Optical: systems and elements – Mirror – Plural mirrors or reflecting surfaces
Reexamination Certificate
2005-06-21
2009-06-30
Shafer, Ricky D (Department: 2872)
Optical: systems and elements
Mirror
Plural mirrors or reflecting surfaces
C359S853000, C359S858000, C359S859000, C359S847000
Reexamination Certificate
active
07553035
ABSTRACT:
A coordinate system defines the length of the curve of a parabola used in constructing a parabolic trough reflector. The origin (0,0) of the coordinate system is at the bottom center of the coordinate system. The two upper points of the coordinate system define the width, height of the parabola. These points are defined as (X1,Y1)=(−width,height), and (X2,Y2)=(width,height). The equation defining the parabola is f(x)=a·x2, where a=height/width2. The plot of this equation produces a parabola that fits into the coordinate system. Two small blocks are used as anchor points for the ends of the parabola. The length of the curve of the parabola is defined in the equation:in-line-formulae description="In-line Formulae" end="lead"?length(x)=a·[x·(x√{square root over (x2+b2)})+b2·ln(x+√{square root over (x2+b2)})]in-line-formulae description="In-line Formulae" end="tail"?where b=½·a.An inexpensive trough reflector is constructed out of flexible material. It is used to build a much more complicated six reflector system to concentrate parallel radiation like sunlight much like a magnifying glass. This system also forms the basis for building a much more powerful telescope.
REFERENCES:
patent: 2664026 (1953-12-01), Kavanagh
patent: 2916966 (1959-12-01), Nomarski et al.
patent: 3966308 (1976-06-01), Nilson
patent: 4087682 (1978-05-01), Kolodziej
patent: 4092979 (1978-06-01), Kotlarz
patent: 4135493 (1979-01-01), Kennedy
patent: 4256091 (1981-03-01), Pier St.
patent: 4268332 (1981-05-01), Winders
patent: 4273425 (1981-06-01), Canzek
patent: 4513357 (1985-04-01), Nieda et al.
patent: 4835380 (1989-05-01), Opheij et al.
patent: 5964216 (1999-10-01), Hoffschmidt et al.
patent: WO 01/02780 (2001-01-01), None
Klemchuk Kubasta LLP
Shafer Ricky D
Taber Keith E.
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