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US 6,643,071 B2Granted
Graded-index lens microscopes
AssigneeLucent Technologies Inc.
InventorMark J Schnitzer
Life of this patent
Estimating the term…
Abstract
An optical microscope includes a compound GRIN objective and a lens system. The compound GRIN objective is able to form an image of an object located near one end of the GRIN objective. The compound GRIN objective is configured to limit a lateral field of view for the image to a distance equal to the diameter of the GRIN objective. The lens system is positioned to form a magnified image of an image formed by the compound GRIN objective.
Claims20
An optical microscope, comprising:
- a compound GRIN objective able to form an image of an object located near one end of the GRIN objective, the GRIN objective configured to, at least, limit a lateral field of view for the image to a distance equal to the diameter of the GRIN objective;
- and
- a lens system positioned to form a magnified image of an image formed by the compound GRIN objective.
An apparatus, comprising:
- a lens system;
- and
- a GRIN objective positioned to produce an image that the lens system is able to magnify, the GRIN objective further comprising:
- first and second GRIN lenses that are end-coupled, the first and second GRIN lenses having respective pitches of P1 and P2, the value of P2 being greater than the value of P1, the first GRIN lens having a length in an interval (0, ¼P1] modulo a whole- or half-integer times P1.
1 more element
A method of forming an image, comprising:
- positioning an end of a compound GRIN lens near a portion of a sample;
- forming a focused and low distortion first image of the portion of the sample by transmitting light from the portion of the sample through the compound GRIN lens;
- and
- sending light from the focused first image through an optical system to form a further magnified second image.
1 more element
Dependencies are inferred from the claim text.