APPARATUS FOR OPTICAL QUENCH OF A SAMPLE

摘要

Apparatus for the optical quench of a sample (10) including a photodetector (12, 14), means for positioning the sample in an operative relationship with the photodetector, and a liquid crystal light valve (15) disposed between the sample and the photodetector when the sample is in the operative relationship. The light transmission characteristics of the liquid crystal light valve are varied in response to an attenuation signal generated by a power supply. The apparatus may further include means responsive to the photodetector means for generating a control signal and the power supply means may further be responsive to the control signal for varying the attenuation signal with respect thereto.