US 12,092,813 B2
Digital viewing device
Sigrun Kammans, Herborn (DE)
Assigned to Leica Camera Aktiengesellschaft, Wetzlar (DE)
Appl. No. 17/798,255
Filed by Leica Camera Aktiengesellschaft, Wetzlar (DE)
PCT Filed Feb. 13, 2020, PCT No. PCT/DE2020/100103
§ 371(c)(1), (2) Date Aug. 8, 2022,
PCT Pub. No. WO2021/160195, PCT Pub. Date Aug. 19, 2021.
Prior Publication US 2023/0076002 A1, Mar. 9, 2023
Int. Cl. G02B 27/00 (2006.01); G02B 23/12 (2006.01)
CPC G02B 27/0025 (2013.01) [G02B 23/12 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A digital observation apparatus comprising:
at least one camera module, comprising an objective with a focal length fObj, said objective having an objective viewing angle α at which the objective is aligned to the center of an object field, and an image sensor having an imaging diagonal measurement dSensor; and
at least one electronic viewfinder, comprising an eyepiece having a focal length fOku, an image processor, a power supply and an electronic display having an imaging diagonal measurement dDisplay and a subjective viewing angle α′ of an observer at which a human eye views, via the eyepiece, an image generated by the objective on the viewing field of the display; wherein
the image processor comprises a computer program with a distortion-correction-algorithm for correcting a distortion on the image displayed on the display; and
the computer program is activatable via an actuation element.