CN220829595U - Optical ranging module and laser range finder - Google Patents

Abstract

The utility model relates to an optical ranging module and a laser ranging instrument, wherein the optical ranging module comprises a laser emitting assembly, a laser receiving assembly and an optical bracket; the optical brackets are arranged in parallel and are adjacent to each other, and a mounting cylinder and a first mounting frame are arranged on the optical brackets; the mounting cylinder is provided with a through hole along a first direction, and the laser receiving assembly is arranged in the through hole of the mounting cylinder; the laser emission assembly is arranged in the first mounting frame; the axial directions of the laser receiving component and the laser transmitting component are parallel to the first direction. The optical component has the beneficial effects that the optical component is more compact in structural design, and the volume of the optical bracket is reduced to the maximum extent, so that the appearance design of a corresponding product is more flexible.

Description

Optical ranging module and laser range finder

Technical Field

The utility model relates to the technical field of measuring equipment, in particular to an optical ranging module and a laser range finder.

Background

The laser range finder is an instrument for realizing the distance measurement of a target by utilizing the parameters of modulated laser, and has the advantages of light weight, simple operation, high and accurate ranging speed and the error of only one fifth to one hundred times of that of other optical range finders.

The optical ranging module in the existing laser range finder relates to signal transmission, so that the volume ratio of an optical bracket is large, and the product appearance design and the structure minimization are not facilitated.

Therefore, a new optical ranging module needs to be developed to solve the above-mentioned technical problems.

Disclosure of utility model

First, the technical problem to be solved

In view of the above-mentioned drawbacks and shortcomings of the prior art, the present utility model provides an optical ranging module and a laser ranging device, which solve the technical problems of larger occupation space of optical ranging related components in the existing laser ranging device, and influence on appearance design and structure minimization of the device.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

In a first aspect, an embodiment of the present utility model provides an optical ranging module, including a laser emitting assembly, a laser receiving assembly, and an optical bracket; the optical brackets are arranged in parallel and are adjacent to each other, and a mounting cylinder and a first mounting frame are arranged on the optical brackets; the mounting cylinder is provided with a through hole along a first direction, and the laser receiving assembly is arranged in the through hole of the mounting cylinder; the laser emission assembly is arranged in the first mounting frame; the axial directions of the laser receiving component and the laser transmitting component are parallel to the first direction.

Optionally, the optical ranging module, the laser receiving assembly includes an objective lens and an optical filter sequentially arranged in the mounting barrel; the objective lens is arranged at a first port of the mounting cylinder perpendicular to the first direction; the optical filter is opposite to and parallel to the objective lens, and the optical filter is arranged in the middle of the mounting cylinder.

Optionally, the optical ranging module, the laser receiving assembly further includes a filter bracket; the optical filter is embedded in the optical filter bracket; the middle part of the mounting cylinder is concavely arranged to form a clamping area; the filter support is clamped on the side wall of the mounting cylinder along the inward sinking direction of the mounting cylinder.

Optionally, the optical ranging module, the laser receiving assembly further comprises an inner optical button and a laser tube; the inner optical button and the laser tube are connected to the side wall of the mounting cylinder between the second port and the clamping area; the inner optical button is rotationally connected with the laser tube; the inner optical button and the laser tube are kept at a preset distance from the axis of the mounting cylinder; the second port is arranged opposite to the first port.

Optionally, the optical ranging module, the laser receiving assembly further comprises a receiving plate; the receiving plate is parallel to and opposite to the optical filter, and the receiving plate is arranged at the second port.

Optionally, the optical ranging module further comprises an expansion emission component and a glass sheet; the optical bracket is also provided with a second mounting frame; the second mounting frame is connected to one side of the first mounting frame, which faces away from the mounting cylinder; the expansion transmitting assembly is arranged in the second mounting frame; the glass sheet is disposed within the first mounting bracket and the second mounting bracket is adjacent an end of the first port.

Optionally, the optical ranging module further comprises a main board; the optical bracket is arranged on the main board; the mounting cylinder and the first mounting frame are connected to the main board; and a notch is reserved at the position of the main board corresponding to the mounting cylinder.

Optionally, the optical ranging module, the inner optical button and the laser tube are both perpendicular to the main board; one side of the mounting cylinder, which is away from the main board, is concavely arranged to form the clamping area.

In a second aspect, an embodiment of the present utility model provides an optical ranging module optionally including the optical ranging module of the first aspect.

(III) beneficial effects

The beneficial effects of the utility model are as follows: according to the optical ranging module and the laser ranging instrument, the mounting cylinders and the first mounting frames are arranged in the optical bracket in parallel and adjacent to each other and are respectively used for placing the laser receiving assembly and the laser transmitting assembly, so that the laser receiving assembly and the laser transmitting assembly are arranged in an adjacent mode, the space between the two assemblies is saved, compared with the prior art, the optical assembly is more compact in structural design, the volume of the optical bracket is reduced to the greatest extent, and the appearance design of a corresponding product is more flexible.

In addition, a second mounting frame is arranged on one side of the laser emission component adjacently and used for placing the expansion emission component, and the spare expansion emission component is arranged in parallel with and adjacent to the laser emission component, so that the space between the components is further saved.

Drawings

Fig. 1 is a schematic perspective view of an embodiment 1 of an optical ranging module according to the present utility model;

FIG. 2 is an exploded view of the optical ranging module of FIG. 1;

fig. 3 is an exploded view of the optical ranging module of fig. 1 at another angle.

[ Reference numerals description ]

1: A laser emitting assembly; 2: a laser receiving assembly; 21: an objective lens; 22: a light filtering support; 23: a light filter; 24: an inner optical knob; 25: a laser tube; 26: a receiving plate; 3: an optical bracket; 31: a mounting cylinder; 311: a first port; 312: a second port; 32: a first mounting frame; 33: a clamping area; 34: a second mounting frame; 4: expanding a transmitting assembly; 5: a glass sheet; 6: a main board; 61: a notch; a: a first direction.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", "etc. are made with reference to the orientation of fig. 2.

The embodiment of the utility model provides an optical ranging module and a laser ranging instrument, which aim at the technical problems that the appearance design and the structure minimization of the instrument are influenced because the occupation space of optical ranging related parts in the existing laser ranging instrument is larger; the installation cylinder and the first installation frame are arranged in the optical bracket in parallel and adjacent to each other and are respectively used for placing the laser receiving assembly and the laser transmitting assembly, so that the laser receiving assembly and the laser transmitting assembly are arranged in an adjacent mode, the space between the two assemblies is saved, compared with the prior art, the optical assembly structure design is more compact, the volume of the optical bracket is reduced to the greatest extent, and the appearance design of the laser range finder is more flexible.

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

Example 1:

Referring to fig. 1 and 2, the present embodiment provides an optical ranging module, which includes a laser emitting assembly 1, a laser receiving assembly 2 and an optical bracket 3, wherein the laser emitting assembly 1 is used for emitting a laser beam, and the laser receiving assembly 2 is used for receiving the reflected laser beam from the laser emitting assembly 1. The optical mount 3 is provided with a mounting tube 31 and a first mounting bracket 32 in parallel and adjacent to each other, both ends of the mounting tube 31 are penetrated, and the laser receiving assembly 2 is disposed in the mounting tube 31 in the first direction a. The laser emission component 1 is parallel to the laser receiving component 2 and is arranged in the first mounting frame 32, the axial directions of the laser receiving component 2 and the laser emission component 1 are both parallel to the first direction a, and the first direction a is the opening direction of the mounting barrel 31, which can be understood as that in the mounting barrel 31, the laser beam can be ensured to be transmitted from one end of the laser receiving component 2 to the other end through the opening of the mounting barrel 31. In addition, the laser receiving assembly 2 and the laser transmitting assembly 1 are kept in a parallel state, and meanwhile, the transmitting end of the laser transmitting assembly 1 and one end of the laser receiving assembly 2 are kept to be consistent, so that the laser beam can be transmitted and received conveniently.

The laser emission component 1 and the laser receiving component 2 are arranged adjacently in parallel, the width of the optical bracket 3 can be reduced by 5-12 mm on the original size, the structural design of the optical component of the handheld laser range finder is more compact, the volume of the optical bracket 3 is reduced to the greatest extent, and therefore the appearance design of the laser range finder is more flexible.

Referring to fig. 1 and 2, the present embodiment provides an optical ranging module, and the laser receiving assembly 2 includes an objective lens 21 and an optical filter 23 sequentially arranged in a mounting barrel 31, wherein the objective lens 21 is disposed at a first port 311 of the mounting barrel 31 perpendicular to a first direction a, and the first port 311 faces in accordance with a direction in which the laser emitting assembly 1 emits laser light.

The filter 23 is opposed to and parallel to the objective lens 21, and the filter 23 is provided in the middle of the mount tube 31. The objective lens 21 is a component of the laser receiving assembly 2 that receives the laser beam first, and then the optical filter 23 processes the laser beam projected by the objective lens 21, and how the optical filter 23 processes the laser beam is not described in detail herein.

Referring to fig. 1 and 3, the present embodiment provides an optical ranging module, in order to facilitate replacing the optical filter 23, the laser receiving assembly 2 further includes a filter support 22, the optical filter 23 is embedded in the filter support 22, the middle of the mounting barrel 31 is recessed to form a clamping area 33, and the filter support 22 is clamped on the side wall of the mounting barrel 31 along the direction of the recess of the mounting barrel 31. In order to ensure that the optical filter 23 can normally transmit the laser beam, a light hole is reserved in the end portion of the clamping area 33 along the first direction a, which corresponds to the area of the optical filter 23.

Referring to fig. 1, 2 and 3, the present embodiment provides an optical ranging module, where the laser receiving assembly 2 further includes an inner optical knob 24 and a laser tube 25, where the laser tube 25 is used to emit a compensating laser beam, and the inner optical knob 24 is used to adjust the intensity of the compensating laser beam. The inner optical knob 24 and the laser tube 25 are respectively connected to the side wall of the mounting barrel 31 between the second port 312 and the clamping area 33, and the second port 312 is opposite to the first port 311, so as to ensure that the laser beam can pass through between the second port 312 and the first port 311. To adjust the amount of light compensation according to the condition of the laser beam transmitted through the filter 23. The inner optical knob 24 and the laser tube 25 are rotatably connected to the inside of the mounting barrel 31, and the optical compensation amount is adjusted by rotating the inner optical knob 24 by different angles. The inner optical button 24 and the laser tube 25 are kept at a predetermined distance from the axis of the mounting barrel 31, i.e., the positions of the inner optical button 24 and the laser tube 25 are set so as to avoid the optical path of the laser beam in the mounting barrel 31.

Referring to fig. 1 and 3, the present embodiment provides an optical ranging module, the laser receiving assembly 2 further includes a receiving plate 26, the receiving plate 26 is used for finally receiving the laser beam from the objective lens 21 and the compensating laser beam from the inner optical knob 24, the receiving plate 26 is parallel to and opposite to the optical filter 23, and the receiving plate 26 is disposed at the second port 312.

Referring to fig. 1, 2 and 3, this embodiment provides an optical ranging module, in order to further satisfy ranging needs, an expansion emission component 4 is further provided, the expansion emission component 4 is a reserved expansion light source emission component, the corresponding optical bracket 3 is further provided with a second mounting frame 34, the second mounting frame 34 is connected to one side of the first mounting frame 32 away from the mounting barrel 31, and the first direction a of the expansion emission component 4 is arranged in the second mounting frame 34 for further expanding the emission light source. In addition, the glass sheet 5 is disposed in the first mounting frame 32 and at the end of the second mounting frame 34 adjacent to the first port 311, and the glass sheet 5 is disposed perpendicular to the first direction a, so as to play a role in waterproof and protecting the expansion transmitting assembly 4 and the laser transmitting assembly 1.

Referring to fig. 1 and 2, the present embodiment provides an optical ranging module, for supporting an optical bracket 3 and other components located in the optical bracket 3, a main board 6 is further provided, the optical bracket 3 is disposed on the main board 6, the mounting cylinder 31 and the first mounting frame 32 are both connected to the main board 6 along the first direction a, and a gap 61 is reserved at a position of the main board 6 corresponding to the mounting cylinder 31 so as to play a role of avoiding air, and interference between the components is reduced.

Referring to fig. 1 and 3, the present embodiment provides an optical ranging module, in which an inner optical knob 24 and a laser tube 25 are disposed perpendicular to a main board 6, so that the laser tube 25 emits a compensating laser beam from bottom to top; the clamping area 33 is formed by the inward sinking of the side of the mounting cylinder 31 facing away from the main board 6, i.e. the clamping area 33 is formed from top to bottom.

The embodiment provides a specific workflow of an optical ranging module, which is as follows: first, the laser beam is emitted by the laser emitting component 1, transmitted to the target position to be measured, reflected, and transmitted back to the laser receiving component 2. Then, the objective lens 21, the optical filter 23 and the receiving plate 26 are sequentially passed through the mounting cylinder 31, and at the same time, the laser tube 25 and the inner optical knob 24 are matched to emit compensating laser beams to the receiving plate 26 according to the condition that the receiving plate 26 receives laser, so as to complete the optical transmission process of the optical ranging module.

Example 2:

The embodiment provides a laser range finder, which comprises an optical range finding module in embodiment 1.

In addition, it is worth to be explained that the laser range finder provided by the embodiment is available both indoors and outdoors, indexes such as measurement distance are the same as those of the range finder in the prior art, but the size, particularly the width, of the whole instrument is obviously reduced, and the appearance design of the instrument is more flexible and changeable so as to meet different use requirements. In addition, if the laser ranging principle is not fully described in the above description, reference is made to the prior art.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (9)

1. An optical ranging module, characterized in that:

comprises a laser emitting component (1), a laser receiving component (2) and an optical bracket (3);

The optical brackets (3) are arranged in parallel and are adjacently provided with a mounting cylinder (31) and a first mounting frame (32);

The mounting cylinder (31) is provided with a through hole along a first direction (a), and the laser receiving component (2) is arranged in the through hole of the mounting cylinder (31);

the laser emission assembly (1) is arranged in the first mounting frame (32);

The axial directions of the laser receiving component (2) and the laser transmitting component (1) are parallel to the first direction (a).

2. The optical ranging module as defined in claim 1, wherein:

The laser receiving assembly (2) comprises an objective lens (21) and an optical filter (23) which are sequentially arranged in the mounting cylinder (31);

The objective lens (21) is arranged perpendicular to the first direction (a) at a first port (311) of the mounting cylinder (31);

The optical filter (23) is opposite to and parallel to the objective lens (21), and the optical filter (23) is arranged in the middle of the mounting cylinder (31).

3. The optical ranging module as defined in claim 2, wherein:

the laser receiving assembly (2) further comprises a light filtering bracket (22);

the optical filter (23) is embedded in the optical filter bracket (22);

the middle part of the mounting cylinder (31) is concavely provided with a clamping area (33);

The filter support (22) is clamped on the side wall of the mounting cylinder (31) along the inward sinking direction of the mounting cylinder (31).

4. An optical ranging module as claimed in claim 3, wherein:

the laser receiving assembly (2) further comprises an inner optical button (24) and a laser tube (25);

The inner optical button (24) and the laser tube (25) are connected to the side wall of the mounting cylinder (31) between the second port (312) and the clamping area (33);

the inner optical button (24) is rotationally connected with the laser tube (25);

the inner optical button (24) and the laser tube (25) are kept at a preset distance from the axis of the mounting cylinder (31);

The second port (312) is disposed opposite to the first port (311).

5. The optical ranging module as defined in claim 4, wherein:

the laser receiving assembly (2) further comprises a receiving plate (26);

The receiving plate (26) is arranged in parallel with and opposite to the optical filter (23), and the receiving plate (26) is arranged at the second port (312).

6. The optical ranging module as defined in claim 2, wherein:

the device also comprises an expansion emission component (4) and a glass sheet (5);

The optical bracket (3) is also provided with a second mounting rack (34);

The second mounting frame (34) is connected to one side of the first mounting frame (32) away from the mounting cylinder (31);

The expansion transmitting assembly (4) is arranged in the second mounting frame (34);

The glass sheet (5) is disposed within the first mount (32) and the second mount (34) is adjacent an end of the first port (311).

7. The optical ranging module as defined in claim 4, wherein:

the device also comprises a main board (6);

the optical bracket (3) is arranged on the main board (6);

the mounting cylinder (31) and the first mounting frame (32) are connected to the main board (6);

A notch (61) is reserved at the position of the main board (6) corresponding to the mounting cylinder (31).

8. The optical ranging module as defined in claim 7, wherein:

the inner optical button (24) and the laser tube (25) are both arranged perpendicular to the main board (6);

One side of the mounting cylinder (31) deviating from the main board (6) is concavely provided with the clamping area (33).

9. A laser rangefinder, its characterized in that: comprising an optical ranging module as claimed in any of claims 1-8.