Elongated rod lens optical system

Details Elongated rod lens optical system Elongated rod lens optical system

G - Physics

02

B

240/82, 88/99

G02B 27/00 (2006.01) A61B 1/002 (2006.01) G02B 3/12 (2006.01) G02B 23/24 (2006.01)

Patent

CA 1058436

Abstract of the Disclosure An optical system for conveying an optical image having two first biconvex rod lenses arranged end to end on a common optical axis in spaced relationship, and between said first rod lenses but not in contact with them a pair of second rod lenses also arranged end to end on the same axis, the adjacent ends of the second rod lenses being concave and de- fining a biconvex cavity which can contain a fluid whereby a fluid lens is formed, the system being substantially sym- metrical about a median plane through a biconvex cavity and the modulus of the reciprocal of the radius of curvature of the fluid lens being less than or equal to the modulus of the difference between the reciprocal of the radius of curvature of the convex surfaces of the first rod lenses adjacent to the second rod lenses and the reciprocal of the radius of curvature of the convex surfaces of the second rod lenses adjacent to the first rod lenses.

251189

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