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

Claim 8:
9. The optical device according to claim 1, wherein
the active layer contains AlxIn1-xSb (0.04≤x≤0.14) or InAsySb1-y (0.80≤y≤1); 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 300 nm or less in a wavelength range of 3300 nm to 3600 nm, and has a maximum transmittance of 5% or more in a wavelength range of 6000 nm to 8000 nm.