CN105785583B - A kind of multi-line collimated light beam laser transmitting antenna - Google Patents
A kind of multi-line collimated light beam laser transmitting antenna Download PDFInfo
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- CN105785583B CN105785583B CN201610355501.0A CN201610355501A CN105785583B CN 105785583 B CN105785583 B CN 105785583B CN 201610355501 A CN201610355501 A CN 201610355501A CN 105785583 B CN105785583 B CN 105785583B
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- collimated light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0916—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/0944—Diffractive optical elements, e.g. gratings, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Semiconductor Lasers (AREA)
Abstract
The present invention discloses a kind of multi-line collimated light beam laser transmitting antenna, including：Laser, collimation lens, grating lens and the diverging lens set gradually along light incident direction.Multi-line collimated light beam laser transmitting antenna provided by the invention, the light beam that laser is sent are collimated collimated into collimated light beam, produce multiorder diffractive light beam by grating lens, then produce a multi-line collimated light beam rectangle light curtain through diverging lens.The rectangle light curtain lines of generation are ultra-fine, and line thickness can reach 0.1mm, and line thickness is adjustable to 50mm wide.The collimated light beam rectangle light curtain of generation, lines hot spot is continuous, sharpness of border, brightness uniformity, and the brightness between lines is also relatively uniform.The present invention is used as light source using single laser, low in energy consumption, small, luminous power is big, user can adjust lens parameter as needed adjust light beam bar number, every illuminate line thickness etc., it is easy to use.
Description
Technical field
The present invention relates to collimated light beam transmitting antenna, and in particular to a kind of laser light source, the hair for sending a plurality of collimated light beam
Penetrate antenna.
Background technology
Collimated light beam is needed in every field such as test, measurement, intellectual analysis, now most of is come real with multiple rows of LED
It is existing, but there are the deficiency such as power consumption is big, volume is big, luminous power is low by LED.
The content of the invention
To solve the above problems, the present invention, which provides one kind, uses single laser as light source, low-power consumption high power multi-line
Collimated light beam transmitting antenna.
The technical scheme is that：A kind of multi-line collimated light beam laser transmitting antenna, including：Along light incident direction
Laser, collimation lens, grating lens and the diverging lens set gradually.
Further, the collimation lens near the distance between one side and target surface of laser of laser for 14~
24mm。
Further, the center air thickness between the grating lens and collimation lens is 1~20mm.
Further, the f numbers of the collimation lens are 1.0~2.0, and the clear aperature of the diverging lens is more than or equal to
20mm。
Further,Wherein d is the grating constant of the grating lens, and a is the light
The slit width of grid lens.
Further, further include：Laser fixed seat, preceding lens barrel, rear lens barrel and protecgulum；
Lens barrel is installed on laser and fixes base rear end after described, and the preceding lens barrel is installed on laser degree fixed seat front end, institute
State protecgulum and be installed on preceding lens barrel front end；
Laser is installed in laser fixed seat, and collimation lens, grating lens and diverging lens are installed in preceding lens barrel
It is interior.
Further, the preceding lens barrel is threadedly coupled with laser fixed seat.
Further, the protecgulum is threadedly coupled with preceding lens barrel.
Further, the protecgulum can relatively preceding lens barrel displacement distance be 8~16mm, the bore of the protecgulum for 5~
30mm。
Further, heat sink is set in the laser fixed seat, sets line chamber in the rear lens barrel.
Multi-line collimated light beam laser transmitting antenna provided by the invention, the light beam that laser is sent are collimated collimated
Into collimated light beam, multiorder diffractive light beam is produced by grating lens, then a multi-line collimated light beam square is produced through diverging lens
Shape light curtain.The rectangle light curtain lines of generation are ultra-fine, and line thickness can reach 0.1mm, and line thickness is adjustable to 50mm wide.Produce
Collimated light beam rectangle light curtain, lines hot spot is continuous, sharpness of border, brightness uniformity, and the brightness between lines is also relatively uniform.
The present invention is used as light source using single laser, low in energy consumption, small, luminous power is big, and user can adjust lens as needed and join
Number adjusts light beam bar number, every illumination line thickness etc., easy to use.
Brief description of the drawings
Fig. 1 is specific embodiment of the invention structure diagram.
Fig. 2 is specific embodiment of the invention actual effect schematic diagram.
Fig. 3 is that optical axis pitch angle of the present invention and line length angle illustrate schematic diagram.
In figure, 1, protecgulum, 2, diverging lens, 3, preceding lens barrel, 4, grating lens, 5, collimation lens, 6, laser, 7, laser
Device fixed seat, 8, rear lens barrel, α, optical axis pitch angle, β, line length angle.
Embodiment
Below in conjunction with the accompanying drawings and the present invention will be described in detail by specific embodiment, and following embodiments are to the present invention
Explanation, and the invention is not limited in implementation below.
As shown in Figure 1, multi-line collimated light beam laser transmitting antenna provided by the invention, including along light incident direction according to
Laser 6, collimation lens 5, grating lens 4 and the diverging lens 2 of secondary setting.
Laser 6 can use the semiconductor laser that c-mount encapsulation luminous powers are more than or equal to 1W, can effectively improve output
The brightness of hot spot.Collimation lens 5 is simple lens or balsaming lens, and grating lens 4 are the lenticular lenses that can produce multiorder diffractive, diffusion
Lens 2 refer to that cylindrical lens, cylindrical mirror, Bao Weier prism etc. can make the lens or lens group of light one direction diverging.
Present invention additionally comprises laser fixed seat 7, preceding lens barrel 3, rear lens barrel 8 and protecgulum 1.Laser 6 is installed on laser
In fixed seat 7, grating lens 4, collimation lens 5 and diverging lens 2 are installed in preceding lens barrel 3.Set and dissipate in laser fixed seat 7
Backing, can quick conductive heat dissipation.Preceding lens barrel 3 is installed on the front end of laser fixed seat, and protecgulum 1 is installed on preceding 3 front end of lens barrel.Mirror afterwards
Cylinder 8 is installed on 7 rear end of laser fixed seat, big space is left in rear lens barrel 8 as line chamber is walked, in order to cabling, and favorably
In heat dissipation and there is sealing function.
The light path principle of the present invention is that laser 6 sends light beam and is collimated lens 5 and is collimated into collimated light beam, saturating by grating
Mirror 4 produces multiorder diffractive light beam, then produces a rectangle light curtain (such as Fig. 2 with multi-line collimated light beam by diverging lens 2
It is shown).The parameter of caused collimated light beam, such as light line number, optical axis pitch angle α (as shown in Figure 3), line length angle beta (such as
Shown in Fig. 3), line thickness etc., can be adjusted by adjusting the distance between each lens etc..
It near the distance between one side and target surface of laser 6 of laser 6 is 14 that the present embodiment, which sets collimation lens 5,
~24mm, can make the line thickness at 1 preceding 2 meter of protecgulum adjustable between 0.1~50mm.Between collimation lens 5 and laser 6
Distance adjustment is to rotate to realize by preceding lens barrel 3, and preceding lens barrel 3 is threadedly coupled with laser fixed seat 7, passes through lens barrel before rotation
3 can drive diverging lens 2, grating lens 4 and collimation lens 5 along collimated ray central rotation and move back and forth, and be adjusted with this
Collimation lens 5 arrives the distance of laser 6.
The present embodiment sets protecgulum 1 to be threadedly coupled with preceding lens barrel 3, and rotation protecgulum 1 can move back and forth protecgulum 1, so as to adjust
Whole line length angle beta.It is 8~16mm to set relatively preceding 3 displacement distance of lens barrel of protecgulum 1, and it is 5~30mm to coordinate 1 bore of protecgulum, can
Make line length angle beta in an interior adjusting in a big way.Such as 1 moving range of protecgulum is 12mm, when 1 bore of protecgulum is 20mm, line
The adjustable range of bar length angle beta is 70 °~120 °.
Optical axis pitch angle α is determined by the distance between grating lens 4 and collimation lens 5, sets grating lens 4 saturating with collimation
When center air thickness between mirror 5 is 1~20mm, make 1 °≤optical axis pitch angle α≤6 °, staff can be arranged as required to
Center air thickness between grating lens 4 and collimation lens 5.
To make the beam diameter strong applicability after collimation, collimated beam diameter is met 1~20mm, collimation lens can be set
5 f numbers are 1.0~2.0, and 2 clear aperature of diverging lens is more than or equal to 20mm.
Directional light number of lines is determined by 4 parameter of grating lens, when grating lens 4 meet When,
The collimated light beam of unnecessary 10 can be produced, andIt can guarantee that the brightness uniformity between lines, wherein d is the light of grating lens 4
Grid constant, a are the slit width of grating lens 4.
Disclosed above is only the preferred embodiment of the present invention, but the present invention is not limited to this, any this area
What technical staff can think does not have creative change, and some improvement made without departing from the principles of the present invention and
Retouching, should all be within the scope of the present invention.
Claims (5)
- A kind of 1. multi-line collimated light beam laser transmitting antenna, it is characterised in that including：Set gradually along light incident direction Laser, collimation lens, grating lens and diverging lens；The collimation lens is 14~24mm near the distance between one side and target surface of laser of laser；Further include：Laser fixed seat, preceding lens barrel, rear lens barrel and protecgulum；Lens barrel is installed on laser and fixes base rear end after described, and the preceding lens barrel is installed on laser degree fixed seat front end, before described Lid is installed on preceding lens barrel front end；Laser is installed in laser fixed seat, before collimation lens, grating lens and diverging lens are installed in lens barrel；The preceding lens barrel is threadedly coupled with laser fixed seat；The protecgulum is threadedly coupled with preceding lens barrel；The protecgulum can relatively preceding lens barrel displacement distance be 8~16mm, the bore of the protecgulum is 5~30mm；Diverging lens is the lens or lens group that can dissipate light one direction.
- 2. multi-line collimated light beam laser transmitting antenna according to claim 1, it is characterised in that the grating lens with Center air thickness between collimation lens is 1~20mm.
- 3. multi-line collimated light beam laser transmitting antenna according to claim 1, it is characterised in that the collimation lens F numbers are 1.0~2.0, and the clear aperature of the diverging lens is more than or equal to 20mm.
- 4. multi-line collimated light beam laser transmitting antenna according to claim 1, it is characterised in thatWherein d is the grating constant of the grating lens, and a is the slit width of the grating lens.
- 5. multi-line collimated light beam laser transmitting antenna according to claim 1, it is characterised in that the laser is fixed Heat sink is set on seat, sets line chamber in the rear lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610355501.0A CN105785583B (en) | 2016-05-25 | 2016-05-25 | A kind of multi-line collimated light beam laser transmitting antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610355501.0A CN105785583B (en) | 2016-05-25 | 2016-05-25 | A kind of multi-line collimated light beam laser transmitting antenna |
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| Publication Number | Publication Date |
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| CN105785583A CN105785583A (en) | 2016-07-20 |
| CN105785583B true CN105785583B (en) | 2018-05-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705887A (en) * | 2016-12-02 | 2017-05-24 | 中国科学院光电技术研究所 | Optical system generating multi-line structure light |
| CN107576882A (en) * | 2017-09-21 | 2018-01-12 | 国家电网公司 | Laser corrector |
| CN111256611A (en) * | 2018-12-03 | 2020-06-09 | 中国商用飞机有限责任公司 | Three-dimensional scanning light output device and three-dimensional scanning system |
| CN110554001A (en) * | 2019-09-06 | 2019-12-10 | 清华大学合肥公共安全研究院 | Optical system structure of laser methane telemetering device |
Citations (5)
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|---|---|---|---|---|
| CN201758240U (en) * | 2010-05-21 | 2011-03-09 | 太原理工大学 | Semiconductor laser collimation beam expander |
| CN104300368A (en) * | 2013-07-15 | 2015-01-21 | 温州泛波激光有限公司 | Semiconductor laser beam combination device |
| CN204975710U (en) * | 2015-08-28 | 2016-01-20 | 成都荣乐激光技术有限公司 | Shaping laser mark system at quarter of electrochromic film |
| CN105258800A (en) * | 2015-11-02 | 2016-01-20 | 杭州南车城市轨道交通车辆有限公司 | Portable three-channel near-deep-UV Raman spectrometer |
| CN205665472U (en) * | 2016-05-25 | 2016-10-26 | 济南和普威视光电技术有限公司 | Multi -thread beam laser emission antenna |
-
2016
- 2016-05-25 CN CN201610355501.0A patent/CN105785583B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201758240U (en) * | 2010-05-21 | 2011-03-09 | 太原理工大学 | Semiconductor laser collimation beam expander |
| CN104300368A (en) * | 2013-07-15 | 2015-01-21 | 温州泛波激光有限公司 | Semiconductor laser beam combination device |
| CN204975710U (en) * | 2015-08-28 | 2016-01-20 | 成都荣乐激光技术有限公司 | Shaping laser mark system at quarter of electrochromic film |
| CN105258800A (en) * | 2015-11-02 | 2016-01-20 | 杭州南车城市轨道交通车辆有限公司 | Portable three-channel near-deep-UV Raman spectrometer |
| CN205665472U (en) * | 2016-05-25 | 2016-10-26 | 济南和普威视光电技术有限公司 | Multi -thread beam laser emission antenna |
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| CN105785583A (en) | 2016-07-20 |
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