Blood is a red, opaque, viscous fluid that flows through a person's blood vessels and heart. Blood consists of plasma and blood cells. One liter of plasma contains 900-910 grams of water, 65-85 grams of protein and 20 grams of low molecular weight substances. The function of blood includes two parts: blood cell function and plasma function, including transport, regulation of human body temperature, defense, regulation of human osmotic pressure and acid-base balance. The physiological changes and pathological changes of the body often lead to changes in blood components, so the detection of blood components has very important clinical significance. The optical system composed of optical elements such as optical lenses, optical prisms and optical filters is one of the key components of testing instruments such as automatic blood cell analyzers, flow cytometers, and fluorescent cell sorters. It is directly related to the detection accuracy of the instrument.


Real-time fluorescence quantitative PCR technology was launched by AppliedBiosystems in the United States in 1996. Because this technology not only realizes the leap from qualitative to quantitative PCR, but also has stronger specificity compared with conventional PCR, effectively solves the problem of PCR contamination, and the degree of automation. It has high characteristics and has been widely used in pathogen detection, prenatal diagnosis, drug efficacy assessment, tumor gene detection and other fields. The optical system composed of optical elements such as optical lenses and optical filters is one of the key components of the fluorescence quantitative PCR instrument, and its quality is directly related to the detection accuracy of the instrument.


In modern society, electronic devices such as mobile phones and computers have become indispensable products in people's life and work. Frequent use of electronic devices will cause damage to human eyes to a certain extent, and the occurrence of ophthalmic diseases has become normalized. Therefore, the development technology of ophthalmic diagnostic equipment is also constantly updated with the needs of the times. Currently commonly used ophthalmic diagnostic equipment includes: ophthalmic optical coherence tomography (OCT), automatic refractometer (vision screener), anterior segment (OCT) scanner, posterior segment (OCT) scanner. Optical components such as optical lenses and optical prisms play a pivotal role in ophthalmic diagnostic equipment.


Spectral analysis is a method to identify the chemical composition of a substance and determine its relative content based on the substance's spectrum. Spectroscopic analysis has been widely used in science and technology, such as: checking the purity of semiconductor materials silicon and germanium; discovering some new elements in history; studying the chemical composition of celestial bodies, etc. Optical components such as optical lenses, optical prisms, optical mirrors, and optical filters provided by Optech are widely used in modern commonly used spectral analysis instruments, such as atomic emission spectrometers, spectrophotometers, infrared spectrometers, etc.


Laser detection technology is widely used, such as laser interference length measurement, laser distance measurement, laser vibration measurement, laser speed measurement, laser speckle measurement, laser alignment, laser holography, laser scanning, laser tracking, laser spectral analysis, etc. Huge superiority of measurement. Laser heterodyne interferometry is an important technique for nanometer measurement. Laser measurement is a non-contact measurement that does not affect the movement of the object to be measured, with high accuracy, large measurement range, short detection time, and high spatial resolution. Optech provides laser components to support you in the field of laser measurement.


The color sorter is a device that uses the principle of photoelectricity to detect and separate the individuals (spherical, block or granular) with abnormal colors or infected with diseases and insect pests and foreign impurities from a large number of bulk products. The color sorter is mainly used in the rice milling and finishing industries and the processing industries that require color sorting of solid particulate materials, such as food, agricultural products, chemicals and mineral processing industries. There are many types and types of color sorters, such as plastic color sorters, miscellaneous grain color sorters, tea color sorters and so on. But no matter what kind of structure the color sorter is composed of optical system, feeding system, sorting system and electric control system. Optical filters (color sorting bands) and optical lenses provided by Optech are widely used in color sorter manufacturers.


Water resource is one of the indispensable and irreplaceable important resources for the development of human society. The water crisis in the current human society has directly affected the normal life and economic development of human beings. In the investigation and control of water resources quality, water quality analysis plays an important role. Water quality analysis, also known as water chemical analysis, is to use chemical and physical methods to determine the content of various chemical components in water. For example, high-precision spectrometer is used to analyze and find some metal ions in water, and the radioactivity of water is determined; potassium persulfate spectrophotometer is used to measure the total nitrogen concentration of water; ammonia molybdate spectrophotometer is used to measure the total phosphorus of water. concentration, etc. In these water quality analysis systems, optical elements such as optical lenses, optical prisms, and optical windows are important components to achieve test analysis. The precise control of optical devices is directly related to the accuracy of the analysis results.


In today's increasingly serious atmospheric environmental problems, atmospheric environmental quality monitoring has become the main technical means to monitor and protect the atmospheric environment. The air quality monitoring items stipulated in my country include sulfur dioxide, nitrogen dioxide, carbon monoxide, ozone, etc. In addition, according to the characteristics of regional air pollution, benzo (a) pyrene, lead, particles with a particle size of less than or equal to 10 μm, total suspended Particulate matter, fluoride, etc. Air quality monitoring stations usually monitor conventional atmospheric 6 parameters (PM2.5, PM10, O3, SO2, NO2, CO) and meteorological 5 parameters (temperature, air pressure, humidity, wind direction, wind speed). The principle of the monitoring equipment used is mainly photochemical method, beta ray method and oscillatory balance method. Optical components are an indispensable part of these devices. For example, the air quality automatic monitor that detects SO2 content in the air by ultraviolet fluorescence method uses ultraviolet light of 190~230nm to excite SO2 to generate 250~420nm fluorescence. This is achieved by receiving and analyzing fluorescence. In this system, the optical filter plays a key role in filtering the incident light and passing the fluorescence.