CN111856768A - Coaxial module of two light based on dichroscope - Google Patents
Coaxial module of two light based on dichroscope Download PDFInfo
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- CN111856768A CN111856768A CN202010757078.3A CN202010757078A CN111856768A CN 111856768 A CN111856768 A CN 111856768A CN 202010757078 A CN202010757078 A CN 202010757078A CN 111856768 A CN111856768 A CN 111856768A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
Abstract
The invention provides a double-light coaxial module based on a dichroic mirror, relates to the technical field of photoelectricity, and solves the technical problems that a double-light module in the prior art is complex in structure, large in size and complex in adjustment operation. The double-light coaxial module based on the dichroic mirror comprises a module main body, a first laser emission device, a second laser emission device and a dichroic beam splitter, wherein the module main body is provided with a beam splitter slot, a first emission device slot and a second emission device slot; the first laser beam emitted by the first laser emitting device can irradiate the first surface of the dichroic beam splitter and is reflected by the first surface; the second laser beam emitted by the second laser emitting device can irradiate the second surface of the dichroic beam splitter and is emitted from the first surface of the dichroic beam splitter after being refracted by the dichroic beam splitter and coaxially overlapped with the reflected first laser beam, and the laser beam after coaxial overlapping is emitted from the light outlet of the module main body. The invention is used for providing a double optical module with exquisite structure and simple adjustment and operation.
Description
Technical Field
The invention relates to the technical field of photoelectricity, in particular to a double-light coaxial module based on a dichroic mirror.
Background
The dual optical module has many applications, for example, it can be applied to a laser aiming device (laser aiming device) of a firearm in outdoor sports such as hunting, shooting training, etc., wherein the invisible light band is used for training, and the visible light band can be used for correction.
The applicant has found that the prior art has at least the following technical problems:
the double-optical module in the existing market is two independent laser beams, and then the light beams are made into parallel light beams or light beams intersected at a certain point through respective independent adjusting systems, so that the coaxial output of the two light beams cannot be realized. Resulting in a complex structure, large volume, and complex adjustment and operation.
Disclosure of Invention
The invention aims to provide a double-light coaxial module based on a dichroic mirror, which aims to solve the technical problems of complex structure, large volume and complex adjustment and operation of the double-light module in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a double-light coaxial module based on a dichroic mirror, which comprises a module main body, a first laser emission device, a second laser emission device and a dichroic beam splitter, wherein:
a spectroscope slot, a first emitting device slot and a second emitting device slot are arranged on the module main body, the spectroscope slot is respectively communicated with the first emitting device slot and the second emitting device slot, and the dichromatic spectroscope, the first laser emitting device and the second laser emitting device are respectively inserted into the spectroscope slot, the first emitting device slot and the second emitting device slot;
the first laser beam emitted by the first laser emitting device can irradiate the first surface of the dichroic beam splitter and is reflected by the first surface of the dichroic beam splitter; the second laser beam emitted by the second laser emitting device can be irradiated to the second surface of the dichroic beam splitter, refracted by the dichroic beam splitter, emitted from the first surface of the dichroic beam splitter and coaxially overlapped with the first laser beam reflected by the first surface of the dichroic beam splitter, and the coaxially overlapped first laser beam and second laser beam are emitted from a light outlet on the module main body.
Further, the module main body comprises a first arm and a second arm which are mutually right-angled and mutually connected, the first emitting device slot and the second emitting device slot are respectively arranged along the axial direction of the first arm and the second arm, the spectroscope slot is obliquely arranged between the first arm and the second arm, the spectroscope slot is respectively communicated with the first emitting device slot and the second emitting device slot, and the included angles between the axial line of the first arm and the axial line of the second arm and the spectroscope slot are both 45 degrees; the light outlet on the module main body is arranged on the first arm.
Further, the light outlet of the module main body is provided with a light outlet bulb, a light outlet channel is arranged in the light outlet bulb, and the first laser beam and the second laser beam after coaxial coincidence sequentially pass through the light outlet in the module main body and the light outlet channel to be emitted.
Further, the light-emitting ball head is in threaded connection with the module main body.
Furthermore, the inner surface of a light-emitting channel of the light-emitting ball head is provided with black extinction threads.
Further, a second circumferential gap exists between the second laser emitting device and the second emitting device slot, and a radial adjusting device for adjusting the second circumferential gap is arranged on the module main body.
Further, radial adjusting device is for adjusting the jackscrew, it runs through to adjust the jackscrew the module main part of second emitter slot circumference, just the tip of adjusting the jackscrew is contradicted and is being inserted and establish in the circumference of the second laser emission device in the second emitter slot.
Further, the number of the adjusting jackscrews is four.
Furthermore, a first circumferential gap exists between the first laser emitting device and the first emitting device slot, and a radial adjusting device for adjusting the first circumferential gap is arranged on the module main body.
Further, the dichroic beam splitter comprises a beam splitter body and coating layers on two surfaces of the beam splitter body, wherein the coating layers are interference type hard dielectric films.
The double-light coaxial module based on the dichroic mirror has the beneficial effects that:
the invention fixes the dichroic beam splitter (i.e. dichroic mirror), the first laser emission device and the second laser emission device in the corresponding slots respectively by using a module main body, the surface of the dichroic mirror can refract the laser beam of a certain wave band and reflect the laser of another wave band.
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 drawings without creative efforts.
FIG. 1 is an exploded view of a dichroic mirror based dual-optic coaxial module of the present invention;
fig. 2 is a schematic optical path diagram of a dual-optical coaxial module based on a dichroic mirror according to the present invention.
In the figure: 1. a dichroic beam splitter; 2. a light-emitting bulb; 3. a first laser emitting device; 31. a first laser beam; 4. adjusting a jackscrew; 5. a second laser emitting device; 51. a second laser beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 1 and fig. 2, the present invention provides a dual-optical coaxial module based on a dichroic mirror, which comprises a module main body, a first laser emitting device 3, a second laser emitting device 5 and a dichroic beam splitter 1; the module main body is provided with a spectroscope slot, a first emitting device slot and a second emitting device slot, and the dichroic spectroscope 1, the first laser emitting device 3 and the second laser emitting device 5 are respectively inserted into the spectroscope slot, the first emitting device slot and the second emitting device slot;
the first laser beam 31 emitted by the first laser emitting device 3 can be irradiated to the first surface of the dichroic beam splitter 1 and reflected by the first surface of the dichroic beam splitter 1; the second laser beam 51 emitted by the second laser emitting device 5 can irradiate the second surface of the dichroic beam splitter 1, is refracted by the dichroic beam splitter 1, then is emitted from the first surface of the dichroic beam splitter 1, and is coaxially overlapped with the first laser beam 31 reflected by the first surface of the dichroic beam splitter 1, and the coaxially overlapped first laser beam 31 and second laser beam 51 are emitted from the light outlet on the module body.
The invention fixes the dichromatic spectroscope 1, the first laser emission device 3 and the second laser emission device 5 in the corresponding slots respectively by using a module main body, the surface of the dichromatic spectroscope can refract the laser beam of a certain wave band and reflect the laser of another wave band, in the invention, the dichromatic spectroscope reflects the first laser beam 31 and refracts the second laser beam 51, when the refracted light beam of the second laser emission device 5 and the reflected light beam of the reflected laser coincide, the two laser beams of different wave bands realize coaxial output, compared with the double-optical module in the prior art, the invention has simple and exquisite structure, small volume and convenient assembly and disassembly.
As an optional implementation mode, the module main body comprises a first arm and a second arm which are mutually right-angled and mutually connected, a first emitting device slot and a second emitting device slot are respectively arranged along the axial direction of the first arm and the second arm, a spectroscope slot is obliquely arranged between the first arm and the second arm and is respectively communicated with the first emitting device slot and the second emitting device slot, and included angles between the axial line of the first arm and the axial line of the second arm and the spectroscope slot are both 45 degrees; the light outlet on the module main body is arranged on the first arm.
The module main body comprises a first arm and a second arm which are mutually right-angled and mutually connected, an opening of a first transmitting device slot is arranged on the end part of the first arm and the first transmitting device slot is arranged along the axial direction of the first arm, similarly, an opening of a second transmitting device slot is arranged on the end part of the second arm and the second transmitting device slot is arranged along the axial direction of the second arm, and a first laser transmitting device 3 and a second laser transmitting device 5 are respectively inserted from the openings of the end parts of the first arm and the second arm during installation; the spectroscope slot is arranged at a right angle formed by the first arm and the second arm and bisects the right angle, namely, the included angles between the axial line of the first arm and the axial line of the second arm and the spectroscope slot are both 45 degrees;
in this embodiment, the cross sections of the first arm and the second arm are square, and the opening of the dichroic mirror slot is disposed at the common edge of the first arm and the second arm, so that the dichroic mirror 1 can be inserted obliquely, and certainly, the opening of the dichroic mirror slot can also be disposed in the lateral direction, i.e., inserted from the lateral direction.
As an optional implementation manner, a light exit ball 2 is disposed at a light exit of the module main body, a light exit channel is disposed in the light exit ball 2, and the coaxially overlapped first laser beam 31 and the second laser beam 51 are emitted sequentially through the light exit and the light exit channel on the module main body.
Because the double-light coaxial module based on the dichroic mirror is usually required to be matched with an external mechanical structure for use, for example, the double-light coaxial module based on the dichroic mirror is arranged in a certain shell, and the actual position of the double-light coaxial module based on the dichroic mirror in the shell may need to be finely adjusted to adjust the light-emitting angle at the light-emitting port of the shell, the light-emitting ball head 2 is arranged at the light-emitting port of the module main body, so that the light-emitting ball head 2 can conveniently rotate in the shell with a spherical accommodating inner cavity and adjust the light-emitting angle at the light-emitting port of the shell.
As an optional implementation mode, the light-emitting ball head 2 is in threaded connection with the module body.
The light-emitting ball head 2 and the module main body can be disassembled and fixedly connected, so that the independent production and the respective replacement of each part are facilitated.
As an optional implementation manner, the inner surface of the light-emitting channel of the light-emitting ball 2 is provided with black extinction threads.
The black extinction thread arranged on the inner surface of the light-emitting channel of the light-emitting ball head 2 can perform diaphragm extinction treatment on the laser beam passing through the light-emitting channel, so that stray light is eliminated.
As an alternative embodiment, a second circumferential gap exists between the second laser emitting device 5 and the second emitting device slot, and a radial adjusting device for adjusting the second circumferential gap is arranged on the module body.
After the first laser emitting device 3 and the second laser emitting device 5 are respectively inserted into the first emitting device slot and the second emitting device slot, actually, due to a processing process, the emitted first laser beam 31 and the emitted second laser beam 51 may not completely coincide after being reflected and refracted, and a slight deflection angle may also exist, so that in order to make the first laser beam 31 and the second laser beam 51 completely coincide after being reflected and refracted, it is necessary to adjust at least an incident angle of one of the laser beams, therefore, a second circumferential gap is provided between the second laser emitting device 5 and the second emitting device slot, and a radial adjusting device is used to adjust the second laser emitting device 5 in a radial direction, so that the first laser beam 31 and the second laser beam 51 completely coincide after being reflected and refracted.
As an alternative embodiment, the radial adjusting device is an adjusting jackscrew 4, the adjusting jackscrew 4 penetrates through the module body part in the circumferential direction of the second launching device slot, and the end part of the adjusting jackscrew 4 abuts against the circumferential direction of the second laser launching device 5 inserted in the second launching device slot.
The jackscrew is utilized for adjustment, the structure is simple, the operation is easy, only the module main body on the circumferential wall of the slot of the second transmitting device is required to be provided with the jackscrew, and the radial position of the second laser transmitting device 5 in the slot of the second transmitting device can be adjusted by screwing the jackscrew in and screwing out.
As an alternative embodiment, the number of the jack screws 4 is adjusted to four.
In this embodiment, the cross section of the second arm is square, so that one adjusting jackscrew 4 is respectively arranged on a certain cross section of four side surfaces of the second arm, which is convenient for accurately adjusting the second laser emitting device 5 inserted in the slot of the second emitting device, of course, the cross section of the second arm may also be circular or in other shapes, and the number of adjusting jackscrews 4 may be less or more.
As an optional embodiment, a first circumferential gap exists between the first laser emitting device 3 and the first emitting device slot, and a radial adjusting device for adjusting the first circumferential gap is disposed on the module body.
Similar to the arrangement of the second laser emitting device 5 and the second emitting device slot, a first circumferential gap may be arranged between the first laser emitting device 3 and the first emitting device slot, and the adjusting jackscrew 4 is used to adjust the radial direction of the first laser emitting device 3, so that the first laser beam 31 and the second laser beam 51 are completely overlapped after being reflected and refracted.
As an optional embodiment, the dichroic beam splitter 1 includes a beam splitter body and coating layers on two sides of the beam splitter body, and the coating layers are interference type hard dielectric films.
The two surfaces of the spectroscope body are processed by a coating process, and based on the characteristic that the dichroic mirror is almost completely transparent to light with certain wavelength (wave band) and almost completely reflective to light with other wavelength (wave band), the light with certain wavelength is transmitted at 45 degrees, a light source is separated out to form a specific spectrum, and the light path direction of the spectrum is changed, so that the double-light coaxial module is manufactured. The dichroic beam splitter 1 has high penetration rate (penetration is more than 97%), high reflection efficiency (reflection is more than 99%), small absorption, small dispersion, less laser loss, clear color, no generation of stray light and no film surface division (same front and back effects);
the dichroic beam splitter is suitable for an interference type hard dielectric film, when light rays are incident at 45 degrees, the dichroic beam splitter can allow near infrared light to pass through and reflect visible light, a transmission area and a reflection area are obviously demarcated, and the dichroic beam splitter has a shorter cut-off wavelength and a smaller incident angle different from a colored glass optical filter.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a coaxial module of two light based on dichroic mirror which characterized in that includes module main part, first laser emission device, second laser emission device and dichromatic spectroscope, wherein:
a spectroscope slot, a first emitting device slot and a second emitting device slot are arranged on the module main body, the spectroscope slot is respectively communicated with the first emitting device slot and the second emitting device slot, and the dichromatic spectroscope, the first laser emitting device and the second laser emitting device are respectively inserted into the spectroscope slot, the first emitting device slot and the second emitting device slot;
the first laser emitting device and the second laser emitting device can emit laser beams with different wave bands; the first laser beam emitted by the first laser emitting device can be irradiated to the first surface of the dichroic beam splitter and reflected by the first surface of the dichroic beam splitter, the second laser beam emitted by the second laser emitting device can be irradiated to the second surface of the dichroic beam splitter, refracted by the dichroic beam splitter, emitted by the first surface of the dichroic beam splitter and coaxially overlapped with the first laser beam reflected by the first surface of the dichroic beam splitter, and the coaxially overlapped first laser beam and second laser beam are emitted from a light outlet on the module main body.
2. The dichroic mirror-based bi-optic coaxial module as claimed in claim 1, wherein the module body comprises a first arm and a second arm that are mutually orthogonal and connected, the first emitting device slot and the second emitting device slot are axially disposed along the first arm and the second arm, respectively, the dichroic mirror slot is obliquely disposed between the first arm and the second arm, and both the axial line of the first arm and the axial line of the second arm and the dichroic mirror slot form an included angle of 45 °; the light outlet on the module main body is arranged on the first arm.
3. The dichroic mirror-based dual-optical coaxial module as claimed in claim 1, wherein a light exit ball is disposed at the light exit of the module body, a light exit channel is disposed in the light exit ball, and the coaxially overlapped first laser beam and the second laser beam sequentially exit through the light exit and the light exit channel on the module body.
4. A dichroic mirror based bi-optic coaxial module as set forth in claim 3 wherein the light exit bulb is threaded to the module body.
5. A dichroic mirror-based bi-optic coaxial module as set forth in claim 3, wherein the inner surface of the light exit channel of the light exit bulb is provided with black extinction threads.
6. The dichroic mirror-based bifocal coaxial module according to claim 1, wherein a second circumferential gap exists between the second laser emitting device and the second emitting device slot, and a radial adjustment device for adjusting the second circumferential gap is provided on the module body.
7. The dichroic mirror-based bi-optic coaxial module as claimed in claim 6, wherein the radial adjusting means is an adjusting jackscrew, the adjusting jackscrew penetrates through a module body portion of the second emitting device slot circumference, and an end portion of the adjusting jackscrew abuts against a circumference of a second laser emitting device inserted in the second emitting device slot.
8. A dichroic mirror-based bi-optic coaxial module as set forth in claim 7, wherein the number of adjusting tips is four.
9. A dichroic mirror-based bi-optic coaxial module as set forth in claim 1, wherein a first circumferential gap exists between the first laser emitting device and the first emitting device slot, and a radial adjusting device for adjusting the first circumferential gap is disposed on the module body.
10. The dichroic mirror-based bi-optic coaxial module as set forth in claim 1, wherein said dichroic beamsplitter comprises a beamsplitter body and coatings on both sides of said beamsplitter body, said coatings being interference hard dielectric films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010757078.3A CN111856768A (en) | 2020-07-31 | 2020-07-31 | Coaxial module of two light based on dichroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010757078.3A CN111856768A (en) | 2020-07-31 | 2020-07-31 | Coaxial module of two light based on dichroscope |
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| Publication Number | Publication Date |
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| CN111856768A true CN111856768A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010757078.3A Pending CN111856768A (en) | 2020-07-31 | 2020-07-31 | Coaxial module of two light based on dichroscope |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698512A (en) * | 2020-12-31 | 2021-04-23 | 陕西奥润激光技术有限公司 | Laser simulation transmitting device based on double-optical coupling |
| CN112781438A (en) * | 2021-01-13 | 2021-05-11 | 陕西奥润激光技术有限公司 | Automatic rifle simulated shooting light source system based on double laser coupling |
| CN117784414A (en) * | 2024-02-28 | 2024-03-29 | 北京萨诺光电科技发展有限公司 | Visible light calibrator, laser device and calibration method |
-
2020
- 2020-07-31 CN CN202010757078.3A patent/CN111856768A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112698512A (en) * | 2020-12-31 | 2021-04-23 | 陕西奥润激光技术有限公司 | Laser simulation transmitting device based on double-optical coupling |
| CN112781438A (en) * | 2021-01-13 | 2021-05-11 | 陕西奥润激光技术有限公司 | Automatic rifle simulated shooting light source system based on double laser coupling |
| CN117784414A (en) * | 2024-02-28 | 2024-03-29 | 北京萨诺光电科技发展有限公司 | Visible light calibrator, laser device and calibration method |
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