CN209946388U

CN209946388U - Optical configuration integrating laser receiving and visible light observing and aiming

Info

Publication number: CN209946388U
Application number: CN201920530736.8U
Authority: CN
Inventors: 董涛; 宋艳; 秦红旗
Original assignee: Luoyang Dingyang Photoelectric Technology Co Ltd
Current assignee: Luoyang Dingyang Photoelectric Technology Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-01-14
Anticipated expiration: 2029-04-18

Abstract

The utility model relates to a laser and visible light optical design field, specific optical configuration that fuses is observed with visible light to laser reception that says so. The device comprises an objective lens, a Prolo prism, a beam splitting triple prism, a photoelectric detector and a second ocular lens; the prism comprises a first triangular prism, a second triangular prism and a third triangular prism, wherein the second triangular prism and the third triangular prism are arranged on the same side surface of the first triangular prism in a staggered mode; a converging lens, an optical filter and a first ocular lens are sequentially arranged between the photoelectric detector and the beam splitting prism, and a cross reticle is arranged on the third prism and between the light path of the visible light reflected by the film layer and the second ocular lens. The utility model discloses can improve laser receiving system optical axis and visible light optical axis parallelism, simplify the light path structure simultaneously.

Description

Optical configuration integrating laser receiving and visible light observing and aiming

Technical Field

The utility model relates to a laser and visible light optical design field, specific optical configuration that fuses is observed with visible light to laser reception that says so.

Background

With the wider application of laser ranging technology, the measurement device is required to be more portable and more integrated. Especially, the laser range finder usually needs to be used with the observing and aiming system, the optical axis parallelism is poor, and the optical path structure is complex, which is not beneficial to the miniaturization of the device, thereby being inconvenient to carry and use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a laser reception and visible light sight fuse's optical configuration to improve laser receiving system optical axis and visible light optical axis parallelism, simplify the light path structure simultaneously.

In order to solve the technical problem, the utility model discloses a technical scheme be: an optical configuration integrating laser receiving and visible light observing and aiming comprises an objective lens, a Prolo prism, a beam splitting triple prism, a photoelectric detector for receiving laser split by the beam splitting triple prism and a second ocular lens for observing and aiming visible light split by the beam splitting triple prism; the prism comprises a first triangular prism, a second triangular prism and a third triangular prism, wherein the second triangular prism and the third triangular prism are arranged on the same side surface of the first triangular prism in a staggered mode; a converging lens, an optical filter and a first ocular lens are sequentially arranged between the photoelectric detector and the beam splitting prism, and a cross reticle is arranged on the third prism and between the light path of the visible light reflected by the film layer and the second ocular lens.

Preferably, the second triangular prism and the third triangular prism are arranged on the first triangular prism in a gluing mode, and the cross reticle is arranged on the third triangular prism in a gluing mode.

Preferably, the cross section of the first triangular prism is an isosceles triangle, and the cross sections of the second triangular prism, the third triangular prism and the light splitting triangular prism are all isosceles right triangles; the second triangular prism and the third triangular prism are respectively arranged on the side face corresponding to the bevel edge of the first triangular prism through the side face corresponding to the right-angle edge, and the light splitting triangular prism is arranged on the side face corresponding to the bevel edge of the third triangular prism through the side face corresponding to the bevel edge; the cross reticle is arranged on the side surface corresponding to the right-angle side of the third triangular prism.

Preferably, the photosensitive surface of the photodetector is located at the focal point of the converging mirror.

Preferably, the cross reticle is located at the focal plane position of the objective lens, and the center of the cross reticle coincides with the focal point of the objective lens.

Advantageous effects

The utility model has the characteristics of the laser receiving system and the visible light observing and aiming system share the light path, thereby greatly simplifying the optical structure and being beneficial to the miniaturization, portability and integration of the equipment; meanwhile, the optical axis parallelism of the observing and aiming system and the laser receiving system is higher, and the adjustment difficulty of the system is simplified. The long light path is refracted in the prism, so that the length of the optical cylinder is greatly shortened.

Drawings

Fig. 1 is a schematic structural view of the present invention;

the labels in the figure are: 1. the optical lens comprises a Prolo prism, 101, a first triple prism, 102, a third triple prism, 103, a second triple prism, 2, an objective lens, 3, a beam splitting triple prism, 4, a film layer, 5, a photoelectric detector, 6, a converging lens, 7, an optical filter, 8, a first ocular lens, 9, a cross reticle, 10 and a second ocular lens.

Detailed Description

The structure of the present invention is schematically shown in fig. 1, wherein the dotted line is the optical axis of the line connecting the centers of curvature of the optical elements. The utility model discloses an optical configuration that laser reception and visible light sight fuse, including objective 2, proprelle 1, beam split prism 3, be used for receiving the photoelectric detector 5 of the laser of 3 minutes of beam split prism and be used for observing the second eyepiece 10 of the visible light of 3 minutes of beam split prism.

The plano prism 1 includes an inverted first triangular prism 101 and second and third

triangular prisms

103 and 102 alternately disposed on the top surface of the first triangular prism 101. The cross section of the first triangular prism 101 is an isosceles triangle, and the cross sections of the second triangular prism 103, the third triangular prism 102 and the beam splitting triangular prism 3 are all isosceles right triangles. The second triangular prism 103 and the third triangular prism 102 are respectively arranged on the top surface corresponding to the hypotenuse of the first triangular prism 101 in a gluing manner with the side surfaces corresponding to the right-angled sides. The spectroscopic triangular prism 3 is arranged on the side face corresponding to the hypotenuse of the third triangular prism 102 in a manner that the side face corresponding to the hypotenuse is cemented. A film layer 4 for transmitting laser light and reflecting visible light is coated on the spectroscopic triple prism 3 on the side surface thereof to which the third triple prism 102 is bonded.

The objective lens 2 is arranged at one side of the Protic prism 1 and corresponds to the right-angled side surface of the second triangular prism 103; the second ocular lens 10 is arranged at the other side of the Protic prism 1 and corresponds to the right-angled side surface of the third prism; the photodetector 5 is disposed on the top of the plano prism 1 and corresponds to the top surface of the spectroscopic triple prism 3. A converging lens 6, an optical filter 7 and a first ocular lens 8 are sequentially arranged between the photoelectric detector 5 and the beam splitting prism 3; a cross reticle for collimation is cemented on the third triangular prism 102 at a position between the optical path of the visible light reflected by the film layer 4 and the second eyepiece 10. The photosensitive surface of the photodetector 5 is located at the focal point of the converging mirror 6. The cross reticle 9 is located at the focal plane position of the objective lens 2, and the center of the cross reticle 9 coincides with the focal point of the objective lens 2.

The utility model discloses in, the 1 emergent optical axis of puro prism is parallel with incident optical axis, realizes the full inverted image to can turn over very long light path in the prism. The film layer 4 on the beam splitter prism divides the laser echo to the position of the first ocular lens 8, and divides the visible light to the position of the cross reticle 9. Through the structure, can make the utility model provides a function is aimed to laser reception and visible light, its optical circuit comprises two parts:

the first type is a laser receiving light path which is composed of an objective lens 2, a Prolo prism 1, a beam splitter prism, a first ocular lens 8, an optical filter 7, a converging lens 6 and a photoelectric detector 5. The objective lens 2 and the first eyepiece 8 form a keplerian telescope system for converging the laser beam. The laser echo sequentially penetrates through the objective lens 2, the Prolo prism 1, the film layer 4, the beam splitter prism, the first ocular lens 8, the optical filter 7 and the converging lens 6 to be converged on the photoelectric detector 5.

And the other is a visible light observing and aiming light path consisting of an objective lens 2, a Prolo prism 1, a film layer 4, a cross reticle 9 and a second ocular lens 10. The objective lens 2 and the second eyepiece 10 form a Keplerian telescope system for visible light observation, and the plano prism 1 makes the system form an upright image. Meanwhile, the visible light path is folded into a long light path in the Prolo prism 1, so that the mechanical cylinder length is shortened to the maximum extent.

Claims

1. An optical configuration incorporating laser acceptance and visible viewing, characterized by: the device comprises an objective lens (2), a Protochor prism (1), a beam splitting triple prism (3), a photoelectric detector (5) for receiving laser split by the beam splitting triple prism (3) and a second ocular lens (10) for observing and aiming visible light split by the beam splitting triple prism (3); the Prussian prism (1) comprises a first triple prism (101), a second triple prism (103) and a third triple prism (102) which are arranged on the same side face of the first triple prism (101) in a staggered mode, the arrangement position of an objective lens (2) corresponds to that of the second triple prism (103), a light splitting triple prism (3) is arranged on the side face of the third triple prism (102) in an attached mode, and a film layer (4) for laser to penetrate and reflect visible light is coated on the side face, located on the light splitting triple prism (3) and attached to the third triple prism (102), of the light splitting triple prism (3); a converging lens (6), an optical filter (7) and a first ocular lens (8) are sequentially arranged between the photoelectric detector (5) and the light splitting triple prism (3), and a cross reticle (9) is arranged on the third triple prism (102) and between the optical path of the visible light reflected by the film layer (4) and the second ocular lens (10).

2. The optical configuration of claim 1, wherein said optical configuration comprises a laser receiver and a visible light viewer, said optical configuration comprising: the second triangular prism (103) and the third triangular prism (102) are arranged on the first triangular prism (101) in a gluing mode, and the cross reticle (9) is arranged on the third triangular prism (102) in a gluing mode.

3. The optical configuration of claim 1, wherein said optical configuration comprises a laser receiver and a visible light viewer, said optical configuration comprising: the cross section of the first triangular prism (101) is an isosceles triangle, and the cross sections of the second triangular prism (103), the third triangular prism (102) and the light splitting triangular prism (3) are isosceles right triangles; the second triangular prism (103) and the third triangular prism (102) are respectively arranged on the side face corresponding to the bevel edge of the first triangular prism (101) through the side face corresponding to the right-angle edge, and the light splitting triangular prism (3) is arranged on the side face corresponding to the bevel edge of the third triangular prism (102) through the side face corresponding to the bevel edge; the cross reticle (9) is arranged on the side surface corresponding to the right-angle side of the third triangular prism (102).

4. The optical configuration of claim 1, wherein said optical configuration comprises a laser receiver and a visible light viewer, said optical configuration comprising: the photosensitive surface of the photoelectric detector (5) is positioned at the focal point of the converging mirror (6).

5. The optical configuration of claim 1, wherein said optical configuration comprises a laser receiver and a visible light viewer, said optical configuration comprising: the cross reticle (9) is positioned at the focal plane position of the objective lens (2), and the center of the cross reticle (9) is superposed with the focal point of the objective lens (2).