CN201666872U - Dual wavelength laser physical evidence showing instrument - Google Patents
Dual wavelength laser physical evidence showing instrument Download PDFInfo
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- CN201666872U CN201666872U CN2010201468995U CN201020146899U CN201666872U CN 201666872 U CN201666872 U CN 201666872U CN 2010201468995 U CN2010201468995 U CN 2010201468995U CN 201020146899 U CN201020146899 U CN 201020146899U CN 201666872 U CN201666872 U CN 201666872U
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- output terminal
- wavelength laser
- material evidence
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Abstract
The utility model discloses a dual wavelength laser physical evidence showing instrument, solving problems that the existing laser physical evidence showing instrument can only output laser with certain wavelength, the use is inconvenient, and the efficiency of finding physical evidence is low, and the showing instrument structurally comprises: a power supply device; a solid laser pumping connected with the power supply device for outputting laser in the wavelength of 1064nm; a doubler and a quadrupler connected with the solid laser pumping for outputting 532nm and 266nm laser respectively; a light source selector connected with the doubler and the quadrupler for selecting the output of 532nm or 266nm laser; a monochromatic wavelength laser follower connected with the light source selector for outputting monochromatic laser under test after collimation and beam expansion; and a physical evidence platform on which physical evidence is placed, and the monochromatic laser output by the monochromatic wavelength laser follower projects onto the physical evidence under test. Two wavelength laser output devices are designed into an apparatus controlled by a master power supply system, so the showing instrument is convenient in carrying and use, and is favorable for improving the efficiency of field survey.
Description
Technical field
The utility model relates to a kind of vestige and identifies the evidence obtaining instrument, and the material evidence that refers in particular to a kind of 266nm of having, the output of 532nm dual-wavelength laser manifests instrument.
Background technology
The evidence obtaining instrument is that departments such as public security organs, procuratorial organs and people's court, department carry out the visual plant that vestige is identified to material evidence.This equipment can successively the time be identified to writing; The true and false to certificate, coin, securities is identified; Seal, writing altered with additions and deletions identify and vestiges such as fingerprint, impression are identified, the instrument of therefore collecting evidence plays an important role to the evidence obtaining work of case such as criminal, civil.
The evidence obtaining instrument is that the difference of the material of the time order and function, light and heavy degree and the material evidence that take place according to the vestige on the tested material evidence etc. produces different optical signallings after required light source irradiation; after handling, optoelectronic device is analyzed again by computing machine; the vestige of correction or fingerprint that human eye is difficult to observe, impression etc. are presented on the display screen of imaging monitor, foundation is provided for solving a case, deciding on a verdict.
The material evidence that the 266nm Ultra-Violet Laser is exported in the evidence obtaining instrument manifests instrument and can effectively excite fingerprint fluorescent, is used for searching and gathering of latent fingerprint.
The material evidence that the 532nm green laser is exported in the evidence obtaining instrument manifests instrument and is applicable to the material evidence that directly searches the large tracts of land scope apace, searches the efficient of material evidence with raising.
In the existing evidence obtaining instrument, the material evidence with 266nm Ultra-Violet Laser manifests instrument and manifests instrument with the material evidence with 532nm green laser and be respectively independently two kinds of evidence obtaining equipment.If reconnoitre to criminal cases site and need carry two kinds of evidence obtaining equipment simultaneously, and want alternate operation to cause inconvenience, have a strong impact on and reconnoitre efficient to two instruments.
The utility model content
The purpose of this utility model is in order to overcome the problem that prior art exists, and provides a kind of and is easy to carry and easy to operate, can improve the dual-wavelength laser material evidence that dual wavelength exports that has of searching material evidence efficient and manifest instrument.
The purpose of this utility model is achieved through the following technical solutions:
A kind of dual-wavelength laser material evidence manifests instrument, and structure is: supply unit, output terminal output services voltage; Solid State Laser pumping, driving source are semiconductor laser modules, and its input end is connected with the output terminal of described supply unit, its output terminal output 1064nm laser; Varactor doubler, its input end connects the output terminal of described Solid State Laser pumping, its output terminal output 532nm laser; Quadrupler, its input end connects the output terminal of described Solid State Laser pumping, its output terminal output 266nm laser; The light source selector switch, it has two input ends, and the output terminal with described varactor doubler and quadrupler is connected respectively; Its output terminal is selected output 532nm laser or 266nm laser; Monochromatic wavelength laser follower is connected with the output terminal of described light source selector switch, the one-wavelength laser of output collimation, expansion bundle; The material evidence platform is put the platform of tested material evidence, and the one-wavelength laser of described monochromatic wavelength laser follower output is incident upon on the tested material evidence of this material evidence platform.
Described operating voltage is the 100-24AVC adjustable voltage.
Described light source converter is a selector switch, and two stiff end is respectively two input ends of light source selector switch, and its selecting side is the output terminal of light source selector switch.
Described monochromatic wavelength laser follower adopts the flexible light guide follower.
The beneficial effects of the utility model:
The material evidence of dual-wavelength laser output manifests instrument and had both had the output of 266nm Ultra-Violet Laser, also has the output of 532nm green laser, therefore can directly be applied in potential fingerprint, bloodstain, urine, saliva, sweat, searching of seminal stain and tissue, and the seal that fades, the identification of literal, do not open the reading of paper Word message in the envelope, need not to carry out just direct clear observing of any pre-service, especially on the surface of rough surface and textile, search vestige and more be widely adopted searching and gathering of fingerprint, also be applicable to the material evidence that directly searches the large tracts of land scope apace.Originally manifest devices that instrument will have the output of the single wavelength laser of two covers and be designed in the table apparatus by a master control power-supply system control, be easy to carry, easy to use, needn't frequently change instrument in the spot and use, help improving the efficient of reconnoitring the scene.
For further specifying above-mentioned purpose of the present utility model, design feature and effect, the utility model is elaborated below with reference to accompanying drawing.
Description of drawings
Fig. 1 manifests the structural representation of instrument for dual-wavelength laser material evidence of the present utility model;
Fig. 2 is light source selector switch example structure figure of the present utility model.
Embodiment
Accompanying drawing below in conjunction with embodiment is elaborated to embodiment of the present utility model.
As shown in Figure 1, to manifest the structure of instrument as follows for material evidence of the present utility model:
Supply unit 7, its output terminal output services voltage, the present embodiment operating voltage adopts 100-24AVC wide region adjustable voltage.
Solid State Laser pumping 1, driving source are semiconductor laser modules, for laser crystal provides external drive, produce 1064nm laser, and its input end is connected with the output terminal of supply unit 7 by K switch 1, its output terminal output 1064nm laser.
Varactor doubler 2, its input end connects the output terminal of Solid State Laser pumping 1, its output terminal output 532nm laser.
Quadrupler 3, its input end connects the output terminal of Solid State Laser pumping 1, its output terminal output 266nm laser.
Light source selector switch 4, it has two input ends, and the output terminal with varactor doubler 2 and quadrupler 3 is connected respectively, and promptly light source converter 4 is imported 532nm laser and 266nm laser respectively; Its output terminal is selected output, or output 532nm laser, or output 266nm laser.The selector switch K2 that present embodiment light source selector switch 4 adopts as shown in Figure 2, two stiff ends of selector switch K2 are respectively two input ends of light source selector switch 4, and its selecting side is the output terminal of light source selector switch 4.
Monochromatic wavelength laser follower 5 is connected with the output terminal of light source selector switch 4, and the laser that light source selector switch 4 is exported collimates, expands bundle, and output is through the one-wavelength laser of collimation, expansion bundle.Present embodiment adopts the flexible light guide follower, output 532nm or 266nm one-wavelength laser.
Material evidence platform 6 is put the platform of tested material evidence, on the tested material evidence that the 532nm of described monochromatic wavelength laser follower 5 outputs or 266nm one-wavelength laser are incident upon material evidence platform 6, for detecting.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.
Claims (4)
1. a dual-wavelength laser material evidence manifests instrument, it is characterized in that structure is:
Supply unit, output terminal output services voltage;
Solid State Laser pumping, driving source are semiconductor laser modules, and its input end is connected with the output terminal of described supply unit, its output terminal output 1064nm laser;
Varactor doubler, its input end connects the output terminal of described Solid State Laser pumping, its output terminal output 532nm laser;
Quadrupler, its input end connects the output terminal of described Solid State Laser pumping, its output terminal output 266nm laser;
The light source selector switch, it has two input ends, and the output terminal with described varactor doubler and quadrupler is connected respectively; Its output terminal is selected output 532nm laser or 266nm laser;
Monochromatic wavelength laser follower is connected with the output terminal of described light source selector switch, the one-wavelength laser of output collimation, expansion bundle;
The material evidence platform is put the platform of tested material evidence, and the one-wavelength laser of described monochromatic wavelength laser follower output is incident upon on the tested material evidence of this material evidence platform.
2. dual-wavelength laser material evidence as claimed in claim 1 manifests instrument, it is characterized in that:
Described operating voltage is the 100-24AVC adjustable voltage.
3. dual-wavelength laser material evidence as claimed in claim 1 manifests instrument, it is characterized in that:
Described light source converter is a selector switch, and two stiff end is respectively two input ends of light source selector switch, and its selecting side is the output terminal of light source selector switch.
4. dual-wavelength laser material evidence as claimed in claim 1 manifests instrument, it is characterized in that:
Described monochromatic wavelength laser follower adopts the flexible light guide follower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201468995U CN201666872U (en) | 2010-03-31 | 2010-03-31 | Dual wavelength laser physical evidence showing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201468995U CN201666872U (en) | 2010-03-31 | 2010-03-31 | Dual wavelength laser physical evidence showing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666872U true CN201666872U (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201468995U Expired - Lifetime CN201666872U (en) | 2010-03-31 | 2010-03-31 | Dual wavelength laser physical evidence showing instrument |
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| CN (1) | CN201666872U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175643A (en) * | 2011-03-18 | 2011-09-07 | 苏州晓松科技开发有限公司 | Laser physical evidence exploration instrument |
| CN105098599A (en) * | 2014-05-23 | 2015-11-25 | 上海市刑事科学技术研究院 | Six-wavelength on-site physical evidence laser detector |
| CN105701485A (en) * | 2016-03-29 | 2016-06-22 | 张舒维 | Double-wavelength blue-and-green intelligent laser evidence obtaining equipment |
| CN109254006A (en) * | 2018-10-30 | 2019-01-22 | 深圳市九天星科技发展有限公司 | A kind of laser physical evidence exploration instrument |
-
2010
- 2010-03-31 CN CN2010201468995U patent/CN201666872U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175643A (en) * | 2011-03-18 | 2011-09-07 | 苏州晓松科技开发有限公司 | Laser physical evidence exploration instrument |
| CN102175643B (en) * | 2011-03-18 | 2013-04-10 | 苏州晓松科技开发有限公司 | Laser physical evidence exploration instrument |
| CN105098599A (en) * | 2014-05-23 | 2015-11-25 | 上海市刑事科学技术研究院 | Six-wavelength on-site physical evidence laser detector |
| CN105098599B (en) * | 2014-05-23 | 2018-12-07 | 上海市刑事科学技术研究院 | Six wavelength evidence at the scene laser detectors |
| CN105701485A (en) * | 2016-03-29 | 2016-06-22 | 张舒维 | Double-wavelength blue-and-green intelligent laser evidence obtaining equipment |
| CN109254006A (en) * | 2018-10-30 | 2019-01-22 | 深圳市九天星科技发展有限公司 | A kind of laser physical evidence exploration instrument |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101208 |
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| CX01 | Expiry of patent term |