590nm long wave pass filter

Long wave pass filter, also known as high pass filter or long pass filter, abbreviated as LPF in English, is commonly referred to as a high pass filter in photographic filters, and the corresponding low-pass filter is what we call a short wave pass filter. Long wave pass filter refers to an optical element that allows a certain range of long wave light to pass through or be highly transparent within a specific wavelength range, while blocking the short wave band below the cutoff point. Its function is to isolate a certain spectral band, and it is a type of cut-off filter. Compared with the traditional colored optical glass filter, Ruicheng Optoelectronics stipulates that the position point of the long wave pass filter uses the wavelength point with the transmittance of 50% as the identification point, which has the advantages of large cut-off gradient, high transmittance and large background light density. Moreover, it is completely different from the traditional optical glass method. When the incidence angle changes (turning from 0 degrees to a large angle), the characteristic cut-off wavelength will move to the short wave direction. This function can be used in the system fine tuning and can get the wavelength you need.

Optical specifications:
Product Name: 590nm Long Wave Pass Filter

Transmitting band: 590nm-1200nm

Minimum transmittance: T>95%

Center wavelength:; 590nm± 2nm

Cut off band: 200nm-575nm

Deadline depth: OD5

Design incidence angle: 0 degrees

Product materials: B270, quartz, optical glass, Corning glass, colored glass (suitable substrate can be used according to customer requirements).

Product size: Any size can be customized

Application fields:
Beauty devices, police multi band detectors, strong light flashlights, stage lighting color chips, facial recognition attendance devices, optical instruments, fiber optic lighting, metal halide lamp insulation boards, cold light source display cabinets, optical instrument detection equipment, medical devices, etc.

Test curve of filter: