CN213689947U - Handheld laser range finder - Google Patents
Handheld laser range finder Download PDFInfo
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- CN213689947U CN213689947U CN202022512382.XU CN202022512382U CN213689947U CN 213689947 U CN213689947 U CN 213689947U CN 202022512382 U CN202022512382 U CN 202022512382U CN 213689947 U CN213689947 U CN 213689947U
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Abstract
The utility model discloses a handheld laser range finder has the casing, is provided with laser emission subassembly, light receiving assembly and prism group in the casing, and the casing outside is provided with the eyepiece assembly that links to each other with prism group, and light receiving assembly includes: the receiving body is provided with a lens cone structure, and the front end of the lens cone structure is provided with an observation lens group; the electronic control main body is connected to the receiving main body and comprises a control circuit board and a receiving circuit board, and the receiving circuit board is electrically connected with the laser receiving module; the LED display instrument is arranged on the outer side of the lens cone structure and is electrically connected with the control circuit board so as to display the distance between a target and an observer; the lens hood is arranged on the outer side of the lens cone structure and covers the LED display; the prism group can present the target and the display content of the LED display instrument in the eyepiece assembly. This handheld laser range finder can also see distance value in the eyepiece when observing the target, has improved handheld laser range finder's convenience of use.
Description
Technical Field
The utility model relates to an optical equipment manufacturing and designing technical field, in particular to handheld laser range finder.
Background
The distance measuring principle of the laser distance measuring instrument is that a laser beam is emitted to a target during working, a photoelectric element receives the laser beam reflected by the target, and a control circuit board built in the laser distance measuring instrument calculates the distance between an observer and the target according to the time difference between the emission and the reception of the laser beam and the light speed.
The range finder appearing on the market at present can only observe the target in the eyepiece, and the distance numerical value between target and the observer needs to switch alone and show or show in other positions beyond the eyepiece, can't carry out the demonstration of distance numerical value in the eyepiece when observing the target, and convenience of use needs further to be improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a handheld laser range finder to can also observe distance data in the eyepiece when observing the target, improve handheld laser range finder convenience of use.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a handheld laser range finder, has the casing, be provided with laser emission subassembly, light receiving assembly and prism group in the casing, the casing outside be provided with the eyepiece assembly that prism group links to each other, light receiving assembly includes:
the receiving body is provided with a lens cone structure, and the front end of the lens cone structure is provided with an observation lens group;
the electronic control main body is connected to the receiving main body and comprises a control circuit board capable of calculating distance and a receiving circuit board used for converting laser signals into electric signals, and the receiving circuit board is electrically connected with a laser receiving module arranged on the receiving main body;
the LED display instrument is arranged on the outer side of the lens cone structure and is electrically connected with the control circuit board so as to display the distance between a target and an observer;
the lens hood is arranged on the outer side of the lens cone structure and covers the LED display instrument;
the prism group is arranged at the rear end of the lens cone structure and can present a target and display contents of the LED display instrument in the eyepiece assembly.
Preferably, the portable electronic device further comprises an electronic compass connected to the lower portion of the receiving body and connected to the control circuit board.
Preferably, the laser emitting assembly comprises a driving circuit board and a laser emitter electrically connected with the driving circuit board.
Preferably, the observation lens group comprises a convex lens, a spacer ring and a light-gathering concave lens from front to back in sequence.
Preferably, the housing comprises a U-shaped top cover, a bottom plate and a front panel, wherein the bottom plate is mounted at the bottom of the U-shaped top cover, and the front panel is mounted at the front end of the U-shaped top cover.
Preferably, the eyepiece assembly comprises a mounting plate which is mounted on the prism group and closes the rear end of the U-shaped top cover.
Preferably, the front panel is further provided with a battery mounting opening for mounting and dismounting the battery.
Preferably, the receiving circuit board is mounted on the receiving body by screws, and the control circuit board is fixed to the receiving circuit board by a mounting member.
The hand-held laser range finder disclosed by the technical scheme is characterized in that a receiving main body in a light receiving assembly is provided with a lens barrel structure, the front end of the lens barrel structure is provided with an observation lens group, the rear end of the lens barrel structure is provided with a prism group and an eyepiece assembly, a laser emitting component is used for emitting laser to an observation target, a laser receiving module in the light receiving assembly is used for receiving the laser reflected by the observation target, a receiving circuit board is used for converting a laser signal into an electric signal, according to the time difference value between laser emitting and receiving, a control circuit board calculates the distance between the target and an observer and displays the distance through an LED display, a lens hood shields the LED display to form a light transmission channel for transmitting light to the prism group, and the prism group arranged at the rear end of the lens barrel structure transmits natural light emitted or reflected by the target and display content of the LED display to the eyepiece assembly, so that the observer can see the distance data displayed on the LED display while seeing the target.
Therefore, the utility model discloses a handheld laser range finder can also see distance numerical value in the eyepiece when observing the target, has improved handheld laser range finder's convenience of use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded schematic view of a hand-held laser rangefinder in accordance with an embodiment of the present invention;
fig. 2 is an exploded schematic view of a laser emitting assembly disclosed in an embodiment of the present invention;
fig. 3 is an exploded view of the light receiving assembly disclosed in the embodiment of the present invention.
The drawings are numbered as follows:
the lens comprises a U-shaped top cover 1, a prism group 2, an eyepiece assembly 3, a laser emission component 4, a bottom plate 5, a battery 6, a front panel 7, an observation lens group 8, an electronic control body 9, a lens barrel structure 10, a receiving body 11, an LED display 12, a lens hood 13, an electronic compass 14, a laser receiving module 15, a driving circuit board 41, a laser emitter 42, a control circuit board 91, a screw 92, a receiving circuit board 93, a convex lens 81, a spacer 82 and a condensing concave lens 83.
Detailed Description
The core of the utility model lies in providing a handheld laser range finder to can also observe distance data in the eyepiece when observing the target, improve handheld laser range finder convenience of use.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, a handheld laser distance measuring device disclosed in the embodiment of the present invention includes a housing, a battery 6, a laser emitting assembly 4, a light receiving assembly and a prism group 2 are disposed in the housing, an eyepiece assembly 3 connected to the prism group 2 is disposed outside the housing, wherein the light receiving assembly in the embodiment includes a receiving main body 11, an electronic control main body 9, an LED display 12 and a light shield 13, as shown in fig. 1 and 3, the receiving main body 11 includes a lens barrel structure 10, an observation lens group 8 is disposed at a front end of the lens barrel structure 10, the electronic control main body 9 is disposed on the receiving main body 11, the electronic control main body includes a control circuit board 91 capable of calculating a distance (i.e., a distance between a target and an observation) and a receiving circuit board 93 for converting a laser signal into an electrical signal, the receiving circuit board is electrically connected to a laser receiving module 15 mounted on the receiving main body 11, the laser receiving module is used for receiving laser signals, the LED display instrument 12 is installed outside the lens barrel structure 10, and the LED display instrument 12 is electrically connected with the control circuit board 91 so as to be able to display a distance value between a target and an observer, the light shield 13 is installed outside the lens barrel structure 10, and the light shield 13 covers the LED display instrument 12, under the action of the light shield 13, the content displayed by the LED display instrument 12 can be transferred to the prism group 2, the prism group 2 is arranged at the rear end of the lens barrel structure 10, as shown in fig. 1, the prism group 2 can present both the target and the display content of the LED display instrument 12 in the eyepiece assembly 3.
It should be noted that, in the present application, the end where the eyepiece assembly 3 is located is a rear end of the handheld laser range finder, and the end opposite to the rear end is defined as a front end of the handheld laser range finder, and in the present application, the front and rear ends or the front and rear ends of other components are defined with reference to this manner.
In the above-mentioned embodiment of the disclosed handheld laser range finder, the receiving body 11 in the light receiving assembly has a lens barrel structure 10, the front end of the lens barrel structure 10 is provided with an observation lens set 8, the rear end is provided with a prism set 2 and an eyepiece assembly 3, the laser emitting component 4 is used for emitting laser to an observation target, the laser receiving module in the light receiving assembly is used for receiving the laser reflected by the observation target, the receiving circuit board 93 is used for converting laser signals into electrical signals, according to the time difference between laser emission and reception, the control circuit board 91 calculates the distance between the target and an observer and displays the distance through the LED display 12, the light shield 13 shields the LED display 12 to form a light transmission channel for transmitting light to the prism set 2, the prism set 2 arranged at the rear end of the lens barrel structure 10 transmits natural light emitted or reflected by the target itself and the display content of the LED display 12 into the eyepiece assembly 3, so that the observer can see the distance data displayed on the LED display 12 while seeing the object. Therefore, the handheld laser range finder disclosed in the embodiment can observe a distance value in an eyepiece while realizing observation of a target, and the use convenience of the handheld laser range finder is improved.
In one embodiment, the casing includes U type overhead guard 1, bottom plate 5 and front panel 7, bottom plate 5 is installed in the bottom of U type overhead guard 1, front panel 7 is installed in the front end of U type overhead guard 1, bottom plate 5 and front panel 7 have formed the encapsulation part of handheld laser range finder, set up the viewing aperture that corresponds with observation lens group 8 on the front panel 7, and allow the transmission mouth of the outside transmission laser of laser emission subassembly 4, for further optimization scheme, still can have the printing opacity piece of guard action in viewing aperture and transmission mouth position installation, in order to avoid observing lens group 8 and laser emitter 42 by the fish tail.
In one case, the eyepiece assembly 3 comprises a mounting plate which is mounted to the prism assembly 2 and which also closes the rear end of the U-shaped dome 1, as shown in fig. 1, so far the U-shaped dome 1, the base plate 5, the front panel 7 and the mounting plate form the entire housing of the hand-held laser rangefinder.
To further optimize the solution, in an embodiment, the handheld laser distance measuring instrument is further provided with an electronic compass 14, the electronic compass 14 is arranged at the lower part of the receiving body 11, and the electronic compass 14 is electrically connected with the control circuit board 91, and the rotation angle of the handheld laser distance measuring instrument can be measured after the electronic compass 14 is arranged, so that the handheld laser distance measuring instrument can measure the distance between not only a single target and an observer, but also two targets, specifically: the distance between an observer and one of the targets is measured through the handheld laser range finder, the distance between the observer and the other target is measured through the handheld laser range finder, the included angle between the two targets is recorded through the electronic compass, and the distance between the two targets can be obtained through the trigonometric function by the control circuit board 91.
As shown in fig. 2, the laser emitting assembly 4 is used for emitting infrared laser for ranging to a target, and includes a driving circuit board 41 and a laser emitter 42 electrically connected to the driving circuit board 41, the battery 6 supplies power to all electric components, and the driving circuit board 41 is used for driving the laser emitter 42 to emit laser and controlling the frequency and time of laser emission.
In one embodiment, the observation lens group 8 includes a convex lens 81, a spacer 82 and a condensing concave lens 83 in sequence from front to back, the convex lens 81 (also called a cylindrical convex lens), the spacer 82 and the condensing concave lens 83 are coaxially disposed, as shown in fig. 3, and of course, a protective lens or a lens with other functions may be added by those skilled in the art as needed.
In consideration of the convenience of replacing or disassembling the battery 6, in one embodiment, the front panel 7 is further provided with a battery mounting hole, the battery 6 can be installed in the handheld laser range finder through the battery mounting hole, and when the battery 6 is replaced or disassembled, the disassembly and the assembly of the battery 6 can be directly completed through the battery mounting hole.
The connection mode of the electronic control body and the receiving body 11 is not limited, and may be a snap connection, an adhesive connection or a fastener connection, in an embodiment, the receiving circuit board 93 is mounted on the receiving body 11 by a screw 92, as shown in fig. 3, the control circuit board 91 is fixed on the receiving circuit board 93 by a mounting member (e.g., a screw buckle), the control circuit board 91 is electrically connected to the receiving circuit board 93, the receiving circuit board 93 is used for receiving laser reflected by a target, natural light emitted or reflected by the target, and the like, and the control circuit board 91 is used for calculating a distance between the target and an observer according to a difference between a laser emission time and a laser reception time.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a handheld laser range finder, has the casing, its characterized in that, be provided with laser emission subassembly (4), light receiving assembly and prism group (2) in the casing, the casing outside be provided with eyepiece assembly (3) that prism group (2) link to each other, light receiving assembly includes:
a receiving body (11) having a lens barrel structure (10), and an observation lens group (8) provided at a front end of the lens barrel structure (10);
the electronic control main body (9) is connected to the receiving main body (11) and comprises a control circuit board (91) capable of calculating the distance and a receiving circuit board (93) used for converting the laser signal into an electric signal, and the receiving circuit board (93) is electrically connected with a laser receiving module (15) installed on the receiving main body (11);
an LED display (12) which is arranged outside the lens barrel structure (10) and is electrically connected with the control circuit board (91) so as to display the distance between a target and an observer;
a light shield (13) which is mounted on the outer side of the lens barrel structure (10) and covers the LED display (12);
the prism group (2) is arranged at the rear end of the lens barrel structure (10) and can present a target and display contents of the LED display instrument (12) in the eyepiece assembly (3).
2. The hand-held laser rangefinder according to claim 1, further comprising an electronic compass (14) connected to a lower portion of the receiving body (11) and connected to the control circuit board (91).
3. The hand-held laser rangefinder of claim 1, wherein the laser emitting assembly comprises a driver circuit board (41) and a laser emitter (42) electrically connected to the driver circuit board (41).
4. The hand-held laser rangefinder according to claim 1, characterized in that the observation lens group (8) comprises, from front to back, a convex lens (81), a spacer ring (82) and a converging concave lens (83).
5. The hand-held laser rangefinder according to claim 1, wherein the housing comprises a U-shaped top cover (1), a bottom plate (5) and a front panel (7), wherein the bottom plate (5) is mounted at the bottom of the U-shaped top cover (1) and the front panel (7) is mounted at the front end of the U-shaped top cover (1).
6. The hand-held laser range finder according to claim 5, wherein the eyepiece assembly (3) comprises a mounting plate mounted on the prism assembly (2) and closing the rear end of the U-shaped top cover (1).
7. The hand-held laser distance measuring instrument according to claim 5, wherein the front panel (7) is further provided with a battery mounting opening for mounting and dismounting a battery.
8. The hand-held laser rangefinder according to claim 1, characterized in that the receiving circuit board (93) is mounted on the receiving body (11) by means of screws (92), the control circuit board (91) being fixed on the receiving circuit board (93) by means of a mounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022512382.XU CN213689947U (en) | 2020-11-03 | 2020-11-03 | Handheld laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022512382.XU CN213689947U (en) | 2020-11-03 | 2020-11-03 | Handheld laser range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213689947U true CN213689947U (en) | 2021-07-13 |
Family
ID=76727384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022512382.XU Active CN213689947U (en) | 2020-11-03 | 2020-11-03 | Handheld laser range finder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213689947U (en) |
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2020
- 2020-11-03 CN CN202022512382.XU patent/CN213689947U/en active Active
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