CN204903868U - Beam expanding lens - Google Patents
Beam expanding lens Download PDFInfo
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- CN204903868U CN204903868U CN201520553869.9U CN201520553869U CN204903868U CN 204903868 U CN204903868 U CN 204903868U CN 201520553869 U CN201520553869 U CN 201520553869U CN 204903868 U CN204903868 U CN 204903868U
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- beam expanding
- lens
- expanding lens
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- rotating disk
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Abstract
The utility model discloses a beam expanding lens, including organizing behind group, carousel and the beam expanding lens before the beam expanding lens, before the beam expanding lens fixed connection of group in a connection port of carousel, behind the beam expanding lens group rotatably connect in another connection port of carousel, organize including two or more than two behind the beam expanding lens, have the difference and expand the battery of lens of restrainting the multiplying power, the battery of lens centers on equidistant the arranging of the central axis of group behind the beam expanding lens. Beam expanding lens organizes after rotating beam expanding lens, and the multiplying power is restrainted in expanding of changeable difference, consequently beam expanding lens can provide different expanding and restraint the multiplying power. Group's sharing before the beam expanding lens, reduce cost, and convenient to use effectively.
Description
Technical field
The utility model relates to optical beam-expanding application, particularly relates to a kind of beam expanding lens.
Background technology
Beam expanding lens is for adjusting diameter and the angle of divergence of laser beam.Along with the development of infrared optics instrument, beam expanding lens is more and more extensive in the application of infrared laser optical field.
At present, be applied to the beam expanding lens of infrared laser, have the consecutive variations Zooming expander of little zoom rate, or the beam expanding lens of fixed multiplying power.But, sometimes need beam expanding lens to provide to have expanding ratio and there is the emergent light expanded greatly than change of different multiplying of discontinuous change in infrared optical system, and existing beam expanding lens can not meet such application demand.
Utility model content
The utility model provides a kind of beam expanding lens, is applied to infrared laser, can provide multiple and expand multiplying power.
For achieving the above object, the utility model provides following technical scheme:
A kind of beam expanding lens, is applied to infrared laser, to comprise before beam expanding lens group after group, rotating disk and beam expanding lens;
Before described beam expanding lens, group is fixedly connected on a connectivity port of described rotating disk, organizes another connectivity port being rotatably connected to described rotating disk after described beam expanding lens;
After described beam expanding lens, group comprises two or more, has the lens combination that difference expands multiplying power, and the central axis that described lens combination is organized after described beam expanding lens is equidistantly arranged.
Alternatively, before described beam expanding lens, group comprises lens barrel and is installed on the lens in described lens barrel.
Alternatively, described lens barrel inwall is provided with delustring screw thread.
Alternatively, described lens combination is adjustable relative to the axial distance organized before described beam expanding lens.
Alternatively, after described beam expanding lens, group after described beam expanding lens is fixed relative to the position of rotation of described rotating disk by buckle by group.
Alternatively, after described beam expanding lens, group comprises three lens combination, and the central axis that three described lens combination are organized after described beam expanding lens is equidistantly arranged.
As shown from the above technical solution, the beam expanding lens that the utility model provides, to comprise before beam expanding lens group after group, rotating disk and beam expanding lens, before beam expanding lens, group is fixedly connected on a connectivity port of rotating disk, and after beam expanding lens, group is connected to another connectivity port of rotating disk.After described beam expanding lens, group comprises two or more, has the lens combination that difference expands multiplying power, and the central axis that lens combination is organized after beam expanding lens is equidistantly arranged.
After described beam expanding lens, group is rotatable relative to rotating disk, therefore by group after rotation beam expanding lens, selects and regulates the lens combination in rear group and front group of beam expanding lens to combine, expanding laser beam.Multiple lens combination that after beam expanding lens, group comprises have and different expand multiplying power, thus make described beam expanding lens can provide different and expand multiplying power.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of beam expanding lens that Fig. 1 provides for the utility model embodiment.
Embodiment
Technical scheme in the utility model is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Please refer to Fig. 1, a kind of beam expanding lens that the utility model embodiment provides, be applied to infrared laser, comprise: group 3 after group 1, rotating disk 2 and beam expanding lens before beam expanding lens;
Before described beam expanding lens, group 1 is fixedly connected on a connectivity port of described rotating disk 2, organizes another connectivity port that 3 are rotatably connected to described rotating disk 2 after described beam expanding lens;
After described beam expanding lens, group 3 comprises two or more, has the lens combination that difference expands multiplying power, and the central axis that described lens combination is organized after described beam expanding lens is equidistantly arranged.
The beam expanding lens being applied to infrared laser described in the present embodiment, to comprise before beam expanding lens group after group, rotating disk and beam expanding lens, before beam expanding lens, group is fixedly connected on a connectivity port of rotating disk, and after beam expanding lens, group is connected to another connectivity port of rotating disk.After described beam expanding lens, group comprises two or more, has the lens combination that difference expands multiplying power, and the central axis that described lens combination is organized after beam expanding lens is equidistantly arranged.
After described beam expanding lens, group is rotatable relative to rotating disk, therefore by group after rotation beam expanding lens, selects and regulates the lens combination in rear group and front group of beam expanding lens to combine, expanding laser beam.Multiple lens combination that after beam expanding lens, group comprises have and different expand multiplying power, thus make described beam expanding lens can provide different and expand multiplying power.
In the present embodiment, before described beam expanding lens, group 1 comprises lens barrel and is installed on the lens in described lens barrel.Usually, in lens barrel, install two to four lens, by regulating the spacing between lens, adjustable beam expanding lens expands effect to laser beam.
Particularly, lens are arranged in lens barrel by the screw thread rotation of lens barrel inwall, can regulate the distance between lens in lens barrel.Preferably, the screw thread of described lens barrel inwall is delustring screw thread, can eliminate the reflection of veiling glare at lens barrel inwall, prevent veiling glare from entering in the main optical path of lens.
In the present embodiment, described rotating disk 2 is round turntable, and before beam expanding lens, the lens barrel of group 1 is fixedly connected on a connectivity port of rotating disk 2, and both are fixedly connected with.
Organize 3 another connectivity ports being connected to rotating disk 2 after beam expanding lens, organize 3 and comprise two or more lens combination after beam expanding lens, described lens combination has and different expands multiplying power, can combine respectively with before beam expanding lens, formation different multiplying expand ratio.
Described multiple lens combination is equidistantly arranged around the central axis of rear group, and as shown in Figure 1, in figure, 31,32 and 33 refer to lens combination respectively.Organize 3 relative with rotating disk 2 rotatable after beam expanding lens, therefore when using described beam expanding lens to expand laser beam, rotate group 3 after beam expanding lens, the lens combination and front group of beam expanding lens that expand multiplying power required for selection are combined, and required expand multiplying power to obtain.
In the present embodiment, after described beam expanding lens, organize 3 be provided with buckle with the connecting portion of rotating disk 2, switch beam expanding lens expand multiplying power time, 3 are organized after rotating beam expanding lens, lens combination target being expanded multiplying power rotates to position location place, after beam expanding lens fixed by snap, group 3 is relative to the position of rotation of rotating disk 2, thus completes the switching to expanding multiplying power.
Preferably, described lens combination is adjustable relative to the axial distance organized before beam expanding lens, in use finely tuning the distance between front group of lens and rear group of lens.To optimize effect is expanded to laser beam.
After beam expanding lens described in the present embodiment, group comprises three lens combination, the central axis arrangement that three described lens combination are organized after described beam expanding lens, and equidistantly arranges.In use, by group after rotation beam expanding lens, combine before making the lens combination of target multiplying power and beam expanding lens, by group after snap lock and the relative position of rotating disk, complete the adjustment to beam expanding lens multiplying power, to expand laser beam further.
The existing beam expanding lens being applied to infrared optical system has the consecutive variations Zooming expander of little zoom rate, or the beam expanding lens of fixed multiplying power, but what sometimes need beam expanding lens to have a discontinuous change expands ratio, and there is different multiplying expand greatly than change, if design multiple beam expanding lens with different fixed multiplying power respectively to apply, because the optical material being effectively applied to medium-wave infrared and long wave infrared region is very limited, it is expensive, and some optical material is frangible, poor chemical stability, make processing and difficulty is installed, yield rate is not high, cost can be caused quite high.
The beam expanding lens that the present embodiment provides, before beam expanding lens, group shares, and can effectively reduce costs; After beam expanding lens, group has the lens combination of multiple different multiplying, and rotary type is connected on rotating disk, different expands multiplying power by rotating to switch.Solve storage storage problem when different multiplying beam expanding lens leaves unused.
Above beam expanding lens provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (6)
1. a beam expanding lens, is applied to infrared laser, it is characterized in that, to comprise before beam expanding lens group after group, rotating disk and beam expanding lens;
Before described beam expanding lens, group is fixedly connected on a connectivity port of described rotating disk, organizes another connectivity port being rotatably connected to described rotating disk after described beam expanding lens;
After described beam expanding lens, group comprises two or more, has the lens combination that difference expands multiplying power, and the central axis that described lens combination is organized after described beam expanding lens is equidistantly arranged.
2. beam expanding lens as claimed in claim 1, is characterized in that, before described beam expanding lens, group comprises lens barrel and is installed on the lens in described lens barrel.
3. beam expanding lens as claimed in claim 2, it is characterized in that, described lens barrel inwall is provided with delustring screw thread.
4. beam expanding lens as claimed in claim 1, it is characterized in that, described lens combination is adjustable relative to the axial distance organized before described beam expanding lens.
5. the beam expanding lens as described in any one of claim 1-4, is characterized in that, after described beam expanding lens, group after described beam expanding lens is fixed relative to the position of rotation of described rotating disk by buckle by group.
6. the beam expanding lens as described in any one of claim 1-4, is characterized in that, after described beam expanding lens, group comprises three lens combination, and the central axis that three described lens combination are organized after described beam expanding lens is equidistantly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553869.9U CN204903868U (en) | 2015-07-28 | 2015-07-28 | Beam expanding lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553869.9U CN204903868U (en) | 2015-07-28 | 2015-07-28 | Beam expanding lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204903868U true CN204903868U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520553869.9U Active CN204903868U (en) | 2015-07-28 | 2015-07-28 | Beam expanding lens |
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| CN (1) | CN204903868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606531A (en) * | 2017-09-21 | 2018-01-19 | 武汉优炜星科技有限公司 | A kind of parallel spot light of UV LED |
-
2015
- 2015-07-28 CN CN201520553869.9U patent/CN204903868U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606531A (en) * | 2017-09-21 | 2018-01-19 | 武汉优炜星科技有限公司 | A kind of parallel spot light of UV LED |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Laser device of partially built-in beam expansion mirror Effective date of registration: 20160407 Granted publication date: 20151223 Pledgee: Bank of Communications Ltd Jilin branch Pledgor: China Chang Chun Bo Xin Photoelectric Co., Ltd. Registration number: 2016220000002 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |