G - Physics – 02 – B
Patent
G - Physics
02
B
126/11.06
G02B 5/08 (2006.01) F24J 2/10 (2006.01) G02B 19/00 (2006.01)
Patent
CA 1148046
ABSTRACT OF THE DISCLOSURE An ideal or near ideal radiation concentrator for a distant source of radiation or a radiation distributor in which a non-concave linear radiation absorber or source is arranged between facing reflecting side walls to receive radiation reflected from the side walls or to emit radia- tion. One side wall is made up of at least a portion the curvature of which is in accordance with equation (2) set out below and the other side wall includes at least a portion the curvature of which is in accordance with equation (3) set out below; ds = d (? + r) equation (2) Image equation (3) where s is the distance along the perimeter of the cross- section of the (a) absorber or (b) source measured from a point on the line along which said side walls meet to a point P on said one side wall; ds is an incremental change in s according to the conven- tions of mathematical calculus; ? is the distance along an incident light ray path from the edge of said one side wall defining the aperture to the point P; r is the reflected ray path distance from P on said one side wall to a point on a face of the (a) absorber or (b) source opposite said aperture: d (? + r) is an incremental change in the total ray path distance ? + r according to the conventions of mathematical calculus; - 1 - k is a unit vector indicating the limiting direction of the (a) concentrator receptance angle or (b) distributor dis- tribution angle for radiation such that rays incident upon said other side wall at angles of incidence to the surface of the said other side wall less than k will miss the (a) absorber or (b) source upon reflection; and t is a unit vector indicating the direction of a ray which has been reflected once by said other side wall at point P and which strikes the face of the (a) absorber or (b) source facing said aperture tangentially. - la -
336047
Giutronich John E.
Mills David R.
Bereskin & Parr
Unisearch Limited
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