| 摘要 |
<p>The invention relates to an apparatus for measuring the illumination which comprises an optical sensor receiving the illumination and an adder (14) which cumulates during one time unit the illumination received by said optical sensor. The optical sensor is comprised of a photoresistant cell of which the resistance varies with the illumination received, said sensor being protected by at least one convergion means (8) which converts the ultraviolet radiation into visible radiation directed to the photoresistant cell.</p> |
