Optical: systems and elements – Mirror – Plural mirrors or reflecting surfaces
Reexamination Certificate
2006-01-10
2006-01-10
Shafer, Ricky D. (Department: 2872)
Optical: systems and elements
Mirror
Plural mirrors or reflecting surfaces
C359S855000, C359S865000, C359S900000, C353S003000
Reexamination Certificate
active
06984050
ABSTRACT:
A heliostat5for use in a sunlight concentration system for utilizing sunlight as energy according to this invention has a plurality of small concave mirror elements8and reflects and focuses sunlight reflected off the individual concave mirror elements to a light concentration portion as if upon reflection off a single large concave mirror9. The angles of the concave mirror elements8are changed to define a single concave mirror having a predetermined curvature. When the incident angle of sunlight with respect to the concave mirror is large, the curvature is reduced (like a shallow dish). When the incident angle is small, the curvature is increased (like a deep dish).
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Mitaka Kohki Co. Ltd.
Rader & Fishman & Grauer, PLLC
Shafer Ricky D.
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