Patent ID: 11902697
Assignee: ORORATECH GMBH
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  B | IPC B  H

Claim 0:
1. A thermal imager, comprising:
a lens assembly;
an array of integrated circuit (IC) chips that is arranged in a field of view of the lens assembly, each IC chip comprising an array of thermopile devices; and
a filter assembly comprising one or more wavelength filters,
wherein the IC chips are arranged in three or more parallel rows of IC chips that include a pair of non-adjacent rows of IC chips and one or more rows of IC chips other than the pair of non-adjacent rows of IC chips;
wherein the filter assembly is arranged between the array of IC chips and the lens assembly and comprises a respective wavelength filter for at least one of the three or more rows of IC chips, wherein the at least one wavelength filter is transparent in a portion of a wavelength range of radiation that can pass through the lens assembly; and
wherein the filter assembly is further configured such that radiation of the same wavelength range can pass to the rows of IC chips in the pair of non-adjacent rows of IC chips, and such that the wavelength range of radiation that can pass to the rows of IC chips in the pair of non-adjacent rows of IC chips is different from a wavelength range of radiation that can pass to the one or more rows of IC chips other than the pair of non-adjacent rows of IC chips.