530nm long pass filter applications: beauty equipment, police multiband detection equipment, flashlights, lighting color film, face recognition time attendance, optical instruments, fiber optic lighting, gold halogen insulation sheet, cold light show cabinet. Optical indicators: by band: 540nm-1200nm minimum transmittance: T> 94% center wavelength: 530nm ± 3 cutoff wavelength: 350nm-510nm cutoff depth: T <0.1%