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Flow cytometry (FCM) is a cell analyzer used to detect the fluorescence intensity of stained cell markers. It is a high-tech method for rapidly measuring and collecting physical or chemical properties of cells, such as size, internal structure, DNA, RNA, proteins, antigens, etc. Based on the analysis and classification of single cells. Working principle introduction: Using laser as the excitation source to ensure better monochromaticity and excitation efficiency; By combining fluorescent dyes and monoclonal antibody technology,
Enabling the transmission of light of allowed wavelengths and the cutoff of light of other wavelengths plays a role in suppressing optical noise and enhancing optical signals, thereby providing good preprocessing for image recognition, reducing recognition workload, improving recognition accuracy and efficiency, and enhancing recognition capability. Machine vision filters have a series of characteristics such as small size, good imaging quality, and long lifespan. They are an indispensable and important component of machine vision systems. According to usage needs, some machine vision filters have loops, while others are bare chips
Near infrared interference narrowband filter is a type of infrared filter widely used in various fields such as biometric recognition. Interference filters or narrowband filters play an indispensable role in suppressing background noise in photodetectors. Thin film researchers have done a lot of work in the design and manufacturing of filters. Some thin film materials available for researchers in the near-infrared region, such as ZnS-mgf2, are relatively soft or unstable in combination
Friends who have used laser marking machines know that the marking depth of laser marking machines can be freely adjusted, but there are still many people who do not know this when they first come into contact with laser marking machines. I even found that they ask Du Niang: How to adjust the marking depth of laser marking machines? Today, I will talk to you about how to adjust the marking depth of the laser marking machine. 1、 Increasing the power of the laser can directly increase the depth of laser marking, but the prerequisite for increasing the power is to ensure the laser power supply and laser water cooling
Shortwave blue light is light with high energy between 400 nm and 480 nm. This wavelength of blue light increases the toxin content in the macular area of the eye, posing a serious threat to the health of the fundus. Blue light causes blindness. At present, an effective solution is to apply movies to television. The anti blue light coating technology is mature, low-cost, and can effectively prevent the penetration of blue light. Especially, it should be pointed out that not all blue light is harmful, the truly harmful blue light is between 400 and 440
1. Basic understanding of UV filters (UV lenses or UV glass): Long wave ultraviolet refers to ultraviolet light with a wavelength between 320 nanometers and 400 nanometers, which has strong penetration ability and can penetrate glass. Its energy is equivalent to most chemical bond energies, and it is easy to induce photochemical reactions. This is the type used for photo curing. Medium wave UV-B, with wavelengths between 280-320nm, has weak penetration and is strongly absorbed by glass. It is a type of sunlight
The characteristic fluorescence dichroic mirror, as a low absorption loss long wave pass filter, is easy to operate and clean. It is resistant to UV and chemical damage. The fluorescence dichroic mirror divides the beam into transmitted light and reflected light according to wavelength. The high reflectivity band of the long wavelength fluorescent dichroic mirror is smaller than the cutoff wavelength, and the high transmittance band is larger than the cutoff wavelength. Ruicheng Optoelectronics also provides short wave, high reflectivity beams with longer cutoff wavelengths and high transmittance beams with smaller cutoff wavelengths through dichroic mirrors. Our Fluorescence II
Infrared filters are one of the most important materials for artificial intelligence today. However, it is not an easy task to find manufacturers of biometric filters and optical infrared filters. After all, transparent infrared filters have only gradually become popular in the past two years, and the demand for AI intelligence has increased. The working principle of a filter: It is made of plastic or glass and contains special dyes. A red filter can only allow red light to pass through, and so on. glass
A polarizing beam splitter prism can split incident unpolarized light into two perpendicular linearly polarized lights. P-polarized light passes through completely, while S-polarized light reflects at a 45 ° angle and exits at a 90 ° angle to the P-light. A polarizing beam splitter is composed of a pair of right angled prisms. One of the prisms is coated with a polarizing splitting dielectric film on its inclined edge. Material: K9 or ZF glass, dimensional tolerance: ± 0.2mm extinction ratio: single wavelength>500:1,>1000:1
When choosing a laser marking field mirror, three aspects should be considered: 1. It should be matched with the equipment used. 2. It should be matched with the marking requirements. 3. Of course, we should also cooperate with the vibrating mirror, so when you purchase it, you must make a choice based on the following aspects. 1、 How long wavelength field lens is needed? The wavelength can generally be matched with the machine, and many customers do not know how many wavelengths their machine has. Generally speaking, we use the following waves: non-metallic machines to make