Multichannel optical sensing device

Patent · Tue Apr 10 00:00:00 EDT 1990

OSTI ID:7065746

Selkowitz, S E

A multichannel optical sensing device is presented, for measuring the outdoor sky luminance or illuminance or the luminance or illuminance distribution in a room, comprising light receptors, an optical shutter matrix including liquid crystal optical shutter elements operable by electrical control signals between light transmitting and light stopping conditions, fiber optic elements connected between the receptors and the shutter elements, a microprocessor based programmable control unit for selectively supplying control signals to the optical shutter elements in a programmable sequence, a photodetector including an optical integrating spherical chamber having an input port for receiving the light from the shutter matrix and at least one detector element in the spherical chamber for producing output signals corresponding to the light, and output units for utilizing the output signals including a storage unit having a control connection to the microprocessor based programmable control unit for storing the output signals under the sequence control of the programmable control unit.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4915500; A
• Application Number: PPN: US 7-766168A
• OSTI ID: 7065746
• Resource Relation: Patent File Date: 16 Aug 1985
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
MEASURING INSTRUMENTS
FIBER OPTICS
OPTICAL SYSTEMS
COMPUTERIZED CONTROL SYSTEMS
OPTICS
PHOTODETECTORS
CONTROL SYSTEMS
440600* - Optical Instrumentation- (1990-)
990200 - Mathematics & Computers