[Silvery white]

Detailed parameters of 650 band pass filter:
Band pass band filter -- 650nm
Central wavelength: 650 + - 10 nm
Half bandwidth: 30nm
Peak transmittance > 92%,
Process: glass coating
Color: Red Mirror glass or silver white glass
The physical size is 7.0 * 4.0 * 1.0mm,
Main function: red light scanning bar code, red glass red light, red light distance measurement