Intermediate lens barrel for microscope

Details Intermediate lens barrel for microscope Intermediate lens barrel for microscope

1996-07-10

1998-02-10

Henry, Jon W.

Optical: systems and elements

Compound lens system

Microscope

359431, 359434, 359861, G02B 2104

Patent

active

057175209

ABSTRACT:
An intermediate lens barrel for a microscope, in which an image is formed only once, the direction of the image does not change when returning to the original optical path, and no pupil aberration occurs. In this intermediate lens barrel, assuming that its round optical path is formed by n pieces of reflecting surfaces R (n being an even number not smaller than 4), an intermediate image is formed once in the round optical path, the angle formed by the normal N.sub.1 of the first reflecting surface R.sub.1 and the normal N.sub.2 of the second reflecting surface R.sub.2 with respect to each other when projected onto a plane orthogonal to the optical axis X.sub.1 reflected by the first reflecting surface R.sub.1 is .alpha..sub.1, the angle formed by the normal N.sub.N of the reflecting surface R.sub.N and the normal N.sub.1 of the reflecting surface R.sub.1 with respect to each other when projected onto a plane orthogonal to the optical axis X.sub.N reflected by the reflecting surface R.sub.N is .alpha..sub.N, the relationship:

REFERENCES:
patent: 4189213 (1980-02-01), Iizuka
patent: 4252410 (1981-02-01), Jain
patent: 4650295 (1987-03-01), Terasawa
patent: 4657351 (1987-04-01), Mori
patent: 5191476 (1993-03-01), Sato
patent: 5272564 (1993-12-01), Suzuki et al.
patent: 5325233 (1994-06-01), Nakatsuji et al.
patent: 5331457 (1994-07-01), Hanzawa et al.
Zeiss Catalog, "Variously changeable of the optical path and quantity of light depending on purposes of the microscope", published date unknown, pp. 2-14. (Partial translation).

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