Filter manufacturers discuss biometric filters
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. The refractive index of glass is almost the same as that of air. All colors of light can pass through, so it is transparent. But after dyeing, the molecular structure and refractive index of the glass sheet changed, and the passage of some colored light also changed. Filter is used to filter out light within a certain wavelength range, which functions as a monochromator but cannot obtain monochromatic light.
Biometric recognition technology mainly refers to the technology of identity authentication through human biometric features. Human biological characteristics are usually unique and can be measured or automatically identified and verified, inherited or lifelong invariant, etc. Therefore, biometric authentication technology has significant advantages compared to traditional authentication techniques.
The biometric recognition system samples biometric features, extracts their unique features, converts them into digital codes, and further combines these codes into feature templates. The biometric features used for biometric recognition include hand shape, fingerprint, face shape, iris, retina, pulse, auricle, etc. Behavioral characteristics include signature, voice, button strength, etc. Based on these features, people have developed various biometric recognition technologies, such as hand recognition, fingerprint recognition, facial recognition, speech recognition, iris recognition, signature recognition, etc.
Biometric infrared filtering technology can be widely applied in fields such as government, military, banking, social welfare, e-commerce, security, and national defense. For example, a depositor walks into a bank and withdraws money directly without a bank card or password. When he withdrew money from the ATM, a camera scanned the user's eyes and quickly and accurately completed the user's identification and transaction. The Ministry of Commerce is using modern biometric technology; Iris recognition system;.
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. The refractive index of glass is almost the same as that of air. All colors of light can pass through, so it is transparent. But after dyeing, the molecular structure and refractive index of the glass sheet changed, and the passage of some colored light also changed. Filter is used to filter out light within a certain wavelength range, which functions as a monochromator but cannot obtain monochromatic light.
Biometric recognition technology mainly refers to the technology of identity authentication through human biometric features. Human biological characteristics are usually unique and can be measured or automatically identified and verified, inherited or lifelong invariant, etc. Therefore, biometric authentication technology has significant advantages compared to traditional authentication techniques.
The biometric recognition system samples biometric features, extracts their unique features, converts them into digital codes, and further combines these codes into feature templates. The biometric features used for biometric recognition include hand shape, fingerprint, face shape, iris, retina, pulse, auricle, etc. Behavioral characteristics include signature, voice, button strength, etc. Based on these features, people have developed various biometric recognition technologies, such as hand recognition, fingerprint recognition, facial recognition, speech recognition, iris recognition, signature recognition, etc.
Biometric infrared filtering technology can be widely applied in fields such as government, military, banking, social welfare, e-commerce, security, and national defense. For example, a depositor walks into a bank and withdraws money directly without a bank card or password. When he withdrew money from the ATM, a camera scanned the user's eyes and quickly and accurately completed the user's identification and transaction. The Ministry of Commerce is using modern biometric technology; Iris recognition system;.