Patent ID: 11921038
Assignee: ASAHI KASEI MICRODEVICES CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. The optical device according to claim 1, wherein
the active layer contains AlxIn1-xSb (0.02≤x≤0.12) or InAsySb1-y (0.75≤y≤0.90); and
the optical filter includes a wavelength range having an average transmittance of 70% or more and 95% or less with a width of 50 nm or more and 150 nm or less in a wavelength range of 4200 nm to 4350 nm, and has a maximum transmittance of 5% or more in a wavelength range of 6000 nm to 8000 nm.