CN213420962U

CN213420962U - High-performance white light source device

Info

Publication number: CN213420962U
Application number: CN202021863005.4U
Authority: CN
Inventors: 赵爽; 曾庆兵
Original assignee: Shanghai Aviation Electric Co Ltd
Current assignee: Shanghai Aviation Electric Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-11
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a high-performance white light source device, which comprises a first semiconductor laser, a first collimating lens, a deformed prism pair group, a laser dodging mirror, a laser focusing mirror, fluorescent ceramics and a secondary grading mirror which are sequentially arranged along a first direction; the laser device also comprises a second semiconductor laser, a second collimating lens and a first laser reflector which are sequentially arranged along a second direction; the laser device also comprises a third semiconductor laser, a third collimating lens and a second laser reflector which are sequentially arranged along a third direction. The beneficial effects of the utility model reside in that: the design difficulty of the heat dissipation structure of the semiconductor laser is reduced.

Description

High-performance white light source device

Technical Field

The utility model relates to a semiconductor laser illumination field specifically is, a high performance white light source device.

Background

The LED light source has the advantages of high efficiency, stability, small volume, long service life and the like, but the brightness is limited. The semiconductor laser has the advantages of good monochromaticity, strong directivity, high brightness and the like besides the advantages of the LED light source, so that the light beam of the laser lighting device using the semiconductor laser as the excitation light source is more concentrated, the penetrating power is stronger, the volume is smaller, the structure is more compact, and the lighting device can be changed to be highly concentrated and miniaturized.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of LED light source and providing a novel high-performance white light source device.

In order to achieve the above object, the technical solution of the present invention is that: a high-performance white light source device comprises a first semiconductor laser, a first collimating lens, a deformed prism pair group, a laser dodging lens, a laser focusing lens, fluorescent ceramic and a secondary light distribution lens which are sequentially arranged along a first direction, wherein a first laser beam of the first semiconductor laser penetrates through the first collimating lens along the first direction and then reaches the deformed prism pair group along the first direction; the laser device also comprises a second semiconductor laser, a second collimating lens and a first laser reflector which are sequentially arranged along a second direction, wherein a second laser beam of the second semiconductor laser penetrates through the second collimating lens along the second direction, is reflected by the first laser reflector and then reaches the deformed prism pair along the first direction; the laser device also comprises a third semiconductor laser, a third collimating lens and a second laser reflector which are sequentially arranged along a third direction, wherein a third laser beam of the third semiconductor laser passes through the third collimating lens along the third direction, is reflected by the second laser reflector and then reaches the deformed prism group along the first direction; wherein the first direction, the second direction, and the third direction are different.

As a preferable aspect of the high-performance white light source device, the first direction is perpendicular to the second direction, and the second direction is opposite to the third direction.

As a preferable scheme of the high-performance white light source device, the first collimating lens, the second collimating lens or the third collimating lens is a spherical mirror or an aspherical mirror coated with an antireflection film.

As a preferable scheme of the high-performance white light source device, the first laser reflector or the second laser reflector is a planar reflector coated with a high-reflection film.

As a preferable scheme of the high-performance white light source device, the anamorphic prism pair group is composed of a first anamorphic prism pair and a second anamorphic prism pair, and the first anamorphic prism pair or the second anamorphic prism pair are two right-angle prisms which have completely the same optical structure parameters and are oppositely arranged and are plated with antireflection films.

As a preferable scheme of the high-performance white light source device, the laser dodging mirror is a micro lens array or ground glass.

As a preferred scheme of a high-performance white light source device, the laser focusing lens is a spherical lens or an aspheric lens coated with an antireflection film.

The secondary lens is a spherical lens or an aspheric lens plated with an antireflection film.

As a preferable scheme of the high-performance white light source device, the high-performance white light source device further comprises a heat sink for dissipating heat of the fluorescent ceramic. Further, a blue-transmitting and yellow-reflecting filter is arranged between the fluorescent ceramic and the heat sink.

Compared with the prior art, the utility model has the advantages that at least: the first semiconductor laser, the second semiconductor laser and the third semiconductor laser are not arranged on the same plane and are arranged in space, and the design difficulty of a heat dissipation structure of the semiconductor laser is reduced.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a top view of the structure of the present invention.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 2, a high-performance white light source device is shown. The light source device comprises a first semiconductor laser 11, a first collimating lens 12, a deformable prism pair group 4, a laser dodging mirror 5, a laser focusing mirror 6, fluorescent ceramic 9 and a secondary light distribution mirror 8 which are sequentially arranged from left to right. The first laser beam of the first semiconductor laser 11 passes through the first collimating lens 12 to the right and then reaches the anamorphic prism pair group 4 to the right. The laser device further comprises a second semiconductor laser 21, a second collimating lens 22 and a first laser reflector 23 which are arranged from front to back in sequence. The second laser beam of the second semiconductor laser 21 passes through the second collimating lens 22 backward, is reflected by the first laser mirror 23, and then reaches the anamorphic prism pair 4 rightward. The laser device further comprises a third semiconductor laser 31, a third collimating lens 32 and a second laser reflector 33 which are arranged from back to front in sequence. The third laser beam of the third semiconductor laser 31 passes through the third collimating lens 32 forward, is reflected by the second laser mirror 33, and then reaches the anamorphic prism pair 4 rightward.

The first semiconductor laser 11 includes 5 LDs. The second semiconductor laser 21 and the third semiconductor laser 31 include 4 pieces. The first semiconductor laser 11, the second semiconductor laser 21 and the third semiconductor laser 31 are spatially arranged, so that the design difficulty of a heat dissipation structure of the semiconductor lasers is reduced.

The first collimating lens 12, the second collimating lens 22 and the third collimating lens 32 are used for collimating the first laser beam, the second laser beam and the third laser beam, respectively. The first collimating lens 12, the second collimating lens 22 and the third collimating lens 32 are spherical mirrors or aspherical mirrors coated with antireflection films.

The anamorphic prism pair group 4 is used for compressing the optical widths of the first laser beam, the second laser beam and the third laser beam so as to reduce the overall size of the light source device. The anamorphic prism pair group 4 is composed of a first anamorphic prism pair and a second anamorphic prism pair 4. The first anamorphic prism pair or the second anamorphic prism pair is a right-angle prism which is plated with an antireflection film and has two optical structure parameters which are completely the same and are oppositely arranged.

The laser dodging mirror 5 is used for homogenizing the laser energy density on the surface of the fluorescent ceramic 9. The laser dodging mirror 5 is a micro-lens array or frosted glass.

The laser focusing mirror 6 is used for focusing the laser beam after compressing the optical width.

The fluorescent ceramic 9 is used for wavelength conversion. The fluorescent ceramic 9 is transmissive. The fluorescent ceramic 9 emits yellow light. The fluorescent ceramic 9 is provided with a heat sink 7. The heat sink 7 is used for heat dissipation of the fluorescent ceramic 9. A blue-transmitting and yellow-reflecting filter (not shown) between the fluorescent ceramic 9 and the heat sink 7 is used to transmit blue light emitted by the semiconductor laser and reflect yellow light emitted by the wavelength conversion material.

The secondary lens 8 is used for collecting the mixed white light source. The secondary lens 8 is a spherical lens or an aspheric lens plated with an antireflection film. The proportion of the driving current of the semiconductor laser is controlled in groups, and the power coefficient is corrected, so that the output luminous flux of the light source device is not influenced by the adjustment of the color temperature of the light source.

The above description is only intended to illustrate embodiments of the present invention, and the description is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A high-performance white light source device is characterized by comprising a first semiconductor laser, a first collimating lens, a deformed prism pair group, a laser dodging lens, a laser focusing lens, fluorescent ceramic and a secondary light distribution lens which are sequentially arranged along a first direction, wherein a first laser beam of the first semiconductor laser penetrates through the first collimating lens along the first direction and then reaches the deformed prism pair group along the first direction; the laser device also comprises a second semiconductor laser, a second collimating lens and a first laser reflector which are sequentially arranged along a second direction, wherein a second laser beam of the second semiconductor laser penetrates through the second collimating lens along the second direction, is reflected by the first laser reflector and then reaches the deformed prism pair along the first direction; the laser device also comprises a third semiconductor laser, a third collimating lens and a second laser reflector which are sequentially arranged along a third direction, wherein a third laser beam of the third semiconductor laser passes through the third collimating lens along the third direction, is reflected by the second laser reflector and then reaches the deformed prism group along the first direction; wherein the first direction, the second direction, and the third direction are different.

2. The high-performance white light source device according to claim 1, wherein the first direction is perpendicular to the second direction, and the second direction is opposite to the third direction.

3. The high-performance white light source device of claim 1, wherein the first collimating lens, the second collimating lens or the third collimating lens is a spherical mirror or an aspherical mirror coated with an antireflection film.

4. The white light source device of claim 1, wherein the first laser reflector or the second laser reflector is a planar reflector coated with a high reflective film.

5. The high-performance white light source device of claim 1, wherein the anamorphic prism pair group comprises a first anamorphic prism pair and a second anamorphic prism pair, and the first anamorphic prism pair or the second anamorphic prism pair is a right-angle prism with two optical structure parameters being identical and being oppositely arranged and coated with an antireflection film.

6. The high-performance white light source device according to claim 1, wherein the laser dodging mirror is a micro lens array or ground glass.

7. The high-performance white light source device according to claim 1, wherein the laser focusing lens is a spherical lens or an aspherical lens coated with an antireflection film.

8. The high-performance white light source device according to claim 1, wherein the secondary lens is a spherical lens or an aspherical lens coated with an antireflection film.

9. The high-performance white light source device according to claim 1, further comprising a heat sink for dissipating heat of the fluorescent ceramic.

10. The high-performance white light source device of claim 9, wherein a blue-transmitting and yellow-reflecting filter is disposed between the fluorescent ceramic and the heat sink.