Tip optical element for immersion microscope objectives

Details Tip optical element for immersion microscope objectives Tip optical element for immersion microscope objectives

2006-04-25

2006-04-25

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Lens

Microscope objective

C359S656000, C359S740000

Reexamination Certificate

active

07035016

ABSTRACT:
A tip optical element for immersion microscope objectives is constructed so that a first optical element and a second optical element are cemented to each other, and has an annular light-blocking area on a surface of one of the first optical element and the second optical element to be cemented. The tip optical element is fabricated in such a way that a beam restricting device is placed on a surface of one of the first optical element and the second optical element; a light-transmitting area transmitting an effective beam and the light-blocking area formed around the light-transmitting area are provided to the beam restricting device; and the first optical element and the second optical element are cemented to each other, with the beam restricting device sandwiched between them.

REFERENCES:
patent: 4354734 (1982-10-01), Nakahashi
patent: 5995295 (1999-11-01), Nagaoka
patent: 5999327 (1999-12-01), Nagaoka
patent: 6134056 (2000-10-01), Nakamuka
patent: 4-46416 (1992-04-01), None

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