FIELD: physics.
SUBSTANCE: optical system for thermal imaging devices has optical components which construct an intermediate image and transfer the intermediate image into the image plane formed in the plane of light-sensitive elements of a photodetector array. The system is fitted with a defocusing element which is not fixed and allows to shift the image plane into a cold aperture plane or a plane lying between the cold aperture plane and the plane of the photosensitive elements of the photodetector array. The defocusing element can move in and out of the optical channel.
EFFECT: compensation for non-uniformity of the constant component of the signal from the photosensitive elements of the photodetector array of the thermal imaging device.
5 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF COMPENSATING FOR SIGNAL IRREGULARITY OF PHOTOSENSITIVE ELEMENTS OF MULTIELEMENT PHOTODETECTOR | 2010 |
|
RU2449491C1 |
| OPTICAL THERMAL IMAGING SYSTEM FOR MID-INFRARED SPECTRAL REGION | 2013 |
|
RU2543693C1 |
| OPTICAL THERMAL IMAGING SYSTEM FOR MID-INFRARED SPECTRAL REGION | 2014 |
|
RU2567444C1 |
| OPTICAL SYSTEM FOR THERMAL IMAGING DEVICE | 2013 |
|
RU2525463C1 |
| OPTICAL SYSTEM WITH REMOTE APERTURES FOR INFRARED SPECTRUM | 2008 |
|
RU2386156C1 |
| COMPACT LENS OF MID-INFRARED RANGE | 2016 |
|
RU2621366C1 |
| OPTICAL SYSTEM FOR FORMING AN INFRARED IMAGE | 2019 |
|
RU2722974C1 |
| HIGH-APERTURE LENS WITH OFFSET PUPILS FOR INFRARED AREA OF SPECTRUM | 2008 |
|
RU2379723C1 |
| INFRARED SYSTEM | 2008 |
|
RU2378788C2 |
| OPTICAL SYSTEM OF THERMAL IMAGING DEVICE WITH TWO FIELDS OF VIEW | 2021 |
|
RU2783763C1 |
