A Thermal Control System for the KS-87B Camera
Abstract
Thermal gradients within the lens cone of the KS-87B aerial camera cause focal length changes which degrade photographic quality. A thermal control system has been developed in an attempt to maintain isothermal conditions at 105 degree F within the lens cone. It consists of a thermal blanket, a heater film sandwiched between two layers of insulation, and thermostatic controls. Testing was accomplished in natural indoor and outdoor environments, using thermistors to measure temperatures at 14 locations within the system. Tests revealed that temperature differences between different parts of the lens did not exceed 4 degree F in an environment of 33 degree F ambient temperature. This thermal control system is simple, reliable, and relatively inexpensive.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1973
- Accession Number
- AD0771619
Entities
People
- Hugh W. Davis
Organizations
- Air Force Research Laboratory