490nm long wave pass filter

Long wave pass filters commonly used in beauty instruments include lp430nm, lp480nm, lp530nm, lp550nm, lp560nm, lp590nm, lp640nm and lp690; Main functions of seven bands: 430nm, 480nm: acne and acne; 530nm: freckle removal; 560nm: whitening and rejuvenating; 590nm: remove red blood filaments; 640nm, 690nm: hair removal.

638nm dichroic filter
Technical parameters
Items Parameters
Center wavelength 490±3nm
Incident angle
Transmission wavelength 490nm-1100nm
Peak transmittance > 95% (according to customer demand)
Product size 3mm-80mm (customizable)
Cut off wavelength 400nm-670nm (according to the customer requirements)
Cut off depth >OD4-OD6 UV-NIR
Product material optical grade glass (K9, BK7, B270, d263t, JGS1, color glass, float glass, etc.)
Surface quality national standard grade III /American Standard 60-40
spectral curve

In addition, We can customize the optical filters according to customer requirements or drawings.

For details, please consult:

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