Patent ID: 6637882
Filing Date: 2003-10-28
Classification: A61B

Abstract:
An illumination system for an eye viewing device, said illumination system comprising:a filament having a first surface; an apertured glass having second and third surfaces; a wide band hot mirror having fourth and fifth surfaces; a condenser lens having sixth and seventh surfaces; a linear polarizer having eighth and ninth surfaces; a mirror having a tenth surface; and an objective lens having eleventh and twelfth surfaces, wherein said above elements have or are scalable to about the following numerical data: RadiusThicknessAperture RadiusMaterialR1 = âˆžD1 = 4.656AirR2 = âˆžD2 = 1.000000523586R3 = âˆžD3 = 6.120AirR4 = âˆžD4 = 1.000000523586R5 = âˆžD5 = 4.800AirR6 = 10.213177D6 = 6.000000AcrylicR7 = âˆ’11.362687D7 = 24.630AirR8 = âˆžD8 = 0.280000PolarizerR9 = âˆžD9 = 12.620AirR10 = âˆžD10 = 46.600000AirR11 = âˆ’46.500000D11 = 9.500000AcrylicR12 = âˆ’8.509000D12 = 26.500Airwhere R1 to R12 are radii of curvatures of the above surfaces, where D1 to D11, are distances between the surfaces, and wherein said sixth, seventh, and twelfth surfaces are aspheric surfaces defined by: sur-faceccadaeafagS6âˆ’3.2244060000S7âˆ’2.0374970000S12âˆ’2.427960âˆ’0.0002465.3906e-075.1989e-09âˆ’2.8038e-11where cc, ad, ae, af and ag are higher order aspheric coefficients.