CN103389267A - Laser physical evidence exploration instrument - Google Patents
Laser physical evidence exploration instrument Download PDFInfo
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- CN103389267A CN103389267A CN2013103127279A CN201310312727A CN103389267A CN 103389267 A CN103389267 A CN 103389267A CN 2013103127279 A CN2013103127279 A CN 2013103127279A CN 201310312727 A CN201310312727 A CN 201310312727A CN 103389267 A CN103389267 A CN 103389267A
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Abstract
The invention relates to a laser physical evidence exploration instrument. The instrument comprises a shell, and a laser generation component and a laser output component which are arranged in the shell, wherein laser generated by the laser generation component is output through the laser output component; the laser output component comprises a bundling part, a concave lens, a first convex lens and a transfer device; the concave lens can be used for scattering laser output from the bundling part; laser scattered by the concave lens is output outside the shell through the first convex lens; the transfer device can be used for bundling, concentrating and outputting laser output from the first convex lens. According to the laser physical evidence exploration instrument, the laser generated by the laser generation component is scattered through the concave lens and then output from the first convex lens, and the hurt of the laser output from the first convex lens to a human body can be greatly reduced, so that the body safety of operators can be guaranteed.
Description
Technical field
The present invention relates to a kind of laser physical evidence exploration instrument, be mainly used in criminal investigation, be used for reconnoitring all kinds of material evidences in scene of a crime.
Background technology
As far back as the seventies in last century, scientist just finds that laser is the best light source of investigating micro-criminal material evidence on the spot.Facts have proved in a large number, laser can easily be found various tracers of a crime, especially finds to contain the various vestiges of Human Physiology material.Laser, with pure spectral characteristic and absolute super brightness, can be easy to find various physiologically substance vestiges, and as sweat vestige, fingerprint trace, urine vestige, blood vestige, seminal fluid vestige etc., under Ear Mucosa Treated by He Ne Laser Irradiation, various biological vestiges are high-visible., exactly because also laser is the illumination by superhigh intensity, observes some subtle vestiges, thereby when strong Ear Mucosa Treated by He Ne Laser Irradiation, during to human body, also can damage to human body the particularly injury of laser to eyes.Too strong laser energy burn biological tissue, especially to amphiblestroid burn the most common.Laser is mainly manifested in the damage chromatophore to the injury of skin, causes the capillary embolism, even causes the broken stain of blood vessel and hemorrhage.So in the criminal case crime scene investigation, require laser physical evidence exploration instrument can reconnoitre the criminal material evidence vestige, guarantee simultaneously the not injury of Stimulated Light of operating personnel, just seem particularly important.
Summary of the invention
Technical matters to be solved by this invention is to overcome the deficiencies in the prior art, provides a kind of when guaranteeing that criminal scene is reconnoitred effect, reduces laser to human injury, the light laser physical evidence exploration instrument that carries, conveniently moves.
For solving above technical matters, the present invention takes following technical scheme:
a kind of laser physical evidence exploration instrument, comprise housing, be arranged on the laser formation component in described housing, the Laser output assembly, exported through described Laser output assembly by the laser that described laser formation component generates, described Laser output assembly comprises and being arranged in described housing and can be with the boundling parts of laser boundling and gathering, described Laser output assembly also comprises the concavees lens that are arranged on described housing and are positioned at light outlet the place ahead of described boundling parts, be arranged on described housing and be positioned at first convex lens in described concavees lens the place ahead, the center of described concavees lens, the center of described the first convex lens in the same horizontal line, the laser of launching from the light outlet of described boundling parts passes through described concavees lens successively, described the first convex lens form and expand parallel laser, described Laser output assembly also comprises for described, expand the parallel laser boundling and assemble the then transmission device of output.
Preferably, in the position of the corresponding described boundling parts light outlet of described housing, be provided with interface, described concavees lens, described the first convex lens all are arranged in described interface, and described transmission device and described interface can be pegged graft separately.
Particularly, described transmission device comprises waveguide channels, be arranged on the second convex lens of described waveguide channels light entrance end, be arranged on the beam expanding lens of described waveguide channels light outlet end, when described transmission device is plugged in described interface, described the second convex lens will expand parallel laser boundling and gathering by described, then, by described waveguide channels output, by the laser of described waveguide channels output, exported through described beam expanding lens again.
Further particularly, described transmission device also comprises shell, and described the second convex lens, described waveguide channels, described beam expanding lens all are arranged in described shell.
Preferably, described waveguide channels is liquid crystal optic fiber, and its length is selected according to actual needs.
Preferably, the light outlet end of described laser formation component is connected by Transmission Fibers with the light entrance end of described boundling parts, the laser that is produced by described laser formation component after described boundling parts by boundling and gathering.
Particularly, described Transmission Fibers is silica fibre.
Due to the enforcement of technique scheme, the present invention compared with prior art has following advantage:
The laser that laser physical evidence exploration instrument of the present invention is produced by the laser formation component after concavees lens disperse again outside the first convex lens output housing, it is the parallel laser that expands after shaping by the laser of the first convex lens output, its unit area luminous energy index has eased down to the not level of harmful to human biological tissue, thereby guarantees Laser Transmission approach full safety., even improper operation causes laser to be revealed, also can not cause the danger of operating personnel's personal safety to occur.
Laser physical evidence exploration instrument of the present invention in use, plug to transmit inner laser to external output port by transmitting device and interface, mobile shell not, only the mobile device that transmits is reconnoitred scene of a crime, facilitated operating personnel's operation, when not using, will transmit device and pull away housing, convenient vanning is carried.
Laser physical evidence exploration instrument Laser Transmission approach of the present invention is safe, light to be carried, conveniently moves.
Description of drawings
Fig. 1 is the structural representation of laser physical evidence exploration instrument of the present invention;
Fig. 2 is the enlarged drawing at A place in Fig. 1;
Wherein: 1, housing; 2, laser formation component; 3, boundling parts; 4, Transmission Fibers; 5, concavees lens; 6, the first convex lens; 7, interface; 8, waveguide channels; 9, the second convex lens; 10, beam expanding lens.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated:
As shown in accompanying drawing 1 ~ 2, a kind of laser physical evidence exploration instrument comprises housing 1, is arranged on laser formation component 2, Laser output assembly in housing 1, by the laser that laser formation component 2 generates, through the Laser output assembly, is exported.
The Laser output assembly comprises and being arranged in housing 1 and can be with the boundling parts 3 of laser boundling and gathering, the laser output of laser formation component 2 is connected by Transmission Fibers 4 with the inlet end of boundling parts 3, the laser that is produced by laser formation component 2 after boundling parts 3 by boundling and gathering.In the present embodiment, Transmission Fibers 4 is silica fibre.
in the present embodiment, the Laser output assembly also comprises the concavees lens 5 that are arranged on housing 1 and are positioned at light outlet the place ahead of boundling parts 3, be arranged on housing 1 and be positioned at first convex lens 6 in concavees lens 5 the place aheads, the center of concavees lens 5, the center of the first convex lens 6 in the same horizontal line, the laser of launching from the light outlet of boundling parts 3 passes through concavees lens 5 successively, the first convex lens 6 form and expand parallel laser, 5 pairs of laser by 3 outputs of boundling parts of concavees lens disperse, the laser that is disperseed by concavees lens 5 passes through outside the first convex lens 6 output housings 1 again, by the laser of the first convex lens 6 output for expanding parallel laser.As shown in accompanying drawing 1 ~ 2, be provided with interface 7 in the position of corresponding boundling parts 3 light outlets of housing 1, concavees lens 5, the first convex lens 6 all are arranged in interface 7.
In the present embodiment, the Laser output assembly also comprises the transmission device with interface 7 separable grafting, transmitting device is used for expanding the parallel laser boundling and assembles then output, transmit device comprise transmit device comprise waveguide channels 8, be arranged on waveguide channels 8 light entrance ends the second convex lens 9, be arranged on the beam expanding lens 10 of waveguide channels 8 light outlet ends, be plugged in interface 7 when transmitting device, the second convex lens 9 will expand parallel laser boundling and gathering, then, by waveguide channels 8 outputs, by the laser of waveguide channels 8 outputs, exported through beam expanding lens 10 again.In the present embodiment, waveguide channels 8 is liquid crystal optic fiber, and its length is selected according to actual needs, and in the present embodiment, its length is roughly 2m, and therefore, the length of whole transmission device also is roughly 2m.
In the present embodiment, transmit device and also comprise shell, the second convex lens 9, waveguide channels 8, beam expanding lens 10 all arrange in the enclosure, and the shell that wraps up the second convex lens 9 and beam expanding lens 10 is metal shell, and the shell that wraps up waveguide channels 8 is plastic flexible pipe.
Above the present invention is described in detail; its purpose is to allow the personage who is familiar with this art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; and the invention is not restricted to the embodiments described; the equivalence that all Spirit Essences according to the present invention are done changes or modifies, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. laser physical evidence exploration instrument, comprise housing (1), be arranged on the laser formation component (2) in described housing (1), the Laser output assembly, exported through described Laser output assembly by the laser that described laser formation component (2) generates, described Laser output assembly comprises and being arranged in described housing (1) and can be with the boundling parts (3) of laser boundling and gathering, it is characterized in that: described Laser output assembly also comprises the concavees lens (5) that are arranged on described housing (1) upward and are positioned at light outlet the place ahead of described boundling parts (3), be arranged on described housing (1) and go up and be positioned at first convex lens (6) in described concavees lens (5) the place ahead, the center of described concavees lens (5), the center of described the first convex lens (6) in the same horizontal line, the laser of launching from the light outlet of described boundling parts (3) passes through described concavees lens (5) successively, described the first convex lens (6) form and expand parallel laser, described Laser output assembly also comprises for described, expand the parallel laser boundling and assemble the then transmission device of output.
2. laser physical evidence exploration instrument according to claim 1, it is characterized in that: the position at the corresponding described boundling parts of described housing (1) (3) light outlet is provided with interface (7), described concavees lens (5), described the first convex lens (6) all are arranged in described interface (7), and described transmission device and described interface (7) can be pegged graft separately.
3. laser physical evidence exploration instrument according to claim 2, it is characterized in that: described transmission device comprises waveguide channels (8), be arranged on second convex lens (9) of described waveguide channels (8) light entrance end, be arranged on the beam expanding lens (10) of described waveguide channels (8) light outlet end, when described transmission device is plugged in described interface (7), described the second convex lens (9) will expand parallel laser boundling and gathering by described, then by described waveguide channels (8) output, laser by described waveguide channels (8) output is exported through described beam expanding lens (10) again.
4. laser physical evidence exploration instrument according to claim 3, it is characterized in that: described transmission device also comprises shell, described the second convex lens (9), described waveguide channels (8), described beam expanding lens (10) all are arranged in described shell.
5. according to claim 3 or 4 described laser physical evidence exploration instruments is characterized in that: described waveguide channels (8) is liquid crystal optic fiber, and its length is selected according to actual needs.
6. laser physical evidence exploration instrument according to claim 1, it is characterized in that: the light outlet end of described laser formation component (2) is connected by Transmission Fibers (4) with the light entrance end of described boundling parts (3), the laser that is produced by described laser formation component (2) after described boundling parts (3) by boundling and gathering.
7. laser physical evidence exploration instrument according to claim 6 is characterized in that: described Transmission Fibers (4) is silica fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312727.9A CN103389267B (en) | 2013-07-24 | 2013-07-24 | A kind of laser physical evidence exploration instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312727.9A CN103389267B (en) | 2013-07-24 | 2013-07-24 | A kind of laser physical evidence exploration instrument |
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| CN103389267A true CN103389267A (en) | 2013-11-13 |
| CN103389267B CN103389267B (en) | 2015-09-23 |
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| CN201310312727.9A Active CN103389267B (en) | 2013-07-24 | 2013-07-24 | A kind of laser physical evidence exploration instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712917A (en) * | 2014-01-15 | 2014-04-09 | 宋志宏 | Laser physical evidence survey instrument |
| CN105823779A (en) * | 2016-05-17 | 2016-08-03 | 宋志宏 | Laser emitting device and laser material evidence exploration device |
| CN106646649A (en) * | 2016-09-28 | 2017-05-10 | 苏州晓松科技开发有限公司 | Laser material evidence investigation appearance |
| CN108012069A (en) * | 2018-01-31 | 2018-05-08 | 杭州衡利电子技术有限公司 | Physical evidence exploration camera system |
| CN115283364A (en) * | 2022-05-12 | 2022-11-04 | 成都启高科技有限公司 | Laser cleaning equipment for chip packaging mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712917A (en) * | 2014-01-15 | 2014-04-09 | 宋志宏 | Laser physical evidence survey instrument |
| CN105823779A (en) * | 2016-05-17 | 2016-08-03 | 宋志宏 | Laser emitting device and laser material evidence exploration device |
| CN105823779B (en) * | 2016-05-17 | 2018-11-02 | 杭州衡利电子技术有限公司 | Laser emission device and laser material evidence investigation device |
| CN106646649A (en) * | 2016-09-28 | 2017-05-10 | 苏州晓松科技开发有限公司 | Laser material evidence investigation appearance |
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| CN108012069B (en) * | 2018-01-31 | 2024-07-26 | 杭州衡利电子技术有限公司 | Physical evidence investigation photographing system |
| CN115283364A (en) * | 2022-05-12 | 2022-11-04 | 成都启高科技有限公司 | Laser cleaning equipment for chip packaging mold |
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| CN103389267B (en) | 2015-09-23 |
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