TEST OBJECT FOR SIMULTANEOUS CALIBRATION OF VIDEO CAMERAS OF VISIBLE AND INFRARED RANGES WITH FORCED COOLING OF REFERENCE INCANDESCENT LAMPS Russian patent published in 2024 - IPC G06T7/80 G01M11/02 

FIELD: computer engineering.

SUBSTANCE: invention can be used for determination and reduction to specified values of parameters of video cameras of visible and infrared ranges of wave lengths. Test object for simultaneous calibration of video cameras of the visible and infrared ranges of the optical spectrum contains a base in the form of a flat plate with low thermal conductivity, on which the bases of incandescent lamps are arranged in an orderly manner, in which reference incandescent lamps are installed. Flat collimator plate with ordered holes for incandescent lamps is attached to the base, which does not transmit visible and infrared radiation. Reference lamps are switched on and off by power switches—field-effect transistors with an insulated gate, to which a pulse-width modulation (PWM) signal is supplied. Also, the test object comprises a module for independent control of brightness of each i-th lamp of the test object, i=1,2,...,N, where N is the number of lamps, wherein each i-th control output of the brightness control module is connected to the control electrode of the i-th power switch, the output of the i-th power switch is connected to one of the contacts of the i-th lamp, the second contact of the i-th lamp is connected to the supply voltage bus. Also, the test object contains planar inlet fans forcedly switched on by the user, at that, the fan plane is parallel to the base plane, and on the rear side of the collimator plate there are deflectors made of elastic material.

EFFECT: providing the possibility of forced cooling of reference incandescent lamps for fast elimination of thermal contrast of switched off lamps.

1 cl, 1 dwg