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Optical crystals are mainly used to make windows, lenses, and prisms in the ultraviolet and infrared regions. According to their crystal structure, they can be divided into single crystals and polycrystals. Due to their high integrity, high transmittance, and low input loss, the commonly used optical crystals are mainly single crystals. Nonlinear optical crystal is a type of crystal that exhibits two or more nonlinear optical effects under the action of a strong laser electric field. Nonlinear optical crystal uses a frequency doubling ("frequency conversion") crystal to convert the wavelength of the laser, thereby expanding the tunable range of the laser
As the temperature increases, the radiation peak shifts to the left along the short wave direction, satisfying Wien's displacement theorem. The peak wavelength is inversely proportional to the absolute temperature T. This formula tells us why high-temperature thermometers work in short waves, while low-temperature thermometers work in long waves. When the temperature of an object is above absolute zero, due to the presence of internal thermal motion, electromagnetic waves will continue to radiate towards the surroundings, including infrared light ranging from 0.75 μ m to 100 μ m. His biggest characteristic is that he is given
Ruicheng Optoelectronics specializes in producing various camera filters, optical heat screens, infrared cut-off filters, mobile camera filters, digital camera filters, heat screens, security camera filters, CCD filters, night vision filters, lens filters, crystals, filters, filters, spectrometers, spectrometers, reflectors, lenses, prisms, infrared acrylic sheets, panels, window panels and other optical products. Ruicheng Optoelectronics specializes in fiber optic lighting, LED lighting, and metal halide photonics
Customized filter is a type of filter/filter formed by coating a series of film layers of different dielectric materials between glass substrates according to customer needs when standard filters do not meet usage requirements. When multiple wavelengths of mixed light pass through the filter, interference effects occur due to different refractive indices, resulting in specific wavelengths of light having very high transmittance while other wavelengths of light are reflected or absorbed. Customized filters are usually ordered in one batch, while
Today let's take a look at the optical component plan and how to understand the annotations on it for your reference. The content of the optical component plan mainly includes the external dimensions, materials, technical requirements, and characteristics of the optical component. The main title bar contains the product name and code; Scale of the image; Material name, code, standard number; Design, change and other signature columns. Requirements for materials: nd value (refractive index): Light propagates at different speeds in different media. In physics
Laser ranging principle: Laser rangefinder is an instrument that uses laser to accurately measure the distance of a target. The laser rangefinder emits a very fine laser beam towards the target during operation. The laser beam reflected by the target is received by the photoelectric element. Measure the time from transmission to reception using a timer and calculate the distance from the observer to the target. If the laser is continuously emitted, the range can reach about 40km, and this operation can be carried out during both day and night. If the laser pulse has absolute accuracy
With the vigorous development of China's national economy, environmental protection work in the overall environment has been urgently put on the agenda. China's motor vehicle exhaust emission standards are approaching those of Europe. The opaque smoke meter with high technical indicators for automobile exhaust detection is gradually replacing the filter paper smoke meter and entering the market. The opaque smoke meter is a portable intelligent instrument used to detect visible pollutants in the exhaust and smoke of compression ignition diesel engines. This instrument adopts advanced measurement technology and advanced detection components from abroad
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Dear customers and employees, the 2019 National Day holiday schedule is as follows. Please be informed:
The principle of fluorescence spectroscopy is applied in the field of analysis, and fluorescence filters can be used for real-time observation, qualitative identification, and quantitative analysis of biochemical activity. Fluorescence spectroscopy technology has been widely used in the fields of biology and analysis due to its high sensitivity, good specificity, and easy operation. Most fluorescent instruments, including most fluorescence microscopes, are typically of the fluorescent filter type. A typical system consists of three filters: excitation filter (excitation), dual color beam splitter（