Trace physical evidence visible extractor

Abstract

The invention discloses a trace physical evidence visible extractor. A lead screw and an electric motor are arranged in an equipment upright so as to drive a cylindrical shell to move up and down; a camera device and an annular lamp are arranged in the cylindrical shell, the camera device can be the existing digital PC camera, a digital camera or an electron microscope, the physical evidence can be photographed or shot under the irradiation of the annular lamp so as to obtain the evidence; a movable lens group is arranged at the lower end of the camera device, a third through hole is aligned to a second through hole by toggling a sliding block, thereby photographing the front of the evidence to take the evidence, and the third through hole can be aligned with the first through hole by toggling a sliding rail, the camera device collects an image of the physical evidence side presented through the reflecting of two reflectors, and the whole movable lens group can be rotated to observe all sides of the physical evidence in the premise of not adjusting the physical evidence and the camera device location, and images in visual angles can form a three-dimensional image through the software.

Description

technical field [0001] The invention relates to a physical evidence inspection instrument, in particular to a visual extractor for trace physical evidence. Background technique [0002] The physical evidence tester is a kind of photographic and video equipment that is frequently used in the field of criminal investigation, and it is an important equipment that provides physical evidence for solving and finalizing cases. In the existing physical evidence inspection equipment, the equipment such as the camera and the light source are all separate devices, the integration degree is not high, and it requires the cooperation of multiple people to operate, which is inconvenient to use. And when taking evidence, it is necessary to take pictures from multiple angles of the physical evidence, which is difficult to complete without moving the physical evidence or changing the angle of the camera device, which brings great inconvenience to the evidence collection operation. Contents ...

AI Technical Summary

Problems solved by technology

In the existing physical evidence inspection equipment, the camera and light source and other equipment are all discrete devices, the integration level is not high, and it requires the cooperation of multiple people to operate, which is inconvenient to use

Moreover, it is necessary to take pictures from multiple angles of the physical evidence when taking evidence, which is difficult to complete without moving the physical evidence or changing the angle of the camera device, which brings great inconvenience to the forensics operation

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