Ellipsoid-conic radiation collector and method
First Claim
1. A radiation collector apparatus for analyzing individually isolated particulate material by illuminating the particulate material to produce a source of detectable radiation, comprising:
- a reflector chamber including a first reflector surface and a second reflector surface,said first reflector surface having a substantially ellipsoidal configuration with a first focus and a second focus defining a first symmetry axis,said first reflector surface having said first focus disposed at the source of detectable radiation,said second reflector surface having a primary focus and a secondary focus defining a second symmetry axis,said second reflector surface having said primary focus disposed at said second focus of said first reflector surface,said first symmetry axis being disposed in angled relationship with respect to said second symmetry axis,whereby detectable radiation converged toward said second focus of said first reflector surface is reflected by said second reflector surface in an organized beam without significant stray light for further processing and analysis.
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Accused Products
Abstract
Disclosed is a radiation collector apparatus and method primarily for counting and analyzing a flow of dilute particulate material, such as blood cells, sperm cells and the like, through the use of light detection. The radiation collector apparatus comprises a reflector chamber having an ellipsoidal reflector surface with a pair of elipsoidal foci defining a first focus, f11, and second focus, f12, and a second reflector surface with a primary focus, f21, positioned at the same point as focus f12, and a secondary focus, f22. The second reflector surface has the configuration of one of the conic sections of revolution. In operation the radiation collector apparatus is provided with an intensifed beam of light and a stream of particulate material aligned to intersect the intensifed beam of light at focus f11. Detectable light signals, after two reflections, are received in a focused beam by a photosensitive detector.
88 Citations
15 Claims
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1. A radiation collector apparatus for analyzing individually isolated particulate material by illuminating the particulate material to produce a source of detectable radiation, comprising:
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a reflector chamber including a first reflector surface and a second reflector surface, said first reflector surface having a substantially ellipsoidal configuration with a first focus and a second focus defining a first symmetry axis, said first reflector surface having said first focus disposed at the source of detectable radiation, said second reflector surface having a primary focus and a secondary focus defining a second symmetry axis, said second reflector surface having said primary focus disposed at said second focus of said first reflector surface, said first symmetry axis being disposed in angled relationship with respect to said second symmetry axis, whereby detectable radiation converged toward said second focus of said first reflector surface is reflected by said second reflector surface in an organized beam without significant stray light for further processing and analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification