Immersion microscope objective

Details Immersion microscope objective Immersion microscope objective

1995-04-12

1997-08-19

Epps, Georgia Y.

Optical: systems and elements

Lens

Microscope objective

359656, G02B 2102

Patent

active

056594259

ABSTRACT:
The invention provides an immersion microscope objective which has a magnification of about 100.times. and a high numerical aperture of the order of 1.65, and is particularly excellent in axial optical properties. The first lens unit G.sub.1 consists of a cemented doublet of a plano-convex lens and a meniscus lens concave on the object side and a positive meniscus lens concave on the object side, three in all; the second lens unit G.sub.2 consists of a cemented triplet of double-convex, double-concave and double-convex lenses; the third lens unit G.sub.3 consists of a cemented doublet of double-convex and double-concave lenses; the fourth lens unit G.sub.4 consists of a cemented doublet of a double-convex lens and a negative meniscus lens concave on the object side; the fifth lens unit G.sub.5 consists of a cemented doublet of double-convex and double-concave lenses; and the sixth lens unit G.sub.6 consists of a cemented doublet of double-concave and double-convex lenses. The lens located on the side proximate to the object has a refractive index of at least 1.6.

REFERENCES:
patent: 3659923 (1972-05-01), Shoemaker
patent: 3700311 (1972-10-01), Shoemaker
patent: 4373785 (1983-02-01), Shoemaker
patent: 4537472 (1985-08-01), Asoma
patent: 5502596 (1996-03-01), Suzuki
patent: 5517360 (1996-05-01), Suzuki
patent: 5530590 (1996-06-01), Saito
patent: 5532878 (1996-07-01), Suenaga

Affiliated with

Also associated with

Rating

Immersion microscope objective does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Immersion microscope objective, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Immersion microscope objective will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1108980