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Title: Solar concentrator with integrated tracking and light delivery system with collimation

Patent ·
OSTI ID:1183929

A solar light distribution system includes a solar light concentrator that is affixed externally to a light transfer tube. Solar light waves are processed by the concentrator into a collimated beam of light, which is then transferred through a light receiving port and into the light transfer tube. A reflector directs the collimated beam of light through the tube to a light distribution port. The interior surface of the light transfer tube is highly reflective so that the light transfers through the tube with minimal losses. An interchangeable luminaire is attached to the light distribution port and distributes light inside of a structure. A sun tracking device rotates the concentrator and the light transfer tube to optimize the receiving of solar light by the concentrator throughout the day. The system provides interior lighting, uses only renewable energy sources, and releases no carbon dioxide emissions into the atmosphere.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Batelle, LLC (Oak Ridge, TN)
Patent Number(s):
9,052,452
Application Number:
14/100,063
OSTI ID:
1183929
Country of Publication:
United States
Language:
English

References (13)

Solar energy collection patent February 1981
Light radiator patent April 1988
Small skylight with non-tracking solar collector patent January 2001
Internal natural light delivery system patent January 2002
Concentrating solar energy receiver patent November 2004
Hybrid solar lighting systems and components patent June 2007
Hybrid solar lighting distribution systems and components patent July 2011
Low numerical aperture (low-NA) solar lighting system patent May 2012
Sunlight collection system and apparatus patent February 2013
Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator patent January 2014
Opto-mechanical joint assemblies patent December 2014
Solar Energy Utilization Unit and Solar Energy Utilization System patent-application January 2008
Solar Concentrator System patent-application April 2008