CN218995714U - Composite prism and laser ranging telescope thereof - Google Patents

Abstract

The utility model discloses a composite prism and a laser ranging telescope thereof. The composite prism comprises a first prism and a second prism, wherein the bottom surface of the first prism is glued with the first obtuse angle surface of the second prism, and the glued surface is plated with a beam splitting film. The first inclined surface of the first prism is used as a reflecting surface to form a right angle with the reflecting surface of the second prism, and the second inclined surface of the first prism opposite to the right angle is parallel to the second obtuse angle surface of the second prism. The composite prism is combined with a Porro prism to form a prism erecting system, and the telescope system is formed by integrating a telescopic observation and aiming system, a projection display system, a laser emission system and a laser receiving system. And the function, performance and structural form of the laser ranging telescope can be diversified.

Description

Composite prism and laser ranging telescope thereof

Technical Field

The utility model relates to the field of laser ranging, in particular to a composite prism with two reflecting surfaces forming a right angle and a binocular laser ranging telescope optical system thereof.

Background

Compared with the binocular telescope optical system, the binocular laser ranging telescope optical system is mainly provided with a laser transmitting system and a laser receiving system. In order to reduce the volume and weight of the laser ranging telescope, the laser transmitting and receiving systems and the binocular telescope observation system are integrated through a beam splitting prism, so that the two objective lenses are respectively shared. Some prism systems of the existing binocular laser ranging telescope adopt beam splitting prisms with light rays with larger incidence angles (incidence angles are larger than 30 DEG) on the beam splitting film surface, and the difficulty of plating a high-performance beam splitting film is increased due to polarization influence. Some of the prisms include roof prisms; although the roof prism has compact structure, the transverse dislocation of the incident optical axis and the emergent optical axis is smaller, which is beneficial to reducing the overall transverse dimension, but increases the limit on the diameter of the objective lens; moreover, the roof prism has a large technological difficulty, and the limited folding length of the optical axis in the prism can lead to a large overall longitudinal length, so that the roof prism has a certain limitation in application.

Disclosure of Invention

In view of the above background, the present utility model provides a compound prism with two reflecting surfaces forming a right angle and a binocular laser ranging telescope system using the compound prism.

In order to achieve the above purpose, the two reflecting surfaces provided by the utility model form a right-angle composite prism, which comprises a first prism and a second prism; the bottom surface of the first prism is glued with the first obtuse angle surface of the second prism, and the glued surface is plated with a beam splitting film; the first inclined plane of the first prism is used as a reflecting surface to form a right angle with the reflecting surface of the second prism, and the second inclined plane of the first prism opposite to the right angle is parallel to the second obtuse angle surface of the second prism, and can be an incident surface of visible light and laser or an emergent surface of visible light and laser.

More specifically, the beam splitting film is a beam splitting film that reflects light of a third wavelength and transmits visible light of a first wavelength and visible light of a second wavelength. Or a beam splitting film that reflects the third wavelength light and the second wavelength visible light and transmits the first wavelength visible light.

The incidence angle of light rays on the beam splitting film surface of the composite prism is about 22.5 degrees, and a roof prism is not adopted, so that the manufacturability is good; the transverse dislocation of the incident optical axis and the emergent optical axis is larger, which is beneficial to shortening the longitudinal length of the whole machine and adopting an objective lens with larger diameter. Therefore, the limitation of the prior prism system is filled, and the functions, the performances and the structural forms of the laser ranging telescope are more diversified.

The composite prism can be used for constructing various laser ranging telescopes, and the following five technical schemes are adopted:

according to the first technical scheme, the binocular laser ranging telescope comprises an objective lens, a Porro prism, a compound prism, a dividing mirror, an ocular lens, a laser and a laser receiver. Wherein the light incident surface and the light emergent surface of the Porro prism are the same plane, one part is a light incident area, and the other part is a light emergent area; a light incidence area of a light incidence/emergence surface of the Porro prism is arranged to face the objective lens, the light emergence area is adjacent to a second inclined surface of the first prism in opposite directions, and main sections of the Porro prism and the composite prism are perpendicular to each other. The bonding surface of the first prism and the second prism is plated with a visible light beam splitting film which reflects laser light. The dividing mirror is arranged at the focal plane of the objective lens; the eyepiece is arranged on an optical path perpendicular to the second obtuse angle surface of the second prism, and the laser receiver are arranged on an optical path perpendicular to the reflecting surface of the first prism.

According to the second technical scheme, the binocular laser ranging telescope comprises an objective lens, a Porro prism, a compound prism, a dividing mirror, an ocular lens, a laser and a laser receiver. A light incidence area of a light incidence/emergence surface of the Porro prism is arranged to face the objective lens, the light emergence area is adjacent to a second obtuse angle surface of the second prism in a facing way, and main sections of the Porro prism and the compound prism are perpendicular to each other. The bonding surface of the first prism and the second prism is plated with a reflective laser and a transmissive visible light beam splitting film. The dividing mirror is arranged at the focal plane of the objective lens; the ocular is arranged on an optical path perpendicular to the second inclined plane of the first prism, and the laser receiver are arranged on an optical path perpendicular to the reflecting surface of the second prism.

The binocular laser ranging telescope comprises an objective lens, a composite prism, a Porro prism, a dividing mirror, an ocular, a laser receiver, a right-angle prism, a microchip laser, a negative lens and a positive lens. The second obtuse angle surface of the second prism is arranged to face the objective lens, the light incidence area of the Porro prism is adjacent to the second inclined surface of the first prism in opposite directions, and the main sections of the Porro prism and the composite prism are perpendicular to each other. The bonding surface of the first prism and the second prism is plated with a visible light beam splitting film which reflects laser light. The dividing mirror is arranged at the focal plane of the objective lens, and the ocular lens is arranged on an optical path perpendicular to the light emergent plane of the Porro prism. The right-angle prism is arranged on an optical path perpendicular to the reflecting surface of the second prism, a microchip laser and a negative lens are arranged on the reflecting optical path of one right-angle prism, and a positive lens and a laser receiver are arranged on the reflecting optical path of the other right-angle prism.

According to the fourth technical scheme, the binocular laser ranging telescope comprises an objective lens, a Porro prism, a compound prism, an ocular lens, a laser receiver, a display, a projection lens and a right-angle prism. A light incidence area of a light incidence/emergence surface of the Porro prism is arranged to face the objective lens, the light emergence area is adjacent to a second inclined surface of the first prism in opposite directions, and main sections of the Porro prism and the composite prism are perpendicular to each other. The bonding surface of the first prism and the second prism is plated with a beam splitting film which reflects laser and visible light with a first wavelength and transmits the rest of visible light. The laser and the laser receiver are arranged on a light path perpendicular to the first inclined plane of the first prism, the ocular is arranged on a light path perpendicular to the second obtuse angle surface of the second prism, the right-angle prism is arranged on a light path perpendicular to the reflecting surface of the second prism, and the projection lens and the display are arranged on the reflecting light path of the right-angle prism.

According to the fifth technical scheme, the binocular laser ranging telescope comprises an objective lens, a Porro prism, a compound prism, an ocular lens, a laser receiver, a display, a projection lens and a right-angle prism. A light incidence area of a light incidence/emergence surface of the Porro prism is arranged to face the objective lens, the light emergence area is adjacent to a second obtuse angle surface of the second prism in a facing way, and main sections of the Porro prism and the compound prism are perpendicular to each other. The bonding surface of the first prism and the second prism is plated with a beam splitting film which reflects laser and visible light with a first wavelength and transmits the rest of visible light. The laser and the laser receiver are arranged on an optical path perpendicular to the reflecting surface of the second prism. The eyepiece is arranged on an optical path perpendicular to the second inclined surface of the first prism. The right angle prism is arranged on the light path perpendicular to the first inclined plane of the first prism, and the projection lens and the display are arranged on the reflection light path of the right angle prism.

Drawings

FIG. 1 is a schematic view of a first composite prism and a beam transmission direction thereof according to the present utility model;

FIG. 2 is a schematic view of a second composite prism and a beam transmission direction thereof according to the present utility model;

FIG. 3 is a schematic view of a third composite prism and a beam transmission direction thereof according to the present utility model;

FIG. 4 is a schematic view of a fourth composite prism and a beam transmission direction thereof according to the present utility model;

FIG. 5 is a schematic view of a first embodiment of an optical system of a binocular laser ranging telescope;

FIG. 6 is a schematic diagram of a second embodiment optical system of a binocular laser ranging telescope;

FIG. 7 is a schematic diagram of a third embodiment of an optical system of a binocular laser ranging telescope;

FIG. 8 is a schematic diagram of a fourth embodiment of an optical system of a binocular laser ranging telescope;

fig. 9 is a schematic diagram of an optical system of a fifth embodiment of a binocular laser ranging telescope.

Detailed Description

The technical solution of the present utility model will be described in more detail and fully below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments of the present utility model and other embodiments related to the composite prism of the present utility model are also within the scope of the present utility model.

In the description of the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not intended to indicate relative importance. For simplicity of description, the following notations are made: r1 represents the first wavelength visible light, r2 represents the second wavelength visible light, abbreviated as visible light r1 and visible light r2, and r3 represents the third wavelength light, abbreviated as laser light r 3. A1 represents a first prism, A2 represents a second prism, and the prisms are abbreviated as a prism A1 and a prism A2, respectively.

As shown in fig. 1, the two reflecting surfaces form a right angle compound prism, denoted compound prism F1. The prism comprises a prism A1 and a prism A2, wherein the prism A1 is an isosceles triangle prism, and the prism A2 is a half pentaprism. The bottom surface 103 of the prism A1 is glued to the first obtuse angle surface 201 of the prism A2, and the glued surface is coated with a beam splitting film for reflecting the laser light r3, the perspective visible light r1 and the visible light r 2. The first inclined surface 102 of the prism A1 forms a right angle with the reflecting surface 202 of the prism A2; the second inclined surface 101 of the prism A1 is parallel to the second obtuse angle surface 203 of the prism A2. Assuming that the second inclined surface 101 of the prism A1 is the incident surface of the visible light r1, the visible light r2, and the laser light r3, the second obtuse angle surface 203 of the prism A2 is the emission surface of the visible light r1 and the visible light r2, and the first inclined surface 102 of the prism A1 is the emission surface of the laser light r 3. The visible light r1, the visible light r2 and the laser r3 enter the composite prism from the second inclined plane 101 of the prism A1, after being reflected by the first inclined plane 102 of the composite prism, the visible light r1 and the visible light r2 pass through the bonding surface and then are reflected by the reflecting surface 202 of the prism A2, are emitted from the second obtuse angle surface 203 of the prism A2, and the laser r3 is reflected by the bonding surface beam splitting film and then is reflected by the second inclined plane 101 and is emitted from the first inclined plane 102 of the prism A1. When the first inclined surface 102 of the prism A1 is used as the incident surface of the laser light r3, the laser light r3 is reflected by the second inclined surface 101 of the prism A1, the adhesive surface, and the first inclined surface 102 in this order, and is emitted from the second inclined surface 101.

As shown in fig. 2, the two reflecting surfaces form a right angle compound prism, denoted as compound prism F2, comprising prism A1 and prism A2. The prism A1 is a triangular prism, and the prism A2 is a half-pentaprism, and the angle value of the larger acute angle is twice that of the smaller acute angle. The bottom surface 103 of the prism A1 is glued to the first obtuse angle surface 201 of the prism A2, and the glued surface is coated with a beam splitting film that reflects the laser light r3 and transmits the visible light r1 and the visible light r 2. The first inclined surface 102 of the prism A1 forms a right angle with the reflecting surface 202 of the prism A2; the second inclined surface 101 of the prism A1 is parallel to the second obtuse angle surface 203 of the prism A2. Assuming that the second obtuse angle surface 203 of the prism A2 is the incident surface of the visible light r1, r2 and the laser light r3, the second inclined surface 101 of the prism A1 is the emission surface of the visible light r1, r2, and the reflecting surface 202 of the prism A2 is the emission surface of the laser light r 3. When the reflecting surface 202 of the prism A2 is used as the incident surface of the laser light r3, the second obtuse angle surface 203 of the prism A2 is the outgoing surface of the laser light r 3. The visible light r1, the visible light r2 and the laser r3 enter the composite prism from the second obtuse angle surface 203 of the prism A2, after being reflected by the reflecting surface 202 in the composite prism, the visible light r1 and the visible light r2 pass through the bonding surface, are reflected by the first inclined surface 102 and are emitted from the second inclined surface 101; the laser beam r3 is reflected by the adhesive surface beam splitting film and is emitted from the reflecting surface 202 of the prism A2. When the reflecting surface 202 of the prism A2 is used as the incident surface of the laser beam r3, the laser beam r3 is reflected by the beam splitting film on the bonding surface, and is reflected by the reflecting surface 202, and is emitted from the second obtuse angle surface 203 of the prism A2.

As shown in fig. 3, the two reflecting surfaces form a right angle compound prism, denoted as compound prism F3, comprising prism A1 and prism A2. The prism A1 is an isosceles triangle prism with a vertex angle of 45 degrees, and the prism A2 is a half pentaprism. The bottom surface 103 of the prism A1 is glued to the first obtuse angle surface 201 of the prism A2, and the glued surface is coated with a beam splitting film that reflects the laser light r3 and the visible light r2 and transmits the visible light r 1. When the second inclined surface 101 of the prism A1 is used as the incident surface of the visible light r1 and the laser light r3 and the reflecting surface 202 of the prism A2 is used as the incident surface of the visible light r2, the second obtuse angle surface 203 of the prism A2 becomes the emission surface shared by the visible light r1 and r2, and the first inclined surface 102 of the prism A1 is the emission surface of the laser light r 3. When the first inclined surface 102 of the prism A1 is used as the incident surface of the laser light r3, the second inclined surface 101 of the prism A1 becomes the emission surface of the laser light r 3. The visible light r1 and the laser r3 enter the composite prism from the second inclined plane 101 of the prism A1, are reflected by the surface 102 of the prism A1, wherein the visible light r1 passes through the bonding surface and is reflected by the reflecting surface 202 of the prism A2, and are emitted from the second obtuse angle surface 203 of the prism A2; the laser r3 is reflected by the beam splitting film of the bonding surface, reflected by the second inclined surface 101 and emitted from the first inclined surface 102 of the prism A1; the visible light r2 enters the composite prism from the reflecting surface 202 of the prism A2, is reflected by the beam splitting film of the bonding surface, is overlapped with the optical path of the visible light r1, is reflected by the reflecting surface 202, and is emitted from the second obtuse angle surface 203 of the prism A2. When the laser light r3 is made to enter the complex prism from the first inclined surface 102 of the prism A1, the laser light r3 is reflected by the second inclined surface 101, the beam splitting film surface, and the first inclined surface 102 of the prism A1 in this order, and then is emitted from the second inclined surface 101.

As shown in fig. 4, the two reflecting surfaces form a right angle compound prism, denoted as compound prism F4, including prism A1 and prism A2. The bonding surface between the prism A1 and the prism A2 is plated with a beam splitting film which reflects the laser r3 and the visible light r2 and transmits the visible light r 1. Taking the second obtuse angle surface 203 of the prism A2 as the incident surface of the visible light r1 and the laser light r3 and taking the first inclined surface 102 of the prism A1 as the incident surface of the visible light r2, the second inclined surface 101 of the prism A1 becomes the emission surface shared by the visible light r1 and r 2; the reflecting surface 202 of the prism A2 serves as an emission surface of the laser light r 3. The visible light r1 and the laser r3 enter the composite prism from the second obtuse angle surface 203 of the prism A2, are reflected by the reflecting surface 202 of the prism A2, wherein the visible light r1 passes through the bonding surface, and then is reflected by the first inclined surface 102 of the prism A1 and then is emitted from the second inclined surface 101 thereof; and the laser r3 is reflected by the beam splitting film on the bonding surface and then emitted from the reflecting surface 202. The visible light r2 enters the composite prism from the first inclined plane 102 of the prism A1, is reflected by the second inclined plane 101 of the prism A1 and the beam splitting film of the bonding surface, is combined with the visible light r1, and is reflected by the first inclined plane 102 of the prism A1 and then is emitted from the second inclined plane 101 of the prism A1. When the reflecting surface 202 of the prism A2 is used as the incident surface of the laser light r3, the second obtuse angle surface 203 of the prism A2 becomes the outgoing surface of the laser light r 3.

As shown in fig. 5, the binocular laser ranging telescope constructed using the composite prism F1 includes an objective lens 1, a Porro prism 2, the composite prism F1, a dividing mirror 4, an eyepiece 5, a laser 6, and a laser receiver 7. Wherein, the light incidence area of the Porro prism 2 faces the objective lens 1, the light emergence area of the Porro prism 2 is adjacent to the second inclined plane 101 of the compound prism F1 in opposite directions, and the Porro prism 2 and the compound prism F1 form a prism positive image system; the eyepiece 5 is arranged on an optical path perpendicular to the second obtuse angle surface 203 of the prism A2 and is coaxial with the objective lens 1, and its front focal plane coincides with the focal plane of the objective lens 1. The objective lens 1, the prism erecting system and the eyepiece lens 5 constitute a telescope observation system. The laser 6 and the laser receiver 7 are arranged on an optical path perpendicular to the first inclined surface 102 of the prism A1. In the left lens barrel of the binocular laser ranging telescope, an objective lens 1, a Porro prism 2, a prism A1 and a laser receiver 7 constitute a laser receiving system; after the laser receiving system and the telescope observing system are integrated through the compound prism F1, the laser receiving system and the telescope observing system share the objective lens 1. In the right barrel of the binocular laser ranging telescope, the laser 6, the prism A1, the Porro prism 2, and the objective lens 1 constitute a laser emission system. After the laser emission system and the telescope observation system are integrated through the compound prism F1, the laser emission system and the telescope observation system share the same objective lens 1. The telescope observation system is an optical system having functions of telescopic observation, aiming, and measurement data display, by disposing a reticle 4 made of a transmissive LCD or OLED on a common focal plane of the objective lens 1 and the eyepiece lens 5.

When the right lens barrel is used for aiming at a measured target, laser is emitted to the target, and after the laser is reflected by the target, the laser entering the left lens barrel is focused on the laser receiver 7 by the laser receiving system; the measured target distance is calculated from the transmission time required from the transmission to the reception of the laser signal, and displayed on the reticle 4, and the measurement result is observed through the eyepiece 5.

As shown in fig. 6, the binocular laser ranging telescope constructed using the composite prism F2 includes an objective lens 1, a Porro prism 2, a composite prism F2, a dividing mirror 4, an eyepiece 5, a laser 6, and a laser receiver 7. Wherein, the light incidence area of the Porro prism 2 faces the objective lens 1, the second obtuse angle surface 203 of the compound prism F2 is adjacent to the light emergence area of the Porro prism 2, and the Porro prism 2 and the compound prism F2 form a prism positive image system; the eyepiece 5 is arranged on an optical path perpendicular to the second inclined plane 101 of the prism A1 and has the same optical axis as the objective lens 1, and the front focal plane of the eyepiece 5 is coincident with the focal plane of the objective lens 1; the objective lens 1, the prism erecting system and the eyepiece lens 5 constitute a telescope observation system. The laser 6 and the laser receiver 7 are mounted on an optical path perpendicular to the reflecting surface 202 of the prism A2. In the left lens barrel of the binocular laser ranging telescope, an objective lens 1, a Porro prism 2, a prism A2 and a laser receiver 7 constitute a laser receiving system; after the laser receiving system and the telescope observing system are integrated through the compound prism F2, the laser receiving system and the telescope observing system share the same objective lens 1. In the right lens barrel of the binocular laser ranging telescope, a laser 6, a prism A2, a Porro prism 2 and an objective lens 1 form a laser emission system; after the laser emission system and the telescope observation system are integrated through the compound prism F2, the laser emission system and the telescope observation system share the same objective lens 1. The telescope observation system is an optical system having functions of telescopic observation, aiming, and displaying measurement data, by disposing a reticle 4 made of a transmissive LCD or OLED on a common focal plane of the objective lens 1 and the eyepiece lens 5. The binocular laser ranging telescope is similar to fig. 5 in that the target distance is calculated by emitting laser to the target and measuring the laser reciprocating transmission time, and the calculated target distance is displayed on the dividing mirror 4, and the measurement result is observed through the eyepiece 5.

As shown in fig. 7, the binocular laser ranging telescope constructed by using the composite prism F2 and the microchip laser includes an objective lens 1, the composite prism F2, a Porro prism 2, a dividing mirror 4, an eyepiece 5, the microchip laser 6, a negative lens 12, a right angle prism 10, a positive lens 11, and a laser receiver 7. In view of the small diameter and dispersion of the laser beam output from the microchip laser 6, the compound prism F2 may be disposed in front of the Porro prism 2, i.e., on the side close to the objective lens 1, so that the laser light transmission does not have to pass through the Porro prism 2, to reduce the laser light transmission loss. The second obtuse angle surface 203 of the compound prism F2 is arranged to face the objective lens 1, the light incidence area of the Porro prism 2 is adjacent to the second inclined surface 101 of the compound prism F2 in opposite directions, and the compound prism F2 and the Porro prism 2 form a prism positive image system; the eyepiece 5 is arranged on an optical path perpendicular to the light emitting surface of the Porro prism 2 and has the same optical axis as the objective lens 1, and the front focal surface of the eyepiece coincides with the focal surface of the objective lens 1. In the left lens barrel of the binocular laser ranging telescope, an objective lens 1, a prism erecting system and an eyepiece 5 form a telescopic observation system; the laser receiver 7 and the positive lens 11 are mounted on an optical path perpendicular to the reflecting surface 202 of the prism A2 by means of a right angle prism 10. The objective lens 1, the prism A2, the right-angle prism 10, the positive lens 11 and the laser receiver 7 form a laser receiving system; the laser receiving system and the telescopic observation system are integrated through a compound prism F2 and then share one objective lens 1. In the right barrel of the binocular laser distance measuring telescope, the microchip laser 6 and the negative lens 12 are mounted on an optical path perpendicular to the reflecting surface 202 of the prism A2 through the right-angle prism 8. The microchip laser 6, the negative lens 12, the right-angle prism 10, the prism A2 and the objective lens 1 form a laser emission system; the dividing mirror 4 is arranged on a common focal plane of the objective lens 1 and the ocular 5, and the objective lens 1, the prism erecting system, the dividing mirror 4 and the ocular 5 form a telescopic observation, aiming and measurement data display system; the system is integrated by a compound prism F2 and shares an objective lens 1 with the laser emission system. The binocular laser ranging telescope is similar to fig. 6 in that the distance between the target and the target is calculated by emitting laser to the target and measuring the laser reciprocating time, and the distance is displayed on the dividing mirror 4, and the measurement result is observed through the eyepiece 5.

As shown in fig. 8, the binocular laser ranging telescope constructed using the composite prism F3 includes an objective lens 1, a Porro prism 2, a composite prism F3, an eyepiece 5, a laser 6, a laser receiver 7, a display 8, a projection lens 9, and a right angle prism 10. Wherein, the light incidence area of the Porro prism 2 faces the objective lens 1, the second inclined plane 101 of the compound prism F3 is adjacent to the light emergence area of the Porro prism 2 in opposite directions, and the Porro prism 2 and the compound prism F3 form a prism positive image system; the eyepiece 5 is arranged on the optical path perpendicular to the second obtuse angle surface 203 of the prism A2, and has the same optical axis as the objective lens 1, and the front focal plane coincides with the focal plane of the objective lens 1. The objective lens 1, the prism erecting system and the eyepiece 5 constitute a telescopic observation system. The laser 6 and the laser receiver 7 are arranged on an optical path perpendicular to the first slope 102 of the prism A1. In the left lens barrel of the binocular laser ranging telescope, a laser receiving system consisting of an objective lens 1, a Porro prism 2, a prism A1 and a laser receiver 7; the laser receiving system and the telescopic observation system are integrated through the compound prism F3 and share one objective lens 1. In the right lens barrel of the binocular laser ranging telescope, a laser 6, a prism A1, a Porro prism 2 and an objective lens 1 form a laser emission system; the display 8 and the projection lens 9 are arranged on the optical path perpendicular to the reflecting surface 202 of the prism A2 through the right angle prism 10, and the projection lens 9 projects the pattern and data displayed by the display 8 with the second wavelength visible light onto the common focal plane of the objective lens 1 and the eyepiece 5, so that the telescopic observation system is an optical system with the functions of telescopic observation, aiming and data display. After the system is integrated with the laser emission system through the compound prism 3, the system and the laser emission system share one objective lens 1. The technical proposal replaces the dividing mirror made of the transmission type LCD or OLED with the projection pattern, which is beneficial to improving the transmittance of the observation system.

As shown in fig. 9, the binocular laser ranging telescope constructed by using the compound prism F4 includes an objective lens 1, a Porro prism 2, the compound prism F4, an eyepiece 5, a laser 6, a laser receiver 7, a display 8, a projection lens 9, and a right angle prism 10. Wherein, the light incidence area of the Porro prism 2 faces the objective lens 1, the second obtuse angle surface 203 of the compound prism F4 is adjacent to the light emergence area of the Porro prism 2, and the Porro prism 2 and the compound prism F4 form a prism positive image system; the eyepiece 5 is arranged on the optical path perpendicular to the second inclined plane 101 of the prism A1 and has the same optical axis as the objective lens 1, and the front focal plane thereof coincides with the focal plane of the objective lens 1. The objective lens 1, the prism erecting system and the eyepiece 5 constitute a telescopic observation system. The laser 6 and the laser receiver 7 are arranged on an optical path perpendicular to the reflecting surface 202 of the prism A2. In the left barrel of the binocular laser ranging telescope, the objective lens 1, the Porro prism 2, the prism A2, and the laser receiver 7 constitute a laser receiving system. The laser receiving system and the telescopic observation system are integrated by a compound prism F4 and share one objective lens 1. In the right barrel of the binocular laser ranging telescope, the laser 6, the prism A2, the Porro prism 2, and the objective lens 1 constitute a laser emission system. The display 8 and the projection lens 9 are arranged on the optical path perpendicular to the first inclined plane 102 of the prism A1 through the right-angle prism 10, and the projection lens 9 projects the pattern and data displayed by the display 8 by the second wavelength visible light onto the common focal plane of the objective lens 1 and the ocular lens 5, so that the telescopic observation system is an optical system with the functions of telescopic observation, aiming and data display. After the system and the laser emission system are integrated through the compound prism F4, the system and the laser emission system share one objective lens 1.

The technical scheme has basically the same characteristics as the technical scheme of the laser ranging telescope shown in fig. 6, except that a projection system is used for projecting the content displayed by a display to the focal plane of an objective lens to replace a dividing mirror.

Claims (12)

1. A compound prism, characterized in that: comprises a first prism (A1) and a second prism (A2); the bottom surface (103) of the first prism (A1) is glued with the first obtuse angle surface (201) of the second prism (A2), and the glued surface is plated with a beam splitting film; the first inclined surface (102) of the first prism (A1) forms a right angle with the reflecting surface (202) of the second prism (A2), and the second inclined surface (101) of the first prism (A1) opposite to the right angle is parallel to the second obtuse angle surface (203) of the second prism (A2).

2. A compound prism as claimed in claim 1, wherein: the beam splitting film is a beam splitting film which reflects the third wavelength light (r 3) and transmits the first wavelength visible light (r 1) and the second wavelength visible light (r 2).

3. A compound prism as claimed in claim 2, wherein: the second inclined plane (101) of the first prism (A1) is used as an incident plane of the first wavelength visible light (r 1), the second wavelength visible light (r 2) and the third wavelength light (r 3), the second obtuse angle surface (203) of the second prism (A2) is an emergent plane of the first wavelength visible light (r 1) and the second wavelength visible light (r 2), and the first inclined plane (102) of the first prism (A1) is an emergent plane of the third wavelength light (r 3); or the first inclined surface (102) of the first prism (A1) is used as an incident surface of the third wavelength light (r 3), and the second inclined surface (101) of the first prism (A1) is used as an emergent surface of the third wavelength light (r 3).

4. A compound prism as claimed in claim 2, wherein: the second obtuse angle surface (203) of the second prism (A2) is used as the incident surface of the second wavelength visible light (r 2) and the third wavelength visible light (r 3) of the first wavelength visible light (r 1), the second inclined surface (101) of the first prism (A1) is the emergent surface of the first wavelength visible light (r 1) and the second wavelength visible light (r 2), and the reflecting surface (202) of the second prism (A2) is the emergent surface of the third wavelength visible light (r 3); or the reflection surface (202) of the second prism (A2) is used as an incidence surface of the third wavelength light (r 3), and the second obtuse angle surface (203) of the second prism (A2) is used as an emission surface of the third wavelength light (r 3).

5. A compound prism as claimed in claim 1, wherein: the beam splitting film is a beam splitting film which reflects the third wavelength light (r 3) and the second wavelength visible light (r 2) and transmits the first wavelength visible light (r 1).

6. A compound prism as defined in claim 5, wherein: the second inclined surface (101) of the first prism (A1) is used as an incident surface of the first wavelength visible light (r 1) and the third wavelength visible light (r 3), the second obtuse angle surface (203) of the second prism (A2) is an emergent surface of the first wavelength visible light (r 1), the first inclined surface (102) of the first prism (A1) is an emergent surface of the third wavelength visible light (r 3), the reflecting surface (202) of the second prism (A2) is used as an incident surface of the second wavelength visible light (r 2), and the second obtuse angle surface (203) of the second prism (A2) is an emergent surface shared by the second wavelength visible light (r 2) and the first wavelength visible light (r 1); or the first inclined surface (102) of the first prism (A1) is used as an incident surface of the third wavelength light (r 3), and the second inclined surface (101) of the first prism (A1) is used as an emergent surface of the laser light r 3.

7. A compound prism as defined in claim 5, wherein: the second obtuse angle surface (203) of the second prism (A2) is used as an incident surface of the first wavelength visible light (r 1) and the third wavelength visible light (r 3), the first inclined surface (102) of the first prism (A1) is used as an incident surface of the second wavelength visible light (r 2), and the second inclined surface (101) of the first prism (A1) is used as an emergent surface shared by the first wavelength visible light (r 1) and the second wavelength visible light (r 2); the reflecting surface (202) of the second prism (A2) is the emitting surface of the third wavelength light (r 3); or the reflection surface (202) of the second prism (A2) is used as an incidence surface of the third wavelength light (r 3), and the second obtuse angle surface (203) of the second prism (A2) is used as an emission surface of the third wavelength light (r 3).

8. A binocular laser ranging telescope employing the compound prism of claim 3, characterized in that: the optical system comprises an objective lens (1), a Porro prism (2), a compound prism (3), a dividing mirror (4), an ocular lens (5), a laser (6) and a laser receiver (7), wherein the light incidence surface and the light emergence surface of the Porro prism (2) are the same plane, one part is a light incidence area, the other part is a light emergence area, the light incidence area is arranged to face the objective lens (1), the light emergence area is adjacent to a second inclined plane (101) of a first prism (A1) in opposite directions, and the main sections of the Porro prism (2) and the compound prism (3) are perpendicular to each other; the dividing mirror (4) is arranged at the focal plane of the objective lens (1), the ocular lens (5) is arranged on the optical path perpendicular to the second obtuse angle surface (203) of the second prism (A2), and the laser (6) and the laser receiver (7) are arranged on the optical path perpendicular to the first inclined plane (102) of the first prism (A1).

9. A binocular laser ranging telescope employing the compound prism of claim 4, characterized in that: including objective (1), porro prism (2), compound prism (3), division mirror (4), eyepiece (5), laser instrument (6) and laser receiver (7), set up Porro prism (2) light incidence area subtends objective (1), make its light emergence area and second obtuse angle face (203) of second prism (A2) adjacent in opposite directions to make Porro prism (2) and compound prism (3) main cross-section mutually perpendicular, division mirror (4) set up in objective (1) focal plane department, eyepiece (5) set up on the light path of perpendicular to first prism (A1) second inclined plane (101), laser instrument (6) and laser receiver (7) are installed on the light path of perpendicular to second prism (A2) reflecting surface (202).

10. A binocular laser ranging telescope employing the compound prism of claim 4, characterized in that: the light incidence area of the Porro prism (2) is opposite to the objective lens (1), the light incidence area of the Porro prism is opposite to the second inclined plane (101) of the first prism (A1) and is adjacent to the second inclined plane (101) of the first prism (A1), the main sections of the Porro prism (2) and the composite prism (3) are mutually perpendicular, and the right-angle prism (10) is arranged on a light path perpendicular to the reflecting surface (202) of the second prism (A2); a microchip laser (6) and a negative lens (12) are arranged on the reflection light path of one right-angle prism (10), and a positive lens (11) and a laser receiver (7) are arranged on the reflection light path of the other right-angle prism (10); the dividing mirror (4) is arranged at the focal plane of the objective lens (1); the eyepiece (5) is arranged on an optical path perpendicular to the light emitting surface of the Porro prism (2).

11. A binocular laser ranging telescope employing the compound prism of claim 6, characterized in that: the device comprises an objective lens (1), a Porro prism (2), a compound prism (3), an eyepiece (5), a laser (6), a laser receiver (7), a display (8), a projection lens (9) and a right angle prism (10); arranging a light incidence area of the Porro prism (2) opposite to the objective lens (1), enabling a light emergence area to be adjacent to a second inclined plane (101) of the first prism (A1) in opposite directions, and enabling main sections of the Porro prism (2) and a main section of the composite prism (3) to be perpendicular to each other; the ocular lens (5) is arranged on the light path perpendicular to the second obtuse angle surface (203) of the second prism (A2); the right-angle prism (10) is arranged on a light path perpendicular to the reflecting surface (202) of the second prism (A2), and the projection lens (9) and the display (8) are arranged on the reflecting light path of the right-angle prism (10); the laser (6) and the laser receiver (7) are arranged on an optical path perpendicular to the first inclined plane (102) of the first prism (A1).

12. A laser ranging telescope using the composite prism of claim 7, wherein: the optical system comprises an objective lens (1), a Porro prism (2), a composite prism (3), an eyepiece (5), a laser (6), a laser receiver (7), a display (8), a projection lens (9) and a right angle prism (10), wherein a light incidence area of the Porro prism (2) is arranged to face the objective lens (1), so that a light emergence area is adjacent to a second obtuse angle surface (203) of a second prism (A2) in a opposite direction, and main sections of the Porro prism (2) and the composite prism (3) are mutually perpendicular; the ocular lens (5) is arranged on the light path perpendicular to the second inclined plane (101) of the first prism (A1); the right-angle prism (10) is arranged on a light path perpendicular to the first inclined plane (102) of the first prism (A1), and the projection lens (9) and the display (8) are arranged on a reflection light path of the right-angle prism (10); the laser (6) and the laser receiver (7) are arranged on an optical path perpendicular to the reflecting surface (202) of the second prism (A2).

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