Wide-spectrum forensic device for criminal investigation

A broad-spectrum, criminal investigation technology, applied in measurement devices, color/spectral characteristic measurement, fluorescence/phosphorescence, etc., can solve the problems of cumbersome forensics process, low survey efficiency, poor equipment portability, etc., to achieve convenient switching of light sources and reduce equipment types , easy to carry

Pending Publication Date: 2020-02-07
SHENZHEN WAYHO TECH
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  • Abstract
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Problems solved by technology

Therefore, this technology requires surveyors to carry various survey equipment such as infrared cameras, ultraviolet cameras, ultraviolet light sources, and multi-band light sources in addition to SLR cameras and video recorders used for on-site photography and video recording. Frequent switching between devices, obviously, will cause problems such as poor portability of the device, cumbersome evidence collection process, and low investigation efficiency

Method used

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  • Wide-spectrum forensic device for criminal investigation
  • Wide-spectrum forensic device for criminal investigation
  • Wide-spectrum forensic device for criminal investigation

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0033] The wide-spectrum evidence collection device for criminal investigation in the embodiment of the present application is a camera device, which can be applied to displaying and photographing evidence at a criminal investigation scene.

[0034] refer to figure 1 , the wide-spectrum forensics device for criminal investigation in the embodiment of the present application includes a host 10, a light source 20, an achromatic lens 30, and a filter wheel 40 equipped with an optical f...

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Abstract

The application discloses a wide-spectrum forensic device for criminal investigation, comprising a host, a light source, an achromatic lens and a filter wheel. The light source is disposed on a light-in end of the achromatic lens. A light-out end of the achromatic lens is connected to the host through the filter wheel. The light source comprises a plurality of first illuminants with different wavelengths. Moreover, the wavelength of at least one of the first illuminants is located in a ultraviolet band. The first illuminants with different wave lengths are controlled independent of each other. Through the above manner, the forensic device of the application is convenient to be carried, which is advantageous for simplifying a forensic process and improving investigation efficiency.

Description

technical field [0001] The application relates to the technical field of public security criminal investigation, in particular to a wide-spectrum evidence collection device for criminal investigation. Background technique [0002] In the process of crime scene investigation, in order to find more biological samples, potential fingerprints, tool marks and other traces, to obtain more investigation clues and criminal evidence, investigators need to use a variety of technical means to conduct a detailed investigation of the crime scene . The optical display technology can largely avoid damage to the traces left at the crime scene and various inspection materials, so it is widely used in the investigation of crime scenes. [0003] The so-called optical display technology is a display method that makes use of the properties and laws of light to display and record some traces and various physical evidence that cannot be seen clearly or even invisible to the eyes, and comprehensiv...

Claims

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Application Information

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IPC IPC(8): G01N21/33G01N21/64G01N21/01
CPCG01N21/01G01N21/33G01N21/64G01N2021/0112
Inventor 赵辉梁洪易罗飞梁朝阳
Owner SHENZHEN WAYHO TECH
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