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355nm Bandpass Filter

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Description

355nm Bandpass Filter

Material ：	Optical grade glass (k9.bk7.b270.d263tjgs1, color glass, float glass, etc.)
Incident angle:	0°
Center wavelength:	355 nm
Product size:	3mm-80mm (customizable)
Cutoff wavelength:	200nm-1100nm (according to customer requirements a)
Peak transmittance:	>90% (according to customer demand)
Cut off depth:	>OD4-OD6 UV-NIR
Luminous aperture (mm):	>11x11(11.4x11.4),> Φ 8.7( Φ 12.7)，> Φ 21( Φ 25.4)
Application fields:	355nm filter is used in machine vision, biochemical analysis, optical instruments, and other fields
Other indicators:	Customizable

Bandpass filter:
The filters adjacent to the cut-off region on both sides of the transmission band of the transmittance wavelength curve are called band-pass filters. Bandpass filters can be roughly divided into broadband filters and narrowband filters, and there is no definite boundary between these two types of filters

Optical characteristics of bandpass filter:
The higher the cutoff OD value, the narrower the pass bandwidth will be. At the same time, the higher the reflectivity of the cutoff film, the greater the absorption and scattering, so the peak transmittance of the band-pass filter will also become lower. In the all-dielectric band-pass filter, if the film transmittance of the two surfaces is not equal, it will also affect the reduction of the passband transmittance of the filter.

Application fields of bandpass filter:
Fluorescence analyzer, enzyme marker, cable TV upgrade equipment, wireless transmission equipment, mobile phone bar code scanning, infrared electronic whiteboard, infrared camera, infrared touch screen, iris recognition, infrared medical instrument, infrared ink recognition, red film recognition and face recognition sensor system. Hand held infrared laser rangefinder, laser rangefinder, optical instruments, medical and health equipment and testing instruments.

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