first birefringent medium 20 and the second polarizing means 30 and the second birefringent medium 40 and the third polarizing means 50 are relatively opposed to each other The high saturation color of the light changes even if the viewing position does not change.

In other words, according to the present invention, when viewing the third polarizing means 50, a high saturation color is seen and this color changes even if the viewing position does not change.

In this embodiment, a light source may be provided behind the first polarizing means 10, that is, in a direction opposite to the cavity 44.

In this case, it is preferable that the light source is a planar light source and emits uniform light over the entire area. For example, it is preferable that the light source is provided with an LED or a cold cathode fluorescent lamp (CCFL), and a light guide plate is provided on a front surface thereof.

When the light source is provided behind the first polarizing means 10, the color change is visible through the third polarizing means 50 exposed to the outside by the light of the light source, It is preferable to change the color even in a dark place or at night.

FIG. 7 shows another example (2000b) of a color conversion apparatus that changes color by applying the color creating apparatus according to the present invention, and can be used as a signboard or a billboard.

A first birefringent medium 20 is rotatably installed in front of the case 4, and a cavity 44 is formed on the front surface of the case 4. The first polarizing means 10 is fixedly installed, The second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50 are stacked on and fixed to each other and the third polarizing means 50 is fixed to the cavity 44 As shown in FIG.

The third polarizing means 50 consists of a plurality of zones 511 to 517 which are adjacent to each other with a different polarization direction, in which zones 511 to 516 are all spaced apart, all of which are adjacent to the underlying zone 517, The areas 516 to 516 are different from the area 517 in the polarization direction. As a result, the polarization directions are different from each other. However, the regions 511 to 516 may have the same or different polarization directions.

In the zones 511 to 516 of the third polarizing means 50, letters (dream projectors) are displayed.

A relative motion driving device 900 for driving the rotating first birefringent medium 20 is provided.

The relative motion driving apparatus 900 has a motor 94 and a belt 94 connecting the motor 95 and the first birefringent medium 20 to the first birefringent medium 20, The first birefringent medium 20 and the second polarizing means 30 and the second birefringent medium 40 and the third polarizing means 50 are rotated relative to each other so that the first polarizing means 10, do.

In this case, another color having a high saturation is displayed in each of the different polarization directions, and a color change is seen in each of the different polarization directions according to the driving of the relative motion driving device 900. If all the polarization directions from these areas 511 to 517 are different from each other, all of these areas 511 to 517 exhibit different colors and can produce different color changes. (In some cases, the same color appears in the regions 511 to 517 having different polarizing directions, but the same color can be produced in different regions.)

In such a case, the color of the plurality of areas of the third polarizing means 50 exposed to the outside changes color, so that it can be used as a signboard or a billboard having high attention.

On the other hand, a light source such as a planar light source or the like, or a reflecting member such as a mirror or an aluminum plate may be placed behind the first polarizing means 10.

FIG. 8 shows another example (2000c) of a color conversion device that changes color by applying the color creating device according to the present invention, and can be utilized as an interior decoration or a decoration.

8 (a), a case 4 is provided, a cavity 44 is formed on the front surface thereof, and a second birefringent medium 20 is rotatably disposed in front of the first polarizing means 10 And the second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50 are stacked and attached to each other, and the third polarizing means 50 And is exposed to the outside through the cavity 44.

The first polarizing means 10 is composed of two zones 10a and 10b and the zone 10b is in the form of a stream. The first birefringent medium 20 comprises a circular zone 20a representing the moon and a zone 20b constituting the background.

The third polarizing means 50 is composed of two zones 50a and 50b and the zone 50b is in the shape of a mountain and thus the zone 50a is the background.

A motor 95 is provided as a relative motion drive device 900 and a first birefringent medium 20 is rotated through a belt 94 to rotate the first polarizing means 10 and the first birefringent medium 20, The second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50 are relatively rotated.

These areas are superimposed so that the mountain 50b is seen as shown in FIG. 8B and the landscape where the moon 20a is floated on the left side of the mountain 50b and the inside 10b is flowing on the lower right side. These zones 10b, 20a and 30b have different colors with different colors.

In this situation, when the rotation direction and the range of the birefringent medium 20 are adjusted by adjusting the rotation angle of the motor 95 in the relative motion drive device 900 to make the normal and reverse rotations, the moon 20a is lifted, It is possible to produce a scene in which the color is changed differently.

On the other hand, a light source such as a surface light source or a reflecting member such as a mirror or an aluminum plate may be provided behind the first polarizing means 10.

The color creating apparatus according to the present invention may also be applied to an indicator in which a change in color is exposed to the outside according to the movement of the pointing means. An indicator is an indicator indicating a value through a pointing device. For example, a dashboard, a clock, or the like may be an example.

FIG. 9 shows a clock 3000a as an example of an indicator for indicating an output value. In this case, the clock hand becomes a pointing means for notifying and indicating time.

The watch 3000a has a case 4 and a plate-shaped first polarizing means 10 is installed in the case 4. The first polarizing means 10 includes a back plate for turning clock hands The polarizer 10 may be exposed to the outside through the cavity 44 of the case 4. In this case,

The first polarizing means 10 is provided with clock hands 5 and 5 as indicating means and each of the clock hands 5 and 5 'has hollow portions S1 and S2 Third polarizing means 50a1 and 50a2 which are exposed to the outside of the cavities S1 and S2 and a second birefringent medium 40a1 attached to the rear surfaces of the third polarizing means 50a1 and 50a2, (30a1) and (30a2) attached to the back surface of the second birefringent medium (40a1) and the second birefringent medium (40a2), and a first birefringent medium attached to the back surface of the second polarizing means And media 20a1 and 20a2.

A clockwise hand driving device 900 for driving the clock hands 5 and 5 'is a driving means for driving the clock hands 5 and 5 as instructing means.

Accordingly, when the clock hands 5 and 5 'are moved by the clock-eye-point driving device 900, the colors change in the third polarizing means 50a1 and 50a2 provided on the clock hands 5 and 5' appear. In other words, as the indicating means 5 and 5 'rotate, the color is changed while indicating the time, but according to the present invention, a high saturation color appears.

A light source may be provided behind the first polarizing means 10 or a reflecting member may be provided behind the first polarizing means 10 in other cases.

FIG. 10 shows a clock 3000b as an example of an indicator. In this case, the clock hands 5 and 5 'are also indicating means for indicating time and indicating the time.

The watch 3000b has a case 4 and a first polarizing means 10 in the form of a plate is provided in the case 4. The first polarizing means 10 includes a back plate And a time or the like is displayed on the front surface thereof to form a display portion, as in the case of FIG.

A third polarizing means (50) in the form of a polarizing plate is provided in the cavity (44) of the case (4) to form a kind of window. On the other hand, a time or the like may be displayed on the third polarizing means 50 constituting the window instead of the first polarizing means 10 which is the background plate.

A second birefringent medium 40 and a second polarizing means 30 are laminated on the back surface of the third polarizing means 50. In this case, the second birefringent medium 40 and the second polarizing means 30 are preferably in the form of film or sheet.

Each of the clock hands 5 and 5 'has a birefringent medium 20a1 and 20a2. For example, the clock hands 5 and 5 'have hollow portions S1 and S2, and birefringent media 20a1 and 20a2 in the form of birefringent films are attached to the respective hollow portions S1 and S2 do.

A clockwise hand driving device 900 for driving the clock hands 5 and 5 'is a driving means for driving the clock hands 5 and 5 as instructing means.

Accordingly, when the hands 5 and 5 'are moved by the hands 88, the birefringent medium 20a1 and 20a2 of the hands 5 and 5 rotate and the window 5' The color of the birefringent medium 20a1 (20a2) changes in the third polarizing means (50) formed.

In this embodiment, a color change occurs as the clock hands 5 and 5 'rotate with time, and a color change occurs as the clock hands 5 and 5' overlap or do not overlap with each other The part changes.

11 shows an example of an indicator 3000c indicating an input value. There are various examples in which an indicator indicating the input value is applied. For example, it is possible to adjust the volume of the speaker in the audio system (when the volume of the speaker is indicated as the dial is turned) The case of adjusting the degree of cooling of the air conditioner (in the case of adjusting the degree of cooling by adjusting the lever moving in the lateral direction to the left and right), and the like.

In such a case, according to the present invention, the color is changed while the volume is indicated by turning the dial, and the color changes as the degree of cooling is indicated as the lever moves in the lateral direction.

11, the indicator 3000c has a case 4, and a front surface of the case 4 is formed with a display unit 60 by displaying numbers, letters, symbols or the like indicating values to be indicated by the indicating means And a cavity portion 44 is formed around the dial 558 in the display portion 60. [ On the other hand, the front face of the case 4 does not necessarily need to display numbers, letters, symbols or the like indicating the value to be indicated by the instruction means.

A third polarizing means 50 is disposed in the case 4 and a second birefringent medium 40 and a second polarizing means 30 are laminated on the back surface of the third polarizing means 50. In this case, the second birefringent medium 40 and the second polarizing means 30 are preferably in the form of film or sheet.

The third polarizing means 50, in which the second birefringent medium 40 and the second polarizing means 30 are laminated, is fixedly installed.

A first birefringent medium 20 is rotatably installed on the rear side of the third polarizing means 30, the second birefringent medium 40 and the second polarizing means 30, The first polarizing means 10 is fixedly provided behind the birefringent medium 20.

A dial 500 is provided in which a groove 85 is formed to enable alignment of the groove 85. Thus, the groove 85 forms the indicating means.

The dial 500 is connected to a first birefringent medium 20 rotatably installed through a connection shaft 5581. The dial 500 is connected to an input sensing device 97 for receiving an input value, do. For example, the input sensing device 97 may comprise a variable resistance circuit for adjusting the volume of the speaker.

In this embodiment, the dial 500 constitutes an indicating means driving means for driving the indicating means 85. [

The dial 500 as the indicating means driving means and the first birefringent medium 20 provided rotatably are connected by a connecting shaft 5581 so that the dial 500 is rotated in conjunction with the movement of the dial 500, The first birefringent medium 20 rotatably installed rotates so that the connecting shaft 5581 forms a relative motion driving device in this embodiment.

Accordingly, when the dial 500 is rotated, the indicating means 85 moves in conjunction with the rotation of the dial 500, and the first birefringent medium 20 is moved in synchronization with the movement of the indicating means 85, The second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50 are relatively rotated.

As a result, a change in color of high saturation is displayed through the third polarizing means 50 exposed through the cavity 44 in the front surface of the case 4 in accordance with the movement of the indicating means 85.

12 is still another embodiment (3000d) of the indicator according to the present invention.

The indicator 3000d has a case 4. The front face of the case 4 is formed with a display unit 60 in which numerals, letters, symbols or the like indicating a value to be designated by the instruction unit are displayed, A cavity portion 44 is formed around a part of the periphery of the dial 500. On the other hand, the front face of the case 4 does not necessarily need to display numbers, letters, symbols or the like indicating the value to be indicated by the instruction means.

The first birefringent medium 20, the second polarizing means 30, the second birefringent medium 40 and the third polarizing means 50 are sequentially arranged in the case 4, The first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, and the second birefringent medium 40 are stacked and attached to each other and fixed.

The third polarizing means 50 is rotatably installed in front of the second birefringent medium 40. In this embodiment, the third polarizing means 50 is disposed on the front side of the second birefringent medium 40, (85).

In this embodiment, the dial 500 is provided as indicating means driving means for driving the indicating means, which is connected to the indicating means 85, which is the third polarizing means 10, via the connecting shaft 5581 And is also connected to the input sensing device 97.

Accordingly, when the dial 500 is rotated, the instruction means 85 is driven to move and make an instruction, and a change in color is displayed on the instruction means 85.

FIG. 13 is a diagram illustrating a color reproduction apparatus according to an embodiment of the present invention. Referring to FIG. 13, all or part of light reflected while reflecting light is illuminated with polarized light reflected by the polarized light reflection, And is applied to the illumination system 4000a.

In this case, first, a light source means 8 for emitting light is provided, a first polarizing means 10 is arranged in front of the light source means 8 and a first birefringent means 10 is arranged in front of the first polarizing means 10, A medium 20 is disposed, a second polarizing means 30 is disposed in front of the medium 20, and a second birefringent medium 40 is disposed in front of the medium.

It is preferable that the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30 and the second birefringent medium 40 are laminated and attached to each other in the form of a film or a sheet.

In this case, the light source unit 8, the first polarizing unit 10, the first birefringent medium 20, the second polarizing unit 30, and the second birefringent medium 40 may be illuminated by illumination means 800a .

In this case, the light source unit 8 preferably comprises a light source 38 and a light guide plate 39 for receiving and emitting the light of the light source 38, thereby forming a surface light source. In this case, it is preferable that the light source 38 of the light source means 8 uses LEDs or cold-cathode fluorescent lamps (CCFL).

At this time, the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30 and the second birefringent medium 40 may be stacked and attached in order on the lower surface of the light source means 8 The first birefringent medium 20, the second polarizing means 30 and the second birefringent medium 40 are disposed between the light source means 8 and the first polarizing means 10, It may be spaced apart.

In this embodiment, the illumination reflector 880a is provided with a polarizing reflector 50a (50a '). The illumination reflector 880a is provided with an illumination reflector 880a for receiving the light emitted from the illumination means 800a. ).

The polarized light reflectors 50a and 50a 'reflect incident light, and the reflected light is all or partially polarized.

For example, a part of the incident light is partially reflected, and the part of the light is reflected by the incident light, the reflection angle, and the refraction angle. Thus, the reflected light forms all or part of the polarized light. The reflection at the same time as the transmission can be the polarizing reflectance 50a.

On the other hand, in the case of the surface of the liquid, the reflection is simultaneously performed with the transmission of the light, and the reflected light becomes polarized, thereby becoming the polarized light reflector 50a according to the present invention. (For example, the water contained in the container or the water flowing down)

The polarized light reflectors 50a, which are various types of sculptures made of glass, acrylic, crystal or plastic, may be installed on the wall of the illumination space S, installed on the floor, installed on the ceiling, You can also install it by hanging it.

It is also possible to attach the polarizing means 50 such as a polarizing film or a sheet to the upper surface of the base member 70 such as a wall or the polarizing plate 50a 'according to the present invention.

The polarized light reflectors 50a and 50a 'may be installed at various positions such as vertical and horizontal in the illumination space S.

In this case, the polarizing beams 50a and 50a 'constitute the third polarizing means according to the present invention.

According to the present invention, the light emitted from the light source means 8 in the illumination means 800a is transmitted through the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30 and the second birefringent medium (50a ') 50a' that emits light into the illumination space (S) through the illumination unit (40) in order to illuminate the illumination reflector (880a) and form the third polarizing means The light reflected by the polarized light reflector 50a 'of the illumination reflector 880a has a different color from the color of the light emitted from the original illuminating means 800a, Is relatively high.

Fig. 14 shows another example (4000b) in which the color producing apparatus according to the present invention is applied to such a polarized light illumination system.

In this case, the illuminating means 800b includes a light source means 8, a first polarizing means 10 disposed in front of the light source means 8, a first birefringent medium 20 disposed in front of the polarizing means 10, ). It is preferable that the first polarizing means 10 and the first birefringent medium 20 are laminated and attached to each other in the form of a film or a sheet.

The first polarizing means 10 and the first birefringent medium 20 may be laminated and attached in order on the lower surface of the light source means 8 but not necessarily the light source means 8 and the first polarizing means 10 and the first birefringent medium 20 may be spaced apart from each other.

According to the present invention, the light emitted from the lighting means 800b maintains white light when the light source means 8 is white light, and such light is emitted into the illumination space S, and there is no visual disturbance at all.

In this embodiment, the illumination reflector 880b is provided with the second polarizing means 30 and the illumination light source 880b, A second birefringent medium 40 disposed on the back side, and polarizing light reflection elements 50b and 50b 'disposed on the back side thereof.

The polarized light reflectors 50b and 50b 'reflect the incident light and the reflected light forms all or part of the polarized light. The polarized light reflectors 50b and 50b' are the same as the polarized light reflectors 50a and 50a ' Polarizing means.

The second polarizing means 30 and the second birefringent medium 40 may be in the form of a film or a sheet so that the polarizing reflectance 50b To form an illumination reflector 880b.

According to the present invention, the light emitted from the light source means 8 in the illuminating means 800b passes through the first polarizing means 10 and the first birefringent medium 20 in turn and is emitted into the illumination space S, The light reflected by the illumination reflector 880b is transmitted through the second polarizing means 30 and the second birefringent medium 40 and is then incident on the polarizing beam splitter 880b, The light reflected by the illumination reflector 880b becomes colored and its saturation and concentration are relatively high.

The present invention also provides a shadow coloring apparatus using polarized light.

A color creation apparatus using polarized light means that the shadow forms a shadow and has a color irrespective of the color of the light source. That is, regardless of the color of the light source, the shadow is colored.

According to a shadow coloring apparatus using such a polarized light, a shadow having a color is provided, and a unique new beauty can be created and used for a display.

15, the apparatus for generating shadows using polarized light comprises a first polarizing means 10, a first birefringent medium 20, a second polarizing means 30 and a second birefringent medium 40 are sequentially arranged so as to allow light to pass therethrough and the first birefringent medium 20, the second birefringent medium 30, and the second birefringent medium 40, which pass through the first polarizing means 10, the second birefringent medium 20, And a polarizing shadow projecting means 700 for projecting the light and reflecting the incident light.

In this case, light emitted from the light source 8 passes through the first polarizing means 10, the first birefringent medium 20, the second polarizing means 30, and the second birefringent medium 40, The shadows projected onto the shadow projection means 700 become colored.

The polarized-shadow projection unit 700 may be formed with a shadow on its surface. The polarized-shadow projection unit 700 may have a polarizing property. The reflected polarized light may have a polarizing property or a partially polarizing property. have.

For example, in the case of a glass plate, a shadow may be formed on the surface, and a part of the incident light may be refracted and transmitted, and part of the incident light may be reflected, and the reflected light may become polarized.

Also, in the case of a surface member made of crystal, acrylic, or a plastic material through which light is transmitted, a shadow is formed, and the incident light is partially refracted and transmitted, and the reflected light is polarized. .

Here, the surface member refers to a member which forms a surface on which light comes in, and the surface at this time is not limited to a plane but may have a curvature. Also, the surface of the liquid such as water may be a polarized shadow projection unit 700 as a shadow is formed and the reflected light is polarized.

According to the present invention, the polarized-shadow projection unit 700 reflects incident light and provides a reflection means 77 capable of forming a shadow on the surface thereof, Means 50 may be provided.

In this case, a shadow is formed in the reflecting means 77, and the incident light is polarized by the third polarizing means 50 to be reflected, thereby being a polarized shadow projection means according to the present invention.

The reflecting means 77 may be of any type capable of forming shadows on its surface, and in many cases, it may be of diffuse reflection, but is not limited thereto.

For example, the reflecting means 77 may be a glass, an acrylic plate, a metal plate, a plastic plate, or the like, or may be formed by plating or applying a metal material to a base member made of synthetic resin, The film may be attached.

The polarizing shadow projection unit 700 may be a polarizing film attached to the reflecting unit 77 as the third polarizing unit 50.

On the other hand, in the case of a regular reflection means such as a mirror, a shadow is formed, and thus it can be the reflecting means 77 according to the present invention. Accordingly, when an image and a shadow overlap each other on a mirror, if the shadow portion has a color according to the present invention, the color of the shadow portion appears on the image. In some cases, images and shadows may appear separately from the reflection means. In such a case, the shadow is formed and the reflection means 77 constituting the polarized shadow projection means 700 is formed.

In this case, a light source 8 is provided so that light of the light source 8 is incident on the first polarizing means 10, The first birefringent medium 20, the second polarizing means 30 and the second birefringent medium 40 and is projected onto the polarizing shadow projection means 700 to form a shadow.

The second polarizing means 30 and the second birefringent medium 40 are attached to each other and attached to the second polarizing means 30 in the case of the shadow color producing device 5000a 5000b using these polarized lights. And the second birefringent medium 40 form a decorative or sine member S.

For example, the mutually attached second polarizing means 30 and the second birefringent medium 40 may be, for example, in the form of a pattern or logo, or in the form of a brand or letter, It can be provided for signs for decoration or information transfer.

In this case, the decorative or sign element S will typically consist of a plurality of elements. For example, a brand may be a collection of logos and individual letters, which may or may not all be part of the logo or the individual letters.

Such a decorative or sincere member S may be placed in a specific space by means of a supporting means such as being suspended from the yarn.

This decorative or sine member S will be the source of the desired primary shadow to form a shadow on the polarizing shadow projection means 700. [ For example, if the decorative or sign member S is a logo, it will form a shadow predominantly in the polarizing shadow projection means 700 in the form of a logo. Here, the term 'primary' refers to a shadow portion formed by the first polarizing means 10 and the first birefringent medium 20, which intentionally excludes the influence thereof and mainly projects the shadow of the decorative or sine member S And the like.

This decorative or sine-shaped element may be formed by the second polarizing means 30 alone or by the second birefringent medium 40 alone.

In the case of FIG. 15A, for example, the second polarizing means 30 is formed of a polarizing plate, and a birefringent film 40 is attached to the back surface thereof.

 In the case of FIG. 15 (b), for example, the second birefringent medium 40 is formed of a birefringent plate, and a polarizing film 30 is attached to the front surface thereof.

As such, if a decorative or sine member S is provided, it can be a single display element. In other words, if a decoration or sine member S in the form of a logo is provided, the logo becomes a display element, and the shadow becomes an element of the display.

15 (a) and 15 (b), the shadow of the decorative or signified member S will be formed as a main shadow on the polarized shadow projection means 700, and this shadow is a path of light from the light source 8 (2).

On the other hand, when the light path (1) is followed by the light source (8), the decorative or sine member (S) becomes colored.

Thus, in the case of the embodiment of FIG. 15, the decorating or sine member S is provided and a shadow is formed on the rear side thereof. In this case, the decorative or sine member S is colored, and the shadow is also colored . (On the other hand, when the decorative or sign member S is viewed between the decorative or sine member S and the polarized shadow projection means 700, the light emitted from the light source 8 is reflected by the first polarizing means 10, The light passing through the medium 20, the second polarizing means 30 and the second birefringent medium 40 is visible. In this case, the decorative or sine member S is colored. In this case, It will be different from ①.

According to the present invention, the first birefringent medium 20 can be moved in FIGS. 15A and 15B, and can be connected to a power means such as a motor to perform rotational motion. In this case, both the color of the shadow of the decorative or sine member S projected onto the polarized shadow projection means 700 and the color of the decorative or sine member S itself change.

Meanwhile, the sine member S can be connected to the power means to perform a rotation or the like. In this case, both the color of the shadow and the color of the decorative member or the sine member S itself are changed.

As described above, the present invention can make a shadow to have a color using polarized light. In this case, the shadow can be formed mainly of the decorative or sine member and can cause a change in the color.

As described above, the present invention provides a color creation device capable of creating a high saturation color using polarized light. The color producing apparatus according to the present invention has a very simple structure and can have a higher saturation than a conventional color producing apparatus using polarized light. The fact that the color of high saturation can be obtained as the structure of the present invention means that Is not predicted from the conventional idea that the birefringent medium is arranged in the light and the light passing through them has a color.

The color creating apparatus according to the present invention can make a signboard such as a signboard have a high color saturation and can also be installed as a design element or a brand element on the exterior of a product to create a high color saturation design , Can be applied to a color conversion device to produce a color conversion with a high saturation, and can be applied to an indicator to produce a high color saturation change according to a change in an indication value. In addition, The light reflected from the object can have a high saturation color.

The present invention also allows shadows to create colors, in which case the shadows can be made primarily of decorative or sign elements, with shadow or decorative elements being the elements of the display.

It will be understood that the objects of the present invention are achieved thereby. Although the present invention has been described with reference to the embodiment, the scope of the present invention is not limited thereto and the scope of the present invention is defined by the following claims.

10: first polarizing means
20: first birefringence medium
30: second polarizing means
40: second birefringent medium
50: third polarizing means

Claims (24)

(a) a first polarizing means;
(b) a first birefringent medium;
(c) second polarizing means;
(d) a second birefringent medium; And
(e) a third polarizing means,
(f) the first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium and the third polarizing means are arranged so that light from a light source emitting white light can sequentially pass therethrough Wherein the first birefringent medium and the second birefringent medium emit different polarizing directions depending on wavelengths when the polarized light is incident on the first birefringent medium and the second birefringent medium, Wherein light passing through the second polarizing means, the second birefringent medium, and the third polarizing means in succession is colored. The method according to claim 1,
Wherein the first and second birefringent media are in the form of a film, sheet, or plate. The method according to claim 1,
The first polarizing means, the first birefringent medium, the second polarizing means, the second birefringent medium and the third polarizing means are attached to each other, all of them are spaced apart, Wherein the polarizing beam splitter is a polarizing beam splitter. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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