CN216052464U - Optical axis calibrating device based on artificial star point - Google Patents
Optical axis calibrating device based on artificial star point Download PDFInfo
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- CN216052464U CN216052464U CN202122737473.8U CN202122737473U CN216052464U CN 216052464 U CN216052464 U CN 216052464U CN 202122737473 U CN202122737473 U CN 202122737473U CN 216052464 U CN216052464 U CN 216052464U
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- laser diode
- optical axis
- shell
- star point
- artificial star
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Abstract
The utility model relates to an optical axis calibration device based on artificial star points, which comprises a shell, wherein a laser diode is arranged in the shell, the laser diode is arranged on a main board, a light-transmitting opening is formed in one side of the shell, the light-transmitting opening is arranged corresponding to the laser diode, the main board is used for controlling the laser diode, the main board is connected with a power line, and a shaping hose is arranged between the tail end of the power line and the head end of the connecting main board and used for adjusting the position of the shell. The laser diode is used as a light source, so that artificial star points with small luminous points and high brightness can be provided, and the light source can be easily seen in the daytime; the power is low, and the electricity and the energy are saved.
Description
Technical Field
The utility model relates to the field of optical axis calibration devices of astronomical telescopes, in particular to an optical axis calibration device based on artificial star points.
Background
The common reflection and refraction astronomical telescope needs to be adjusted frequently due to the unstable optical axis, and the aperture of the telescope is large, so that it is not practical for a user to prepare a collimator with a large aperture. The natural star points are influenced by the vision tranquilizer, the effect is not good and the influence of weather is large. An artificial star point is required as a point light source to help adjust the optical axis.
The existing artificial star point is obtained by using a bulb or an LED as a luminous body and placing a metal foil with a pinhole in front of the luminous body. The point light source cannot be used as a point light source when the telescope is relatively close to the point light source because the metal foil punched hole cannot be small, and the brightness is low, so that a target cannot be easily found in a relatively bright environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an optical axis calibration device based on artificial star points, which solves the technical problems of the artificial star points in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an optical axis calibrating device based on artifical star, includes the casing, is equipped with laser diode in the casing, and laser diode sets up on the mainboard, and one side of casing is equipped with printing opacity mouth, printing opacity mouth with laser diode corresponds the setting, and the mainboard is used for control laser diode, mainboard connection have the power cord, are equipped with the design hose between the terminal of power cord and the head end of being connected the mainboard, are used for adjusting the position of casing.
Furthermore, the front side of the shell is provided with the light transmitting opening, the light transmitting opening is provided with window glass, and at least one side of the front side surface and the rear side surface of the window glass is plated with antireflection films.
Further, the casing includes the housing and its releasable connection's apron, and the printing opacity mouth sets up the front side at the housing.
Furthermore, a potentiometer is arranged on one side of the shell except the front side of the shell and connected with the main board for adjusting the brightness of the laser diode.
Furthermore, antireflection films are arranged on the front side and the rear side of the window glass, and the front side and the rear side of the window glass are respectively provided with a broadband antireflection film.
Furthermore, the tail end of the power line is provided with a USB plug.
Further, the laser diode is a single mode laser diode.
Further, the power cord extends from the bottom of the housing.
The utility model has the beneficial effects that:
the optical axis calibration device based on the artificial star point adopts the laser diode as the light source, can provide the artificial star point with small luminous point and high brightness, is an ideal artificial star point, and can be seen easily in the daytime; the power of the diode is small, the diode is harmless to human eyes, the power is saved, the energy is saved, and the cost is low.
Drawings
FIG. 1 is a schematic diagram of an optical axis calibration device based on artificial star points according to the present invention;
fig. 2 is an exploded schematic view of an optical axis calibration device based on artificial star points according to the present invention.
Names corresponding to the marks in the figure:
1. the device comprises a shell, 11, a housing, 12, a cover plate, 13, a light-transmitting opening, 2, a shaping hose, 3, a USB plug, 4, a potentiometer, 5, a main board, 6, window glass, 7, a screw, 8 and a laser diode.
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 that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The embodiment of the utility model comprises the following steps:
as shown in fig. 1-2, an optical axis calibration device based on artificial star points includes a housing 1, a laser diode 8 is disposed in the housing 1, and the laser diode 8 is disposed on a main board 5. One side of the shell is provided with a light-transmitting opening 13, and the light-transmitting opening 13 is arranged corresponding to the laser diode.
The housing 1 includes a cover 11 and a cover plate 12 detachably connected to the cover 11, and a light transmission opening 13 is provided on the front side of the cover 11 and is arranged to penetrate forward and backward. The cover plate 12 is fixed to the rear side of the housing 11 by screws 7. The round window glass 6 is arranged at the light transmission opening 13 and used for transmitting light, the glass is float glass, and the front side surface and the rear side surface of the glass are both plated with antireflection films and are broadband antireflection films. The light transmission opening is designed as a hole with the diameter of 10 mm.
The main board 5 is used for controlling the laser diode, and the main board is also a PCB board, and the principle about the power supply and control adjustment of the laser diode belongs to the prior art, and is not the innovation point of the present application. The main board is provided with a current limiting circuit, and the current is limited by a resistor. And an RC filter is also arranged to protect the laser diode from being burnt out by surge current.
The upper side of casing is equipped with potentiometre 4, and potentiometre 4 is connected with mainboard 5 for adjust laser diode's luminance, mainly realize through adjusting current size, and this part principle also does not describe in detail. The potentiometer can also be arranged on the other side except the front side, so that the potentiometer is convenient to operate.
The laser diode is a single-mode laser diode, can select blue light, and has the wavelength of 440nm, 450nm, 470nm and 488 nm; green light with wavelength of 515nm or 520nm can also be used; or red light with wavelength of 635nm, 638nm, 650nm, 660nm, 690nm, or even near infrared light.
The light emitting area of the laser diode is 1 micron thick and less than 10 microns wide. Both the transverse and longitudinal dimensions are much smaller than the resolution of the telescope and can be considered as ideal point sources. The light emitting intensity of the laser diode is very high, and a light source can be easily seen in the daytime; the power of the laser diode used in this embodiment is less than 1mW, which is safe for human eyes. The laser diode is used as a light source, so that the artificial star point with small luminous point and high brightness is obtained.
The mainboard 5 is connected with the power cord, and the power cord is stretched out by the bottom of casing, and the end of power cord is equipped with USB plug 3. Utilize USB plug 3 to insert the socket or charge on the treasured, for mainboard 5 power supply. After the power line is connected, the laser diode can be directly lighted.
A shaping hose 2 is arranged between the tail end of the power line and the head end of the connecting main board and used for adjusting the position of the shell. In this embodiment, the shaping hose 2 adopts the metal shaping hose, and the shaping hose also can adopt the structure of the lamp pole similar to the desk lamp, and the desk lamp hose is the outside cladding plastic at the steel wire. The shaping hose can be bent at any angle, so that the position of the shell can be conveniently adjusted, and the angle of the artificial star point can be adjusted.
The optical axis calibration device based on the artificial star point adopts the laser diode as the light source, can provide the artificial star point which has small luminous point, high brightness and no harm to human eyes, saves electricity and energy and has low cost.
Claims (8)
1. The utility model provides an optical axis calibrating device based on artifical star which characterized in that: including the casing, be equipped with laser diode in the casing, laser diode sets up on the mainboard, and one side of casing is equipped with light-permeable opening, light-permeable opening with laser diode corresponds the setting, and the mainboard is used for control laser diode, mainboard connection have the power cord, are equipped with the design hose between the end of power cord and the head end of being connected the mainboard, are used for adjusting the position of casing.
2. The artificial star point based optical axis calibration device according to claim 1, wherein: the front side of the shell is provided with the light transmitting opening, the light transmitting opening is provided with window glass, and at least one side face of the front side face and the back side face of the window glass is plated with an antireflection film.
3. The artificial star point-based optical axis calibration device according to claim 1 or 2, wherein: the shell comprises a cover shell and a cover plate detachably connected with the cover shell, and the light transmission opening is formed in the front side of the cover shell.
4. The artificial star point-based optical axis calibration device according to claim 1 or 2, wherein: and the other side of the shell except the front side is provided with a potentiometer, and the potentiometer is connected with the main board and used for adjusting the brightness of the laser diode.
5. The artificial star point based optical axis calibration device according to claim 2, wherein: antireflection films are arranged on the front side and the rear side of the window glass, and the front side and the rear side of the window glass are respectively provided with a broadband antireflection film.
6. The artificial star point based optical axis calibration device according to claim 1, wherein: and a USB plug is arranged at the tail end of the power line.
7. The artificial star point based optical axis calibration device according to claim 1, wherein: the laser diode is a single mode laser diode.
8. The artificial star point based optical axis calibration device according to claim 1, wherein: the power cord extends out of the bottom of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122737473.8U CN216052464U (en) | 2021-11-08 | 2021-11-08 | Optical axis calibrating device based on artificial star point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122737473.8U CN216052464U (en) | 2021-11-08 | 2021-11-08 | Optical axis calibrating device based on artificial star point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216052464U true CN216052464U (en) | 2022-03-15 |
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ID=80615188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122737473.8U Active CN216052464U (en) | 2021-11-08 | 2021-11-08 | Optical axis calibrating device based on artificial star point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216052464U (en) |
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2021
- 2021-11-08 CN CN202122737473.8U patent/CN216052464U/en active Active
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