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In daily life, human vision can observe objects of various colors, and the colors of filters in optical components also include red, orange, yellow, green, blue, purple, and other colors. So, what determines the color of the filter lens? Firstly, we need to understand the principle of light's action. The principle of light transmission on transparent and opaque media is different. 1、 The color of opaque media is determined by the colored light reflected by it. The color of opaque objects (such as tables and walls) is determined by their reflection
So far, we have discussed directly measuring the optical properties of filters, but there are still some natural properties of objects that are difficult to measure, which are related to the quality and processing of the film and substrate. For any optical component, a detailed description of the substrate will be provided, such as surface shape, polishing degree, allowable smear, smoothness, etc. The substrate should not be considered here. Mil-e13830a has been widely used in the United States, providing optical components including substrates
Optical coating refers to the process of coating one or more layers of metal or dielectric thin films on the surface of optical components. The purpose of coating the surface of optical components is to reduce or increase the requirements for light separation, reflection, beam separation, filtering, cutoff, polarization, etc. Vacuum coating and chemical coating are commonly used. The optical coating thin film design system includes optical thin films such as anti reflective films, reflective films, bandpass filters, cutoff filters, and depolarization films. Anti reflection film and residual anti reflection film in narrowband and broadband
A filter lens, as the name suggests, is an optical component that filters out a portion of light. Due to the fact that the characteristics of light are determined by two factors, frequency and intensity, filters are divided into two categories: frequency filters and intensity filters. Among them, frequency filters are also known as filters, because the color of light is caused by its different frequencies. Intensity filters include skylight filters, and frequency filters (color filters) include orange filters, yellow filters, etc. Filters of different colors can be used to dress up
The instrument used to scan the fluorescence spectrum emitted by liquid-phase fluorescent markers is collectively referred to as a fluorescence spectrophotometer. It can provide various physical parameters, such as excitation spectrum, emission spectrum, fluorescence intensity, quantum yield, fluorescence lifetime, fluorescence polarization, etc., reflecting the bonding and structure of molecules from different perspectives. By measuring these parameters, the conformational changes of molecules in various environments can be inferred, and general quantitative analysis can also be conducted to elucidate the relationship between molecular structure and function
Flame photometric detector is a type of gas chromatography detector, also known as sulfur or phosphorus detector, which has high selectivity and sensitivity for phosphorus and sulfur compounds, and is widely used for the determination of organic phosphorus and organic sulfur pesticide residues; It can also detect thiols in essential oils COS、H2S、CS2、SO2； Thiols in water pollution; H2S, SO2, CS2 in the air; Gas containing sulfides in natural gas. The commonly used flame photometric detector is a single flame, mainly
Ruicheng photoelectric enzyme-linked immunosorbent assay filter: IAD hard film structure, no drift, reliable and durable. Various specifications and sizes are available, suitable for various famous domestic and foreign enzyme-linked immunosorbent assay (ELISA) analyzers. Foreign brand enzyme-linked immunosorbent assay (ELISA) instruments are suitable for filters such as Mk3 thermoelectric ELISA reader, Tiken Tecan Sunup ELISA reader, Bole Bio rad ELISA reader, etc. Domestic brand enzyme-linked immunosorbent assay (ELISA) filter: Most domestic brands are applicable. Conventional enzyme reader filter wave
A characteristic of a telecentric scanning lens is that at least one lens in the lens group has an area larger than the size of the telecentric scanning lens. For example, if there is a 100 * 100mm telecentric scanning lens, there must be at least one lens with a size greater than 100 * 100mm, which means that the diameter of one of the lenses must be greater than 100 * 1.414=141.4mm. Many customers want to buy large format telecentric scanning lenses, for example, some customers divide me into
Optical beauty equipment mainly uses laser, strong pulse light, E-light, and infrared light as light sources to remove freckles, acne, blood streaks, soft skin, hair removal, eyebrow washing, tattoos, etc. Due to the unique spectral characteristics of these light source products, filters are required to achieve certain functional effects. At the same time, it avoids the harm caused by stray light to human skin. Electronic optical beauty device filter/IPL filter is mainly used for various electronic optical models, ipls
Nowadays, people have increasingly high demands for quality of life. We need the atmosphere of eating and the intelligence of our homes. Even the traditional entertainment program that began to be popular in China in the 1980s - watching TV - has been challenged. Yes, the rapidly developing home projectors in recent years have shaken the position of traditional television. Do you know the principle behind projectors, which are ubiquitous in daily life? The projector first illuminates the image display element with light to generate an image, and then uses a lens to enter