Unlock instant, AI-driven research and patent intelligence for your innovation.

A scale visible under infrared light and its preparation method

A scale, infrared light technology, applied in the criminal investigation and optical fields, can solve the problems of influence, scale overexposure, large light intensity gap, etc., to ensure the image quality, reduce work discomfort, and improve accuracy.

Active Publication Date: 2022-06-24
长春光吉科技有限责任公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some environments that require photography and evidence collection, the strong light of the flashlight will first have a strong impact on the light of the physical evidence, and it is even difficult to obtain evidence. Moreover, even if the light of the physical evidence at the scene is strong, there is a big gap between it and the light intensity of the flashlight. It will cause the light ratio to exceed the dynamic range of the camera, resulting in overexposure of the scale or underexposure of physical evidence. Therefore, it is urgent to develop a scale visible under infrared light and its preparation method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A scale visible under infrared light and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The invention provides a scale visible under infrared light and a preparation method thereof. The infrared light is used for excitation to ensure a dark field environment, and the laser etching is used to ensure the depth and accuracy of the scale. Please refer to figure 1 , a scale that is visible under infrared light, characterized in that it includes: a scale body 100, a scale line 200 and a scale mark 300, and the scale line 200 is evenly opened on the top of the front side wall of the scale body 100, so The scale mark 300 is evenly opened on the front side wall of the scale body 100, the scale mark 300 is located at the bottom of the scale line 200, and the scale line 200 and the scale mark 300 use laser etching technology on the scale body. The front side wall of the 100 is etched with the ruler position of the ruler mark. The depth of the ruler position exceeds 0.5mm. Laser etching is used to ensure the depth and accuracy of the ruler position. The interior of the...

Embodiment approach 1

[0031] The steps of the preparation method of the scale bar visible under infrared light are as follows:

[0032] Step 1: Grinding by ball mill: 0.1 part of neodymium, 18 parts of yttrium constitute rare earth elements, 15 parts of aluminum, 55 parts of oxygen and 8 parts of sulfur constitute oxides or inorganic salts, and the rare earth elements and oxides or inorganic salts are in a molten state at 1000 Kelvin , the rare earth elements are combined with inorganic salts or oxides in the form of ionic complexes, and the combination is ground by a ball mill at room temperature at a speed of 500 revolutions per minute to obtain powder particles with a diameter of 2 microns.

[0033] Step 2: Spectral analysis: Use the HR4000+ spectrometer of Ocean Optics Company to irradiate the powder particles with a weaker visible light with a wavelength of 520nm under the irradiation of infrared light with a wavelength of 1500nm.

[0034] Step 3: Manual stirring: mixing powder particles and e...

Embodiment approach 2

[0036] The steps of the preparation method of the scale bar visible under infrared light are as follows:

[0037] Step 1: Grinding with a ball mill: 0.5 parts of neodymium, 10 parts of yttrium form rare earth elements, 30 parts of aluminum, 40 parts of oxygen and 10 parts of sulfur form oxides or inorganic salts, and the rare earth elements and oxides or inorganic salts are in a molten state at 1700 Kelvin , the rare earth elements are combined with inorganic salts or oxides in the form of ionic complexes, and the combination is ground by a ball mill at a speed of 50 revolutions per minute at room temperature to obtain powder particles with a diameter of 50 microns.

[0038] Step 2: Spectral analysis: Use the HR4000+ spectrometer of Ocean Optics Company to irradiate the powder particles with a weaker visible light with a wavelength of 680nm under the irradiation of infrared light with a wavelength of 900nm.

[0039]Step 3: Manual stirring: mixing powder particles and epoxy res...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a scale visible under infrared light, which belongs to the technical fields of optics and criminal investigation, including: a scale body, scale lines and scale marks, and the top of the front side wall of the scale body is uniformly provided with the scale line, the front side wall of the scale body is uniformly provided with the scale mark, the scale mark is located at the bottom of the scale line, a scale visible under infrared light, by weight, the scale mark in infrared light The lower visible scale includes the following compositions: Neodymium: 0.1‑0.5 parts, Yttrium: 10‑18 parts, Aluminum: 15‑30 parts, Oxygen: 40‑55 parts, Sulfur: 8‑10 parts, a The preparation method of the visible scale is as follows: step 1: ball mill grinding: neodymium and yttrium form rare earth elements, aluminum, oxygen and sulfur form oxides or inorganic salts, and the invention uses infrared light for excitation to ensure dark In the field environment, laser etching is used to ensure the comprehensive effect of the depth and accuracy of the scale position.

Description

technical field [0001] The invention relates to the technical fields of optics and criminal investigation, in particular to a scale visible under infrared light and a preparation method thereof. Background technique [0002] Scales are often used in criminal technology to mark the size information of physical evidence. The extraction of physical evidence in criminal scenes is often performed in dark field (ie, no light) conditions. Currently, conventional scales are used with flashlights and other light sources to display. The current criminal technology forensics scene often uses a scale to mark the size information of the physical evidence. However, because many types of physical evidence require laser and LED multi-band to excite weaker evidence light, the physical evidence forensics scene often needs to be arranged with a dark field to eliminate Due to the interference of ambient light, the scale mark is difficult to see in the dark field, so the staff will illuminate th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/84C09K11/02G01B3/00G01B5/00
CPCC09K11/7774C09K11/025G01B3/004G01B5/00
Inventor 王治洋黄旭张程承刘颂
Owner 长春光吉科技有限责任公司