CN209471333U - A kind of laser illumination system and laser projection device - Google Patents
A kind of laser illumination system and laser projection device Download PDFInfo
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- CN209471333U CN209471333U CN201920348862.1U CN201920348862U CN209471333U CN 209471333 U CN209471333 U CN 209471333U CN 201920348862 U CN201920348862 U CN 201920348862U CN 209471333 U CN209471333 U CN 209471333U
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Abstract
The utility model provides a kind of laser illumination system and laser projection device.It include: first laser device and second laser, Wavelength converter, Amici prism；Wherein, the first laser device and the second laser issue the first coloured light and the second coloured light respectively, and first coloured light includes first part and second part；The first part is converted into third coloured light and penetrates the second part by the Wavelength converter, and first coloured light, second coloured light and the third coloured light constitute projection three primary colours light；Composite projection's white light after the Amici prism is reflected or transmitted to the second part, second coloured light and the third coloured light.Laser illumination system according to the present utility model and laser projection device, first laser device and second laser are arranged in different optical paths, only the first coloured light is used to illumination wavelength conversion equipment and forms third coloured light, so that finally formed light combination be made to go out, light color is more preferable, and colour gamut is wider.
Description
Technical Field
The utility model relates to an electronic equipment field particularly relates to a laser lighting system and laser projection device.
Background
In a laser lighting or projection system, a projection light source is often set by using two-color laser, in which a first color light emitted by a first laser and a second color light emitted by a second laser are set in the same light path. The two color lights are simultaneously emitted to the wavelength conversion device, wherein part of the first color light is used for being converted into a third color light and forms a three-primary-color light source together with the rest of the first color light and the second color light. Because the second color light and the first color light are in the same light path, the second color light and the first color light simultaneously penetrate through the wavelength conversion device, and the angle selection is carried out on the first color light and the second color light in the process of penetrating through the wavelength conversion device, so that the two color lights can not give out all energy and can not be completely applied, the ratio of single color to single color is reduced, the emergent light color of the finally synthesized white light is subjected to color cross, and the color gamut is narrow.
The utility model provides a laser lighting system and laser projection device for solve the problem among the prior art.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
In order to solve the problems in the prior art, the utility model provides a laser lighting system, include: the device comprises a first laser, a second laser, a wavelength conversion device and a beam splitting prism; wherein,
the first laser and the second laser respectively emit first color light and second color light, and the first color light comprises a first part and a second part;
the wavelength conversion device converts the first part into third color light and transmits the second part, and the first color light, the second color light and the third color light form three primary color light for projection;
and the light splitting prism reflects or transmits the second part, the second color light and the third color light to synthesize white light for projection.
Illustratively, the first laser is a blue laser and the second laser is a red laser.
Illustratively, the wavelength conversion device is provided as a fluorescent wheel.
Illustratively, the fluorescent wheel is provided with a fluorescent material and a light-transmissive window.
The light path of the light splitting prism is the light path of the third color light generated by the excitation of the fluorescent wheel.
The optical path of the light splitting prism is provided with a first part and a second part, and the first part is arranged on the rear end of the wavelength conversion device.
Illustratively, the beam splitter prism reflects the first color light and the second color light and transmits the third color light.
The laser beam shaping device comprises a beam splitter, a laser beam shaping device and a light path shaping device, wherein the beam splitter is used for splitting laser beams into a plurality of beams, and the laser beams are arranged on the front end of the beam splitter.
Illustratively, the beam splitting prism is configured to have an X-type cross mirror configuration.
The utility model also provides a laser projection device, include as above arbitrary one laser lighting system.
According to the utility model discloses a laser lighting system and laser projection arrangement, the first laser instrument that produces first chromatic light sets up side by side with the second laser instrument that produces second chromatic light, only the first chromatic light that first laser instrument produced is used for shining and arouses wavelength conversion device and forms the third chromatic light, the second chromatic light that the second laser instrument produced directly gets into through the reflection of beam splitter prism and closes the light path to, the second chromatic light can not get into and close the light path because of need seeing through wavelength conversion device, avoid the monochromatic ratio of second chromatic light to descend. Therefore, the light color of the finally formed combined light is better, and the color gamut is wider.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.
In the drawings:
FIG. 1 is a schematic structural diagram of a wavelength conversion device;
fig. 2 is a schematic structural diagram of a laser lighting system according to an embodiment of the present invention;
fig. 3A-3B are schematic structural diagrams of a beam splitter prism of a laser illumination system according to an embodiment of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In order to thoroughly understand the present invention, a detailed description will be provided in the following description to illustrate the laser illumination system and the laser projection apparatus of the present invention. It is apparent that the implementation of the invention is not limited to the specific details familiar to a person skilled in the art of electronic devices. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same elements are denoted by the same reference numerals, and thus the description thereof will be omitted.
In a laser lighting or projection system, a projection light source is often set by using two-color laser, in which a first color light emitted by a first laser and a second color light emitted by a second laser are set in the same light path. The two color lights are simultaneously emitted to the wavelength conversion device, wherein part of the first color light is used for being converted into a third color light and forms a three-primary-color light source together with the rest of the first color light and the second color light. Since the second color light and the first color light are in the same optical path and simultaneously transmit through the wavelength conversion device with the first color light, the angles of the first color light and the second color light can be selected in the process of transmitting through the wavelength conversion device. Referring to fig. 1, a schematic diagram of a wavelength conversion device is shown. As shown in fig. 1, the wavelength conversion device includes a fluorescent portion 11 and a light-transmitting portion 12, the fluorescent portion 11 is configured to receive excitation of the first color light emitted from the first laser to generate a third color light, and the light-transmitting portion 12 is configured to transmit the first color light and the second color light, and is generally disposed in a fan shape having an angle θ, which is, for example, 50 °. Because the first color light and the second color light are combined with the third color light into white light after being transmitted through the light transmitting part 12, the second color light cannot give off all energy and cannot be completely applied, the single color ratio is reduced, the light emitting color of the finally combined white light is different, and the color gamut is narrower.
Example one
In order to solve the problems in the prior art, the utility model provides a laser lighting system, include: the device comprises a first laser, a second laser, a wavelength conversion device and a beam splitting prism; wherein,
the first laser and the second laser are arranged in different light paths and respectively emit first color light and second color light, and the first color light comprises a first part and a second part;
the wavelength conversion device converts the first part into third color light and transmits the second part, and the first color light, the second color light and the third color light form three primary color light for projection;
and the light splitting prism reflects or transmits the second part, the second color light and the third color light to synthesize white light for projection.
The principle of the laser illumination system according to an embodiment of the present invention is explained with reference to fig. 2 and the drawings. Fig. 2 is a schematic structural diagram of a laser lighting system according to an embodiment of the present invention; fig. 3A-3B are schematic structural diagrams of a beam splitter prism of a laser illumination system according to an embodiment of the present invention.
As shown in fig. 2, a schematic structural diagram of an optical path system of a laser illumination system according to an embodiment of the present invention is shown. A laser lighting system according to an embodiment of the present invention includes a first laser 1011 and a second laser 1012, wherein the first laser 1011 generates a first color light and the second laser 1012 generates a second color light. The first color light generated by the first laser 1011 propagates along the direction shown by the arrow 201 (which will be shown as the first color light beam 201 later), and is shaped by the beam shaping device composed of the focusing lens 102, the collimating lens 103 and the uniform diffusion mirror 104 to obtain a specific form of light beam. The second color light generated by the second laser 1012 travels in the direction shown by the arrow 203 (which will be shown as the second color light beam 203 later), and is also shaped by the beam shaping device composed of the focusing lens 102, the collimating lens 103, and the uniform diffusion mirror 104 to obtain a beam of a specific shape.
With continued reference to fig. 2, a laser illumination system according to an embodiment of the present invention further includes a wavelength conversion device 108 for converting a portion of the first color light into a third color light, the first color light, the second color light and the third color light constituting three primary colors for projection.
Illustratively, referring to fig. 2, the wavelength conversion device 108 includes a fluorescent wheel having a fluorescent material disposed thereon and a light transmissive window, a first portion of the first color light exciting the fluorescent material to produce the third color light, and a second portion of the first color light passing through the light transmissive window to combine with the second and third color lights.
According to the utility model discloses a laser lighting system, the first laser instrument that produces first chromatic light and the second laser instrument that produces second chromatic light set up in the light path of difference, only the first chromatic light that first laser instrument produced is used for shining and arouses wavelength conversion device and forms the third chromatic light, the second chromatic light that the second laser instrument produced directly gets into through the reflection of beam splitter prism and closes the light path to, the second chromatic light can not get into because of need seeing through wavelength conversion device and close the light path, avoid the monochromatic ratio of second chromatic light to descend. Therefore, the light color of the finally formed combined light is better, and the color gamut is wider.
According to one example of the present invention, the first color light is blue light, the second color light is red light, and the third color light is green light. The fluorescent material on the fluorescent wheel is set as a green powder fluorescent wheel. Fluorescent wheels that produce yellow light are often used in the prior art to produce red and green light from yellow light in a manner that results in a reduction in the fraction of a single color that is dispensed. Adopt the utility model discloses a mode can effectively improve in the projection monochromatic light and the monochromatic accounts for than, the light that closes of formation has better light-emitting colour to the colour gamut is wider.
Illustratively, as shown in fig. 2, the first color light, when emitted to the wavelength conversion device 108, first irradiates the beam splitter 105, wherein the beam splitter 105 can transmit the first color light and reflect the third color light, an arrow 204 shown in fig. 2 indicates the propagation direction of the third color light (which will be shown as a third color light beam 204 later), the first color light penetrates through the beam splitter 105 and is then first focused by the focusing lenses 106 and 107, and a first color light beam 201 penetrating through the fluorescent wheel is converted into a beam with a specific shape by the shaping lens 109 and is reflected to the beam splitter 112 by the mirror group 110. A shaping lens 111 may be further disposed between the mirror group 110 to further shape the first light beam 201.
With continued reference to fig. 2, the optical path system of a laser illumination system according to an embodiment of the present invention further includes a beam splitter prism 112. The beam splitter prism 112 is configured to have an X-cube prism (X-cube prism), and as shown in fig. 3A and 3B, the beam splitter prism 112 is configured to have an X-cube prism in a rectangular frame, where the X-cube prism includes a mirror 1121 and a mirror 1122 that are arranged in a cross. Illustratively, different coatings are disposed on the X-shaped cross mirror to transmit or reflect different colors of light, and referring to fig. 3B, the mirror 1121 has a surface 1121a and a surface 1121B, wherein the surface 1121a reflects the first color light and transmits the third color light, and the surface 1121B reflects the second color light and transmits the third color light. The mirror 1122 has a surface 1122a and a surface 1122b, in which the surface 1122a reflects the second color light and transmits the third color light, and the surface 1122b reflects the first color light and transmits the third color light. Therefore, the first color light, the second color light and the third color light form a uniform light path for light combination after being reflected or transmitted by the light splitting prism. As shown in fig. 2, the combined light passes through the focusing lens 113 to adjust the beam shape.
Example two
The utility model also provides a laser projection device, include as embodiment one laser lighting system. According to the utility model discloses a laser lighting system produces the first laser instrument of first chromatic light and produces the second laser instrument setting of second chromatic light in the light path of difference, only the first chromatic light that first laser instrument produced is used for shining and arouses wavelength conversion device formation third chromatic light, the second chromatic light that the second laser instrument produced directly gets into through the reflection of beam splitter prism and closes the light path, thereby, the second chromatic light can not get into because of need seeing through wavelength conversion device and close the light path, avoid the monochromatic proportion of second chromatic light to descend, thereby it is better to make the light color that closes that finally forms, the colour gamut is wider. The laser projection device according to the present invention thus also has the above-mentioned advantages.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A laser illumination system, comprising: the device comprises a first laser, a second laser, a wavelength conversion device and a beam splitting prism; wherein,
the first laser and the second laser respectively emit first color light and second color light, and the first color light comprises a first part and a second part;
the wavelength conversion device converts the first part into third color light and transmits the second part, and the first color light, the second color light and the third color light form three primary color light for projection;
and the light splitting prism reflects or transmits the second part, the second color light and the third color light to synthesize white light for projection.
2. The laser illumination system of claim 1, wherein the first laser is a blue laser and the second laser is a red laser.
3. The laser illumination system of claim 2, wherein the wavelength conversion device is provided as a fluorescent wheel.
4. The laser illumination system of claim 3, wherein the fluorescent wheel is provided with a fluorescent material and a light-transmissive window.
5. The laser illumination system of claim 4, further comprising a beam splitter disposed at a front end of the fluorescence wheel, wherein the beam splitter transmits the first color light and reflects the third color light generated by the excitation of the fluorescence wheel to a light path of the beam splitter prism.
6. The laser illumination system of claim 5, further comprising a mirror group disposed at a rear end of the wavelength conversion device for reflecting the second portion to a light path of the beam splitter prism.
7. The laser illumination system of claim 6, wherein the beam splitter prism reflects the first color light and the second color light and transmits the third color light.
8. The laser illumination system of claim 5, further comprising an optical path shaping device disposed at a front end of the beam splitter to shape the laser light to form a beam having a specific diameter before the laser light penetrates the beam splitter.
9. The laser illumination system of claim 1, wherein the beam splitting prism is configured with an X-cross mirror configuration.
10. A laser projection device comprising a laser illumination system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348862.1U CN209471333U (en) | 2019-03-19 | 2019-03-19 | A kind of laser illumination system and laser projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348862.1U CN209471333U (en) | 2019-03-19 | 2019-03-19 | A kind of laser illumination system and laser projection device |
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| Publication Number | Publication Date |
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| CN209471333U true CN209471333U (en) | 2019-10-08 |
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| CN201920348862.1U Active CN209471333U (en) | 2019-03-19 | 2019-03-19 | A kind of laser illumination system and laser projection device |
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- 2019-03-19 CN CN201920348862.1U patent/CN209471333U/en active Active
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