CN211698203U

CN211698203U - Laser distance measuring device

Info

Publication number: CN211698203U
Application number: CN202020280397.5U
Authority: CN
Inventors: 李沛金; 蒲春华
Original assignee: Chongqing Huayang Optics Instrument Co ltd
Current assignee: Chongqing Huayang Optics Instrument Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-10-16
Anticipated expiration: 2030-03-09

Abstract

The embodiment of the utility model provides a laser rangefinder, including objective, focusing lens and eyepiece, still include laser emitter, be used for receiving laser signal's receiving system, speculum and prism, the laser of laser emitter transmission passes through in proper order the speculum focusing lens the prism with the measured object is reachd to the objective, and the measured object reflects laser signal back receiving system. The utility model has the advantages that: the utility model discloses increase speculum and focusing lens, through adjusting speculum and focusing lens after the fixed laser emitter, it is easier to make focus regulation, and the range finding precision is higher, and the production line debugging is simpler, and the performance is more stable, can also observe the function of realizing looking far through the eyepiece when finding range, and the product structure is compacter in addition, saves the space occupancy.

Description

Laser distance measuring device

Technical Field

The utility model belongs to the optical instrument field, concretely relates to laser rangefinder.

Background

In the prior art, modulated light waves generated by the range finder are transmitted, and the reflection and receiving processes need to be assisted by a corresponding optical system, the advantages and disadvantages of the optical system have important effects on the range of the range finder, the measurement precision and the stability of the range finder, the structure of the optical system directly influences the structure, the arrangement, the quality and the volume of the whole machine, the laser range finder needs three optical systems, one is a telescopic system with aiming, the other is a laser transmitting system, the other is a laser receiving system, the optical system of the range finder at present has many defects, the whole product is large in size, large in lens, large in assembly difficulty and inconvenient to carry, and the prior art needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the embodiment of the utility model provides a laser rangefinder, including objective, focusing lens and eyepiece, still include laser emitter, be used for receiving laser signal's receiving system, speculum and prism, the laser of laser emitter transmission passes through in proper order the speculum focusing lens the prism with objective reachs the testee, and the testee reflects laser signal back to receiving system.

Further, the prism includes a first prism and a second prism, and the second prism is obliquely arranged on the first prism.

Furthermore, an interlayer is arranged between the first prism and the second prism, and the interlayer is provided with a round hole through which light can pass.

Furthermore, a liquid crystal panel for displaying the distance measuring parameters is arranged between the ocular and the second prism.

Further, the liquid crystal panel is connected with a main controller, and the receiving system is connected with the main controller.

Further, the receiving system is vertically aligned with the objective lens.

Furthermore, the reflector is obliquely arranged at the right end of the laser emitter, the focusing lens is positioned above the reflector, and the self direction of the focusing lens and the reflector can be adjusted.

The utility model has the advantages that: the utility model discloses increase speculum and focusing lens, through adjusting speculum and focusing lens after the fixed laser emitter, it is easier to make focus regulation, and the range finding precision is higher, and the production line debugging is simpler, and the performance is more stable, can also observe the function of realizing looking far through the eyepiece when finding range, and the product structure is compacter in addition, saves the space occupancy.

Drawings

Fig. 1 is a schematic structural diagram of a laser distance measuring device in an embodiment of the present invention.

Fig. 2 is a partial enlarged view of a portion a of a laser distance measuring device in an embodiment of the present invention.

Fig. 3 is a block diagram of a laser distance measuring device according to an embodiment of the present invention.

Reference numerals: 10-objective lens, 20-focusing lens, 30-eyepiece, 40-laser emitter, 50-receiving system, 60-reflector, 70-prism, 71-first prism, 72-second prism, 73-interlayer, 731-round hole, 80-liquid crystal panel and 90-main controller.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 and fig. 3, fig. 1 is a schematic structural diagram of a laser distance measuring device in an embodiment of the present invention, including an objective lens 10, a focusing lens 20, an eyepiece 30, a laser emitter 40, a receiving system 50 for receiving a laser signal, a reflector 60, and a prism 70, the laser emitted by the laser emitter 40 sequentially passes through the reflector 60, the focusing lens 20, the prism 30 and the objective lens 10 to reach the object to be measured, the object to be measured reflects the laser signal back to the receiving system 50, the prism 70 includes a first prism 71 and a second prism 72, the second prism 72 is obliquely disposed on the first prism 71, a liquid crystal panel 80 for displaying the ranging parameters is disposed between the eyepiece 30 and the second prism 72, the liquid crystal panel 80 is connected to a main controller 90, and the receiving system 50 is connected to the main controller 90. In use, a user faces the ocular 30, aims the objective lens 10 at a distant object to be measured, turns on the laser emitter 40, the laser passes through the reflector 60, the focusing lens 20, the first prism 71 and the objective lens 10 from the inside of the device in sequence, then the laser signal reflected by the measured object is received by the receiving system 50, the receiving system 50 sends the signal to the main controller 90, after the main controller 90 processes the information, the distance measurement parameters are transmitted to the liquid crystal panel 80. referring to fig. 2, the user's sight line passes through the eyepiece 30 and the second prism 72, then enters the first prism 71, and then is consistent with the optical path of the laser, thereby realizing a telescopic function, the liquid crystal panel 80 is provided between the second prism 72 and the eyepiece 30, can also know the range finding parameter of testee when satisfying the user telescope, in addition, objective 10 and eyepiece 30 in this scheme are all prior art in the telescope.

In some preferred embodiments, a spacer 73 is disposed between the first prism 71 and the second prism 72, the spacer 73 is provided with a circular hole 731 for allowing light to pass through, the spacer 73 can block stray light generated when the laser light passes through the first prism 71, interference to the sight of the human eye is eliminated, and the circular hole 731 is only for the sight of the human eye to pass through.

In some preferred embodiments, the receiving system 50 is vertically aligned with the objective lens 10, the reflector 60 is obliquely disposed at the right end of the laser emitter 40, the focusing lens 20 is located above the reflector 60, the reflector 60 is used to change the moving direction of the laser, so as to shorten the lateral distance, and further to make the reflector 60, the focusing lens 20 and the laser emitter 40 more compact, and reduce the space occupation, and the focusing lens 20 and the reflector 60 can both adjust their orientations so as to be clearer and more precise.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer 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.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. A laser ranging apparatus includes an objective lens (10), a focus lens (20), and an eyepiece lens (30), and is characterized in that: still include laser emitter (40), be used for receiving laser signal's receiving system (50), speculum (60) and prism (70), the laser that laser emitter (40) transmitted passes through in proper order speculum (60) focusing lens (20) prism (70) with objective (10) reachs the testee, and the testee reflects laser signal back receiving system (50).

2. A laser ranging device as claimed in claim 1, characterized in that: the prism (70) comprises a first prism (71) and a second prism (72), and the second prism (72) is obliquely arranged on the first prism (71).

3. A laser ranging device as claimed in claim 2, characterized in that: an interlayer (73) is arranged between the first prism (71) and the second prism (72), and a round hole (731) through which light can pass is arranged on the interlayer (73).

4. A laser ranging device as claimed in claim 3, characterized in that: and a liquid crystal panel (80) for displaying the distance measuring parameters is arranged between the ocular lens (30) and the second prism (72).

5. A laser ranging device as claimed in claim 4, wherein: the liquid crystal panel (80) is connected to a main controller (90), and the receiving system (50) is connected to the main controller (90).

6. A laser ranging device as claimed in claim 1, characterized in that: the receiving system (50) is vertically aligned with the objective lens (10).

7. A laser ranging device as claimed in claim 1, characterized in that: the reflecting mirror (60) is obliquely arranged at the right end of the laser emitter (40), the focusing lens (20) is positioned above the reflecting mirror (60), and the self direction of the focusing lens (20) and the reflecting mirror (60) can be adjusted.