JP3967145B2 - Projector device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a projector device having a visible light source that converts blue to ultraviolet light into visible light.
[0002]
[Prior art]
In recent years, a liquid crystal display device using a liquid crystal screen has been rapidly spread, and a liquid crystal projector is known as one of the liquid crystal display devices. A liquid crystal projector displays an image separated into three primary colors of red, green, and blue on a liquid crystal panel, and superimposes the transmitted light so that a predetermined image is displayed on the screen. The video is displayed. The light source used for this is usually required to have a luminous intensity of about several thousand lumens, and a metal hydrolamp, which is an example of a gas light source, is usually used as the light source.
[0003]
[Problems to be solved by the invention]
However, a gas light source typified by a metal hydrolamp can obtain a high luminous intensity, but since the light emitter is a vacuum tube having electrodes, it does not become a point light source and therefore has low light convergence. In addition, the metal hydrolamp has a problem that it has a short life, a large amount of heat generation, and a large amount of power consumption. On the other hand, Japanese Patent Laid-Open No. 2-118624 proposes an apparatus in which a projector unit and a light source unit are separated. However, although the apparatus is downsized in the projector unit, the projector apparatus as a whole is large in size and has a large amount of heat generation and power consumption as before.
[0004]
The present invention has been made in view of the above-described problems, and an object thereof is to provide a projector device that is miniaturized by improving the convergence of light source light.
[0005]
A further object of the present invention is to provide a projector device that has a long life and has reduced heat generation and power consumption.
[0010]
[Means for Solving the Problems]
  A projector device according to a first aspect of the present invention includes:Semiconductor laser or LED ( Light Emitting Diode ) Including light with a wavelength of 500 nm or lessA solid-state light source that emits light, irradiation light emitted from the solid-state light source is irradiated, the wavelength of the emitted light is converted, and red light is emitted, and red light is emitted, and emission light emitted from the solid-state light source is irradiated The green visible wavelength down-converting material that emits green light by converting the wavelength of the emitted light and the emitted light emitted from the solid light source are irradiated, the wavelength of the emitted light is converted, and blue light is emitted. A visible wavelength downward conversion material for blue, and an image creation mechanism for creating an arbitrary image by combining three colors of light of red light, green light, and blue light.
[0011]
According to said structure, the visible light source device can be reduced in size compared with the case where the gas light source with the low convergence property of light source light is used by improving the convergence property of light source light using a solid light source. .
[0012]
  The projector device according to the first aspect of the present invention includes a visible wavelength downward conversion material for red, a visible wavelength downward conversion material for green, and a visible wavelength downward conversion material for blue.RespectivelyIs provided in the core of the optical fiber.
[0013]
  According to the above configuration, red light, green light and blue lightRespectivelyCan be transmitted by an optical fiber, so that the degree of freedom in designing the projector device can be increased.
[0014]
  First of the present invention1The solid state light source emits light to the visible wavelength down-converting material for red, the solid-state light source for green emitting the light to the visible-wavelength down converting material for green, and the visible wavelength down-converting material for blue And a solid light source for blue which emits light.
[0015]
  According to the above configuration,Semiconductor laser or LED ( Light Emitting Diode ) And emits light with a wavelength of 500 nm or lessEach solid state light source can be controlled separately.
  In the projector device according to the first aspect of the present invention, the solid-state light source is a single solid-state light source, and includes a spectroscopic mechanism that divides light emitted from one solid-state light source into three. Each of the two lights may be applied to the red visible wavelength down-converting material, the green visible wavelength down-converting material, and the blue visible wavelength down-converting material in a one-to-one correspondence.
[0016]
  According to said structure, a solid light source can be collected into one.
  A projector device according to a second aspect of the present invention provides:Semiconductor laser or LED ( Light Emitting Diode ) Including and below the wavelength of green lightA solid-state light source that emits light, a visible wavelength down-converting material for red that emits red light by being irradiated with emission light emitted from the solid-state light source, and emission light emitted from the solid-state light source , A visible wavelength down-converting material for green that emits green light by converting the wavelength of the emitted light, a solid light source for blue that emits blue light, red light, green light, and blue light 3 And an image creation mechanism for creating an arbitrary image by combining color lights.
  The aforementioned solid light source may emit light having a wavelength of 500 nm or less.
[0017]
According to said structure, compared with the case where the gas light source with the low convergence property of light source light is used, a projector apparatus can be reduced in size by improving the light convergence property of a solid light source.
[0018]
  The projector device according to the second aspect of the present invention includes a visible wavelength down-converting material for red and a visible wavelength down-converting material for green.RespectivelyIs provided in the core of the optical fiber.
[0019]
  According to the above configuration, red light and green lightEach ofTherefore, the degree of freedom in designing the visible light source device can be increased.
[0021]
According to the above configuration, by using a semiconductor laser as a solid-state light source, the lifetime of the visible light source device is longer than that of a gas light source such as a conventional metal halide lamp, and the amount of heat generated and consumed by the visible light source device. Electric power can be reduced.
[0023]
According to the above configuration, by using a semiconductor laser as a solid-state light source, the projector device has a longer life than a conventional gas light source such as a metal halide lamp, and the heat generation amount and power consumption of the projector device are reduced. be able to.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0025]
(Embodiment 1)
FIG. 1 shows a schematic configuration of the visible light source device of the present embodiment. As shown in FIG. 1, the visible light source device of the present embodiment includes a semiconductor laser 10 that emits blue light as an excitation solid-state light source, and guides the light emitted from the semiconductor laser 10 to an optical fiber. Longer wavelength than the wavelength of the light emitted from the collimating lens 11, the optical fiber 12 having a core doped with a visible wavelength down-converting material that converts the wavelength of light so as to be visible, and the pumping semiconductor laser 10. And a wavelength filter 13 that transmits only the light.
[0026]
In such a visible light source device of this embodiment, light emitted from the semiconductor laser 10 is guided to the optical fiber 12 by the collimator lens 11. The light guided to the optical fiber 12 excites the visible wavelength down-conversion material doped in the core, and is converted into visible light by the excited visible wavelength down-conversion material. The light is emitted from the optical fiber 12. The excitation light that is not wavelength-converted to visible light is cut by the wavelength filter 13.
[0027]
FIG. 2 shows a schematic diagram of a liquid crystal projector apparatus using the optical fiber. The liquid crystal projector device according to the present embodiment includes three semiconductor lasers 20 each having a wavelength of 405 nm and three collimating lenses 21 through which light emitted from the semiconductor lasers 20 is transmitted.
[0028]
The light transmitted through each of the three collimating lenses is doped with an optical fiber 22 having a core doped with a wavelength down-converting material that converts the excitation light into blue, and with a wavelength down-converting material that converts the excitation light into green. It is introduced into each of an optical fiber 23 having a core and an optical fiber 24 having a core doped with a wavelength down-converting material that converts excitation light into red.
[0029]
A wavelength filter 25 that transmits light having a wavelength longer than the wavelength of the light emitted from the pumping semiconductor laser 20, and the optical fiber 22, 23, and 24 that are wavelength-converted by the wavelength down-converting material inside each of the optical fibers 22, 23, and 24. The light emitted from 22, 23 and 24 passes through the condenser lens 26 for guiding the light to the liquid crystal panel, the liquid crystal panels 27, 28 and 29, and the projection lens 30, respectively, and reaches the screen 31. An arbitrary image is displayed on the screen 31 by appropriately combining the three primary colors of red, green, and blue in the liquid crystal panels 27, 28, and 29.
[0030]
The driving power of the liquid crystal projector of the present embodiment is 100 W, which is 1/10 of the driving power of a liquid crystal projector using a current metal hydrolamp. In addition, the lifetime of the visible light source device is 10,000 hours, and the size of the liquid crystal projector is 1/3 of the conventional size. The liquid crystal projector is realized with low power consumption, long life, and downsizing.
[0031]
The wavelength of the excitation semiconductor laser 20 is 405 nm. However, the wavelength is not limited to this, and the above-described effect can be obtained by using a laser or LED having a wavelength of 500 nm or less.
[0032]
If the excitation light emitted from the semiconductor laser 20 has a wavelength longer than 500 nm, blue light cannot be obtained, so that a full-color image cannot be displayed on the liquid crystal display device.
[0033]
Further, if the laser light emitted from the pumping semiconductor laser 20 is reflected by the collimator lens 21 or the like and enters the pumping semiconductor laser 20 as return light, problems such as noise may occur. Therefore, it is necessary to take countermeasures against return light such as tilting the lens and appropriately take measures against noise caused by interference between the outgoing light and the return light.
[0034]
In addition, the liquid crystal projector in this embodiment uses three pumping semiconductor lasers corresponding to the respective colors in order to form the three colors of red, green, and blue constituting the three primary colors of light. Using one or two excitation lasers, the excitation light emitted from one excitation laser is split into three or two lights by a half mirror or the like, and red, green, and light constituting the three primary colors of light, It may be one that creates three lights to form the three colors of blue. The liquid crystal projector may be an array of three or more excitation semiconductor lasers.
[0035]
(Embodiment 2)
FIG. 3 shows a schematic diagram of the liquid crystal projector device of the present embodiment. The liquid crystal projector of the present embodiment includes a semiconductor laser 40 that emits blue light having a wavelength of 365 nm, a collimating lens 41 that guides the blue laser light emitted from the semiconductor laser 40 in a predetermined direction, and a collimating lens 41. Two half mirrors 42 for branching the transmitted excitation light into three and a mirror 47 for reflecting the excitation light transmitted through the collimating lens 41 are provided.
[0036]
Each of the light reflected by the two half mirrors 42 and 47 includes a wavelength down-converting phosphor 43 that converts the excitation light into blue, a wavelength down-conversion phosphor 44 that converts the excitation light into green, and the excitation light. The light is incident on the wavelength down-converting phosphor 45 that converts to red. The three lights that have been wavelength-converted and emitted from the wavelength down-converting phosphors 43, 44, and 45 pass through the notch filter 46 that transmits wavelengths other than the light emitted from the pumping semiconductor laser 40.
[0037]
Of the three lights, the two lights on the left and right sides are reflected by the mirror 47, and the central one light is directly guided to the liquid crystal panels 48, 49, and 50, respectively. The light transmitted through each of the liquid crystal panels 48, 49, 50 is guided to the screen 53 from the light projection lens 52 through the dichroic prism 51. In the liquid crystal panels 48, 49, and 50, an arbitrary image is displayed on the screen 53 by appropriately combining the three primary colors of red, green, and blue.
[0038]
The driving power of the projector according to the present embodiment is 75 W, which is 1/4 of the driving power of a liquid crystal projector using a current metal hydrolamp. In addition, the life of the light source is 10,000 hours, and the size of the liquid crystal projector is 1/5 of the conventional size, and the liquid crystal projector realizes low power consumption, long life, and miniaturization.
[0039]
In the liquid crystal projector according to the present embodiment, 365 nm is used as the wavelength of the semiconductor laser for excitation, but the wavelength is not limited to this, and a laser or LED having a wavelength of 500 nm or less may be used.
[0040]
Note that when the excitation light emitted from the semiconductor laser 40 has a wavelength longer than 500 nm, blue light cannot be obtained, and thus a full-color image cannot be displayed on the liquid crystal display device.
[0041]
Further, in the liquid crystal projector of the present embodiment, one excitation semiconductor laser is used, but the above-described effects can be similarly obtained even when two or more excitation semiconductor lasers are used.
[0042]
In short, according to the liquid crystal projector of the first or second embodiment, the three primary colors of red, green, and blue light are obtained by irradiating the visible light wavelength down-converting material with a solid light source having a wavelength of 500 nm or less, and Since a semiconductor laser or semiconductor LED is used as the solid light source, the light source becomes a point light source, so that the light focusing property is good, the size of the liquid crystal projector device can be reduced, the life is long, and the heat generation amount , Power consumption can be reduced.
[0043]
(Embodiment 3)
FIG. 4 shows a schematic diagram of the liquid crystal projector device of the present embodiment. The liquid crystal projector device of this embodiment includes one semiconductor LED 60 that emits blue light having a wavelength of 460 nm and two semiconductor lasers 61 that emit blue light having a wavelength of 405 nm. In addition, a collimator lens 63 that guides light emitted from one semiconductor LED and a concave mirror 64 that reflects light transmitted through the collimator lens 63 are provided.
[0044]
Also, two optical fibers 62 for guiding the light emitted from the two semiconductor lasers 61, and a wavelength down-converting phosphor 65 for converting the excitation light to which each of the light emitted from the two optical fibers 62 is incident into green. And a wavelength down-converting phosphor 66 for converting excitation light into red.
[0045]
Further, two wavelength filters 67 that transmit light having a wavelength longer than the wavelength of the semiconductor laser 61 for excitation light reflected by the concave mirror 64 and a mirror 68 that reflects light transmitted through the collimator lens 63 are provided. In addition, liquid crystal panels 69, 70, and 71 on which light transmitted through the wavelength filter 67 and light reflected by the mirror 68 are incident are provided.
[0046]
The light emitted from the liquid crystal panels 69, 70, 71 is guided from the light projection lens 73 to the screen 74 via the dichroic prism 72. On the screen 74, an arbitrary image is displayed by appropriately combining the three primary colors of red, green, and blue in the liquid crystal panels 69, 70, and 71.
[0047]
The drive power of the projector according to the present embodiment is 80 W, which is ¼ of the drive power of a liquid crystal projector using a current metal hydrolamp. In addition, the lifetime of the visible light source is 10,000 hours, and the size of the liquid crystal projector is 1/3 of the conventional size, and the liquid crystal projector has realized low power consumption, long life, and downsizing.
[0048]
In addition, although 405 nm was used as the wavelength of the semiconductor laser for excitation, the wavelength is not limited to this, and if the semiconductor laser or the semiconductor LED has a wavelength of 500 nm or less, the above-described effects can be obtained in the same manner. it can.
[0049]
If the excitation light has a wavelength longer than 500 nm, blue light cannot be obtained, so that a full color image cannot be displayed on the liquid crystal projector.
[0050]
Further, in the liquid crystal projector of the present embodiment, two pumping semiconductor lasers are used, but the above-described effect can be obtained in the same manner even if light emitted from one laser is branched into three or more. Even if three or more semiconductor lasers for excitation are used, the above-described effects can be obtained similarly.
[0051]
(Embodiment 4)
FIG. 5 shows a schematic diagram of the liquid crystal projector device of the present embodiment. The liquid crystal projector device of the present embodiment includes an excitation semiconductor laser 80 that emits blue light having a wavelength of 405 nm, a collimator lens 81 that guides blue light emitted from the semiconductor laser 80, and the color of light that has passed through the collimator lens 81. And a color wheel 82 for separating the two.
[0052]
In addition, a notch filter 86 that transmits light of a predetermined wavelength out of light emitted from the excitation semiconductor laser 80 that has passed through the color wheel 82, a condensing lens 83 that collects light transmitted through the notch filter 86, and a condensing lens DMD (Digital Micromirror Device) 84 that reflects the light transmitted through 83 and a screen 85 on which the light reflected by DMD 84 is projected.
[0053]
Further, a color wheel 82 is shown in an enlarged view on the left side of the figure, and the color wheel 82 includes a wavelength down-converting phosphor 90 that converts excitation light into blue, and a wavelength down-conversion phosphor that converts excitation light into green. 91 and a wavelength down-converting phosphor 92 that converts excitation light into red are incorporated, and the wavelength-down-converting phosphors 90, 91, and 92 are respectively rotated by the rotation of the color wheel 82. The laser light emitted from 80 is converted into red, green, and blue and emitted. An arbitrary color image is displayed on the screen 85 by combining three colors of red, blue, and green according to the rotation mode of the color wheel.
[0054]
The driving power of the projector device according to the present embodiment is 80 W, which is ¼ that of a projector using a current metal hydrolamp. Further, the lifetime of the light source is 10,000 hours, and the size of the apparatus is also reduced to 1/3 compared with the conventional one. As a result, according to the projector device of the present embodiment, low power consumption, long life, and downsizing can be realized.
[0055]
In addition, although 405 nm was used for the excitation semiconductor laser, the wavelength is not limited to this, and a laser or LED having a wavelength of 500 nm or less may be used. When the excitation light has a wavelength longer than 500 nm, blue light cannot be obtained, and thus a full color image cannot be displayed in the liquid crystal projector.
[0056]
(Embodiment 5)
FIG. 6 is a schematic diagram of the liquid crystal projector device of the present embodiment. The liquid crystal projector device of the present embodiment includes a semiconductor laser 100 that emits blue light having a wavelength of 405 nm, a collimator lens 101 that transmits light emitted from the semiconductor laser 100, and a plurality of light that branches light that has passed through the collimator lens 101. The half mirror 102 and the mirror 114 that reflects the light transmitted through the collimator lens 101 are provided.
[0057]
Further, each of the light branched by the plurality of half mirrors 102 and the light reflected by the mirror 114 includes a wavelength down-converting phosphor 103 that converts the excitation light into blue, and a wavelength down-conversion phosphor 104 that converts the excitation light into green. , And the wavelength down-converting phosphor 105 that converts the excitation light to red. The light wavelength-converted by the wavelength down-converting phosphors 103, 104, and 105 is reflected by the reflective liquid crystal panels 106, 107, and 108, passes through the polarization beam splitters 109, 110, and 111, and the dichroic prism 112, respectively. It is projected on the screen 113. On the screen 113, an arbitrary image is displayed by appropriately combining the three primary colors of red, green, and blue in the liquid crystal panels 106, 107, and 108.
[0058]
The driving power of the liquid crystal projector device of the present embodiment is 100 W, which is 1/3 that of a liquid crystal projector using a current metal hydrolamp. In addition, the life of the light source is 10,000 hours, and the size of the device is 1/3 of that of the conventional device, so that low power consumption, long life, and downsizing can be realized.
[0059]
It is also possible to use DMD instead of the reflective liquid crystal panels 106, 107, and 108. In that case, it is necessary to replace the polarization beam splitters 109, 110, and 111 with total reflection prisms.
[0060]
(Embodiment 6)
FIG. 7 shows a schematic diagram of the liquid crystal projector device of the present embodiment. The liquid crystal projector according to the present embodiment includes one semiconductor laser 120 that emits blue light having a wavelength of 455 nm and two semiconductor lasers 121 that emit blue light having a wavelength of 395 nm. The light emitted from each of the semiconductor lasers 120 and 121 passes through the collimator lens 122 and is guided to the three optical fibers.
[0061]
These three optical fibers are doped with a normal optical fiber 123, an optical fiber 124 having a core doped with a wavelength down-converting material that converts pump light into green, and a wavelength down-converting material that converts pump light into red. And an optical fiber 133 having a formed core.
[0062]
The light incident on the optical fiber 123 is emitted as it is, and the wavelength-converted and emitted light incident on the optical fibers 124 and 133 transmits light having a wavelength longer than that of the excitation semiconductor lasers 124 and 133. The light passes through the filter 126 and is guided to the condensing lens 125 that leads to the liquid crystal panel. The light transmitted through the condenser lens 125 is projected onto the screen 132 via the liquid crystal panels 127, 128, 129, the dichroic prism 130, and the light projecting lens 131. On the screen 132, an arbitrary image is displayed by appropriately combining the three primary colors of red, green, and blue in the liquid crystal panels 127, 128, and 129.
[0063]
The driving power of the liquid crystal projector device of the present embodiment is 120 W, which is 1/3 that of a liquid crystal projector using a current metal hydrolamp. Moreover, the lifetime of the light source is 10,000 hours, and the size of the liquid crystal projector device is 1/3 of the conventional size. Therefore, according to the liquid crystal projector device of the present embodiment, low power consumption, long life, and miniaturization are realized.
[0064]
Although a semiconductor laser is used for the blue light source, the light source is not limited to this, and a semiconductor LED may be used.
[0065]
Further, although the excitation semiconductor laser uses 395 nm, the wavelength is not limited to this, and a laser or LED having a wavelength of 500 nm or less may be used. When the excitation light emitted from the semiconductor lasers 120 and 121 has a wavelength longer than 500 nm, it becomes impossible to obtain blue light, and thus it becomes impossible to display a full color image on the liquid crystal projector.
[0066]
In the projectors of the first to sixth embodiments, a solid light source that emits blue light is used. However, any color such as red, green, or transparent color may be used.
[0067]
Further, in the projectors of the first to sixth embodiments, the case where a plurality of types of wavelength down-converting materials are used for converting a plurality of colors has been shown, but any one of red, green, and blue is converted. One type may be used.
[0068]
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
[0069]
【The invention's effect】
According to the present invention, the projector device can be downsized by using a solid light source to improve the convergence of the light source light, as compared with the case where a gas light source having a low light source light convergence is used.
[Brief description of the drawings]
FIG. 1 is a schematic diagram illustrating a visible light source device according to a first embodiment.
FIG. 2 is a schematic diagram showing the liquid crystal projector device of the first embodiment.
FIG. 3 is a schematic diagram illustrating a liquid crystal projector device according to a second embodiment.
FIG. 4 is a schematic diagram illustrating a liquid crystal projector device according to a third embodiment.
FIG. 5 is a schematic diagram showing a liquid crystal projector device according to a fourth embodiment.
FIG. 6 is a schematic diagram showing a liquid crystal projector device according to a fifth embodiment.
FIG. 7 is a schematic diagram showing a liquid crystal projector device according to a sixth embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Semiconductor laser, 11 Collimating lens, 12 Optical fiber which has core doped with visible wavelength down conversion material, 13 Wavelength filter, 20 Semiconductor laser, 21 Collimating lens, 22 Doping wavelength down conversion material which converts excitation light into blue 23, an optical fiber having a core doped with a wavelength down-converting material that converts excitation light into green, and 24 an optical fiber having a core doped with a wavelength down-converting material that converts excitation light into red Fiber, 25 wavelength filter, 26 Condensing lens, 27, 28, 29 Liquid crystal panel, 30 Projection lens, 31 Screen, 40 Semiconductor laser, 41 Collimating lens, 42 Half mirror, 43 Down wavelength conversion that converts excitation light into blue Phosphor, 44 Converts excitation light to green Wavelength down-conversion phosphor, 45 Wavelength down-conversion phosphor that converts excitation light to red, 46 Notch filter, 47 Mirror, 48, 49, 50 Liquid crystal panel, 51 Dichroic prism, 52 Projection lens, 53 Screen, 60 LED , 61 Semiconductor laser, 62 optical fiber, 63 collimating lens, 64 concave mirror, 65 wavelength down-converting phosphor that converts excitation light to green, 66 wavelength down-conversion phosphor that converts excitation light to red, 67 wavelength filter, 68 mirror 69, 70, 71 LCD panel, 72 Dichroic prism, 73 Projection lens, 74 screen, 80 Semiconductor laser, 81 Collimate lens, 82 Color wheel, 83 Condensing lens, 84 DMD, 85 screen, 90 Excitation light blue Wavelength down-converting phosphor, which converts to 91 wavelength down-converting phosphor that converts excitation light into green, 92 wavelength down-conversion phosphor that converts excitation light into red, 100 semiconductor laser, 101 collimating lens, 102 half mirror, 103 wavelength below that converts excitation light into blue Conversion phosphor, 104 Wavelength down-conversion phosphor that converts excitation light into green, 105 Wavelength down-conversion phosphor that converts excitation light into red, 106, 107, 108 Reflective liquid crystal panel, 109, 110, 111 Polarizing beam splitter 112 dichroic prism, 113 screen, 114 mirror, 120 semiconductor laser, 121 semiconductor laser, 122 collimating lens, 123 optical fiber, 124 optical fiber having a core doped with a wavelength down-converting material that converts excitation light into green, 125 Condenser lens, 126 waves Long filter, 127, 128, 129 liquid crystal panel, 130 dichroic prism, 131 projector lens, 132 screen, 133 Optical fiber having a core doped with a wavelength down-converting material that converts excitation light into red.

Claims (5)

A solid-state light source including a semiconductor laser or an LED (Light Emitting Diode) and emitting light having a wavelength of 500 nm or less;
A visible wavelength downward conversion material for red that is irradiated with emission light emitted from the solid-state light source, the wavelength of the emission light is converted, and red light is emitted;
Visible wavelength downward conversion material for green that is irradiated with emission light emitted from the solid light source, the wavelength of the emission light is converted, and green light is emitted;
A visible wavelength downward conversion material for blue that is irradiated with emission light emitted from the solid light source, the wavelength of the emission light is converted, and blue light is emitted;
An image creation mechanism that creates an arbitrary image by combining the red light, the green light, and the blue light;
The red visible wavelength down conversion material, each of the green visible wavelength down conversion material and the blue visible wavelength down conversion material is provided in the core of the optical fiber, the projector device.   The solid light source includes a red solid light source that emits light to the red visible wavelength down-converting material, a green solid light source that emits light to the green visible wavelength down-converting material, and a light to the blue visible wavelength down-converting material. The projector device according to claim 1, further comprising a blue solid light source that emits light. The solid state light source is one solid state light source;
A spectroscopic mechanism for splitting light emitted from the one solid-state light source into three;
Each of the three lights dispersed by the spectroscopic mechanism is irradiated in a one-to-one correspondence with the red visible wavelength down-converting material, the green visible wavelength down-converting material, and the blue visible wavelength down-converting material. Item 2. The projector device according to Item 1. A solid-state light source that includes a semiconductor laser or LED (Light Emitting Diode) and emits light having a wavelength equal to or less than the wavelength of green light;
A visible wavelength downward conversion material for red that is irradiated with emission light emitted from the solid-state light source, the wavelength of the emission light is converted, and red light is emitted;
Visible wavelength downward conversion material for green that is irradiated with emission light emitted from the solid light source, the wavelength of the emission light is converted, and green light is emitted;
A solid light source for blue light emitting blue light;
An image creation mechanism that creates an arbitrary image by combining the red light, the green light, and the blue light;
The projector device in which each of the visible wavelength down-converting material for red and the visible wavelength down-converting material for green is provided in an optical fiber core. The solid-state light source emits light below a wavelength of 500 nm, the projector device according to claim 4.

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