CN114879211A - A device for embedded laser collimation coaxial transceiver ranging and display - Google Patents

Abstract

The invention relates to the technical field of laser ranging, in particular to an embedded laser collimation coaxial transceiving ranging and displaying device, which comprises a shell, wherein a prism group, a laser collimation lens group, a laser tube, an APD receiving tube, a light filter, an electronic reticle, a projection prism, fixed reticle glass, a first laser reflection film, a second laser reflection film, a visible light splitting film and a visible laser emitter are arranged in the shell and are fixed in the shell, the laser emission energy utilization rate is high through the matching of the laser emission tube and the laser collimation lens group, the divergence angle can be greatly reduced through the collimation of the laser collimation lens group, more light can irradiate the second reflection film and be reflected through adopting a smaller first reflection film, so that the device can receive more laser without losing the laser emission energy, the projection prism and a laser light path are combined into a whole, what you see is what you get.

Description

A device for embedded laser collimation coaxial transceiver ranging and display

technical field

The invention relates to the technical field of laser ranging, in particular to an embedded laser collimating coaxial transceiver ranging and display device.

Background technique

As we all know, at present, the laser emission and reception of LiDAR are designed separately, and the optical paths are parallel to each other. The overall volume of the optical path system is large and unsightly. The utilization rate of laser energy is not high, and it is not easy to integrate.

In the current prior art, the display of electronic reticle data is separated from the optical path, which is not conducive to observation.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides an embedded laser collimation coaxial transceiver ranging and display device, which has the advantages of beautiful appearance, small size, and by integrating the electronic reticle display into the optical path, so as to facilitate the Observed.

(2) Technical solutions

In order to achieve the above purpose, the present invention provides the following technical solutions: an embedded laser collimation coaxial transceiver ranging and display device, comprising a casing, the interior of the casing is provided with a prism group and a laser collimation lens group , laser tube, APD receiver tube, filter, electronic reticle, projection prism, fixed reticle glass, first laser reflection film, second laser reflection film, visible light beam splitter film, visible laser emitter, and all fixed In the housing, the prism group includes two prisms, which are arranged in opposite directions and have a spacing. The first laser reflection film is arranged in the middle of the right side of the left prism, and the second laser reflection film is arranged On the left side of the right prism, the fixed reticle glass is arranged at intervals on the right side of the prism group, the projection prisms are arranged at intervals on the right side of the fixed reticle glass, and the visible light beam splitting film is arranged on the projection prism , the visible laser transmitter is arranged at the top of the projection prism, the electronic reticle is arranged at the bottom end of the projection prism, the filters are arranged at intervals at the bottom end of the right prism, and the APD receiving tubes are arranged at intervals It is arranged at the bottom end of the filter, the laser collimating lens group is arranged at intervals at the bottom end of the left prism, the laser tube is arranged at the bottom end of the laser collimating lens group at intervals, and the inner bottom of the casing is arranged at intervals. The right part of the end is provided with a circuit system, and is respectively electrically connected with the visible laser transmitter, the electronic reticle, the APD receiving tube and the laser tube.

Further, the housing respectively fixes and clamps each component, and the interior of the housing is provided with several cavities.

Further, the first laser reflection film and the second laser reflection film are both laser total reflection films.

Further, the visible light beam splitting film is an OLED light-emitting wavelength beam splitting film.

Further, the electronic reticle is an OLED electronic reticle.

(3) Beneficial effects

Compared with the prior art, the present invention provides an embedded laser collimation coaxial transceiver ranging and display device, which has the following beneficial effects:

1. Through the cooperation of the laser emission tube and the laser collimation lens group, the utilization rate of the laser emission energy is high, and the laser is collimated by the laser collimation lens group, which can greatly reduce the divergence angle.

2. By using a smaller first reflective film, more light can be irradiated on the second reflective film and be reflected, so that the device can receive more laser light without losing laser emission energy.

3. What you see is what you get by combining the projection prism with the laser light path.

4. By setting the visible laser transmitter, the device is convenient to quickly locate the target at night.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the light ray schematic diagram when the present invention emits laser;

3 is a schematic diagram of a light beam when receiving laser light according to the present invention;

FIG. 4 is a schematic diagram of light when the OLED of the present invention is displayed;

FIG. 5 is a schematic diagram of light when the visible laser is emitted according to the present invention.

In the figure: 1. Housing; 2. Prism group; 3. Laser collimating lens group; 4. Laser tube; 5. APD receiving tube; 6. Optical filter; 7. Electronic reticle; 8. Projection prism; 9. Fixed reticle glass; 10. First laser reflecting film; 11. Second laser reflecting film; 12. Visible light beam splitting film; 13. Visible laser transmitter; 14. Circuit system; 15. Cavity.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIGS. 1-5 , an embedded laser collimation coaxial transceiver ranging and display device of the present invention includes a casing 1 , and a prism group 2 and a laser collimation lens group 3 are arranged inside the casing 1 . , laser tube 4, APD receiving tube 5, filter 6, electronic reticle 7, projection prism 8, fixed reticle glass 9, first laser reflection film 10, second laser reflection film 11, visible light beam splitting film 12 , visible laser transmitter 13, and are fixed in the housing 1, the laser tube 4 can emit laser light when power is supplied, the APD receiver tube 5 can sense and receive laser light when power is supplied, the filter 6 is used to filter light, and the electronic division The board 7 can display the picture when the power is supplied, the visible laser transmitter 13 can emit visible laser when the power is supplied, the prism group 2 includes two prisms, and is arranged in the opposite direction, and is arranged with a distance, and the first laser reflection film 10 is arranged on the The middle of the right side of the left prism, the second laser reflection film 11 is arranged on the left side of the right prism, the fixed reticle glass 9 is arranged on the right side of the prism group 2 at intervals, and the fixed reticle glass is marked with a cross. The collimator can still have a certain indication effect when the device is practically used without affecting the light, and when there is no electricity, the projection prism 8 is arranged at intervals on the right side of the fixed reticle glass 9, and visible light The beam splitting film 12 is arranged on the projection prism 8, the visible laser emitter 13 is arranged at the top of the projection prism 8, the electronic reticle 7 is arranged at the bottom end of the projection prism 8, and the optical filter 6 is arranged at intervals at the bottom of the right prism. The APD receiver tube 5 is arranged at the bottom end of the filter 6 at intervals, the laser collimating lens group 3 is arranged at the bottom end of the left prism at intervals, and the laser tube 4 is arranged at the bottom end of the laser collimating lens group 3 at intervals. The collimating lens group 3 is matched with two different lens directions, so as to achieve the effect of collimating the light of the laser. A circuit system 14 is arranged on the right part of the bottom end of the inside of the casing 1, and is respectively connected with the visible laser emitter 13. , the electronic reticle 7, the APD receiving tube 5 and the laser tube 4 are electrically connected, the circuit system 14 adopts the circuit system 14 in the prior art, and the present invention innovates the structure of each component without improving the original circuit For the system 14, the circuit system 14 in the original technical field can be used, so it is not repeated here. The housing 1 respectively fixes and clamps each component, and the interior of the housing 1 is provided with several cavities 15. The cavities 15 The weight of the device can be reduced. The first laser reflection film 10 and the second laser reflection film 11 are both laser total reflection films, which can have a better effect of reflecting laser light. The visible light beam splitting film 12 is an OLED light-emitting band beam splitting film, a visible light beam splitting film. 12 is an OLED light-emitting band light-splitting film, which has a better effect of reflecting the OLED light-emitting band light without affecting the observation of visible light. The electronic reticle 7 is an OLED electronic reticle.

To sum up, the device that can be embedded laser collimation coaxial transceiver ranging and display, when emitting laser, after aiming at the target, the laser tube 4 will emit a beam of laser band laser, which is collimated by the collimating lens group , and then after being reflected by the first laser total reflection film of the prism group 2, it is directed to the target through the central optical path of the objective lens to complete the laser emission work. The objective lens is a mirror set on the left side of the device. The scattered light is changed to parallel light, and the objective lens is the prior art in the field, so this embodiment does not repeat it.

When the laser is received, when the emitted laser is reflected from the target and then returns along the original path, the laser-band laser beam passes through the objective lens and then irradiates onto the prism group 2. Since the area of the first laser reflecting film 10 is small, most of the The laser beam will be irradiated on the second laser reflection film 11 and reflected, so as to be irradiated to the filter 6, and then irradiated to the APD receiving tube 5. After receiving the laser light, the APD receiving tube 5 will send an electrical signal to the circuit system 14. , to complete the laser receiving task.

When OLED display is required, the OLED electronic reticle 7 is the OLED display screen. The emitted light passes through the projection prism 8 and is reflected by the visible light beam splitting film 12, and passes through the fixed reticle glass 9 and the prism group 2, and then passes through the objective lens. Irradiation can realize observation, and the first laser reflection film 10 and the second laser reflection film 11 on the prism group 2 will not reflect the light beam.

When visible laser indication is required, the visible light emitted by the visible laser emitter 13 is reflected by the visible light beam splitting film 12 of the projection prism 8, passes through the fixed reticle glass 9 and the prism group 2 to the left, and then irradiates the target.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. An embedded laser collimation coaxial transceiver ranging and display device, comprising a housing (1), characterized in that: a prism group (2), a laser Straight lens group (3), laser tube (4), APD receiver tube (5), optical filter (6), electronic reticle (7), projection prism (8), fixed reticle glass (9), The first laser reflection film (10), the second laser reflection film (11), the visible light beam splitting film (12), and the visible laser emitter (13) are all fixed in the casing (1), and the prism group (2) ) includes two prisms, which are arranged in opposite directions and have a spacing, the first laser reflection film (10) is arranged in the middle of the right side of the prism on the left, and the second laser reflection film (11) is arranged in On the left side of the right prism, the fixed reticle glass (9) is arranged on the right side of the prism group (2) at intervals, and the projection prism (8) is arranged on the right side of the fixed reticle glass (9) at intervals , the visible light splitting film (12) is arranged on the projection prism (8), the visible laser emitter (13) is arranged on the top of the projection prism (8), and the electronic reticle (7) is arranged on the projection prism (8), the filter (6) is arranged at intervals at the bottom end of the right prism, the APD receiving tube (5) is arranged at intervals at the bottom end of the filter (6), the laser The collimating lens group (3) is arranged at intervals at the bottom end of the left prism, the laser tube (4) is arranged at intervals at the bottom end of the laser collimating lens group (3), and the inner bottom of the casing (1) The right part of the end is provided with a circuit system (14), which is respectively electrically connected with the visible laser transmitter (13), the electronic reticle (7), the APD receiving tube (5) and the laser tube (4). 2 . An embedded laser collimation coaxial transceiver ranging and display device according to claim 1 , characterized in that: the casing ( 1 ) respectively fixes and clamps each component, and the casing ( 1 ) The interior of the body (1) is provided with several cavities (15). 3. An embedded laser collimation coaxial transceiver ranging and display device according to claim 1, characterized in that: the first laser reflection film (10) and the second laser reflection film (11) Both are laser total reflection films. 4 . The device for embedded laser collimation, coaxial transceiver ranging and display according to claim 1 , wherein the visible light splitting film ( 12 ) is an OLED light-emitting band splitting film. 5 . 5 . The device for embedded laser collimation coaxial transceiver ranging and display according to claim 1 , wherein the electronic reticle ( 7 ) is an OLED electronic reticle. 6 .

Images