Industrial News

　　What is a short-wave outer infrared lens,its main application fields,and what are its advantages?The wavelength of infrared radiation is between visible light and microwave,its short wave is adjacent to red light in the visible light band,and its long wave is adjacent to microwave.

　　According to the generation mechanism of infrared radiation,the application and development of infrared radiation and considering the transmission characteristics of infrared radiation in the earth's atmosphere,the infrared radiation from 0.75 to 1000μm is further divided into four bands:

　　(1)Near Infrared(NIR):0.75~1μm

　　(2)Short-wave infrared,the wavelength range is 1~3μm;

　　(3)Mid-infrared or mid-wave infrared,with a wavelength range of 3-5μm;

　　(4)Far-infrared or long-wave infrared,the wavelength range is 7.5~14μm;

　　The thermal imaging lens series independently developed and designed by ShengQiang Optoelectronics(medium-band thermal imaging lens MJ7113A)is a high-resolution fixed-focus lens specially designed for the short-wave infrared band(MJ7113A,0.9~1.7um),and can match up to 1”The photosensitive chip(CCD)meets the needs of various target size cameras.It is designed as a manual aperture and adopts a multi-leaf design,which improves the aperture accuracy and the uniformity of incident light to a certain extent;the mirror material is made of germanium glass,and the refractive index of germanium glass is very high.High,only transmits infrared light,but not visible light and ultraviolet light,so military observers such as infrared night vision devices use pure germanium to make lenses.

　　The surface of the lens is coated with 0.7~1.7um multi-layer anti-reflection(AR)coating,which has high transmittance and can gather light in the 430~900nm or even longer wavelength range into the same three-dimensional,so no matter daytime imaging or night vision All are clear;the mechanical structure meets the high shock resistance environment,and is suitable for various short-wave infrared imaging applications such as spot detection,machine vision,industrial inspection,classification and quality control.It is a compact and lightweight lens for short-wave infrared imaging.