Camera with a controllable diaphragm

摘要

It is known to control the duration of the illumination (exposure) and the sensitivity to light (filter response, speed) by means of an iris diaphragm (graduated iris diaphragm, iris). Such known iris diaphragms, designed like this, can only be controlled as a whole. The object is to control the light transmission (transmittance) in a camera pixel by pixel as a function of the ambient brightness. The diaphragm according to the invention consists of pixels which form a matrix and whose transparency can be controlled as a function of the brightness. As a result, the impression of contrasts in the picture is increased considerably so that an impression of a light source is produced which is not too bright. In particular, for cameras.