Wedge immersed thermistor bolometers
Abstract
An immersed thermistor bolometer for the detection of ultraviolet, visible, and infrared radiation is described. Two types of immersed bolometers are discussed. The immersion of thermistor flakes in a lens, or half immersed by optical contact on a lens, is examined. Lens materials are evaluated for optimum immersion including fused aluminum oxide, beryllium oxide, and germanium. The application of the bolometer to instruments in which the entrance pupil of the immersion optics has a high aspect ratio is considered.
- Publication:
-
National Aeronautics and Space Administration Report
- Pub Date:
- January 1964
- Bibcode:
- 1964nasa.rept.....D
- Keywords:
-
- Bolometers;
- Image Converters;
- Radiation Detectors;
- Thermistors;
- Aspect Ratio;
- Infrared Radiation;
- Lenses;
- Optical Materials;
- Patents;
- Ultraviolet Radiation;
- Instrumentation and Photography