CN211505894U

CN211505894U - Handheld binocular laser range finding telescope

Info

Publication number: CN211505894U
Application number: CN201922346969.5U
Authority: CN
Inventors: 肖明亮
Original assignee: CHONGQING AITE OPTICAL AND ELECTRONICS CO Ltd
Current assignee: CHONGQING AITE OPTICAL AND ELECTRONICS CO Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-15
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to an optical measurement technical field, concretely relates to handheld binocular laser rangefinder telescope adopts the special prism structure under the handheld binocular laser rangefinder telescope used Abbe prism mode. The binocular optical axis parallelism of the telescope is realized by adjusting the focusing lens and the prism group, and the coincidence of the laser target and the optical difference target is realized by adjusting the coincidence of the laser element and the target line in the liquid crystal display, so that the requirement of laser ranging is realized. On the basis of ensuring the optical performance and the structural size, the function of eliminating part of uncertain factors influencing the assembly and calibration of the handheld binocular laser telescope is realized, and the size and the weight of a product are reduced.

Description

Handheld binocular laser range finding telescope

Technical Field

The utility model relates to an optical measurement technical field, concretely relates to handheld binocular laser rangefinder telescope.

Background

In the prior art, the handheld double-barrel laser ranging equipment automatically carries out a series of calculation by intelligently processing and analyzing transmitted and received laser optical signal data through related technologies such as an integrated optical system, a circuit and software, and displays and informs a calculation result to a user through an internal display screen so as to realize accurate measurement of the distance of a remote observation target. The rationality optimization of the optical system structure is crucial to ensure the functional stability of the product.

The eccentric optical axis structure of the optical prism structure of the existing handheld binocular laser range telescope has the defects of high precision requirement on structural parts of a product and a plurality of factors influencing the structural stability of the system, and each more unstable factor of the structure can cause great influence on the output and the quality of the product. The adoption of the same non-eccentric Abbe optical prism system has the defect of longer structure, so that the integral volume and the quality of the product are increased, and the use experience of a user is influenced.

The eccentric optical axis structure has the defects that the processing difficulty of the optical eccentricity and the structural eccentricity is high, the parallelism of each structural axis is difficult to guarantee, and the objective optical axis parallelism requirement of the binocular laser ranging telescope during laser ranging and the eyepiece optical axis parallelism requirement during observation and use are difficult to guarantee simultaneously.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a handheld binocular laser range finding telescope, which has more unstable factors in the function realization process. The structure change of the optical prism reduces the influence on uncertain factors of laser ranging, and achieves the purposes of simplifying processing difficulty, assembling and adjusting difficulty and reducing the size and weight of a product.

In order to realize the above object, the technical scheme of the utility model is that: a handheld binocular laser ranging telescope comprises two telescope lens barrels and is characterized in that the telescope lens barrels are provided with optical components, and the optical components comprise an objective lens, a focusing lens, a prism group, a liquid crystal display and an eyepiece optical lens group which are sequentially assembled; and the prism group is provided with a laser element.

Further, the prism assembly comprises: the laser device comprises an isosceles prism, a roof pentaprism, a triangular prism and a right-angle prism, wherein an incident surface of the isosceles prism is arranged on a light incident path, an incident surface of the roof pentaprism is glued on a reflecting surface of the isosceles prism, an incident surface of the triangular prism is glued on a reflecting surface of the roof pentaprism, a reflecting surface of the triangular prism is glued with an incident surface of the right-angle prism, and the laser element is arranged on a refracting surface of the triangular prism; incident light enters the isosceles prism, is refracted by the roof pentaprism, the triangular prism and the right-angle prism in sequence and then is parallelly emitted out, and emergent light is adjusted through the laser beam of the laser element, so that the target line of the emergent light is superposed with the target line of the incident light.

Further, the liquid crystal display is arranged opposite to the objective lens, and an imaging surface of the liquid crystal display is coincided with a focal plane.

Furthermore, the eyepiece optical lens group comprises a first lens, a second lens, a third lens and a fourth lens which are sequentially arranged, the first lens, the second lens, the third lens and the fourth lens are coaxially arranged, and the first lens, the second lens, the third lens and the fourth lens are combined to form a negative-positive lens group.

Further, the first lens is a plano-concave negative lens, the second lens is a double-convex positive lens, the third lens is a double-convex positive lens, and the fourth lens is a single-convex positive lens.

Has the advantages that:

the utility model provides a pair of handheld binocular laser rangefinder telescope to current handheld binocular laser rangefinder telescope, has more unstable factor to current handheld binocular laser telescope at the function realization in-process. The structure change of the optical prism reduces the influence on uncertain factors of laser ranging, and achieves the purposes of simplifying processing difficulty, assembling and adjusting difficulty and reducing the size and weight of a product. The processing difficulty of the structural part is simplified, uncertain factors influencing function realization in the assembly production process are reduced, the production difficulty of the product is reduced, the product yield is improved, the quality is stabilized, and the benefit is improved.

Drawings

Fig. 1 is a schematic perspective view of a handheld binocular laser range finder telescope of the present invention;

fig. 2 is a schematic diagram of an optical component of the handheld binocular laser ranging telescope of the present invention;

fig. 3 is a schematic view of a prism set of the handheld binocular laser range finder telescope of the present invention;

FIG. 4 is the light path schematic diagram of the binocular laser distance measuring telescope of the present invention

The labels in the figure are: 1-telescope body, 2-optical component, 11-lens barrel, 21-objective lens, 22-focusing lens, 23-prism group, 24-laser element, 25-liquid crystal display, 26-eyepiece optical lens group, 231-isosceles prism, 232-roof pentaprism, 233-triangular prism, 234-right-angle prism, 261-first lens, 262-second lens, 263-third lens, 264-fourth lens, 231-1-isosceles prism incident plane, 231-2-isosceles prism reflecting plane, 232-1-roof pentaprism incident plane, 232-2-roof pentaprism reflecting plane, 233-1-triangular prism incident plane, 233-2-triangular prism reflecting plane, 234-1-right-angle prism incident plane, 233-3-triangular prism refracting surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in the figures, the utility model discloses a handheld binocular laser range finding telescope, including two telescope tubes 1, its characterized in that, optics component 2 is installed to telescope tube 1, optics component 2 includes objective lens 21, focusing lens 22, prism group 23, LCD 25 and eyepiece optical lens group 26 that assemble in proper order; the prism assembly 23 is provided with a laser element 24. In the scheme, in the actual operation process, the focusing lens 22 is firstly adjusted to find a proper focal length, and then the prism group is adjusted, so that the optical axes of the two lens barrels 11 of the telescope are parallel by the reflection of the incident light of the objective lens through the prism group and the combined reflection of the isosceles prism 231, the roof pentaprism 232, the triangular prism 233 and the right-angle prism 234. Then, incident light rays are emitted to the liquid crystal display 25, and the laser element 24 arranged above the triangular prism refraction surface 233-3 is adjusted at the moment, so that the light rays emitted by the laser element 24 are perpendicular to the triangular prism refraction surface 233-3, and further the laser element 24 is overlapped with a target line in the liquid crystal display 25, namely the laser target is overlapped with an objective lens observation target, and the functional requirement of laser ranging is met. Then, the light rays pass through the liquid crystal display 25 and enter the eyepiece optical lens assembly 26, and the eyepiece optical lens assembly 26 is formed by combining a plurality of groups of lenses, so that the field of view and the visual angle magnification are large. According to the refraction of the prism group, the incident light is refracted, the light path is on the same straight line at the incident surface 231-1 of the isosceles prism and the reflecting surface of the right-angle prism 234, the space in the telescope body 1 can be saved by the light path design, the structural size is changed on the basis of ensuring the optical performance, the size and the weight of the telescope body 1 are reduced, the processing difficulty of structural parts is simplified, and the error in the assembly production process is reduced.

In this embodiment, the prism assembly 23 includes: the laser device comprises an isosceles prism 231, a roof pentaprism 232, a triangular prism 233 and a right-angle prism 234, wherein an incident surface 231-1 of the isosceles prism is arranged on a light incident path, an incident surface 232-1 of the roof pentaprism is glued on a reflecting surface 231-2 of the isosceles prism, an incident surface 233-1 of the triangular prism is glued on a reflecting surface 232-2 of the roof pentaprism, a reflecting surface 233-2 of the triangular prism is glued with an incident surface 234-1 of the right-angle prism, and the laser element 24 is arranged on a refracting surface 233-3 of the triangular prism; the incident light enters the isosceles prism 231, is refracted by the roof pentaprism 232, the triangular prism 233 and the right-angle prism 234 in sequence and then is emitted in parallel, and the laser beam of the laser element 24 is used for adjusting the emergent light, so that the target line of the emergent light is superposed with the target line of the incident light.

In this embodiment, the liquid crystal display 25 is disposed over against the objective lens 21, and an image plane of the liquid crystal display 25 coincides with a focal plane.

In this embodiment, the eyepiece optical lens group 26 includes a first lens 261, a second lens 262, a third lens 263, and a fourth lens 264, which are sequentially disposed, and the first lens 261, the second lens 262, the third lens 263, and the fourth lens 264 are coaxially disposed, and the first lens 261, the second lens 262, the third lens 263, and the fourth lens 264 are combined to form a negative-positive lens group.

In this embodiment, the first lens 261 is a plano-concave negative lens, the second lens 262 is a double convex positive lens, the third lens 263 is a double convex positive lens, and the fourth lens 264 is a single convex positive lens.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A handheld binocular laser ranging telescope comprises two telescope lens barrels (1) and is characterized in that an optical component (2) is mounted on each telescope lens barrel (1), and each optical component (2) comprises an objective lens (21), a focusing lens (22), a prism group (23), a liquid crystal display (25) and an eyepiece optical lens group (26) which are sequentially assembled; the prism group (23) is provided with a laser element (24).

2. The binocular hand-held laser ranging telescope according to claim 1, characterised in that the prism group (23) comprises: the laser device comprises an isosceles prism (231), a roof pentaprism (232), a triangular prism (233) and a right-angle prism (234), wherein an incident surface (231-1) of the isosceles prism is arranged on a light incident path, an incident surface (232-1) of the roof pentaprism is glued on a reflecting surface (231-2) of the isosceles prism, an incident surface (233-1) of the triangular prism is glued on a reflecting surface (232-2) of the roof pentaprism, a reflecting surface (233-2) of the triangular prism is glued with an incident surface (234-1) of the right-angle prism, and a laser element (24) is arranged on a refracting surface (233-3) of the triangular prism; incident light enters the isosceles prism (231), is refracted by the roof pentaprism (232), the triangular prism (233) and the right-angle prism (234) in sequence and then is emitted in parallel, and emergent light is adjusted through a laser beam of the laser element (24) so that a target line of the emergent light is superposed with a target line of the incident light.

3. The binocular hand-held laser range telescope of claim 1, wherein the liquid crystal display (25) is arranged opposite the objective lens (21), and wherein the image plane of the liquid crystal display (25) coincides with the focal plane.

4. The handheld binocular laser range telescope according to claim 1, wherein the eyepiece optical lens group (26) comprises a first lens (261), a second lens (262), a third lens (263) and a fourth lens (264) which are arranged in sequence, the first lens (261), the second lens (262), the third lens (263) and the fourth lens (264) are coaxially arranged, and the first lens (261), the second lens (262), the third lens (263) and the fourth lens (264) are combined to form a negative-positive lens group.

5. The binocular hand-held laser range telescope of claim 4, wherein the first lens (261) is a plano-concave negative lens, the second lens (262) is a biconvex positive lens, the third lens (263) is a biconvex positive lens, and the fourth lens (264) is a single convex positive lens.