CN201133879Y - Footmark collection instrument - Google Patents
Footmark collection instrument Download PDFInfo
- Publication number
- CN201133879Y CN201133879Y CNU2007200137809U CN200720013780U CN201133879Y CN 201133879 Y CN201133879 Y CN 201133879Y CN U2007200137809 U CNU2007200137809 U CN U2007200137809U CN 200720013780 U CN200720013780 U CN 200720013780U CN 201133879 Y CN201133879 Y CN 201133879Y
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- Prior art keywords
- footprint
- platform
- lens
- planar lens
- trampled
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- Expired - Lifetime
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Abstract
The utility model discloses a footprint-collecting instrument, which includes a tank body (9), a scattered light source (1), a trampled platform and a photographing device (3); the trampled platform is composed of a plane lens (4) and a transparent adhesive film (5) tightly adhibited on the upper surface of the plane lens (4), and a reflective film (6) is laid on the upper side of the trampled platform; a plane mirror (7) is slantingly arranged under the trampled platform, and the set angles of the lens and plane mirror (7) of the photographing device (3) and the set angles of the plane mirror and the plane lens are complementary. An image formed by the footprint-collecting instrument is not affected by the background light of the trampled side and the optical properties of a sole material, so imaging is clear, and the background is clean. Since the footprint-collecting instrument applies the elastic transparent adhesive film for imaging, the light and shade charasteristics of the image can reflect the pressure characteristics of a footprint, thus providing pressure information for technicians conducting an analysis on a footprint. Moreover, because the plane mirror is utilized to reflect images, the object distance of the photographing device is increased, and the volume of the footprint-collecting instrument is effectively reduced.
Description
Technical field:
The utility model relates to a kind of equipment of gathering footprint image.
Background technology:
As everyone knows, footprint is an important clue of public security investigation.The method of in the past gathering footprint has on suspect's sole coats printing ink, steps on to be imprinted on the blank sheet of paper, is entered into computing machine by scanning then.This kind acquisition mode, complex operation, and also it is bigger influenced by human factor, smears unequal situation as printing ink, will directly influence the accuracy of qualification result.Also have a kind of footprint harvester at present, its main body is the prism of isosceles, is respectively arranged with light source and filming apparatus in the prism two symmetrical sides of isosceles, and the suspect tramples on the 3rd faceted pebble, and then the footprint direct imaging is in filming apparatus.Though this device is easy to use, the image background that collects is impure, and footwear seals causes easily to mix and disturb when colored, is unfavorable for investigation.
Summary of the invention:
The utility model provides a kind of imaging clear, the track acquisition instrument that background is pure at the above-mentioned deficiency of prior art.
Technical solution of the present utility model is: a kind of track acquisition instrument, comprise casing, be provided with scattering light source in it, trample platform and filming apparatus, describedly trample the transparent adhesive film that platform fits tightly by planar lens and with the planar lens upper surface and constitute, trample platform above be equipped with reflective membrane; Trample platform below be tiltedly installed with level crossing, the camera lens of filming apparatus and level crossing angle and level crossing and planar lens be set angle complementary angle each other is set.
Described transparent adhesive film is the refractive index colloid identical or close with the refractive index of planar lens material, and its thickness is preferably less than 1 millimeter.
Described scattering light source is preferably led light source, is arranged on the side of planar lens.
The thickness of described planar lens is 10---20 millimeters, being preferably 12---18 millimeters.
Image-forming principle of the present utility model is for when trampling platform and bear pressure, and the reflective membrane at footmark position and the transparent adhesive film formation reflective surface of combining closely is propagated formation high light image in the plane reflection mode at this position glazed thread; And the light at the reflective membrane position that other are not stressed is propagated in the diffuse reflection mode in lens inside, does not form image or image is darker, then promptly forms the image of white footmark, black background this moment, finishes image through flat mirror reflects to filming apparatus and catches.The image that this device forms is not trampled face background light to be influenced, and is not subjected to the optical property influence of vola (sole, sole, the stocking sole) material, and imaging is clear, background is pure; Because device adopts the rubber-like transparent adhesive film to come imaging, become the gradation feature can reflect the footprint pressure characteristic, can provide pressure information to the analysis of footprint for the technician.And utilize the flat mirror reflects image can increase the filming apparatus object distance, effectively reduce device volume.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Below in conjunction with description of drawings embodiment of the present utility model.
As shown in Figure 1, a kind of track acquisition instrument, comprise casing 9, be provided with scattering light source 1 in it, trample platform and filming apparatus 3, to trample platform be 15 millimeters planar lens 4 by thickness and constitute with transparent adhesive film 5 that planar lens 4 upper surfaces fit tightly, planar lens places casing top, and minute surface is parallel with the casing upper and lower surface.Transparent adhesive film 5 is the refractive index colloid identical or close with the refractive index of planar lens material, and its thickness is preferably less than 1 millimeter.Scattering light source 1 is preferably led light source, is arranged on the side of planar lens 4.Trample platform above be equipped with reflective membrane 6; Trample platform below be provided with level crossing 7, the angle of planar lens and level crossing 7 be 45 the degree; The angle of the camera lens of filming apparatus 3 and level crossing 7 is that 45 degree are provided with, and promptly is horizontally disposed with, and filming apparatus 3 is preferably digital camera, can directly image be transported in the computing machine.During use, trample on reflective membrane 6 in vola 8.
Claims (4)
1, a kind of track acquisition instrument, comprise casing (9), be provided with scattering light source (1) in it, trample platform and filming apparatus (3), it is characterized in that: describedly trample the transparent adhesive film (5) that platform fits tightly by planar lens (4) and with planar lens (4) upper surface and constitute, trample platform above be equipped with reflective membrane (6); Trample platform below be tiltedly installed with level crossing (7), the camera lens of filming apparatus (3) and level crossing (7) angle and level crossing and planar lens be set angle complementary angle each other is set.
2, track acquisition instrument according to claim 1 is characterized in that: described transparent adhesive film (5) is the refractive index colloid identical or close with the refractive index of planar lens material, and its thickness is less than 1 millimeter.
3, track acquisition instrument according to claim 1 and 2 is characterized in that: described scattering light source (1) is a led light source, is arranged on the side of planar lens (4).
4, track acquisition instrument according to claim 3 is characterized in that: the thickness of described planar lens (4) is 10---20 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200137809U CN201133879Y (en) | 2007-08-09 | 2007-08-09 | Footmark collection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200137809U CN201133879Y (en) | 2007-08-09 | 2007-08-09 | Footmark collection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133879Y true CN201133879Y (en) | 2008-10-15 |
Family
ID=40062148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200137809U Expired - Lifetime CN201133879Y (en) | 2007-08-09 | 2007-08-09 | Footmark collection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133879Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103892841A (en) * | 2012-12-26 | 2014-07-02 | 大连恒锐科技股份有限公司 | Pressure sensing light and shadow imaging system and imaging method thereof |
| CN107451584A (en) * | 2017-09-18 | 2017-12-08 | 大连恒锐科技股份有限公司 | Footprint harvester with shoe pattern image collecting function |
| CN111012304A (en) * | 2018-10-09 | 2020-04-17 | 深圳市第二人民医院 | Foot pathology screening frame |
| CN113252666A (en) * | 2021-04-30 | 2021-08-13 | 大连恒锐科技股份有限公司 | Footprint acquisition instrument capable of simultaneously acquiring multi-angle vamp images and image processing method thereof |
| CN113264399A (en) * | 2021-04-26 | 2021-08-17 | 杭州创恒电子技术开发有限公司 | Footprint image acquisition equipment capable of automatically changing film and footprint image acquisition method |
| CN107451584B (en) * | 2017-09-18 | 2024-05-14 | 大连恒锐科技股份有限公司 | Footprint acquisition device with shoe sample image acquisition function |
-
2007
- 2007-08-09 CN CNU2007200137809U patent/CN201133879Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103892841A (en) * | 2012-12-26 | 2014-07-02 | 大连恒锐科技股份有限公司 | Pressure sensing light and shadow imaging system and imaging method thereof |
| CN103892841B (en) * | 2012-12-26 | 2016-12-28 | 大连恒锐科技股份有限公司 | A kind of pressure sensitivity light and shadow imaging system and formation method thereof |
| CN107451584A (en) * | 2017-09-18 | 2017-12-08 | 大连恒锐科技股份有限公司 | Footprint harvester with shoe pattern image collecting function |
| CN107451584B (en) * | 2017-09-18 | 2024-05-14 | 大连恒锐科技股份有限公司 | Footprint acquisition device with shoe sample image acquisition function |
| CN111012304A (en) * | 2018-10-09 | 2020-04-17 | 深圳市第二人民医院 | Foot pathology screening frame |
| CN113264399A (en) * | 2021-04-26 | 2021-08-17 | 杭州创恒电子技术开发有限公司 | Footprint image acquisition equipment capable of automatically changing film and footprint image acquisition method |
| CN113252666A (en) * | 2021-04-30 | 2021-08-13 | 大连恒锐科技股份有限公司 | Footprint acquisition instrument capable of simultaneously acquiring multi-angle vamp images and image processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DALIAN EVERSPRY IMAGE TECH. CO., LTD. Free format text: FORMER NAME: DALIAN HENGRUI IMAGE TECHN CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 116000 Liaoning Province, Dalian City High-tech Park Qixianling Xixian Street No. 31 Patentee after: DALIAN EVERSPRY SCI & TECH CO., LTD. Address before: 116000 Liaoning Province, Dalian City High-tech Park Qixianling Xixian Street No. 31 Patentee before: Dalian Hengrui Image Techn Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |
|
| CX01 | Expiry of patent term |