610nm bandpass filter, face more demands infrared measuring instruments, as well as similar products, 620nm + 890nm dual bandpass filter, 630nm + 890nm dual bandpass filter, 640nm + 890nm dual band pass filter ray, 650nm + 940nm dual bandpass filter for the LD650, Led 635nm:, Led 640nm, Led 647nm red and infrared filters IRM850,890,940 receive optical indicators: center wavelength: 610 ± 2nm transmittance : T> 91% half-bandwidth: 40nm cutoff wavelength 350nm-570nm 650nm-1100nm cutoff rate: T <0.1% Features: Imported thin optical glass, through the tall, good finish, thickness tolerances, excellent flatness and other optical properties ; imported equipment ion sputtering coating technology, with high labor solid film, spectral uniformity, stability and strong performance center wave characteristics; be professional manufacturers to ensure product stability and consistency of quality assurance, delivery! timely delivery, excellent prices other sizes: 4 * 4 * 1.0mm, 5 * 5 * 1.0mm, 6 * 6 * 1.0mm, 10 * 10 * 1.0mm Applications: red laser measuring instrument container, barcode scanners, desktop barcode scanners, laser measuring instrument, 640nm LED lights, red LD pumped laser, red laser diode, IR range finder, a fingerprint identification device.