CN211717443U

CN211717443U - Lens device and laser projection device

Info

Publication number: CN211717443U
Application number: CN202020727253.XU
Authority: CN
Inventors: 石昕; 邢星
Original assignee: Northwest Instrument Shanghai Co ltd; Northwest Instrument Inc
Current assignee: Northwest Instrument Shanghai Co ltd; Northwest Instrument Inc
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-10-20
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses a camera lens device and laser dotting device, the camera lens device includes the lens cone and is fixed in laser emission subassembly, beam shaping subassembly, the reflection of light subassembly in the lens cone, first laser beam is launched to the laser emission subassembly, first laser beam converts straight second laser beam into through beam shaping subassembly, reflection of light subassembly includes two at least reflectors, the relative second laser beam slope of reflector, the mid portion of second laser beam directly jets out, form first output laser beam, the outside part of second laser beam forms the different output laser beam of two at least ways direction through two at least reflectors reflection of light. The utility model discloses use single laser instrument to realize the projection effect of a plurality of laser points, reduced the quantity that the laser instrument used, reduced manufacturing cost and use consumption, it is long when increasing the use of instrument simultaneously.

Description

Lens device and laser projection device

Technical Field

The utility model relates to a laser projection device technique especially relates to a camera lens device and laser projection device.

Background

Laser demarcation devices are used in more and more occasions as engineering instruments. The existing laser line projector generally includes a housing, a laser, and a light splitting element. The laser and the light splitting element are integrated in the shell, the laser in the shell emits a single laser line beam, and horizontal or vertical light can be formed on a target object through the light splitting effect of the light splitting element. Thus, when a horizontal or vertical line is required, work can be performed based on the light.

However, the existing laser line projector can only project single horizontal or vertical lines generally, and cannot meet the requirement of the occasion of projecting laser in multiple directions simultaneously, if the laser line projector needs to project in multiple directions, the laser line projector needs to be matched with the laser line projector for use, so that the use number of lasers is increased, the use cost is increased, in addition, the use power consumption of the lasers is also higher, and the use time of the laser line projector is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a camera lens device and laser projection device.

In order to achieve the above object, the utility model provides a following technical scheme: a lens device comprises a lens barrel, a laser emitting assembly, a beam shaping assembly and a reflecting assembly, wherein the laser emitting assembly is fixed in the lens barrel and used for emitting a first laser beam, the beam shaping assembly is arranged at the downstream of the laser emitting assembly and used for converting the first laser beam into a straight second laser beam, the reflecting assembly is arranged at the downstream of the beam shaping assembly and comprises at least two reflecting pieces, the reflecting pieces are inclined relative to the second laser beam, an optical path is formed between the at least two reflecting pieces, the middle part of the second laser beam is directly emitted through the optical path to form a first output laser beam, the outer part of the second laser beam is reflected by the at least two reflecting pieces to form at least two output laser beams with different directions, and the output laser beams are vertical to the first output laser beam, and the lens barrel is provided with a first light outlet hole for outputting the first output laser beam.

Preferably, the light reflecting assembly includes a first light reflecting sheet and a second light reflecting sheet, the outer portion of the second laser beam is reflected by the first light reflecting sheet to form a second output laser beam, the outer portion of the second laser beam is reflected by the second light reflecting sheet to form a third output laser beam, and the second output laser beam and the third output laser beam are located on the same plane and have opposite directions and are both perpendicular to the first output laser beam.

Preferably, the first reflector and the second reflector are symmetrically located at two sides of the light path, one surfaces of the first reflector and the second reflector, which are used for reflecting the second laser beam, are reflecting surfaces, and an inclination angle of 45 degrees is formed between the reflecting surfaces and the second laser beam.

Preferably, the laser emission assembly comprises a laser tube seat and a laser tube, the laser tube seat is fixed in the lens barrel, and the laser tube is fixed in the laser tube seat.

Preferably, the laser emitting assembly further comprises a laser driving board electrically connected with the laser tube.

Preferably, the beam shaping assembly comprises a focusing lens pressing ring and a focusing lens, the focusing lens pressing ring is fixed in the lens barrel, and the focusing lens is fixed on the focusing lens pressing ring.

Preferably, the light reflecting assembly further comprises a reflector base fixedly connected with the lens barrel, and the light reflecting piece is fixed in the reflector base.

Preferably, the reflector base is provided with a second light-emitting hole and a third light-emitting hole for outputting the two output laser beams respectively.

The utility model discloses still announced another technical scheme: a laser projection device comprises the lens device.

Preferably, the laser pointing device further includes a housing, the lens device is installed in the housing, and at least three light output windows for outputting the first output laser beam and the output laser beam are provided on the housing, respectively.

The utility model has the advantages that: the utility model discloses use single laser instrument to realize the projection effect of a plurality of laser points, reduced the quantity that the laser instrument used, therefore reduced manufacturing cost, simultaneously because only use single laser instrument, so can reduce and use the consumption, long when the use of increase instrument.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a lens apparatus according to the present invention;

fig. 2 is a schematic perspective view of the lens device of the present invention;

fig. 3 is a schematic perspective view of the laser pointing device of the present invention;

reference numerals:

100. the laser projection device comprises a lens device, 10, a lens barrel, 11, a first light emitting hole, 20, a laser emitting component, 21, a laser tube seat, 22, a laser tube, 23, a laser driving plate, 30, a beam shaping component, 31, a focusing mirror pressing ring, 32, a focusing lens, 40, a light reflecting component, 41, a first light reflecting sheet, 42, a second light reflecting sheet, 43, a first light reflecting mirror seat, 431, a second light emitting hole, 44, a second light reflecting mirror seat, 441, a third light emitting hole, 45, a light path, 46, a screw, 50, a first laser beam, 60, a second laser beam, 70, a first output laser beam, 80, a second output laser beam, 90, a third output laser beam, 200, a laser projection device, 300, a shell, 301 and a light output window.

Detailed Description

The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

The utility model discloses a camera lens device and laser projection point device carries out the reflection of a plurality of directions respectively to laser through using a plurality of independent reflection of light pieces for single laser instrument can realize the projection effect of a plurality of laser points simultaneously.

Referring to fig. 1 and 2, the present invention discloses a lens device 100, including lens barrel 10 and laser emitting assembly 20 fixed in lens barrel 10, light beam shaping assembly 30, reflecting assembly 40, laser emitting assembly 20 emits first laser beam 50, first laser beam 50 is converted into straight second laser beam 60 through light beam shaping assembly 30, the middle part of second laser beam 60 is directly emitted to form first output laser beam 70, the outer part is reflected by reflecting assembly 40 to form at least two paths of

output laser beams

80, 90 perpendicular to first output laser beam 70.

Specifically, in this embodiment, the laser emitting assembly 20 includes a laser tube seat 21, a laser tube 22 and a laser driving board 23, wherein the laser tube seat 21 is fixed in the lens barrel 10 and disposed near the rear end of the lens barrel 10, the laser tube 22 is fixed in the laser tube seat 21, the laser driving board 23 is electrically connected to the laser tube 22, and the laser tube 22 emits the first laser beam 50 under the driving of the laser driving board 23.

The beam shaping assembly 30 is fixed in the lens barrel 10 and located downstream of the laser emitting assembly 20, and is used for converting the first laser beam 50 into a flat second laser beam 60. In this embodiment, the beam shaping assembly 30 specifically includes a focusing lens pressing ring 31 and a focusing lens 32, wherein the focusing lens pressing ring 31 is fixed in the lens barrel 10, the focusing lens 32 is fixed on the focusing lens pressing ring 31, and the first laser beam 50 is collimated by the focusing lens 32 and then converted into the parallel second laser beam 60.

The light reflecting assembly 40 is located downstream of the beam shaping assembly 30 and near the front end of the lens barrel 10 for reflecting the second laser beam 60. In this embodiment, the reflective assembly 40 specifically includes a first reflective sheet 41, a second reflective sheet 42, a first reflective mirror seat 43 and a second reflective mirror seat 44, where the first reflective sheet 41 and the second reflective sheet 42 are respectively located on the light paths on the two sides of the second laser beam 50, and an optical path 45 is formed between the first reflective sheet 41 and the second reflective sheet 42, and the middle portion of the second laser beam 60 is directly emitted through the optical path 45, that is, directly emitted according to the original optical path, to form a first output laser beam 70; the light beams at two sides of the second laser beam 60 are reflected by the first reflector 41 to form a second output laser beam 80, the light beams at the other side are reflected by the second reflector 42 to form a third output laser beam 90, and the second output laser beam 80 and the third output laser beam 90 are located on the same plane and have opposite directions and are both perpendicular to the first output laser beam 70.

In this embodiment, the first reflector 41 and the second reflector 42 are preferably inclined at an angle of 45 ° between the reflective surface of the first reflector 41 and the second laser beam 60, and between the reflective surface of the second reflector 42 and the second laser beam 60, so that light rays on two sides of the second laser beam 60 are reflected by the first reflector 41 and the second reflector 42, respectively, to form a second output laser beam 80 and a third output laser beam 90 which are opposite in direction on the same plane and perpendicular to the first output laser beam 70, for example, the first output laser beam 70 is in the horizontal direction, the second output laser beam 80 is in the vertical direction, and the third output laser beam 90 is in the vertical direction.

In addition, in the present embodiment, the first reflector 41 and the second reflector 42 are preferably symmetrically located on both sides of the light path 45, that is, are axisymmetric with respect to the light path 45.

The first reflector holder 43 and the second reflector holder 44 are fixed on the lens barrel 10, and are respectively used for fixing the first reflector 41 and the second reflector 42. Specifically, the first reflector holder 43 is fixed at the upper end of the lens barrel 10 near the front end for fixing the first reflector 41, and the second reflector holder 43 is fixed at the lower end of the lens barrel 10 near the front end for fixing the second reflector 42. The first mirror mount 43 and the second mirror mount 44 may be fixed to corresponding positions of the lens barrel 10 by at least one screw 46 (e.g., an allen cap screw).

In other alternative embodiments, the number, inclination angle, arrangement position, etc. of the light reflecting sheets may not be limited to those defined in the present embodiment, and the number, output direction, etc. of the corresponding laser beams are not limited to those defined herein. If the four reflectors can be arranged, the four reflectors are uniformly distributed along the circumferential direction of the light path, and the inclination angle of each reflector relative to the second laser beam 60 is also 45 degrees, so that the four reflectors are opposite pairwise, the two opposite reflectors respectively reflect the second laser beam 60 into two paths of output laser beams which are positioned on the same plane and have opposite directions, and finally, the four reflectors divide the second laser beam 60 into five paths of output laser beams for output.

In addition, the front end of the lens barrel 10 is provided with a first light exit hole 11 for outputting the first output laser beam 70, the first mirror base 43 is provided with a second light exit hole 431 for outputting the second output laser beam 80, and the second mirror base 44 is provided with a third light exit hole 441 for outputting the third output laser beam 90.

As shown in fig. 3, the present invention discloses a laser projection device 200, which includes the above-mentioned lens device 100 and the housing 300, wherein the lens device 100 is installed in the housing 300, and the housing 300 is provided with at least three light output windows 301, in this embodiment, the housing 300 is provided with three light output windows 301, the positions of the three light output windows 301 on the housing 300 correspond to the positions of the three light exit holes on the lens device 100, specifically, the three light output windows 301 on the housing 300 are respectively disposed at the front end, the upper end and the lower end of the housing 300.

The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art can still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention, therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications without departing from the present invention, and should be covered by the claims of the present patent application.

Claims

1. A lens device is characterized in that the device comprises a lens barrel, a laser emitting component, a beam shaping component and a reflecting component, wherein the laser emitting component, the beam shaping component and the reflecting component are fixed in the lens barrel, the laser emitting component is used for emitting a first laser beam, the beam shaping component is arranged at the downstream of the laser emitting component and is used for converting the first laser beam into a straight second laser beam, the reflecting component is arranged at the downstream of the beam shaping component and comprises at least two reflecting pieces, the reflecting pieces are inclined relative to the second laser beam, an optical path is formed between the at least two reflecting pieces, the middle part of the second laser beam is directly emitted through the optical path to form a first output laser beam, and the outer part of the second laser beam is reflected by the at least two reflecting pieces to form output laser beams with different directions, the output laser beam is perpendicular to the first output laser beam, and a first light outlet hole for outputting the first output laser beam is formed in the lens barrel.

2. The lens apparatus as claimed in claim 1, wherein the reflective assembly includes a first reflective sheet and a second reflective sheet, the outer portion of the second laser beam is reflected by the first reflective sheet to form a second output laser beam, the outer portion of the second laser beam is reflected by the second reflective sheet to form a third output laser beam, and the second output laser beam and the third output laser beam are located on the same plane and in opposite directions and are perpendicular to the first output laser beam.

3. The lens device as claimed in claim 2, wherein the first and second reflectors are symmetrically disposed on two sides of the light path, and one surfaces of the first and second reflectors for reflecting the second laser beam are reflective surfaces, and the reflective surfaces and the second laser beam form an angle of inclination of 45 °.

4. The lens device as claimed in claim 1, wherein the laser emitting assembly includes a laser tube holder and a laser tube, the laser tube holder is fixed in the lens barrel, and the laser tube is fixed in the laser tube holder.

5. The lens apparatus as claimed in claim 4, wherein the laser emitting assembly further includes a laser driving board electrically connected to the laser tube.

6. The lens device according to claim 1, wherein the beam shaping assembly includes a focusing lens pressing ring and a focusing lens, the focusing lens pressing ring is fixed in the lens barrel, and the focusing lens is fixed on the focusing lens pressing ring.

7. The lens device according to claim 1 or 2, wherein the reflector assembly further includes a reflector base fixedly connected to the lens barrel, and the reflector is fixed in the reflector base.

8. The lens device as claimed in claim 7, wherein the reflector base has a second light-emitting hole and a third light-emitting hole for outputting the two output laser beams respectively.

9. A laser pointing device, comprising the lens device according to any one of claims 1 to 9.

10. The laser pointing device of claim 9, further comprising a housing, wherein the lens device is mounted in the housing, and at least three light output windows are provided on the housing for outputting the first output laser beam and the output laser beam, respectively.