Light pipe - design for efficiency

Conference · Thu Aug 01 00:00:00 EDT 1985 · Energy Technol. (Wash., D.C.); (United States)

OSTI ID:5762635

Hockey, S N

The high cost and availability of materials which are clear enough to transmit light without absorption has limited the idea of piping large-scale quantities of light. The light pipe uses the principle of Total Internal Reflection, with the light guided by very accurate prisms. The transmission of light directed into the end of a Light Pipe at an angle of less than 27.6 degrees is theoretically 100% efficient. The author describes its uses and advantages for lighting offices, cold storage areas, difficult access and hazardous areas, and for solar lighting. Future directions will be to improve the economics and accuracy of the technology. 4 references, 2 figures.

• Research Organization: TIR Systems, Ltd., Vancouver, British Columbia
• OSTI ID: 5762635
• Report Number(s): CONF-850301-
• Journal Information: Energy Technol. (Wash., D.C.); (United States), Vol. 12; Conference: 12. annual energy technology conference and exposition, Washington, DC, USA, 25 Mar 1985
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
14 SOLAR ENERGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
LIGHT PIPES
TECHNOLOGY ASSESSMENT
LIGHT TRANSMISSION
DESIGN
ECONOMICS
LIGHTING SYSTEMS
PRISMS
REFLECTIVITY
ENERGY SYSTEMS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SURFACE PROPERTIES
320100* - Energy Conservation
Consumption
& Utilization- Buildings
141000 - Solar Collectors & Concentrators
657005 - Theoretical Physics- Optics