CN210108680U - Testing device for transmittance of optical sight - Google Patents
Testing device for transmittance of optical sight Download PDFInfo
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- CN210108680U CN210108680U CN201920827699.7U CN201920827699U CN210108680U CN 210108680 U CN210108680 U CN 210108680U CN 201920827699 U CN201920827699 U CN 201920827699U CN 210108680 U CN210108680 U CN 210108680U
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- optical sight
- grating monochromator
- integrating sphere
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Abstract
The utility model discloses a belong to optical measurement technical field, specifically be a testing arrangement of optics sight transmittance, it includes: operation platform, camera bellows, light source, grating monochromator and computer, operation platform's preceding lateral wall top fixed mounting the camera bellows, lateral wall fixed mounting slide rail behind the inner chamber of camera bellows, eight regulation supports of the preceding lateral wall sliding connection of slide rail, every adjust the top of support from left to right in proper order fixed mounting light source, focusing mirror, foraminiferous baffle, collimating mirror, diaphragm, the optics that await measuring aim at utensil, short burnt lens and integrating sphere, operation platform's preceding lateral wall right side below fixed mounting the grating monochromator, operation platform's preceding lateral wall middle part fixed mounting the computer, this utility model has satisfied the test demand on the military affairs, and easy to operate, be difficult for receiving the interference of ambient light simultaneously, the more accurate comprehensive effect of test result.
Description
Technical Field
The utility model relates to an optical measurement technical field specifically is a testing arrangement of optics sight transmittance.
Background
An optical sight is a device that gives sniper firearms and automatic rifles an accurate aiming angle, allowing an average trajectory through the target. The direction angle and the elevation angle of the aiming target are well set by the aiming device, aiming parameters are given to the weapon to carry out shooting, and the trajectory is ensured to accurately pass through the target through continuous correction of the range and the direction.
As an optical device, the optical collimator can be said to be the most important index thereof, and the transmittance is the ratio of the outgoing light flux to the incoming light flux of an optical system. How to accurately and efficiently test the transmittance profile of an optical sight at visible wavelengths also becomes a crucial issue.
The optical sighting device transmissivity measuring device in the prior art is easy to have multiple wavelength scans, visible light and partial near infrared light cannot meet the test requirement on military, the operation is not easy, the interference of ambient light is easy to occur, the accuracy of the test result is required to be improved, and secondly, the applicability of the device is narrow, so that the optical sighting device transmissivity measuring device needs to be researched and developed urgently.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems with the conventional optical sight transmittance test device.
Therefore, the utility model aims at providing a testing arrangement of optics sight transmissivity can satisfy the test demand in the military, and easy to operate, is difficult for receiving the interference of ambient light simultaneously, and the test result is more accurate.
For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:
a device for testing optical sight transmittance, comprising: operation platform, camera bellows, light source, grating monochromator and computer, operation platform's preceding lateral wall top fixed mounting the camera bellows, lateral wall fixed mounting slide rail behind the inner chamber of camera bellows, eight regulation supports of the preceding lateral wall sliding connection of slide rail, every the top of adjusting the support from left to right in proper order fixed mounting light source, focusing mirror, foraminiferous baffle, collimating mirror, diaphragm, the optics that awaits measuring aim at utensil, short-focus lens and integrating sphere, operation platform's preceding lateral wall right side below fixed mounting the grating monochromator, operation platform's preceding lateral wall middle part fixed mounting the computer, the grating monochromator with the computer passes through wire electric connection.
As a preferred embodiment of the testing device for optical sight transmittance of the present invention, wherein: the top of the camera bellows is connected with an upper cover through a hinge, and the left side and the right side of the upper cover are fixedly installed with the camera bellows through damping telescopic rods.
As a preferred embodiment of the testing device for optical sight transmittance of the present invention, wherein: the window of the integrating sphere is located at the focal point of the short-focus lens.
As a preferred embodiment of the testing device for optical sight transmittance of the present invention, wherein: the grating monochromator is a light splitting element which is fixed on a precise rotating shaft, the rotating shaft is controlled by the computer, an iris diaphragm is arranged at the outlet end of the grating monochromator, the size of an emergent light spot is adjusted by the iris diaphragm, and the size of the emergent light spot is smaller than the size of a window of the integrating sphere.
As a preferred embodiment of the testing device for optical sight transmittance of the present invention, wherein: the light source, the focusing mirror, the baffle with holes, the collimating mirror, the diaphragm, the optical sight to be measured, the short-focus lens and the integrating sphere are arranged on the same horizontal line.
As a preferred embodiment of the testing device for optical sight transmittance of the present invention, wherein: the integrating sphere is a hollow sphere with a highly reflective inner surface.
As a preferred embodiment of the testing device for optical sight transmittance of the present invention, wherein: the integrating sphere and the grating monochromator are directly connected in an alignment mode or connected through an optical fiber.
Compared with the prior art: the device can obtain the transmittance curve of the optical sighting telescope at visible light wavelength at one time, avoids multiple wavelength scanning, has scanning precision which is changed by different resolutions of monochromators used, can simultaneously obtain visible light and partial near infrared light with the wavelength of 400nm-800nm in a measuring range, and completely meets the test requirements of military.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and 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 these drawings without inventive labor. Wherein:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic block diagram of the apparatus of the present invention.
In the figure: 100 operation platform, 200 dark box, 210 slide rail, 220 adjusting bracket, 300 light source, 310 focusing mirror, 320 baffle with holes, 330 collimating mirror, 340 diaphragm, 350 optical aiming device to be measured, 360 short-focus lens, 370 integrating sphere, 400 grating monochromator, 500 computer.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The utility model provides a testing arrangement of optics sight transmissivity for satisfy the test demand on the military, and easy to operate, be difficult for receiving the interference of ambient light simultaneously, the test result is more accurate, please refer to figure 1, it includes: operation platform 100, camera bellows 200, light source 300, grating monochromator 400 and computer 500
Referring to fig. 1 again, the front side wall of the operation platform 100 is used for fixedly mounting the dark box 200, the grating monochromator 400 and the computer 500, and the operation platform 100 is made of aluminum alloy;
referring to fig. 1 again, the camera bellows 200 has a slide rail 210 and an adjusting bracket 220, the camera bellows 200 is installed on the top of the front sidewall of the operation platform 100, specifically, the top of the camera bellows 200 is connected with an upper cover through a hinge, the left and right sides of the upper cover are fixedly installed with the camera bellows 200 through damping telescopic rods, the rear sidewall of the inner cavity of the camera bellows 200 is provided with four first thread grooves (not marked in the figure), the rear sidewall of the slide rail 210 is provided with four second thread grooves (not marked in the figure) with the same aperture corresponding to the first thread grooves, the slide rail 210 is installed on the rear sidewall of the inner cavity of the camera bellows 200 through the four first thread grooves, the four second thread grooves and fastening bolts, and the camera bellows 200 is made of stainless steel;
referring to fig. 1 again, the light source 300 includes a focusing mirror 310, a baffle 320 with a hole, a collimating mirror 330, a diaphragm 340, an optical sight 350 to be measured, a short-focus lens 360 and an integrating sphere 370, the light source 300 is installed on the inner wall of the dark box 200, specifically, the front side wall of the slide rail 210 is slidably connected with eight adjusting brackets 220, the top of each adjusting bracket 220 is fixedly installed with the light source 300, the focusing mirror 310, the baffle 320 with a hole, the collimating mirror 330, the diaphragm 340, the optical sight 350 to be measured, the short-focus lens 360 and the integrating sphere 370 from left to right, the optical axes of the light source 300, the focusing mirror 310, the baffle 320 with a hole, the collimating mirror 330, the diaphragm 340, the optical sight 350 to be measured, the short-focus lens 360 and the integrating sphere 370 are on the same horizontal line, the window of the integrating sphere 370 is located at the focal point of the short-focus lens 360;
referring to fig. 1 again, the grating monochromator 400 is installed below the right side of the front side wall of the operation platform 100, specifically, the grating monochromator 400 is screwed below the right side of the front side wall of the operation platform 100 through a bolt, the integrating sphere 370 and the grating monochromator 400 are directly aligned and connected, the grating monochromator 400 is used for fixedly connecting the computer 500, the grating monochromator 400 is a light splitting element, the light splitting element is fixed on a precise rotating shaft, the rotating shaft is controlled by the computer 500, the exit end of the grating monochromator 400 is provided with an iris, the size of an emergent light spot is adjusted by the iris, and the size of the emergent light spot is smaller than the size of a window of the integrating sphere 370;
referring to fig. 1 again, the computer 500 is installed in the middle of the front sidewall of the operation platform 100, specifically, the computer 500 is placed on the front sidewall of the operation platform 100, and the grating monochromator 400 and the computer 500 are electrically connected through a wire.
In the specific using process, when the utility model is needed, firstly, the power supply of the light source 300 is turned on to preheat the light source 300 for thirty minutes, and the power supplies of other devices are turned on, the light emitted by the light source 300 passes through the collimating mirror 330 and becomes parallel light beams, the radius of the light beams is adjusted through the diaphragm, the light emitted by the collimating mirror 330 passes through the optical sight 350 to be measured again, the emitted light reaches the integrating sphere 370 and finally reaches the grating monochromator 400, the obtained signal is processed by the computer 500 and the result is displayed by the computer 500, on the light path in the darkroom, the optical sight 350 to be measured is not put in, the grating monochromator 400 is controlled on the computer 500 to carry out wavelength scanning, the blank contrast measured data is obtained and then put in the optical sight 350 to be measured, the measured value is obtained, in order to reduce the measuring error, the measurement is repeated for many times, the average value is obtained, and finally the computer 500 software calculates the drawing to obtain the measurement result which is displayed by the computer 500.
Referring to fig. 2 again, the testing method of the testing apparatus includes the following steps:
a. fixing the optical target to be measured on the adjusting bracket 220;
b. adjusting the height of the light source 300, so that the parallel light emitted by the light source 300 through the collimating mirror 330 approaches to the entrance port of the optical sight 350 to be measured, and since the light intensity of the light emitted by the light source 300 is known, it is recorded as P1;
c. the adjusting bracket 220 of the rear side wall of the optical sight 350 to be measured is adjusted to enable the center of the parallel light rays passing through the collimator tube to be coaxial with the center of the incident port of the optical sight 350 to be measured;
d. adjusting the position of integrating sphere 370 so that the window of integrating sphere 370 is at the focal plane of short focus lens 360;
e. measuring the emergent light intensity of the optical sight 350 to be measured, and recording as P2;
f. the transmittance of the optical sight 350 to be measured is P2/P1.
The first thread groove and the second thread groove are not limited to the specific number described in the embodiment, and those skilled in the art may increase or decrease the number as required on the premise that the device can perform the testing function.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. A device for testing optical sight transmission, comprising: an operation platform (100), a dark box (200), a light source (300), a grating monochromator (400) and a computer (500), the top of the front side wall of the operating platform (100) is fixedly provided with the camera bellows (200), a slide rail (210) is fixedly arranged on the rear side wall of the inner cavity of the camera bellows (200), the front side wall of the slide rail (210) is connected with eight adjusting brackets (220) in a sliding manner, the top of each adjusting bracket (220) is fixedly provided with the light source (300), the focusing mirror (310), the baffle with holes (320), the collimating mirror (330), the diaphragm (340), the optical sighting telescope to be tested (350), the short-focus lens (360) and the integrating sphere (370) from left to right in sequence, the grating monochromator (400) is fixedly arranged below the right side of the front side wall of the operating platform (100), the computer (500) is fixedly arranged in the middle of the front side wall of the operating platform (100), the grating monochromator (400) and the computer (500) are electrically connected through a lead.
2. The optical sight transmittance test device according to claim 1, wherein the top of the dark box (200) is connected with an upper cover through a hinge, and the left and right sides of the upper cover are fixedly installed with the dark box (200) through damping telescopic rods.
3. The optical sight transmittance test device of claim 1, wherein the window of the integrating sphere (370) is located at the focal point through the short-focus lens (360).
4. The apparatus for testing the transmission of an optical sight of claim 1, wherein the grating monochromator (400) is a beam splitter element mounted on a precision spindle controlled by the computer (500), and wherein an iris is provided at the exit end of the grating monochromator (400) to adjust the size of the emergent beam spot, and wherein the emergent beam spot size is smaller than the window size of the integrating sphere (370).
5. The apparatus for testing optical sight transmission of claim 1, wherein the optical axes of the light source (300), the focusing mirror (310), the apertured baffle (320), the collimating mirror (330), the stop (340), the optical sight under test (350), the short-focus lens (360), and the integrating sphere (370) are on the same horizontal line.
6. The optical sight transmission test apparatus of claim 1, wherein the integrating sphere (370) is a hollow sphere having a highly reflective inner surface.
7. The optical sight transmittance test device of claim 1, wherein the integrating sphere (370) and the grating monochromator (400) are connected directly in alignment or by an optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827699.7U CN210108680U (en) | 2019-06-04 | 2019-06-04 | Testing device for transmittance of optical sight |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827699.7U CN210108680U (en) | 2019-06-04 | 2019-06-04 | Testing device for transmittance of optical sight |
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| CN210108680U true CN210108680U (en) | 2020-02-21 |
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| CN201920827699.7U Active CN210108680U (en) | 2019-06-04 | 2019-06-04 | Testing device for transmittance of optical sight |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964453A (en) * | 2021-02-03 | 2021-06-15 | 江苏海洋大学 | Production of photoelectric aiming tool is with accurate heart detection device |
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2019
- 2019-06-04 CN CN201920827699.7U patent/CN210108680U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964453A (en) * | 2021-02-03 | 2021-06-15 | 江苏海洋大学 | Production of photoelectric aiming tool is with accurate heart detection device |
| CN112964453B (en) * | 2021-02-03 | 2021-10-15 | 江苏海洋大学 | Production of photoelectric aiming tool is with accurate heart detection device |
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