Variable area light reflecting assembly

Patent · Tue Dec 23 04:00:00 EST 1986

OSTI ID:7249789

Howard, T C

Device is described for tracking daylight and projecting it into a building. The device tracks the sun and automatically adjusts both the orientation and area of the reflecting surface. The device may be mounted in either a wall or roof of a building. Additionally, multiple devices may be employed in a light shaft in a building, providing daylight to several different floors. The preferred embodiment employs a thin reflective film as the reflecting device. One edge of the reflective film is fixed, and the opposite end is attached to a spring-loaded take-up roller. As the sun moves across the sky, the take-up roller automatically adjusts the angle and surface area of the film. Additionally, louvers may be mounted at the light entrance to the device to reflect incoming daylight in an angle perpendicular to the device to provide maximum reflective capability when daylight enters the device at non-perpendicular angles. 9 figs.

• Research Organization: Synergetics Inc
• DOE Contract Number: AC02-83ER80050
• Assignee: Synergetics, Inc., Raleigh, NC (United States)
• Patent Number(s): A; US 4630892
• Application Number: PPN: US 6-772775
• OSTI ID: 7249789
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
BUILDINGS
DAYLIGHTING
DESIGN
EQUIPMENT
HELIOSTATS
OPERATION
SOLAR CELL ARRAYS
SOLAR COLLECTORS
SOLAR CONCENTRATORS
SOLAR EQUIPMENT
SOLAR REFLECTORS
SOLAR TRACKING
SOLAR TRACKING SYSTEMS
TILT MECHANISMS