CN114963033A - LED light source module and lens module detection equipment - Google Patents
LED light source module and lens module detection equipment Download PDFInfo
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- CN114963033A CN114963033A CN202210902108.4A CN202210902108A CN114963033A CN 114963033 A CN114963033 A CN 114963033A CN 202210902108 A CN202210902108 A CN 202210902108A CN 114963033 A CN114963033 A CN 114963033A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses an LED light source module and a lens module detection device, wherein the LED light source module comprises a shell, a plurality of light sources, a light guide pipe and a light path adjusting device, the light sources are arranged in the shell, the light emitting wavelengths of the light sources are different, the light guide pipe is provided with a light guide end extending into the shell and a light outlet end exposed out of the shell, the light guide pipe is used for shaping and then emitting light emitted by the light sources, and the light path adjusting device is arranged between the light sources and the light guide end of the light guide pipe and is used for conducting the light emitted by the light sources to the light guide end of the light guide pipe. In the technical scheme, the light guide pipe is arranged, so that the light with different wavelengths at different positions in the shell can be shaped and emitted, the energy distribution of the output light is redistributed, and the uniformity and the divergence angle of the output light can be effectively controlled.
Description
Technical Field
The invention relates to the technical field of optical illumination, in particular to an LED light source module and a lens module detection device.
Background
Optical inspection equipment typically requires a highly uniform light source to provide illumination. The prior common lighting schemes mainly comprise two schemes, one scheme is that an LED or a halogen lamp box is adopted, lighting is provided through optical fibers, the scheme needs additional optical fiber transmission, large energy loss exists in the transmission process, the wavelength can be switched only by replacing an optical filter, the speed is low, and the requirement of automatic production cannot be met; the other scheme is to directly illuminate through a small high-brightness point light source, and the method often cannot realize wavelength switching, or sacrifices the uniformity and brightness of the light source for realizing wavelength switching, and finally has great influence on the detection accuracy and speed.
Disclosure of Invention
The invention mainly aims to provide an LED light source module and lens module detection equipment, and aims to solve the problem that the illumination ranges of light with different wavelengths of the traditional multi-wavelength LED patch lamp are not coincident.
In order to achieve the above object, the present invention provides an LED light source module, including:
a housing;
the light sources are arranged in the shell, and the light emitting wavelengths of the light sources are different;
the light guide pipe is provided with a light guide end extending into the shell and a light outlet end exposing out of the shell, and is used for shaping and emitting light emitted by the light sources; and the number of the first and second groups,
and the light path adjusting device is arranged between the plurality of light sources and the light guide end of the light guide pipe and is used for transmitting the light emitted by each light source to the light guide end of the light guide pipe.
Optionally, the internal cavity of the housing comprises:
a through hole is formed in one end wall of the main cavity, and the light guide pipe is installed in the through hole; and the number of the first and second groups,
the installation cavity is formed at one side and/or the other end of the main cavity, the installation cavity is communicated with the main cavity, and the installation cavity is used for installing a plurality of light sources.
Optionally, the installation cavity is provided in plurality, and the installation cavities include:
the first installation cavity is positioned on the side of the main cavity and communicated with the main cavity, a plurality of light sources are arranged in the first installation cavity, and the light sources are arranged at intervals in the first installation cavity along the direction far away from the light guide pipe; and the number of the first and second groups,
the second installation cavity is arranged at the other end of the main cavity, and the light source is arranged in the second installation cavity;
the light path adjusting device comprises a plurality of dichroic mirrors, the plurality of dichroic mirrors are arranged in the main cavity and correspond to the plurality of light sources, and light beams emitted by the light sources in the corresponding first installation cavities are shot to the light guide pipe;
and the wavelength of each light source is gradually increased or gradually decreased in the direction close to the light guide pipe.
Optionally, the installation cavity includes a first installation cavity, the first installation cavity is located the side of main cavity and with the main cavity intercommunication, be provided with in the first installation cavity a plurality of the light source, it is a plurality of the light source includes:
the first light source is arranged at one end of the first installation cavity, which is far away from the light guide pipe; and the number of the first and second groups,
the second light source group is arranged on one side, close to the light guide pipe, of the first light source and comprises a plurality of light sources which are arranged in the first installation cavity at intervals along the direction far away from the light guide pipe;
the light path adjusting device comprises a reflecting mirror and a plurality of dichroic mirrors, the reflecting mirror is arranged in the main cavity and is arranged corresponding to the first light source, the dichroic mirrors are arranged in the main cavity and are arranged corresponding to the light sources in the second light source group, and light beams emitted by the light sources in the corresponding first installation cavities are emitted to the light guide pipe;
and the wavelength of each light source is gradually increased or gradually decreased in the direction close to the light guide pipe.
Optionally, the installation cavity is provided in a plurality, and the plurality of installation cavities includes:
the two first installation cavities are oppositely arranged on two sides of the main cavity and communicated with the main cavity, and the light sources are respectively arranged in the two first installation cavities; and the number of the first and second groups,
the second installation cavity is arranged at the other end of the main cavity, and the light source is arranged in the second installation cavity;
the light path adjusting device comprises dichroic prisms formed by connecting four identical right-angle prisms in pairs, the dichroic prisms are arranged in the main cavity and located between the two first mounting cavities, two end faces of each right-angle prism are isosceles right triangles, two right-angle faces corresponding to right-angle sides of two adjacent right-angle prisms are connected in pairs to form the dichroic prisms, each dichroic prism comprises two opposite square end faces and four rectangular side faces, the four rectangular side faces are three incident faces and one emergent face respectively, the three incident faces correspondingly face the two first mounting cavities and the second mounting cavity respectively, the emergent faces are arranged towards the light guide pipe, and the emergent faces are used for outputting light beams;
the wavelength of the light source in the second installation cavity is lambda 1, the two light sources in the two first installation cavities are lambda 2 and lambda 3 respectively, and lambda 1> lambda 2> lambda 3;
the first right-angle surface of each right-angle prism is plated with a first film, the second right-angle surface of each right-angle prism is plated with a second film, the right-angle surfaces of two adjacent right-angle prisms plated with the same film are connected in pairs, and the first film is completely transmissive to light beams with the wavelengths of lambda 1 and lambda 3 and totally reflective to light beams with the wavelengths of lambda 2; the second film is totally transmissive to light beams having wavelengths λ 1 and λ 2 and totally reflective to light beams having a wavelength λ 3.
Optionally, the cross-sectional dimension of the mounting cavity is tapered in a direction away from the main cavity.
Optionally, the inner walls of the main cavity and the installation cavity are both provided with a reflective film.
Optionally, the cross-sectional dimension of the light guide pipe is gradually changed.
Optionally, a plurality of condensing lenses are further disposed in the housing, and the plurality of condensing lenses are correspondingly disposed between the plurality of light sources and the light path adjusting device, so as to converge the light beams emitted by the light sources.
Optionally, the casing is further provided with a plurality of circuit boards, the plurality of light sources are correspondingly connected with the plurality of circuit boards, and a radiator is arranged on one side of the circuit board, which faces away from the light sources, and is used for radiating heat for the circuit boards.
The invention also provides a lens module detection device, which comprises the LED light source module, wherein the LED light source module comprises:
a housing;
the light sources are arranged in the shell, and the light emitting wavelengths of the light sources are different;
the light guide pipe is provided with a light guide end extending into the shell and a light outlet end exposing out of the shell, and is used for shaping and emitting light emitted by the light sources; and the number of the first and second groups,
and the light path adjusting device is arranged between the plurality of light sources and the light guide end of the light guide pipe and is used for transmitting the light emitted by each light source to the light guide end of the light guide pipe.
Optionally, the lens module detection device is an autocollimator or a collimator.
In the technical scheme of the invention, the light sources are arranged in the shell, the light of the light sources is guided to the light guide pipe by matching with the light path adjusting device, the light emitting wavelengths of the light sources are different, the wavelength of emergent light can be changed by controlling the starting sequence and the starting mode of the light sources, the light guide pipe is used for shaping the light emitted by the light sources, the light is transmitted forwards in the light guide pipe through reflection, the output light energy is distributed to be redistributed, the shaped light is emitted again, and the uniformity and the divergence angle of the light can be effectively controlled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram of an LED light source module according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of an LED light source module according to a second embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of an LED light source module according to a third embodiment of the present invention;
fig. 4 is an exploded view of the dichroic prism of fig. 3.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
31 | |
| 11 | |
32 | |
| 12 | Mounting cavity | 4 | Light |
| 121 | |
41 | |
| 121a | |
42 | |
| 121b | Second bypass chamber | 43 | |
| 121c | |
431 | Right- |
| 122 | |
432 | |
| 123 | |
433 | |
| 2 | |
5 | |
| 21 | |
6 | |
| 3 | |
7 | Heat radiator |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Optical inspection equipment typically requires a highly uniform light source to provide illumination. The prior common lighting schemes mainly comprise two schemes, one scheme is that an LED or a halogen lamp box is adopted, lighting is provided through optical fibers, the scheme needs additional optical fiber transmission, large energy loss exists in the transmission process, the wavelength can be switched only by replacing an optical filter, the speed is low, and the requirement of automatic production cannot be met; the other scheme is to directly illuminate through a small high-brightness point light source, and the method often cannot realize wavelength switching, or sacrifices the uniformity and brightness of the light source for realizing wavelength switching, and finally has great influence on the detection accuracy and speed.
In view of this, the present invention provides an LED light source module, which aims to solve the problem that the illumination ranges of the lights with different wavelengths of the conventional multi-wavelength LED patch lamp are not coincident.
Please refer to fig. 1 for a first embodiment of the present invention, fig. 2 for a second embodiment of the present invention, and fig. 3 for a third embodiment of the present invention.
In the embodiment of the present invention, the LED light source module includes a housing 1, a plurality of light sources 2, a light guide 3, and a light path adjusting device 4, wherein the plurality of light sources 2 are disposed in the housing 1, and the light emitting wavelengths of the plurality of light sources 2 are different; the light guide pipe 3 is provided with a light guide end 31 extending into the shell 1 and a light outlet end 32 exposing the shell 1 outwards, and the light guide pipe 3 is used for shaping and then emitting light emitted by the light sources 2; the light path adjusting device 4 is disposed between the plurality of light sources 2 and the light guiding end 31 of the light guiding pipe 3, and is configured to conduct the light emitted by each of the light sources 2 to the light guiding end 31 of the light guiding pipe 3. In the technical scheme, a plurality of light sources 2 are arranged in the shell 1, and the light emitting wavelengths of the light sources 2 are different, so that the wavelength of light emitted by the LED light source module can be changed by controlling the starting sequence and the starting number of the light sources 2, the inner wall of the light guide pipe 3 is provided with a reflecting material, the wavelengths of the light emitted by the light sources 2 are different, the divergence angles are also different, when the light emitted from a plurality of light sources 2 enters the light guide 3 and is transmitted forward by reflection, the energy distribution of the light output from each light source 2 is redistributed, after being shaped, the light is emitted, the uniformity and the divergence angle of the finally emitted light can be effectively controlled, the light path adjusting device 4 is used for adjusting the light paths of the plurality of light sources 2, so that the light paths of the plurality of light sources 2 can be all injected into the light guide pipe 3.
It should be noted that the light sources 2 are LED light sheets, each LED light sheet can emit light independently or simultaneously, and the light paths of the plurality of light sources 2 are adjusted by the light path adjusting device 4 and then are all injected into the light guide 3 in the direction coaxial with the light guide 3, so as to improve the output efficiency of the plurality of light sources 2.
In an embodiment of the present invention, the inner cavity of the housing 1 includes a main cavity 11 and an installation cavity 12, and one end wall of the main cavity 11 is provided with a via hole for installing the light pipe 3; the installation cavity 12 is formed at one side and/or the other end of the main cavity 11, the installation cavity 12 is communicated with the main cavity 11, and the installation cavity 12 is used for installing a plurality of light sources 2. The main cavity 11 forms a main light path along its extending direction, and is a plurality of the light of light source 2 passes through all converge after light path adjusting device 4 adjusts in the main light path, the via hole sets up the one end in main light path, main light path with the coaxial setting of light pipe 3. In the present embodiment, the plurality of light sources 2 are disposed in the installation cavity 12, the installation cavity 12 is formed at one side and/or the other end of the main cavity 11 and is communicated with the main cavity 11, light of the plurality of light sources 2 passes through the installation cavity 12 and then enters the main cavity 11, and the light converges into the main light path through the light path adjusting device 4, so that the technical effect of coaxial output of the plurality of light sources 2 at different positions is achieved.
Referring to fig. 1, in a first embodiment of the present invention, a plurality of mounting cavities 12 are provided, where the plurality of mounting cavities 12 include a first mounting cavity 121 and a second mounting cavity 122, the first mounting cavity 121 is located on a side of the main cavity 11 and is communicated with the main cavity 11, a plurality of light sources 2 are disposed in the first mounting cavity 121, and the plurality of light sources 2 are spaced apart from each other in a direction away from the light guide tube 3 in the first mounting cavity 121; the second installation cavity 122 is arranged at the other end of the main cavity 11, and the light source 2 is arranged in the second installation cavity 122; the optical path adjusting device 4 includes a plurality of dichroic mirrors 41, the plurality of dichroic mirrors 41 are disposed in the main cavity 11 and are disposed corresponding to the plurality of light sources 2, so as to direct the light beams emitted by the light sources 2 corresponding to the first mounting cavity 121 toward the light guide; the wavelength of each light source 2 is gradually increased or decreased in a direction approaching the light guide 3.
It should be noted that at least one light source 2 is disposed in the first mounting cavity 121. In this embodiment, two light sources 2 are disposed in the first mounting cavity 121, the two light sources 2 are disposed at intervals in the first mounting cavity 121 along a direction away from the light guide 3, specifically, the first mounting cavity 121 further includes a first bypass cavity 121a and a second bypass cavity 121b for respectively mounting the two light sources 2, and a barrier 123 is disposed between the first bypass cavity 121a and the second bypass cavity 121b for separating the two light sources 2, which are independent of each other and are convenient for controlling divergence angles thereof. Dichroic mirror 41 is equipped with two and corresponds respectively first bypass chamber 121a with second bypass chamber 121b sets up, two dichroic mirror 41 with the contained angle of the main light path in the main cavity 11 is 45 settings, a plurality of in the first installation cavity 121 the respective light path of light source 2 and its correspondence the contained angle of dichroic mirror 41 is 45 settings, and, light source 2 sets up rather than corresponding the orientation of dichroic mirror 41 one side of light pipe 3. In the direction approaching the light guide 3, the wavelength of each light source 2 is gradually increased or gradually decreased, and the three light sources 2 have the wavelengths λ 1, λ 2 and λ 3 in sequence along the direction approaching the light guide 3, when λ 1> λ 2> λ 3, the dichroic mirror 41 is a long-wave dichroic mirror, light larger than the threshold wavelength thereof will be completely transmitted, and light smaller than the wavelength will be completely reflected, and at this time, the two dichroic mirrors 41 have the threshold wavelengths λ 4 and λ 5 in sequence along the direction approaching the light guide 3, wherein λ 1> λ 4> λ 2, λ 2> λ 5> λ 3; in contrast, when λ 1< λ 2< λ 3, the dichroic mirrors 41 are short-wave dichroic mirrors, light smaller than the threshold wavelength thereof will be completely transmitted, and light larger than the threshold wavelength thereof will be completely reflected, and then the two dichroic mirrors 41 set the threshold wavelengths λ 4 and λ 5 in the direction approaching the light guide 3, wherein λ 1< λ 4< λ 2, and λ 2< λ 5< λ 3. More specifically, in a preferred embodiment, the two light sources 2 of the first mounting cavity 121 and the light source 2 of the second mounting cavity 122 are LED lamp beads with three different wavelengths, namely, red, green and blue, because red, green and blue are three primary colors, and can combine various colors, the light sources 2 with three colors, namely, red, green and blue, are sequentially arranged along the direction close to the light guide 3, and then the dichroic mirror 41 is a short-wave dichroic mirror; the light sources 2 of the three colors of red, green and blue may also be sequentially arranged along a direction away from the light guide 3, and at this time, the dichroic mirror 41 is a long-wave dichroic mirror.
Referring to fig. 2, in a second embodiment of the present invention, the installation cavity 12 includes a first installation cavity 121, the first installation cavity 121 is located at a side of the main cavity 11 and is communicated with the main cavity 11, a plurality of light sources 2 are disposed in the first installation cavity 121, the plurality of light sources 2 include a first light source 21 and a second light source group, and the first light source 21 is disposed at one end of the first installation cavity 121 far away from the light guide pipe 3; the second light source 2 group is arranged on one side of the first light source 21 close to the light guide pipe 3 and comprises a plurality of light sources 2 which are arranged in the first installation cavity 121 at intervals along the direction far away from the light guide pipe 3; the optical path adjusting device 4 includes a reflective mirror 42 and a plurality of dichroic mirrors 41, the reflective mirror 42 is disposed in the main cavity 11 and is disposed corresponding to the first light source 21, the plurality of dichroic mirrors 41 is disposed in the main cavity 11 and is disposed corresponding to the plurality of light sources 2 in the second light source group, so as to direct the light beam emitted by the light source 2 corresponding to the first mounting cavity 121 toward the light guide; the wavelength of each light source 2 is gradually increased or decreased in a direction approaching the light guide 3.
It should be noted that the first light source 21 includes one light source 2, and the second light source 2 group includes at least one light source 2. In this embodiment, the second light source 2 group includes two light sources 2, the first light source 21 and the three light sources 2 of the second light source 2 group are disposed at intervals in the first installation cavity 121 along a direction away from the light guide pipe 3, specifically, the first installation cavity 121 further includes a first bypass cavity 121a, a second bypass cavity 121b and a third bypass cavity 121c distributed in sequence along a direction close to the light guide pipe 3, so as to respectively install the three light sources 2, a barrier 123 is disposed between the first bypass cavity 121a and the second bypass cavity 121b, and a barrier 123 is disposed between the second bypass cavity 121b and the third bypass cavity 121c, so as to separate the three light sources 2, each being independent, and facilitating control of divergence angles thereof. The dichroic mirror 41 is provided with two bypass cavities corresponding to the second bypass cavity 121b and the third bypass cavity 121c, the two dichroic mirrors 41 are arranged at an included angle of 45 ° with respect to the main optical path in the main cavity 11, the optical paths of the light sources 2 in the first installation cavity 121 are arranged at an included angle of 45 ° with respect to the corresponding dichroic mirror 41, and the light sources 2 are arranged on the side of the corresponding dichroic mirror 41 facing the light guide tube 3; since there is no other light source 2 on the side of the first light source 21 away from the light guide 3, the first bypass cavity 121a is correspondingly provided with a reflective mirror 42 for directly reflecting the light beam of the first light source 21 into the main light path, an included angle between the reflective mirror 42 and the main light path in the main cavity 11 is set at 45 °, an included angle between the reflective mirror 42 and the light path of the first light source 21 is set at 45 °, and a reflective surface of the reflective mirror 42 faces the first light source 21. In the direction approaching the light guide 3, the wavelength of each light source 2 is gradually increased or gradually decreased, and the three light sources 2 have the wavelengths λ 1, λ 2 and λ 3 in sequence along the direction approaching the light guide 3, when λ 1> λ 2> λ 3, the dichroic mirror 41 is a long-wave dichroic mirror, light larger than the threshold wavelength thereof will be completely transmitted, and light smaller than the wavelength will be completely reflected, and at this time, the two dichroic mirrors 41 have the threshold wavelengths λ 4 and λ 5 in sequence along the direction approaching the light guide 3, wherein λ 1> λ 4> λ 2, λ 2> λ 5> λ 3; in contrast, when λ 1< λ 2< λ 3, the dichroic mirrors 41 are short-wave dichroic mirrors, light smaller than the threshold wavelength thereof will be completely transmitted, and light larger than the threshold wavelength thereof will be completely reflected, and then the two dichroic mirrors 41 set the threshold wavelengths λ 4 and λ 5 in the direction approaching the light guide 3, wherein λ 1< λ 4< λ 2, and λ 2< λ 5< λ 3. More specifically, in a preferred embodiment, the three light sources 2 of the first mounting cavity 121 are LED lamp beads with three different wavelengths, namely, red, green and blue, which can be combined into various colors because of the three primary colors of red, green and blue, and the light sources 2 with the three colors of red, green and blue are sequentially arranged along the direction close to the light guide tube 3, and at this time, the dichroic mirror 41 is a short-wave dichroic mirror; the light sources 2 of the three colors of red, green and blue may also be sequentially arranged along a direction away from the light guide 3, and at this time, the dichroic mirror 41 is a long-wave dichroic mirror.
Referring to fig. 3 and 4, in a third embodiment of the present invention, the number of the installation cavities 12 is multiple, the installation cavities 12 include two first installation cavities 121 and a second installation cavity 122, the two first installation cavities 121 are oppositely disposed on two sides of the main cavity 11 and are communicated with the main cavity 11, and the light sources 2 are respectively disposed in the two first installation cavities 121; the second installation cavity 122 is arranged at the other end of the main cavity 11, and the light source 2 is arranged in the second installation cavity 122; the optical path adjusting device 4 includes a dichroic prism 43 formed by connecting two of four identical right-angle prisms 431, the dichroic prism 43 is disposed in the main cavity 11 and located between the two second mounting cavities 122, two end surfaces of the right-angle prisms 431 are isosceles right triangles, two right-angle surfaces corresponding to right-angle sides of two adjacent right-angle prisms 431 are connected two by two to form the dichroic prism 43, the dichroic prism 43 includes two opposite square end surfaces and four rectangular side surfaces, the four rectangular side surfaces are three incident surfaces and one exit surface respectively, the three incident surfaces respectively face the two first mounting cavities 121 and the second mounting cavities 122, and the exit surface faces the light guide pipe 3 and is used for outputting light beams; the wavelength of the light source 2 in the second mounting cavity 122 is λ 1, and the two light sources 2 in the two first mounting cavities 121 are λ 2 and λ 3, respectively, where λ 1> λ 2> λ 3; the first right-angle surface of each right-angle prism 431 is plated with a first film 432, the second right-angle surface is plated with a second film 433, the right-angle surfaces of two adjacent right-angle prisms 431 plated with the same film are connected in pairs, and the first film 432 totally transmits light beams with the wavelengths of lambda 1 and lambda 3 and totally reflects light beams with the wavelength of lambda 2; the second film 433 is totally transmissive to light beams with wavelengths λ 1 and λ 2 and totally reflective to light beams with wavelength λ 3.
It should be noted that the right-angle surfaces of the four right-angle prisms 431 are connected by gluing, and the first film 432 and the second film 433 are dichroic beam splitting films, and can selectively reflect and transmit light in different directions. In this embodiment, the first film 432 and the second film 433 form a cross X shape on the square end surface, and an included angle between the first film 432 and the second film 433 and a main light path of the main cavity 11 is 45 °. In the present embodiment, the optical path of each light source 2 is the same, and thus has the same output distribution.
In an embodiment of the present invention, the cross-sectional dimension of the mounting cavity 12 is gradually reduced in a direction away from the main cavity 11 to prevent the divergence angle of the light source 2 from being blocked.
In an embodiment of the present invention, reflective films are disposed on inner walls of the main cavity 11 and the installation cavity 12, so as to reduce absorption of light emitted by the light source 2 by the inner wall of the housing 1, and improve light output efficiency.
In an embodiment of the present invention, the cross-sectional dimension of the light guide 3 is gradually changed. In the actual use process, there are different requirements for the size of the irradiation light spot, the cross-sectional dimension of the light exit end 32 of the light guide tube 3 may be larger than the cross-sectional dimension of the light guide end 31, may be equal to the cross-sectional dimension of the light guide end 31, or may be smaller than the cross-sectional dimension of the light guide end 31, and changes according to the actual requirements, and due to the shaping effect of the light guide tube 3, regardless of the divergence angle of the finally output light beam, the lights with different wavelengths are uniform, and the situation that the light beam distribution is not uniform when the divergence angle is expanded does not occur.
In the embodiment of the present invention, a plurality of condensing lenses 5 are further disposed in the housing 1, and the plurality of condensing lenses 5 are correspondingly disposed between the plurality of light sources 2 and the light path adjusting device 4, so as to condense the light beams emitted by the light sources 2. The condensing lens 5 is specifically a convex lens, and considering that there may be a certain difference in divergence angles of different lamp beads, light emitted by the light source 2 may not be completely transmitted to the light guide end 31, which causes energy loss, the light path direction is changed by arranging the condensing lens 5 to firstly converge light beams emitted by the light source 2, and then the light path direction is changed by the light path adjusting device 4, so that light with a large divergence angle can be emitted from the light guide pipe 3 after passing through the condensing lens 5, thereby improving the output efficiency of the light source 2 and ensuring high brightness of the light.
In the embodiment of the present invention, the housing 1 is further provided with a plurality of circuit boards 6, the plurality of light sources 2 are correspondingly connected to the plurality of circuit boards 6, and a heat sink 7 is disposed on a side of the circuit board 6 facing away from the light sources 2, so as to dissipate heat from the circuit boards 6. The circuit board 6 is used for providing power to the light source 2 and controlling the light emission of the light source, generally, in order to ensure high brightness of the light source 2, the circuit board 6 needs to maintain high output power, a large amount of heat is generated at this time, and in order to ensure that the circuit board 6 can continuously output high power, a heat sink 7 is arranged on a side of the circuit board 6 opposite to the light source 2 to dissipate heat of the circuit board 6.
It should be noted that the form of the heat sink 7 is not specifically limited in this embodiment, and may be a heat sink or a heat dissipation plate, in this embodiment, the heat sink 7 is a heat sink, and then the heat dissipation efficiency is improved by air cooling heat dissipation or liquid cooling heat dissipation.
The invention also provides lens module detection equipment which comprises an LED light source module, and the specific structure of the LED light source module refers to the embodiment. It can be understood that, since the lens module detecting device according to the present invention adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
Furthermore, the lens module detection equipment is an autocollimator or a collimator, the LED light source is used as the illumination detection equipment, the brightness is higher, and the detection efficiency of the optical lens and the module can be effectively improved. The detection precision of the optical lens under different wavelengths is effectively improved, and meanwhile, because the light of the LED light sources can be coaxially emitted, the colored light of each light source 2 can be accurately controlled and mixed, so that more spectrum selections are provided for a detection system.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. An LED light source module, comprising:
a housing;
the light sources are arranged in the shell, and the light emitting wavelengths of the light sources are different;
the light guide pipe is provided with a light guide end extending into the shell and a light outlet end exposing out of the shell, and is used for shaping and emitting light emitted by the light sources; and the number of the first and second groups,
and the light path adjusting device is arranged between the plurality of light sources and the light guide end of the light guide pipe and is used for transmitting the light emitted by each light source to the light guide end of the light guide pipe.
2. The LED light source module of claim 1, wherein the interior cavity of the housing comprises:
a through hole is formed in one end wall of the main cavity, and the light guide pipe is installed in the through hole; and the number of the first and second groups,
the installation cavity is formed at one side and/or the other end of the main cavity, the installation cavity is communicated with the main cavity, and the installation cavity is used for installing a plurality of light sources.
3. The LED light source module of claim 2, wherein the mounting cavities are provided in plurality, the plurality of mounting cavities comprising:
the first installation cavity is positioned on the side of the main cavity and communicated with the main cavity, a plurality of light sources are arranged in the first installation cavity, and the light sources are arranged at intervals in the first installation cavity along the direction far away from the light guide pipe; and the number of the first and second groups,
the second installation cavity is arranged at the other end of the main cavity, and the light source is arranged in the second installation cavity;
the light path adjusting device comprises a plurality of dichroic mirrors, the plurality of dichroic mirrors are arranged in the main cavity and correspond to the plurality of light sources, and light beams emitted by the light sources in the corresponding first installation cavities are emitted to the light guide pipe;
and the wavelength of each light source is gradually increased or gradually decreased in the direction close to the light guide pipe.
4. The LED light source module of claim 2, wherein the mounting cavity comprises a first mounting cavity that is located laterally of and in communication with the main cavity, the first mounting cavity having a plurality of the light sources disposed therein, the plurality of light sources comprising:
the first light source is arranged at one end of the first installation cavity, which is far away from the light guide pipe; and the number of the first and second groups,
the second light source group is arranged on one side, close to the light guide pipe, of the first light source and comprises a plurality of light sources which are arranged in the first installation cavity at intervals along the direction far away from the light guide pipe;
the light path adjusting device comprises a reflecting mirror and a plurality of dichroic mirrors, the reflecting mirror is arranged in the main cavity and is arranged corresponding to the first light source, the dichroic mirrors are arranged in the main cavity and are arranged corresponding to the light sources in the second light source group, and light beams emitted by the light sources in the corresponding first installation cavities are emitted to the light guide pipe;
and the wavelength of each light source is gradually increased or gradually decreased in the direction close to the light guide pipe.
5. The LED light source module of claim 2, wherein the mounting cavities are provided in plurality, the plurality of mounting cavities comprising:
the two first installation cavities are oppositely arranged on two sides of the main cavity and communicated with the main cavity, and the light sources are respectively arranged in the two first installation cavities; and the number of the first and second groups,
the second installation cavity is arranged at the other end of the main cavity, and the light source is arranged in the second installation cavity;
the light path adjusting device comprises dichroic prisms formed by connecting four identical right-angle prisms in pairs, the dichroic prisms are arranged in the main cavity and located between the two first mounting cavities, two end faces of each right-angle prism are isosceles right triangles, two right-angle faces corresponding to right-angle sides of two adjacent right-angle prisms are connected in pairs to form the dichroic prisms, each dichroic prism comprises two opposite square end faces and four rectangular side faces, the four rectangular side faces are three incident faces and one emergent face respectively, the three incident faces correspondingly face the two first mounting cavities and the second mounting cavity respectively, the emergent faces are arranged towards the light guide pipe, and the emergent faces are used for outputting light beams;
the wavelength of the light source in the second installation cavity is lambda 1, the two light sources in the two first installation cavities are lambda 2 and lambda 3 respectively, wherein lambda 1> lambda 2> lambda 3;
the first right-angle surface of each right-angle prism is plated with a first film, the second right-angle surface of each right-angle prism is plated with a second film, the right-angle surfaces of two adjacent right-angle prisms plated with the same film are connected in pairs, and the first film is completely transmissive to light beams with the wavelengths of lambda 1 and lambda 3 and totally reflective to light beams with the wavelengths of lambda 2; the second film is totally transmissive to light beams having wavelengths λ 1 and λ 2 and totally reflective to light beams having a wavelength λ 3.
6. The LED light source module of claim 2, wherein the mounting cavity has a cross-sectional dimension that tapers away from the main cavity.
7. The LED light source module of claim 2, wherein the main cavity and the inner wall of the mounting cavity are provided with reflective films.
8. The LED light source module of claim 1, wherein the cross-sectional dimension of the light pipe is graded.
9. The LED light source module of any one of claims 1 to 8, wherein a plurality of condensing lenses are further disposed in the housing, and the plurality of condensing lenses are correspondingly disposed between the plurality of light sources and the light path adjusting device for condensing the light beams emitted by the light sources.
10. The LED light source module as claimed in any one of claims 1 to 8, wherein a plurality of circuit boards are further disposed on the housing, a plurality of light sources are correspondingly connected to the plurality of circuit boards, and a heat sink is disposed on a side of the circuit board facing away from the light sources for dissipating heat from the circuit boards.
11. A lens module inspection apparatus comprising the LED light source module according to any one of claims 1 to 10.
12. The lens module inspection apparatus according to claim 11, wherein the lens module inspection apparatus is an autocollimator or a collimator.
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| CN202210902108.4A CN114963033A (en) | 2022-07-29 | 2022-07-29 | LED light source module and lens module detection equipment |
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| CN202210902108.4A CN114963033A (en) | 2022-07-29 | 2022-07-29 | LED light source module and lens module detection equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052915A (en) * | 2004-10-29 | 2007-10-10 | 夏普株式会社 | Optical integrator, illuminator and projection image display |
| CN101248384A (en) * | 2005-02-09 | 2008-08-20 | 微阳有限公司 | Etendue efficient combination of multiple light sources |
| CN101652699A (en) * | 2007-02-28 | 2010-02-17 | 康宁股份有限公司 | Color combiner for solid-state light sources |
| US20110007284A1 (en) * | 2009-07-09 | 2011-01-13 | Raytheon Company | Method and apparatus for use in projecting images |
| CN204240961U (en) * | 2014-12-11 | 2015-04-01 | 四川云盾光电科技有限公司 | A kind of twin shaft converges two detecting polarization photoelectric auto-collimator |
-
2022
- 2022-07-29 CN CN202210902108.4A patent/CN114963033A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052915A (en) * | 2004-10-29 | 2007-10-10 | 夏普株式会社 | Optical integrator, illuminator and projection image display |
| CN101248384A (en) * | 2005-02-09 | 2008-08-20 | 微阳有限公司 | Etendue efficient combination of multiple light sources |
| CN101652699A (en) * | 2007-02-28 | 2010-02-17 | 康宁股份有限公司 | Color combiner for solid-state light sources |
| US20110007284A1 (en) * | 2009-07-09 | 2011-01-13 | Raytheon Company | Method and apparatus for use in projecting images |
| CN204240961U (en) * | 2014-12-11 | 2015-04-01 | 四川云盾光电科技有限公司 | A kind of twin shaft converges two detecting polarization photoelectric auto-collimator |
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