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The main function of the field mirror is to: (1) improve the ability of the edge beam to be incident on the detector; (2) In the same main optical system, additional field mirrors will reduce the detector area. If the same detector area is used, the field of view can be expanded and the incident flux can be increased; (3) It is possible to allocate the position of the image plane to place the modulation disk, in order to solve the problem of having nowhere to place the modulator; (4) Make the non-uniform illumination on the photosensitive surface of the detector uniform; (5) When using a flat image
Laser cutting is the principle of using a convex lens to focus parallel laser beams onto the material being cut, causing it to melt and cut. It is similar to the principle of using a magnifying glass to point paper when playing with it in childhood. It's just that the energy of the laser is much higher. The focusing mirror of laser cutting machine is basically flat on one side, convex on the other side, and the convex side faces upwards! Shenzhen Ruicheng Optoelectronic Technology Co., Ltd. produces various optical lenses, laser protective lenses, and laser single piece polymers for laser equipment
From the length of the spectrum (region): ultraviolet light, visible light, near-infrared light, infrared light, far-infrared filter. Commonly used terms: 180nm-400nm ultraviolet light, 400nm-700nm visible light, 700nm-3000nm infrared light, and spectra above 3000nm-10um are far-infrared (already beyond the band produced by our company). Filter products are mainly based on spectral bands, spectral characteristics, and film materials,
We need to determine the wavelengths of your laser filter and transmission filter, which are usually used in sets. Common excitation light EX (Excitation): UV, UV, 365nm blue light, B, 450nm, 455460470, green light, G, 510525530546555664570nm. The EM (Emission) band is correspondingly longer than the EX band.
Biometric technology is a recognition technology that relies on the physical characteristics of the human body for identity verification. Due to its characteristics of not losing, not forgetting, uniqueness, immutability, good anti-counterfeiting performance, and convenient use, with the development of technology, our lives are increasingly inseparable. Biometric recognition technology is widely used in access control, attendance, finance, public safety, and terminal electronic devices. 1. Fingerprint recognition is currently the most widely used recognition method, mainly through
Why does the protective lens of the laser cutting machine suddenly break
There are usually many models of ordinary laser machines, and their biggest difference lies in the processing area and laser tube power. Another important configuration is the laser lens. What if you want to buy a laser machine to cut both wooden boards and fabrics? So first of all, the power of the machine you choose should reach the thickness that can cut through your wooden board, of course, the fabric can definitely be cut through. However, it should be noted that the focusing lens must have two pieces, and the focal length should be used when cutting wooden boards
Optical components used to select the desired radiation band. There are two types: color filters, which are flat glass or gelatin sheets of various colors with a transmission bandwidth of several hundred angstroms. They are commonly used in broadband photometry or installed in stellar spectrographs to isolate overlapping spectral levels. Its main feature is that the size can be made quite large. Thin film filters are divided into two types: thin film absorption filters and thin film interference filters. The former is achieved by chemically etching on a specific material substrate to position the absorption line precisely at the desired wave
Optical components used to select the desired radiation band. One commonality of filters is that no filter can make the imaging of celestial bodies brighter, because all filters absorb certain wavelengths, making objects darker. Divided by spectral band, UV filter, visible filter, UV filter, bandpass filter, cut-off filter, long wave pass (low-pass), short wave pass (high pass), bidirectional spectral filter, neutral density filter