CN204005292U - A kind of laser flashlight - Google Patents
A kind of laser flashlight Download PDFInfo
- Publication number
- CN204005292U CN204005292U CN201420372151.5U CN201420372151U CN204005292U CN 204005292 U CN204005292 U CN 204005292U CN 201420372151 U CN201420372151 U CN 201420372151U CN 204005292 U CN204005292 U CN 204005292U
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- laser
- lens
- cylindrical shell
- light source
- condenser lens
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Abstract
The utility model discloses a kind of laser flashlight, comprise cylindrical shell, LASER Light Source, in described cylindrical shell, be provided with successively from inside to outside the first condenser lens, the equal optical lens group of shaping, the second condenser lens and focusing lens, described LASER Light Source is located at the inner side of the first described condenser lens, the end of described cylindrical shell is provided with the lamp holder for focusing, and described focusing lens is fixed on lamp holder.The utility model aims to provide the laser flashlight that a kind of outgoing is even, irradiated area is large, irradiated area is adjustable.
Description
Technical field
The utility model relates to a kind of special lighting field, particularly a kind of laser flashlight.
Background technology
Laser is as a kind of special source, is widely used in military affairs, space flight, the field such as civilian, and laser has a lot of characteristics: first, laser is monochromatic, or perhaps single-frequency.Have some laser instruments can produce the laser of different frequency, but these laser are isolation mutually, when use, also separate simultaneously.Secondly, laser is coherent light.The feature of coherent light is that its all light wave is all synchronous, and whole Shu Guang just looks like one " wave train ".Again, laser is high concentration, that is to say it to walk a very long segment distance just there will be disperse or convergence phenomenon.The purposes of the laser of different wave length different frequency is studied staff development utilization gradually, and wherein the laser of 400～1100nm can manifesting for non-visible material.
Generally, the laser that LASER Light Source produces is banded, and Semiconductor Laser Irradiation is generally a bar shaped Irregular facula to object, cannot realize for the object to specific area and irradiating uniformly.
Utility model content
The purpose of this utility model is to provide the laser flashlight that a kind of outgoing is even, irradiated area is large, irradiated area is adjustable.
The technical scheme that the utility model provides is: a kind of laser flashlight, comprise cylindrical shell, LASER Light Source, in described cylindrical shell, be provided with successively from inside to outside the first condenser lens, the equal optical lens group of shaping, the second condenser lens and focusing lens, described LASER Light Source is located at the inner side of the first described condenser lens, the end of described cylindrical shell is provided with the lamp holder for focusing, and described focusing lens is fixed on lamp holder.
In above-mentioned laser flashlight, described the first condenser lens and focusing lens are convex lens.
In above-mentioned laser flashlight, the second described condenser lens is aspheric surface convex lens or convex lens.
In above-mentioned laser flashlight, the even optical lens group of described shaping is made up of two even optical lens or the single even optical lens of parallel arranged.
In above-mentioned laser flashlight, the end of described cylindrical shell is provided with internal thread, and described lamp holder is provided with the external screw thread mating with described internal thread.
In above-mentioned laser flashlight, described cylindrical shell comprises upper wide part and lower narrow portion, the described equal optical lens group of LASER Light Source, the first condenser lens and shaping is arranged in described lower narrow portion, and the second described condenser lens and focusing lens are arranged in described upper wide part.
In above-mentioned laser flashlight, also comprise the power supply, switch and the control circuit board that are arranged on described inner barrel, described LASER Light Source is connected with described power supply by control circuit board, and described switch is connected with control circuit board.
In above-mentioned laser flashlight, in described cylindrical shell, be provided with reflective membrane.
In above-mentioned laser flashlight, the frequency range of the laser that described LASER Light Source produces is 400～1100nm.
The utility model adopts multiple lens to reach the shaping to laser, even light and amplification, more than making the hot spot of final emergent light diameter can reaching 10cm in the distance of 20cm.First make Laser Focusing on the even optical lens of the even optical lens group of shaping by the first condenser lens, after the even light shaping of even optical lens, laser becomes ellipse from band shape, distribution of light is even, again focus on through the second condenser lens, oval-shaped laser becomes circle, laser facula circular after focusing lens focusing amplifies, and in the distance of 20cm, the diameter of hot spot becomes at least 10cm.
Further, inner barrel is provided with reflective membrane, has avoided the energy loss of laser.
Brief description of the drawings
Fig. 1 is the cutaway view of specific embodiment of the utility model 1.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical solution of the utility model is described in further detail, but does not form any restriction of the present utility model.
Embodiment 1
As shown in Figure 1, a kind of laser flashlight, comprises cylindrical shell 1, LASER Light Source 2, in described cylindrical shell 1, is provided with reflective membrane, and the frequency range of the laser that described LASER Light Source 2 produces is 400～1100nm, and preferably its laser frequency is chosen as 445nm or 450nm, in described cylindrical shell 1, be provided with successively from inside to outside the first condenser lens 11, the equal optical lens group 12 of shaping, the second condenser lens 13 and focusing lens 14, described LASER Light Source 2 is located at the inner side of the first described condenser lens 11, the end of described cylindrical shell 1 is provided with the lamp holder 15 for focusing, described focusing lens 14 is fixed on lamp holder 15, wherein, the first described condenser lens 11, the second condenser lens 13 and focusing lens 14 are convex lens, the even optical lens group 12 of described shaping is made up of two even optical lens 121 or the single lens of parallel arranged, preferably, the second described condenser lens 13 is aspheric surface convex lens, for the oval-shaped laser of equal optical lens group 12 outgoing of shaping being focused on and further shaping, make it to become the laser with circular light spot.Even optical lens 121 can be selected the lens of the various functions with even light shaping in the present embodiment, as the gradient index lens array being formed by gradient-index lens in patent application CN200820029242.3, the even optical lens of disclosed one in Chinese patent CN203101668U, comprise and there is the exit facet that the plane of incidence that the reception laser that is oppositely arranged injects and this laser penetrate, the plane of incidence is semi-cylinder curved surface, and exit facet is aspheric surface; And this aspheric bus two ends distance is greater than the two ends distance of described semi-cylinder surface bus, all incides on described exit facet with the laser of guaranteeing to inject through the plane of incidence.Because the even optical lens kind on market is more, therefore do not do too much restriction at this.
In the present embodiment, the realization of the focusing function of described lamp holder 15 can be chosen as various ways, such as between lamp holder 15 and cylindrical shell 1, chute and slide block being set, lamp holder 15 moves forward and backward with the form of sliding, also can move forward and backward in rotary manner by the form of screw thread, the mode moving forward and backward with the form of screw thread has multiple, be preferably in the present embodiment in the end of described cylindrical shell 1 internal thread is set, the external screw thread mating with described internal thread is set on described lamp holder 15, realize moving forward and backward of lamp holder 1 by rotation, realize the big or small control of the hot spot to shoot laser to regulate the position of focusing lens.
In the present embodiment, because the area of the second condenser lens 13 and focusing lens 14 is much larger than the first condenser lens 11 and the equal optical lens group 12 of shaping, therefore cylindrical shell 1 comprises upper wide part 16 and lower narrow portion 17, described LASER Light Source 2, the first condenser lens 11 and the equal optical lens group 12 of shaping is arranged in described lower narrow portion 17, and the second described condenser lens 13 and focusing lens 14 are arranged in described upper wide part 16.
In the present embodiment, also comprise the power supply 19, switch 18 and the control circuit board 20 that are arranged on described cylindrical shell 1 inside, described LASER Light Source 2 is connected with described power supply 19 by control circuit board 20, and described switch 18 is connected with control circuit board 20.Power supply 19 can adopt disposable battery or rechargeable battery, does not do too much restriction at this.In the present embodiment, described LASER Light Source 2 can be chosen as solid state laser, gas laser, liquid laser, semiconductor laser, free electron laser, does not do too much restriction at this.
In actual applications, open switch 18, LASER Light Source 2 energisings produce banded laser, make Laser Focusing on the even optical lens of the even optical lens group 12 of shaping by the first condenser lens 11, after the even light shaping of even optical lens 121, laser becomes ellipse from band shape, distribution of light is even, the second condenser lens 13 is aspheric surface simultaneously, again focus on through the second condenser lens 13, oval-shaped laser becomes circle, after focusing lens 14 focusing, circular laser facula amplifies, and in the distance of 20cm, the diameter of hot spot becomes at least 10cm.
This laser flashlight is applicable to police field, is particularly applicable to the demonstration of palm sweat stain, after palm is pressed on paper, on paper, just leave the sweat stain of palm, by paper, fast by infrared heating, then irradiating with this laser flashlight can be profiling, convenient and swift, be easy to carry about with one.
Above-described is only preferred embodiment of the present utility model, all any amendments of doing within the scope of spirit of the present utility model and principle, is equal to and replaces and improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a laser flashlight, comprise cylindrical shell (1), LASER Light Source (2), it is characterized in that, in described cylindrical shell (1), be provided with successively from inside to outside the first condenser lens (11), the equal optical lens group of shaping (12), the second condenser lens (13) and focusing lens (14), described LASER Light Source (2) is located at the inner side of described the first condenser lens (11), the end of described cylindrical shell (1) is provided with the lamp holder (15) for focusing, and described focusing lens (14) is fixed on lamp holder (15).
2. laser flashlight according to claim 1, is characterized in that, described the first condenser lens (11) and focusing lens (14) are convex lens.
3. laser flashlight according to claim 2, is characterized in that, described the second condenser lens (13) is aspheric surface convex lens or convex lens.
4. laser flashlight according to claim 1, is characterized in that, the even optical lens group of described shaping (12) is made up of two even optical lens (121) or the single lens of parallel arranged.
5. laser flashlight according to claim 1, is characterized in that, the end of described cylindrical shell (1) is provided with internal thread, and described lamp holder (15) is provided with the external screw thread mating with described internal thread.
6. laser flashlight according to claim 1, it is characterized in that, described cylindrical shell (1) comprises upper wide part (16) and lower narrow portion (17), described LASER Light Source (2) is that single LASER Light Source or LASER Light Source group, the first condenser lens (11) and the equal optical lens group of shaping (12) are arranged in described lower narrow portion (17), and described the second condenser lens (13) and focusing lens (14) are arranged in described upper wide part (16).
7. laser flashlight according to claim 1, it is characterized in that, also comprise and be arranged on described cylindrical shell (1) inner power supply (19), switch (18) and control circuit board (20), described LASER Light Source (2) is connected with described power supply (19) by control circuit board (20), and described switch (18) is connected with control circuit board (20).
8. laser flashlight according to claim 1, is characterized in that, in described cylindrical shell (1), is provided with reflective membrane.
9. according to the arbitrary described laser flashlight of claim 1～8, it is characterized in that, the frequency range of the laser that described LASER Light Source (2) produces is 400～1100nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372151.5U CN204005292U (en) | 2014-07-07 | 2014-07-07 | A kind of laser flashlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372151.5U CN204005292U (en) | 2014-07-07 | 2014-07-07 | A kind of laser flashlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204005292U true CN204005292U (en) | 2014-12-10 |
Family
ID=52045293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420372151.5U Expired - Fee Related CN204005292U (en) | 2014-07-07 | 2014-07-07 | A kind of laser flashlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204005292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870134A (en) * | 2018-06-27 | 2018-11-23 | 潍坊华光光电子有限公司 | A kind of laser glare light electric torch of high brightness and preparation method thereof |
| CN109785711A (en) * | 2018-12-31 | 2019-05-21 | 中山市永乐电子有限公司 | A kind of adjustable spot laser pen |
-
2014
- 2014-07-07 CN CN201420372151.5U patent/CN204005292U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870134A (en) * | 2018-06-27 | 2018-11-23 | 潍坊华光光电子有限公司 | A kind of laser glare light electric torch of high brightness and preparation method thereof |
| CN109785711A (en) * | 2018-12-31 | 2019-05-21 | 中山市永乐电子有限公司 | A kind of adjustable spot laser pen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150707 |
|
| EXPY | Termination of patent right or utility model |