CN204613084U - A kind of laser physical evidence exploration instrument - Google Patents
A kind of laser physical evidence exploration instrument Download PDFInfo
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- CN204613084U CN204613084U CN201520318318.4U CN201520318318U CN204613084U CN 204613084 U CN204613084 U CN 204613084U CN 201520318318 U CN201520318318 U CN 201520318318U CN 204613084 U CN204613084 U CN 204613084U
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Abstract
The utility model provides a kind of laser physical evidence exploration instrument, can reconnoitre or ensure in checkout procedure the safety of material evidence at the scene.Described laser physical evidence exploration instrument, comprise the Laser emission window that housing is reconnoitred object for Emission Lasers bundle with the front end being arranged on described housing, wherein, described laser physical evidence exploration instrument also comprises: infrared measurement of temperature distance measuring sensor, being arranged at the front end of described housing abreast with described Laser emission window, measuring itself and the distance of described object and/or the temperature of described object for launching infrared beam; And Control Component, be connected with described infrared measurement of temperature distance measuring sensor, for carrying out corresponding control operation according to described infrared measurement of temperature distance measuring sensor to the distance of described object and/or the temperature of described object.
Description
Technical field
The utility model relates to exploration technique field, particularly relates to a kind of laser physical evidence exploration instrument.
Background technology
Physical evidence exploration instrument is the visual plant of public security organs, procuratorial organs and people's court, the site inspection of Si Deng department, discovery material evidence vestige.Laser physical evidence exploration instrument is the narrow spectral laser bundle of high energy degree utilizing laser instrument to launch special wave band, irradiate object, and then utilize this laser peculiar spectrum to excite object to produce fluorescence, thus can find by these fluorescence the material evidence that is hidden in various background.
In actual applications, the method improving laser energy is often adopted to improve the ability finding material evidence.The laser power of conventional laser physical evidence exploration instrument often can more than 10W at present, and so large laser power, if dealt with improperly, is enough to light paper in certain distance.Site inspection material evidence often has uniqueness, will have a strong impact on solving criminal cases once destroyed.The high power laser that laser physical evidence exploration instrument is launched, if undue in measured target thing, then can heat object, produce high temperature, thus destruction object, especially DNA (Deoxyribonucleic acid is comprised, DNA (deoxyribonucleic acid)) material evidence, this problem causes laser physical evidence exploration instrument in use to exist destroying the possibility of material evidence.
Traditional laser physical evidence exploration instrument is not wanted too near points for attention such as material evidence, not long-time irradiation material evidences in indicating using method in the description, using, and avoids laser to the destruction of material evidence.But operator cannot ensure that this use limits completely in actual use, and this method is unreliable.
Utility model content
The utility model provides a kind of laser physical evidence exploration instrument, can reconnoitre or ensure in checkout procedure the safety of material evidence at the scene.
A kind of laser physical evidence exploration instrument that the utility model provides, comprise the Laser emission window that housing is reconnoitred object for Emission Lasers bundle with the front end being arranged on described housing, wherein, described laser physical evidence exploration instrument also comprises:
Infrared measurement of temperature distance measuring sensor, is arranged at the front end of described housing abreast with described Laser emission window, measures itself and the distance of described object and/or the temperature of described object for launching infrared beam; And
Control Component, is connected with described infrared measurement of temperature distance measuring sensor, for carrying out corresponding control operation according to described infrared measurement of temperature distance measuring sensor to the distance of described object and/or the temperature of described object.
Alternatively, described Control Component also comprises object status indicator lamp, and
Described Control Component is used for, and when the temperature that the distance of described infrared measurement of temperature distance measuring sensor and described object is less than distance threshold and/or described object exceedes temperature threshold, controls described object status indicator lamp luminous prompting operator.
Alternatively, described Control Component also comprises object status alert device, and
Described Control Component is used for, and when the temperature that the distance of described infrared measurement of temperature distance measuring sensor and described object is less than distance threshold and/or described object exceedes temperature threshold, controls described object status alert device and to sound the alarm prompting operator.
Alternatively, described Control Component is used for, when the temperature that the distance of described infrared measurement of temperature distance measuring sensor and described object is less than distance threshold and/or described object exceedes temperature threshold, reduce the power of the laser beam of launching from described Laser emission window or control to stop Emission Lasers bundle.
Alternatively, described laser physical evidence exploration instrument also comprises:
Infrared light emission button, is arranged at the rear end of described housing, launches infrared beam for controlling described infrared measurement of temperature distance measuring sensor to described object.
Alternatively, described laser physical evidence exploration instrument also comprises:
Circle of confusion, is arranged at the lower end of described Laser emission window, adaptive with described Laser emission window.
Alternatively, described laser physical evidence exploration instrument also comprises:
Erecting frame, is arranged at the upper end of described housing, observes optical filter or camera for installing.
In the utility model, when laser physical evidence exploration instrument works, by Laser emission window Emission Lasers bundle, object is reconnoitred, infrared measurement of temperature distance measuring sensor launches infrared beam simultaneously, because infrared measurement of temperature distance measuring sensor and Laser emission window are arranged on the front end of housing abreast, thus infrared beam is parallel with laser beam and approximate to overlap.While on laser beam irradiation to object (i.e. material evidence) to object heating, infrared beam also can be radiated on this object simultaneously, thus infrared measurement of temperature distance measuring sensor can measure the temperature of the Distance geometry object of itself and object by infrared beam.Further, corresponding control operation can be carried out to the Control Component that infrared measurement of temperature distance measuring sensor connects according to the infrared measurement of temperature distance measuring sensor measured and the distance of object and/or the temperature of object.As; safe distance threshold and temperature threshold can be set; when the temperature that the distance of infrared measurement of temperature distance measuring sensor and object is less than distance threshold and/or object exceedes temperature threshold; Control Component can carry out the control operation such as light or alarm; timely prompting operator; thus can ensure that laser physical evidence exploration instrument in use can protect material evidence, can not cause destroying material evidence because of improper use, realize the object of the safety ensureing material evidence.
Particularly, Control Component also comprises object status indicator lamp, when the temperature that the distance of infrared measurement of temperature distance measuring sensor and object is less than distance threshold and/or object exceedes temperature threshold, and control objectives thing status indicator lamp luminous prompting operator.In addition, Control Component also comprises object status alert device, and when the temperature that the distance of infrared measurement of temperature distance measuring sensor and object is less than distance threshold and/or object exceedes temperature threshold, control objectives thing status alert device sounds the alarm prompting operator.Moreover when the temperature that the distance of infrared measurement of temperature distance measuring sensor and object is less than distance threshold and/or object exceedes temperature threshold, Control Component reduces the power of the laser beam of launching from Laser emission window or controls to stop Emission Lasers bundle.
According to hereafter by reference to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present utility model with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the Facad structure schematic diagram of the laser physical evidence exploration instrument according to the utility model embodiment;
Fig. 2 is the side structure schematic diagram of the laser physical evidence exploration instrument according to the utility model embodiment;
Fig. 3 is the structural representation according to the infrared temperature-test sensor of the utility model embodiment and the operating circuit of object status indicator lamp;
Fig. 4 is the structural representation according to the infrared distance sensor of the utility model embodiment and the operating circuit of object status indicator lamp;
In figure: laser physical evidence exploration instrument 100, housing 110, Laser emission window 120, infrared measurement of temperature distance measuring sensor 130, Control Component 140, infrared light emission button 150, circle of confusion 160, erecting frame 170, infrared temperature-test sensor socket 310, potentiometer 320, object status indicator lamp socket 330, infrared distance sensor socket 410, potentiometer 420 and object status indicator lamp socket 430.
Embodiment
Fig. 1 is the Facad structure schematic diagram of the laser physical evidence exploration instrument according to the utility model embodiment.Fig. 2 is the side structure schematic diagram of the laser physical evidence exploration instrument according to the utility model embodiment.As depicted in figs. 1 and 2, this laser physical evidence exploration instrument 100 at least can comprise: housing 110, the Laser emission window 120 that the front end being arranged on housing 110 is reconnoitred object for Emission Lasers bundle, the infrared measurement of temperature distance measuring sensor 130 of the front end of housing 110 is arranged at abreast, the Control Component 140 be connected with infrared measurement of temperature distance measuring sensor 130 with Laser emission window 120.
Wherein, infrared measurement of temperature distance measuring sensor 130 measures itself and the distance of object and/or the temperature of object for launching infrared beam, and Control Component 140 is for carrying out corresponding control operation according to infrared measurement of temperature distance measuring sensor to the distance of object and/or the temperature of object.
In the utility model, when laser physical evidence exploration instrument 100 works, by Laser emission window 120 Emission Lasers bundle, object is reconnoitred, infrared measurement of temperature distance measuring sensor 130 launches infrared beam simultaneously, because infrared measurement of temperature distance measuring sensor 130 and Laser emission window 120 are arranged on the front end of housing 110 abreast, thus infrared beam is parallel with laser beam and be similar to and overlap.While on laser beam irradiation to object (i.e. material evidence) to object heating, infrared beam also can be radiated on this object simultaneously, thus infrared measurement of temperature distance measuring sensor 130 can measure the temperature of the Distance geometry object of itself and object by infrared beam.Further, the Control Component 140 connected to infrared measurement of temperature distance measuring sensor 130 can carry out corresponding control operation according to the infrared measurement of temperature distance measuring sensor measured and the distance of object and/or the temperature of object.As; safe distance threshold and temperature threshold can be set; when the temperature that infrared measurement of temperature distance measuring sensor 130 and the distance of object are less than distance threshold and/or object exceedes temperature threshold; Control Component 140 can carry out the control operation such as light or alarm; timely prompting operator; thus can ensure that laser physical evidence exploration instrument 100 in use can protect material evidence, can not cause destroying material evidence because of improper use, realize the object of the safety ensureing material evidence.
In the utility model, infrared measurement of temperature distance measuring sensor 130 measures itself and the distance of object and/or the temperature of object by launching infrared beam.Particularly, infrared measurement of temperature distance measuring sensor 130 comprises infrared distance sensor and infrared temperature-test sensor, wherein, the principle of work of infrared distance sensor is: have a pair infrared signal launching and receiving diode in infrared distance sensor, infrared distance sensor is utilized to launch a branch of infrared light, the process of a reflection is formed after being irradiated to object, reflex to Received signal strength after sensor, then CCD (Charge Coupled Device is utilized, charge-coupled image sensor) image procossing receives the data of mistiming of launching and receiving, the distance of object is calculated after signal processor processes.In addition, infrared temperature-test sensor is the thermal effect utilizing infrared radiation, measures absorbed infrared radiation, the temperature of measuring radiation infrared light object indirectly by thermoelectric effect, pyroelectric effect and thermistor etc.
In a preferred embodiment of the present utility model; Control Component 140 can also comprise object status indicator lamp; Control Component 140 is for when the temperature that infrared measurement of temperature distance measuring sensor 130 and the distance of object are less than distance threshold and/or object exceedes temperature threshold; control objectives thing status indicator lamp luminous prompting operator; thus operator can make adjustment in time; as the emissive power etc. by laser physical evidence exploration instrument 100 wide thing or adjusting laser beam; thus the safety of material evidence can be protected, can not cause destroying material evidence because of improper use.In actual applications, if when the temperature that the infrared measurement of temperature distance measuring sensor 130 measured and the distance of object are greater than the object of distance threshold or measurement is less than temperature threshold, think that laser physical evidence exploration instrument 100 is working properly, object status indicator lamp instruction green.If when the infrared measurement of temperature distance measuring sensor 130 measured is less than distance threshold with the distance of object, think that laser physical evidence exploration instrument 100 is undue in object, now can send ruddiness prompting operator by control objectives thing status indicator lamp.If when the temperature of the object measured exceedes temperature threshold, think that the power of the illuminated overlong time of object or laser beam is comparatively large, now also can send ruddiness prompting operator by control objectives thing status indicator lamp.
In another preferred embodiment of the present utility model, Control Component 140 can also comprise object status alert device, Control Component 140 is for being less than distance threshold when infrared measurement of temperature distance measuring sensor 130 and the distance of object, and/or the temperature of object is when exceeding temperature threshold, control objectives thing status alert device sounds the alarm and points out operator, thus operator can make adjustment in time, as the emissive power etc. by laser physical evidence exploration instrument 100 wide thing or adjusting laser beam, thus the safety of material evidence can be protected, can not cause destroying material evidence because of improper use.In actual applications, if when the infrared measurement of temperature distance measuring sensor 130 measured is less than distance threshold with the distance of object, think that laser physical evidence exploration instrument 100 is undue in object, now can to sound the alarm prompting operator by control objectives thing status alert device.If when the temperature of object measured exceedes temperature threshold, think that the power of the illuminated overlong time of object or laser beam is comparatively large, now also can to sound the alarm prompting operator by control objectives thing status alert device.
In another preferred embodiment of the present utility model; Control Component 140 can also be used for when the temperature that infrared measurement of temperature distance measuring sensor 130 and the distance of object are less than distance threshold and/or object exceedes temperature threshold; reduce the power of the laser beam of launching from Laser emission window 120 or control to stop Emission Lasers bundle; thus can ensure that laser physical evidence exploration instrument 100 in use can protect material evidence; can not cause destroying material evidence because of improper use, realize the object of the safety ensureing material evidence.
In the utility model, the distance threshold or temperature threshold that can ensure measured target thing safety can be set by the internal circuit of laser physical evidence exploration instrument 100.
Fig. 3 is the structural representation according to the infrared temperature-test sensor of the utility model embodiment and the operating circuit of object status indicator lamp.In Fig. 3, infrared temperature-test sensor socket 310, potentiometer 320 and object status indicator lamp socket 330, when the temperature of the object that infrared temperature-test sensor is measured exceedes temperature threshold, in infrared temperature-test sensor socket 310, pin 1 is communicated with pin 2, potentiometer 320 short circuit, in object status indicator lamp socket 330, pin 2 is low level, and the object status indicator lamp be connected with object status indicator lamp socket 330 indicates red light.When the temperature of the object that infrared temperature-test sensor is measured is less than temperature threshold, in infrared temperature-test sensor socket 310, pin 1 and pin 2 disconnect, potentiometer 320 open circuit, in object status indicator lamp socket 330, pin 2 is high level, and the object status indicator lamp be connected with object status indicator lamp socket 330 indicates green light.
Fig. 4 is the structural representation according to the infrared distance sensor of the utility model embodiment and the operating circuit of object status indicator lamp.In Fig. 4, infrared distance sensor socket 410, potentiometer 420 and object status indicator lamp socket 430, the distance size of the object that the intensity of light of the object status indicator lamp be connected with object status indicator lamp socket 430 can be measured along with infrared distance sensor changes, distance is nearer, and intensity of light is stronger.
In another preferred embodiment of the present utility model, as shown in Figure 2, laser physical evidence exploration instrument 100 can also comprise infrared light emission button 150, is arranged at the rear end of housing 110, launches infrared beam for controlling infrared measurement of temperature distance measuring sensor 130 to object.In addition, laser physical evidence exploration instrument 100 can also comprise circle of confusion 160, is arranged at the lower end of Laser emission window 120, adaptive with Laser emission window 120, for hot spot is carried out astigmatism.If the cross section of Laser emission window 120 is square, then the cross section of circle of confusion 160 is also square; If the cross section of Laser emission window 120 is circular, then the cross section of circle of confusion 160 is also circular.In addition, laser physical evidence exploration instrument 100 can also comprise erecting frame 170, is arranged at the upper end of housing 110, observes optical filter or camera for installing.Here, adopt optical filter to observe, the injury to operator's eyes can be prevented.Adopt camera can to take pictures or make a video recording the object that laser physical evidence exploration instrument 100 irradiates, in order to follow-up use.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present utility model is illustrate and described herein detailed, but, when not departing from the utility model spirit and scope, still can directly determine or derive other modification many or amendment of meeting the utility model principle according to content disclosed in the utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or amendments.
Claims (7)
1. a laser physical evidence exploration instrument, comprise the Laser emission window that housing is reconnoitred object for Emission Lasers bundle with the front end being arranged on described housing, it is characterized in that, described laser physical evidence exploration instrument also comprises:
Infrared measurement of temperature distance measuring sensor, is arranged at the front end of described housing abreast with described Laser emission window, measures itself and the distance of described object and/or the temperature of described object for launching infrared beam; And
Control Component, is connected with described infrared measurement of temperature distance measuring sensor, for carrying out corresponding control operation according to described infrared measurement of temperature distance measuring sensor to the distance of described object and/or the temperature of described object.
2. laser physical evidence exploration instrument according to claim 1, is characterized in that,
Described Control Component also comprises object status indicator lamp, and
Described Control Component is used for, and when the temperature that the distance of described infrared measurement of temperature distance measuring sensor and described object is less than distance threshold and/or described object exceedes temperature threshold, controls described object status indicator lamp luminous prompting operator.
3. laser physical evidence exploration instrument according to claim 1, is characterized in that,
Described Control Component also comprises object status alert device, and
Described Control Component is used for, and when the temperature that the distance of described infrared measurement of temperature distance measuring sensor and described object is less than distance threshold and/or described object exceedes temperature threshold, controls described object status alert device and to sound the alarm prompting operator.
4. the laser physical evidence exploration instrument according to any one of claim 1-3, is characterized in that,
Described Control Component is used for, when the temperature that the distance of described infrared measurement of temperature distance measuring sensor and described object is less than distance threshold and/or described object exceedes temperature threshold, reduce the power of the laser beam of launching from described Laser emission window or control to stop Emission Lasers bundle.
5. laser physical evidence exploration instrument according to claim 1, is characterized in that, also comprises:
Infrared light emission button, is arranged at the rear end of described housing, launches infrared beam for controlling described infrared measurement of temperature distance measuring sensor to described object.
6. laser physical evidence exploration instrument according to claim 1, is characterized in that, also comprises:
Circle of confusion, is arranged at the lower end of described Laser emission window, adaptive with described Laser emission window.
7. laser physical evidence exploration instrument according to claim 1, is characterized in that, also comprises:
Erecting frame, is arranged at the upper end of described housing, observes optical filter or camera for installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520318318.4U CN204613084U (en) | 2015-05-15 | 2015-05-15 | A kind of laser physical evidence exploration instrument |
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| CN201520318318.4U CN204613084U (en) | 2015-05-15 | 2015-05-15 | A kind of laser physical evidence exploration instrument |
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| CN204613084U true CN204613084U (en) | 2015-09-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107995949A (en) * | 2017-11-07 | 2018-05-04 | 深圳达闼科技控股有限公司 | Transmission power control method, apparatus, storage medium and electronic equipment |
| CN108012115A (en) * | 2017-11-24 | 2018-05-08 | 广州腾德同普光电科技有限公司 | Visualize portable laser device |
| 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 |
-
2015
- 2015-05-15 CN CN201520318318.4U patent/CN204613084U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107995949A (en) * | 2017-11-07 | 2018-05-04 | 深圳达闼科技控股有限公司 | Transmission power control method, apparatus, storage medium and electronic equipment |
| WO2019090490A1 (en) * | 2017-11-07 | 2019-05-16 | 深圳达闼科技控股有限公司 | Transmission power control method and apparatus, storage medium, and electronic device |
| CN108012115A (en) * | 2017-11-24 | 2018-05-08 | 广州腾德同普光电科技有限公司 | Visualize portable laser device |
| CN108012115B (en) * | 2017-11-24 | 2019-12-24 | 广州腾德同普光电科技有限公司 | Visual portable laser device |
| 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 |
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