TWI809973B - Illumination system of projector - Google Patents

Abstract

A illumination system for a projector includes a light engine module, a light source module, a reflection mirror, a beam splitter, a phosphor wheel, and a lens assembly. The light source module is configured to emit blue light along a first direction. The reflection mirror is configured to reflect the blue light such that the blue light transmits in a second direction. A blue light transmissive region of the beam splitter is configured to allow the blue light to pass through. A reflective region of the phosphor wheel is configured to reflect a first portion of the blue light, and a first wavelength conversion region of the phosphor wheel is configured to activate a second portion of the blue light to form first band light. The lens assembly is configured to refract the blue light that transmits in the second direction to the phosphor wheel, to refract the first portion of the blue light to a reflective region of the beam splitter in a third direction, and to allow the first band light to pass through. The reflective region of the beam splitter is configured to reflect the first portion of the blue light and the first band light to the light engine module along the first direction.

Description

projector lighting system

The present disclosure relates to a projector lighting system.

In the current projector market, there are more and more projectors with different designs, such as slim projectors, ultra-short-throw projectors, and portable miniature projectors. The light source module, lens, reflector, beam splitter, optical engine module, heat sink, etc. can be installed in the casing of the projector, and the arrangement of these components will not only affect the optical path, but also affect the space configuration in the casing. Thus, the outer shape of the casing is limited.

In the lighting system of the current laser projector, the light emitted by the light source module will first be reflected to the fluorescent color wheel by the reflection area of the beam splitter, and then the light will go to the optical machine after being reflected and excited by the fluorescent color wheel. The direction of the module is transmitted, so it is not easy to use in a slim projection system. In addition, since the light output direction of the light source module is not parallel to the light receiving direction of the optical engine module, it is easy to cause deviations in the optical path angle of the product during the manufacturing process, thereby affecting the light efficiency.

One technical aspect of the present disclosure is a projector lighting system.

According to some embodiments of the present disclosure, a projector lighting system includes an optical-mechanical module, a light source module, a reflector, a first beam splitter, a fluorescent color wheel, and a lens group. The direction from the light source module to the optomechanical module defines a first direction. The light source module is configured to emit blue light along the first direction. The reflecting mirror is configured to reflect the blue light so that the blue light passes to the second direction. The first beam splitter has a blue light penetrating area and a reflecting area. The blue light penetrating area is configured for the blue light transmitted in the second direction to pass through. The fluorescent color wheel has a reflection area and a first wavelength conversion area. The reflective region of the fluorescent color wheel is configured to reflect the first portion of the blue light. The first wavelength conversion region is configured to excite the second part of the blue light to form light in the first wavelength band. The lens group is located between the first beam splitter and the fluorescent color wheel. The lens group is configured to refract the blue light transmitted in the second direction to the fluorescent color wheel, and refract the first part of the blue light to the reflection area of the first beam splitter in a third direction opposite to the second direction, and provide the first wavelength band light through. The reflection area of the first beam splitter is configured to reflect the first part of the blue light and the light of the first wavelength band to the optical engine module along the first direction.

In some embodiments, the reflector is located between the light source module and the first beam splitter.

In some embodiments, the reflector is perpendicular to the first beam splitter.

In some embodiments, the above-mentioned first beam splitter is located between the mirror and the optomechanical module.

In some embodiments, the projector lighting system further includes a beam shrinking module. The beam shrinking module is located between the light source module and the reflector.

In some embodiments, the above-mentioned projector lighting system further includes a condensing module. The light-condensing module is located between the first beam splitter and the optical-mechanical module.

In some embodiments, the reflection area of the fluorescent color wheel is a mirror surface.

In some embodiments, the material of the reflective area of the fluorescent color wheel includes silver, white glue or titanium dioxide (TiO ₂ ).

In some embodiments, the first wavelength conversion region of the fluorescent color wheel includes yellow phosphor.

In some embodiments, the fluorescent color wheel further includes a second wavelength conversion region. The second wavelength conversion region is configured to excite the third part of the blue light to form light of the second wavelength band.

In some embodiments, the second wavelength conversion region of the fluorescent color wheel includes green phosphor.

In some embodiments, the fluorescent color wheel further includes a third wavelength conversion region configured to excite the fourth part of the blue light to form light of the third wavelength band.

In some embodiments, the third wavelength conversion region of the fluorescent color wheel includes red phosphor.

In some embodiments, the fluorescent color wheel further includes a second wavelength conversion region, and the first wavelength conversion region and the second wavelength conversion region include red phosphor and green phosphor, respectively.

In some embodiments, the above-mentioned projector lighting system further includes a second beam splitter. The second beam splitter is located between the first beam splitter and the lens group, the second beam splitter is configured to reflect the first part of the blue light and pass through the first wavelength band light Pass.

In the above embodiments of the present disclosure, since the light source module emits blue light along the first direction, the blue light is reflected by the reflector and passes through the blue light penetrating area of the first beam splitter so that the first part of the blue light can pass through the reflection area of the fluorescent color wheel Reflection, the second part of the blue light can be excited by the first wavelength conversion region of the fluorescent color wheel to form the first wavelength band light, and the reflection region of the first beam splitter can convert the first part of the blue light and the first wavelength band light along the first direction It is reflected to the optical-mechanical module, so the light-emitting direction of the light source module is consistent with the light-receiving direction of the optical-mechanical module (both are the first direction), forming a T-shaped optical path. Such a configuration is applicable to a slim projection system. In addition, since the light output direction of the light source module is the same as the light receiving direction of the optical engine module, deviations in the optical path angle of the product can be avoided during the manufacturing process, thereby improving light efficiency.

Another technical aspect of the present disclosure is a projector lighting system.

According to some embodiments of the present disclosure, a lighting system for a projector includes an optomechanical module, a light source module, a first reflector, a first beam splitter, a fluorescent color wheel, a second reflector, and a lens group. The direction from the light source module to the light engine module defines a first direction. The light source module is configured to emit blue light along the first direction. The first reflector is configured to reflect the blue light so that the blue light passes to the second direction. The first beam splitter is configured to allow the blue light transmitted in the second direction to pass through. The fluorescent color wheel has a reflection area and a first wavelength conversion area. The reflective area of the fluorescent color wheel is configured to reflect the first part of the blue light, and the first wavelength conversion area is configured to excite the second part of the blue light to form light of the first wavelength band. The second mirror is connected to one end of the first beam splitter. The lens group is located between the first beam splitter and the fluorescent color wheel. The lens group is configured to refract the blue light transmitted in the second direction to the fluorescent color wheel, and to The first part of the blue light is refracted to the second reflector in a third direction opposite to the second direction, and passes through the light of the first wavelength band. The second reflector is configured to reflect the first part of the blue light and the light of the first wavelength band to the optical-mechanical module along the first direction.

In some embodiments, the above-mentioned second reflector extends from the end of the first beam splitter along the length direction of the first beam splitter.

In some embodiments, the above-mentioned first reflector is perpendicular to the second reflector.

In some embodiments, the above-mentioned projector lighting system further includes a second beam splitter. The second beam splitter is located between the second reflection mirror and the lens group. The second beam splitter is configured to reflect the first part of the blue light and pass the light of the first wavelength band.

In some embodiments, the reflective area of the fluorescent color wheel is a mirror surface, and the first wavelength conversion area of the fluorescent color wheel includes yellow phosphor.

In the above embodiments of the present disclosure, since the light source module emits blue light along the first direction, the blue light is reflected by the first reflector and passes through the first beam splitter so that the first part of the blue light can be reflected by the reflection area of the fluorescent color wheel, and the blue light The second part of the blue light can be excited by the first wavelength conversion region of the fluorescent color wheel to form the first wavelength band light, and the second reflector can reflect the first part of the blue light and the first wavelength band light to the optomechanical module along the first direction , so the light output direction of the light source module is consistent with the light receiving direction of the optical engine module (both are the first direction), forming a T-shaped optical path. Such a configuration is applicable to a slim projection system. In addition, since the light output direction of the light source module is the same as the light receiving direction of the optical engine module, deviations in the optical path angle of the product can be avoided during the manufacturing process, thereby improving light efficiency.

100, 100a, 100b, 100c: projector lighting system

105: Optomechanical module

110:Light source module

120: Mirror

120a: first reflector

120b: second reflector

130: the first beam splitter

130a: the second beam splitter

132: Blue light penetration zone

134: reflection area

140, 140a, 140b, 140c: fluorescent color wheel

142: Reflection area

144: The first wavelength conversion region

146: Second wavelength conversion region

148: The third wavelength conversion region

150: lens group

160:Beam reducer module

170,170a: Spotlight module

D1: the first direction

D2: Second direction

D3: Third direction

L: Blu-ray

L1: The first part of the Blu-ray

L2: The second part of Blu-ray

L3: The third part of Blu-ray

L4: The fourth part of Blu-ray

B1: the first band light

B2: second wave band light

B3: The third band light

Aspects of the present disclosure are best understood from the following embodiments when read with the accompanying figures. It is noted that, in accordance with the standard practice in the industry, various features are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily increased or decreased for clarity of discussion.

FIG. 1 is a schematic diagram of an optical path of a projector lighting system in operation according to an embodiment of the present disclosure.

Figure 2 shows an enlarged view of the local light path of the projector lighting system in Figure 1 when it is in operation.

Figure 3 shows the top view of the fluorescent color wheel in Figure 2.

Figure 4 shows an enlarged view of the local light path of the projector lighting system in Figure 1 when it is in operation.

5 to 7 illustrate top views of fluorescent color wheels according to variations of the present disclosure.

FIG. 8 is a schematic diagram of a beam reducer module passing through a beam according to an embodiment of the present disclosure.

FIG. 9 is a schematic diagram of a light concentrating module passing through a light beam according to an embodiment of the present disclosure.

FIG. 10 is a schematic diagram of a light concentrating module passing through a light beam according to another embodiment of the present disclosure.

FIG. 11 is a schematic diagram of the optical path of the projector lighting system in operation according to another embodiment of the present disclosure.

Figure 12 shows a projector lighting system according to another embodiment of the present disclosure Schematic diagram of the optical path during system operation.

FIG. 13 is a schematic diagram of the optical path of the projector lighting system in operation according to yet another embodiment of the present disclosure.

The description of the embodiments disclosed below provides many different implementations, or examples, for implementing different features of the provided subject matter. Specific examples of components and arrangements are described below to simplify the present case. Of course, these examples are only examples and are not intended to be limiting. In addition, the present case may repeat element symbols and/or letters in various instances. This repetition is for the purposes of brevity and clarity and does not in itself dictate a relationship between the various implementations and/or configurations discussed.

Spatially relative terms such as "below", "beneath", "lower", "above", "upper", etc. can be found in It is used herein for ease of description to describe the relationship of one element or feature to another element or feature as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

FIG. 1 is a schematic diagram of an optical path during operation of a projector lighting system 100 according to an embodiment of the present disclosure. The projector lighting system 100 includes an optical engine module 105 , a light source module 110 , a reflector 120 , a first beam splitter 130 , a fluorescent color wheel 140 and a lens group 150 . Light source module 110 to the light machine The direction of the module 105 defines a first direction D1. The light source module 110 can emit blue light L along the first direction D1. The reflection mirror 120 is located between the light source module 110 and the first beam splitter 130 . The reflecting mirror 120 can reflect the blue light L to transmit the blue light L to the second direction D2. The first beam splitter 130 is located between the mirror 120 and the optomechanical module 105 . In some embodiments, the mirror 120 may be substantially perpendicular to the first beam splitter 130 . The first beam splitter 130 has a blue light transmissive area 132 and a reflective area 134 . The blue light penetrating area 132 of the first beam splitter 130 can pass the blue light L transmitted in the second direction D2.

In some implementations, the light source module 110 may include a plurality of laser light sources, for example arranged in a 5x5 matrix. The projector lighting system 100 may further include a beam shrinking module 160 . The beam shrinking module 160 is located between the light source module 110 and the reflector 120, and can compress the laser beam (that is, the blue light L) to reduce the light energy in the blue light penetration area 132 of the reflector 120 and the first beam splitter 130 loss.

FIG. 2 shows an enlarged view of a partial optical path of the projector lighting system 100 in FIG. 1 when it is in operation. FIG. 3 shows a top view of the fluorescent color wheel 140 in FIG. 2 . Referring to FIG. 2 and FIG. 3 at the same time, the fluorescent color wheel 140 has a reflection area 142 and a first wavelength conversion area 144 . The reflective area 142 of the fluorescent color wheel 140 can reflect the first part L1 of the blue light. In some embodiments, the reflective region 142 of the fluorescent color wheel 140 is a mirror surface. The material of the reflective area 142 may include silver, white gel or titanium dioxide (TiO ₂ ), and the first wavelength conversion area 144 may include yellow phosphor, but this disclosure is not limited thereto.

Referring to FIG. 1 and FIG. 2 at the same time, the lens group 150 is located between the first beam splitter 130 and the fluorescent color wheel 140 , and may include a plurality of convex lenses. The lens group 150 has a function of collecting light, and can refract the blue light L transmitted in the second direction D2 to the fluorescent color wheel 140 . In more detail, the lens group 150 can refract the first part L1 of the blue light to the reflection area 142 of the fluorescent color wheel 140, and refract the first part L1 of the blue light reflected from the reflection area 142 to the lens group 150 in the third direction D3. to the reflection area 134 of the first beam splitter 130 . Wherein, the third direction D3 is opposite to the second direction D2. In addition, the reflective area 134 of the first beam splitter 130 can reflect the first part L1 of the blue light transmitted along the third direction D3 toward the first direction D1 to form a T-shaped optical path.

FIG. 4 shows an enlarged view of a partial optical path of the projector lighting system 100 in FIG. 1 in operation. Referring to FIG. 1 and FIG. 4 at the same time, the lens group 150 can refract the blue light L transmitted in the second direction D2 to the fluorescent color wheel 140 . In more detail, the lens group 150 can refract the second part L2 of the blue light to the first wavelength conversion region 144 of the fluorescent color wheel 140 (see also FIG. 3 ), and the first wavelength conversion region 144 can excite the second part L2 of the blue light. part L2 to form the first wavelength band light B1. The lens group 150 can pass the light B1 of the first wavelength band. The light B1 of the first wavelength band is scattered light and transmits toward the third direction D3. The first beam splitter 130 can reflect the light B1 of the first wavelength band in the whole area (including the reflection area 134 ), so that the light B1 of the first wavelength band can be reflected in the first direction D1 to form a T-shaped optical path.

In some implementations, the projector lighting system 100 may further include a focusing module 170 . The light concentrating module 170 is located between the first beam splitter 130 and the optical engine module 105 . The condensing module 170 can condense the first part L1 of the first wavelength band light B1 and the blue light reflected by the first beam splitter 130 and transmitted toward the first direction D1 to the optical engine module 105 . In addition, the light concentrating module 170 has a light mixing effect, which is beneficial to light uniformity. In addition, the optical axis of the focusing module 170 The optical axis parallel to the beam shrinking module 160 will facilitate the formation of a T-shaped optical path.

Referring to FIG. 1, in summary, since the light source module 110 emits blue light L along the first direction D1, the blue light L is reflected by the reflector 120 and can pass through the blue light penetrating region 132 of the first beam splitter 130 so that the first part of the blue light L1 can be reflected by the reflection region 142 (see FIG. 3 ) of the fluorescent color wheel 140, and the second part of blue light L2 can be excited by the first wavelength conversion region 144 (see FIG. 3 ) of the fluorescent color wheel 140 to form the first wavelength conversion region 144 (see FIG. 3 ). One wavelength band light B1, and the reflection area 134 of the first beam splitter 130 can reflect the first part L1 of the blue light and the first wavelength band light B1 to the optical engine module 105 along the first direction D1, so the light output direction of the light source module 110 is the same as The light-receiving directions of the optical-mechanical module 105 are consistent (both are the first direction D1), forming a T-shaped optical path. Such a configuration is applicable to a slim projection system. In addition, since the light output direction of the light source module 110 is the same as the light receiving direction of the optical engine module 105 , it is possible to avoid deviation of the optical path angle of the product during the manufacturing process, thereby improving the light efficiency.

FIG. 5 to FIG. 7 illustrate top views of fluorescent color wheels 140a, 140b, 140c according to various embodiments of the present disclosure. The fluorescent color wheels 140 a , 140 b , 140 c can replace the aforementioned fluorescent color wheel 140 . Referring to FIG. 4 and FIG. 5 at the same time, the difference between this embodiment and the embodiment in FIG. 3 is that the fluorescent color wheel 140 a further includes a second wavelength conversion region 146 . The second wavelength conversion region 146 is configured to excite the third part L3 of the blue light to form the second wavelength band light B2. In addition, the second wavelength conversion region 146 of the fluorescent color wheel 140a may include green phosphor.

See Fig. 4 and Fig. 6 at the same time, this embodiment and Fig. 5 The difference between the embodiments is that the fluorescent color wheel 140 b further includes a third wavelength conversion region 148 . The third wavelength conversion region 148 is configured to excite the fourth part L4 of the blue light to form the third wavelength band light B3. In addition, the third wavelength conversion region 148 of the fluorescent color wheel 140b may include red phosphor.

Referring to Fig. 4 and Fig. 7 at the same time, the difference between this embodiment and the embodiment in Fig. 5 is that the fluorescent color wheel 140c includes a third wavelength conversion region 148 without the first wavelength conversion region 144, and the third wavelength conversion region 148 The second wavelength converting region 146 and the second wavelength converting region 146 may include red phosphor and green phosphor, respectively. It should be understood that in this embodiment, the fluorescent color wheel 140c has two wavelength conversion regions, so the third wavelength conversion region 148 can be regarded as the first wavelength conversion region where the yellow phosphor is replaced by red phosphor.

FIG. 8 is a schematic diagram of the beam reduction module 160 passing through the beam according to an embodiment of the present disclosure. Referring to Fig. 1 and Fig. 8 at the same time, the beam shrinking module 160 is located between the light source module 110 and the reflector 120, and may include a convex lens and a concave lens, configured to compress the laser beam (ie, blue light L) for reflection The blue light penetrating region 132 of the mirror 120 and the first beam splitter 130 reduces light energy loss.

FIG. 9 is a schematic diagram of the light concentrating module 170 passing through the light beam according to an embodiment of the present disclosure. Referring to FIG. 1 and FIG. 9 at the same time, the light-condensing module 170 is located between the first beam splitter 130 and the optical-mechanical module 105, and can be a single lens, such as a biconvex lens. The condensing module 170 can condense the first part L1 of the first wavelength band light B1 and the blue light reflected by the first beam splitter 130 and transmitted toward the first direction D1 to the optical engine module 105 . Since the light B1 of the first wavelength band is scattered light, before the light beam enters the light concentrating module 170, the first The wavelength band light B1 is located on the outside and the first part L1 of the blue light is located on the inside, and the light beam will be mixed due to the transmission distance after passing through the light focusing module 170 .

FIG. 10 is a schematic diagram of a light concentrating module 170 a passing through a light beam according to another embodiment of the present disclosure. The difference between this embodiment and the embodiment shown in FIG. 9 is that the condensing module 170a includes a plurality of lenses, such as two bi-convex lenses.

It should be understood that the connection relationship, materials and functions of the components that have been described will not be repeated, and will be described first. In the following description, other types of projector lighting systems will be described.

FIG. 11 is a schematic diagram of an optical path during operation of a projector lighting system 100 a according to another embodiment of the present disclosure. The projector lighting system 100 a includes an optical engine module 105 , a light source module 110 , a reflector 120 , a first beam splitter 130 , a fluorescent color wheel 140 and a lens group 150 . The difference between this embodiment and the embodiment shown in FIG. 1 is that the projector illumination system 100a further includes a second beam splitter 130a. The second beam splitter 130a is located between the first beam splitter 130 and the lens group 150, and the second beam splitter 130a is configured to reflect the first part L1 of the blue light and allow the first wavelength band light B1 to pass through. The first wavelength band light B1 can be reflected by the first beam splitter 130 after passing through the second beam splitter 130 a. In this way, the configuration of the second dichroic mirror 130a can make the first part L1 of the reflected blue light and the reflected first wavelength band light B1 more likely to overlap, and ensure that the first part L1 of the reflected blue light and the reflected first part L1 of the blue light and the reflected The light B1 of the first wavelength band is parallel to each other and transmits toward the first direction D1.

FIG. 12 is a schematic diagram of an optical path during operation of a projector lighting system 100 b according to another embodiment of the present disclosure. Projector Lighting System 100b It includes an optomechanical module 105 , a light source module 110 , a first reflector 120 a , a first beam splitter 130 , a fluorescent color wheel 140 , a second reflector 120 b and a lens group 150 . The direction from the light source module 110 to the optical machine module 105 defines a first direction D1. The light source module 110 can emit blue light L along the first direction D1. The first reflector 120a can reflect the blue light L to transmit the blue light L to the second direction D2. The first beam splitter 130 can pass the blue light L transmitted in the second direction D2. The structure and operation mechanism of the fluorescent color wheel 140 are as described in the content of FIG. 1 to FIG. 7 in this paper, and will not be repeated here. The second mirror 120b is connected to one end of the first beam splitter 130 . In this embodiment, the second mirror 120b extends from the end of the first beam splitter 130 along the length direction of the first beam splitter 130, and the first mirror 120a is perpendicular to the second mirror 120b. The lens group 150 is located between the first beam splitter 130 and the fluorescent color wheel 140 . The lens group 150 can refract the blue light L transmitted in the second direction D2 to the fluorescent color wheel 140, and can refract the first part L1 of the blue light reflected by the reflection area 142 (see FIG. 3 ) of the fluorescent color wheel 140 in a third The direction D3 is refracted to the second mirror 120b. In addition, the lens group 150 can pass the first wavelength band light B1 excited by the first wavelength conversion region 144 (see FIG. 3 ) of the fluorescent color wheel 140 . The second reflector 120b can reflect the first part L1 of the blue light and the first wavelength band light B1 to the optical-mechanical module 105 along the first direction D1. In this embodiment, the first beam splitter 130 can reflect the first wavelength band light B1 in the whole area.

In some embodiments, the fluorescent color wheel 140 of the projector lighting system 100b can be one of the aforementioned fluorescent color wheels 140, 140a, 140b, 140c. The projector lighting system 100b may also include the aforementioned beam reduction The module 160 and one of the aforementioned focusing modules 170, 170a.

Since the light source module 110 emits blue light L along the first direction D1, the blue light L is reflected by the first reflector 120a and can pass through the first beam splitter 130 so that the first part L1 of the blue light can pass through the reflection area 142 of the fluorescent color wheel 140 (see Figure 3) reflection, the second part L2 of blue light (see Figure 4) can be excited by the first wavelength conversion region 144 (see Figure 4) of the fluorescent color wheel 140 to form the first wavelength band light B1, and the second The reflector 120b can reflect the first part L1 of the blue light and the light B1 of the first wavelength band to the optical-mechanical module 105 along the first direction D1, so the light-emitting direction of the light source module 110 is consistent with the light-receiving direction of the optical-mechanical module 105 (both is the first direction D1), forming a T-shaped optical path. Such a configuration is applicable to a slim projection system. In addition, since the light output direction of the light source module 110 is the same as the light receiving direction of the optical engine module 105 , it is possible to avoid deviation of the optical path angle of the product during the manufacturing process, thereby improving the light efficiency.

FIG. 13 is a schematic diagram of an optical path during operation of a projector lighting system 100c according to yet another embodiment of the present disclosure. The difference between this embodiment and the embodiment shown in FIG. 12 is that the projector illumination system 100c further includes a second beam splitter 130a. The second dichroic mirror 130a is located between the second reflecting mirror 120b and the lens group 150 . The second beam splitter 130a is configured to reflect the first part L1 of the blue light and allow the first wavelength band light B1 to pass through. The first wavelength band light B1 may be reflected by the second mirror 120 b after passing through the second beam splitter 130 a, or may be reflected by the first beam splitter 130 . In this way, the configuration of the second beam splitter 130a can make the first part L1 of the reflected blue light and the first reflected light B1 of the first wavelength band more likely to overlap, and ensure that the first part of the reflected blue light The component L1 and the reflected light B1 of the first wavelength band are parallel to each other and transmitted toward the first direction D1.

The foregoing outlines features of several embodiments so that those skilled in the art may better understand aspects of the present disclosure. It should be appreciated by those skilled in the art that they may readily use the present disclosure as a basis for designing or modifying other processes and structures, so as to achieve the same purposes and/or achieve the same advantages as the embodiments described herein. Those skilled in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that they can make various changes, substitutions and alterations herein without departing from the spirit and scope of the present disclosure.

100:Projector lighting system

105: Optomechanical module

110:Light source module

120: Mirror

130: the first beam splitter

132: Blue light penetration zone

134: reflection area

140: fluorescent color wheel

150: lens group

160:Beam reducer module

170: Spotlight module

D1: the first direction

D2: Second direction

D3: Third direction

L: Blu-ray

L1: The first part of the Blu-ray

B1: the first band light

Claims (20)

A projector lighting system, comprising: an optical machine module; a light source module, which defines a first direction toward the optical machine module, and the light source module is configured to emit a blue light along the first direction; A reflecting mirror configured to reflect the blue light so that the blue light is transmitted to a second direction; a first beam splitter has a blue light penetrating area and a reflecting area, and the blue light penetrating area is configured to be transmitted to the second direction The blue light passes through; a fluorescent color wheel has a reflective region and a first wavelength conversion region, the reflective region of the fluorescent color wheel is configured to reflect a first part of the blue light, and the first wavelength conversion region is configured to Exciting a second part of the blue light to form a first wavelength band light; and a lens group, located between the first beam splitter and the fluorescent color wheel, configured to refract the blue light transmitted in the second direction to the fluorescent color wheel, and refract the first part of the blue light to the reflection area of the first beam splitter in a third direction opposite to the second direction, and allow the light of the first wavelength band to pass through, wherein the first part of the blue light The reflective area of a beam splitter is configured to reflect the first part of the blue light and the first wavelength band light to the optical engine module along the first direction. The projector lighting system according to claim 1, wherein the reflector is located between the light source module and the first beam splitter. The projector lighting system as described in claim 1, wherein the The reflecting mirror is perpendicular to the first beam splitter. The projector lighting system as claimed in claim 1, wherein the first beam splitter is located between the reflector and the optical engine module. The projector lighting system as described in claim 1 further includes: a beam narrowing module located between the light source module and the reflector. The projector lighting system as described in claim 1 further includes: a light-condensing module located between the first beam splitter and the light-mechanical module. The projector lighting system as claimed in claim 1, wherein the reflection area of the fluorescent color wheel is a mirror surface. The projector lighting system as claimed in claim 1, wherein the material of the reflection area of the fluorescent color wheel includes silver, white glue or titanium dioxide (TiO ₂ ). The projector lighting system as claimed in claim 1, wherein the first wavelength conversion region of the fluorescent color wheel includes yellow phosphor. The projector lighting system as claimed in claim 1, wherein the fluorescent color wheel further includes a second wavelength conversion region configured to excite a third part of the blue light to form a second wavelength band light . The projector lighting system as recited in claim 10, wherein the second wavelength conversion region of the fluorescent color wheel includes green phosphor. The projector lighting system as claimed in claim 1, wherein the fluorescent color wheel further includes a third wavelength conversion region configured to excite a fourth part of the blue light to form a third wavelength band light . The projector lighting system as claimed in claim 12, wherein the third wavelength conversion region of the fluorescent color wheel includes red phosphor. The projector lighting system as described in Claim 1, wherein the fluorescent color wheel further includes a second wavelength conversion region, and the first wavelength conversion region and the second wavelength conversion region respectively include red phosphor powder and green phosphor pink. The projector lighting system as described in claim 1, further comprising: a second beam splitter, located between the first beam splitter and the lens group, configured to reflect the first part of the blue light and supply the first wavelength band light pass. A projector lighting system, comprising: an optical machine module; a light source module, which defines a first direction toward the optical machine module, and the light source module is configured to emit a blue light along the first direction; A first reflector configured to reflect the blue light so that the blue light goes to a second direction to transmit; a first beam splitter configured to pass through the blue light transmitted in the second direction; a fluorescent color wheel with a reflective area and a first wavelength conversion area, the reflective area of the fluorescent color wheel configured to reflect a first part of the blue light, the first wavelength conversion region configured to excite a second part of the blue light to form a first wavelength band light; a second reflector connected to one end of the first beam splitter; and A lens group, located between the first dichroic mirror and the fluorescent color wheel, configured to refract the blue light transmitted in the second direction to the fluorescent color wheel, and to refract the first part of the blue light to the opposite direction A third direction of the second direction is refracted to the second reflector, and allows the light of the first wavelength band to pass through, wherein the second reflector is configured so that the first part of the blue light and the light of the first waveband pass along the second reflector. One direction is reflected to the optomechanical module. The projector lighting system as claimed in claim 16, wherein the second reflector extends from the end of the first beam splitter along the length direction of the first beam splitter. The projector lighting system as claimed in claim 16, wherein the first reflector is perpendicular to the second reflector. The projector lighting system as described in claim 16, further comprising: A second beam splitter, located between the second reflection mirror and the lens group, is configured to reflect the first part of the blue light and allow the light of the first wavelength band to pass through. The projector lighting system as claimed in claim 16, wherein the reflective area of the fluorescent color wheel is a mirror surface, and the first wavelength conversion area of the fluorescent color wheel includes yellow phosphor.

Images