CN210981733U - Laser visible light composite radiation source - Google Patents
Laser visible light composite radiation source Download PDFInfo
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- CN210981733U CN210981733U CN201921955708.7U CN201921955708U CN210981733U CN 210981733 U CN210981733 U CN 210981733U CN 201921955708 U CN201921955708 U CN 201921955708U CN 210981733 U CN210981733 U CN 210981733U
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- laser
- visible light
- light source
- integrating sphere
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Abstract
The utility model relates to a laser visible light composite radiation source, which adopts an integrating sphere to realize the homogenization of radiation beams of the radiation source, the integrating sphere is provided with a visible light source and a laser source interface, a 1064nm laser is led in by adopting an optical fiber, a bromine tungsten lamp is adopted as the visible light source, the laser and the visible light source can be controlled independently, and a single uniform light can be generated at a light outlet of the integrating sphere, and a composite uniform light can also be generated; the composite radiation source is mainly used for providing a uniform laser simulation radiation source and a visible light source for calibration for multi-optical axis calibration and multi-optical axis detection equipment, and has the advantages of simple structure, good uniformity, modularization and the like.
Description
Technical Field
The invention belongs to the field of photoelectricity, and relates to a laser visible light composite radiation source.
Background
Along with the multiband photoelectric sensor system integrating visible light, infrared thermal imaging, laser ranging and the like, the system is widely applied to weapon equipment platforms such as helicopter photoelectric pod, vehicle-mounted photoelectric stabilized aiming system, carrier-borne photoelectric mast, airborne photoelectric radar and the like, and the hitting precision and operational efficiency of the weapon equipment are greatly improved, so that the multiband multi-optical-axis consistency is used as an important parameter of the performance of the photoelectric equipment, and the multi-optical-axis consistency becomes the basic guarantee of the tracking and laser irradiation of the multi-sensor photoelectric weapon equipment.
The existing multiband multi-optical-axis equipment is used for calibration and optical axis detection, switching of a single-waveband radiation source is generally carried out in a mode that a target wheel rotates or a light source is plugged, the radiation source is directly coupled into a light path basically without homogenization treatment, the position precision and the repetition precision are low, the operation is complex, the universality is poor, and the requirement that the consistency precision of multiple optical axes is higher and higher is difficult to meet.
Disclosure of Invention
Technical problem to be solved
In order to avoid the defects of the prior art, the invention provides a laser visible light composite radiation source, which avoids the defects of the radiation source of the existing multi-optical-axis consistency detection equipment, is used for multi-optical-axis consistency calibration and detection of an airborne photoelectric product and laser receiving sensitivity test, and solves the problems of complex calibration, debugging and maintenance operation, insufficient precision and poor universality of the airborne photoelectric product in a laboratory and an external field.
Technical scheme
A laser visible light composite radiation source is characterized by comprising an integrating sphere 1, a supporting base 2, a light outlet 3, a visible light source 4, a first blocking screen 5, a laser light source interface 6, a photoelectric detector 8 and a second blocking screen 9; the supporting base 2 is provided with an integrating sphere 1, a visible light source 4 is arranged in the center of one side hemisphere of the integrating sphere 1, and a light outlet 3, a laser source interface 6 and a photoelectric detector 8 are arranged on the opposite side hemisphere; the first blocking screen 5 and the second blocking screen 9 are positioned in the cavity of the integrating sphere 1, the first blocking screen 5 and the visible light source 4 are positioned in the same hemisphere and are opposite to the visible light source 4, and the second blocking screen 9 is opposite to the photoelectric detector 8 and is in the same hemisphere with the photoelectric detector 8; and a barium sulfate coating for realizing diffuse reflection of radiation rays is sprayed inside the integrating sphere 1.
A standby laser source interface 7 is arranged on the hemisphere on the same side of the laser source interface 6.
The light outlet 3 is provided with a dust plug.
The laser light source interface 6 and the standby laser light source interface 7 adopt SMA905 optical fiber coupling interfaces.
The position of the light outlet 3 is matched with the focal plane of the optical path of the multi-optical axis detection equipment, and the coupling of uniform visible light, laser radiation and the detection optical path of the multi-optical axis detection equipment is realized by adopting a method of illuminating a target plate at the focal plane in a close range.
Advantageous effects
The invention provides a laser visible light composite radiation source, which adopts an integrating sphere to realize the homogenization of radiation beams of the radiation source, wherein the integrating sphere is provided with a visible light source and a laser source interface, 1064nm laser is led in by adopting an optical fiber, a bromine tungsten lamp is used as a visible light source, the laser and the visible light source can be controlled independently, and single uniform light and composite uniform light can be generated at a light outlet of the integrating sphere; the composite radiation source is mainly used for providing a uniform laser simulation radiation source and a visible light source for calibration for multi-optical axis calibration and multi-optical axis detection equipment, and has the advantages of simple structure, good uniformity, modularization and the like.
Drawings
FIG. 1 is a schematic diagram of a laser-visible composite radiation source;
FIG. 2 is a front view of a laser-visible composite radiation source;
FIG. 3 is a side view of a laser-visible composite radiation source;
FIG. 4 is a bottom view of the laser-visible composite radiation source;
the system comprises an integrating sphere 1, a supporting base 2, a light outlet 3, a visible light source 4, a first blocking screen 5, a laser light source interface 6, a standby laser light source interface 7, a photoelectric detector 8 and a second blocking screen 9.
Detailed Description
The invention will now be further described with reference to the following examples and drawings:
referring to fig. 1, after the radiation beam of the visible light source 4 undergoes at least two diffuse reflections on the inner wall of the integrating sphere 1, uniform visible light radiation is formed at the light outlet 3 for optical axis calibration or testing; the laser source interface 6 or the spare laser source interface 7 is connected to 1064nm laser through the SMA905 optical fiber interface, and after the laser beam undergoes at least two times of diffuse reflection on the inner wall of the sub-sphere 1, uniform laser radiation is formed at the light outlet 3 for optical axis calibration or laser receiving sensitivity test.
The integrating sphere 1 is made of stainless steel, the inner diameter of the integrating sphere is phi 100mm, the integrating sphere is divided into two hemispheres, barium sulfate is sprayed inside the integrating sphere 1, the reflectivity is more than 98%, multiple diffuse reflection of radiation rays is achieved, plastic spraying treatment is conducted on the outside of the integrating sphere, the diameter of the light outlet 3 is phi 15mm, the diameter of the light outlet is just opposite to the visible light source 4, the light outlet is located in the same hemisphere with the laser light source interface 6, the standby laser light source interface 7, the photoelectric detector 8 and the second baffle 9, and the light outlet 3 is provided with a dust plug.
The visible light source 4 adopts a 12V/10W bromine tungsten lamp and is connected with a power supply by adopting an aviation plug; the laser light source interface 6 and the standby laser light source interface 7 are backups of each other, an SMA905 optical fiber interface is adopted to introduce 1064nm laser, and dust covers are provided, referring to fig. 2 and 4, the included angle between the laser light source interface 6 and the standby laser light source interface 7 on the YOZ plane is 60 degrees, the included angle between the laser light source interface and the Y-axis on the YOZ plane is 30 degrees, and the included angle between the YOX plane and the Y-axis is 30 degrees.
The first blocking screen 5 and the second blocking screen 9 are made of stainless steel, barium sulfate is sprayed on the surfaces of the first blocking screen 5, the first blocking screen 5 is installed on the hemisphere of the integrating sphere 1 on the same side of the visible light source 4 with reference to fig. 3 and 4, the size of the first blocking screen 1 is phi 50mm, and the distance between the installation hole and the Y axis on the X axis of the XOZ plane is 12 mm; the second screen 9 is positioned on the hemisphere of the integrating sphere 1 at the same side of the photoelectric detector 8, and the size of the first screen 1 is phi 25 mm.
Referring to fig. 2, 3 and 4, the photodetector 8 and the light outlet 3 are located on the same side hemisphere, the photodetector 8 uses a silicon photodiode to monitor the radiation beam, and forms a closed loop with the radiation source, an included angle between the XOY plane and the reverse extension line of the Y axis is 45 °, and the YOZ plane is located on the Y axis.
To sum up the utility model discloses an integrating sphere realizes 1064nm laser and the even radiation of visible light wave band light source at integrating sphere light-emitting window, switches different radiation sources through not changing the physical position, realizes the independent or the even radiation of 1064nm laser and visible light, and the radiation homogeneity can reach more than 95%, and the composite light source device possesses simple structure, homogeneity advantage such as good and modularization, can be for many optical axes calibration, many optical axes check out test set provide even laser simulation radiation source and calibration with visible light source.
Claims (4)
1. A laser visible light composite radiation source is characterized by comprising an integrating sphere (1), a supporting base (2), a light outlet (3), a visible light source (4), a first blocking screen (5), a laser light source interface (6), a photoelectric detector (8) and a second blocking screen (9); the supporting base (2) is provided with an integrating sphere (1), the visible light source (4) is arranged in the center of one side hemisphere of the integrating sphere (1), and the other side hemisphere is provided with a light outlet (3), a laser source interface (6) and a photoelectric detector (8) correspondingly; the first blocking screen (5) and the second blocking screen (9) are positioned in a cavity of the integrating sphere (1), the first blocking screen (5) and the visible light source (4) are positioned in the same hemisphere and are opposite to the visible light source (4), and the second blocking screen (9) is opposite to the photoelectric detector (8) and is in the same hemisphere with the photoelectric detector (8); and a barium sulfate coating for realizing diffuse reflection of radiation rays is sprayed inside the integrating sphere (1).
2. The laser-visible composite radiation source of claim 1, wherein: a standby laser source interface (7) is arranged on the hemisphere on the same side of the laser source interface (6).
3. The laser-visible composite radiation source of claim 1 or 2, wherein: the light outlet (3) is provided with a dustproof plug.
4. The laser-visible composite radiation source of claim 1 or 2, wherein: the laser light source interface (6) and the standby laser light source interface (7) adopt SMA905 optical fiber coupling interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955708.7U CN210981733U (en) | 2019-11-13 | 2019-11-13 | Laser visible light composite radiation source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955708.7U CN210981733U (en) | 2019-11-13 | 2019-11-13 | Laser visible light composite radiation source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210981733U true CN210981733U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921955708.7U Active CN210981733U (en) | 2019-11-13 | 2019-11-13 | Laser visible light composite radiation source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210981733U (en) |
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2019
- 2019-11-13 CN CN201921955708.7U patent/CN210981733U/en active Active
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