Concentrated-beam illumination

Details Concentrated-beam illumination Concentrated-beam illumination

1984-09-24

1986-04-01

Corbin, John K.

G02B 2106

Patent

active

045794294

ABSTRACT:
An illuminator for microscopes consisting of a light source, five mirrors and two conical beam concentrators mounted in the base of the microscope. Three intensities of illumination are possible; low intensity of a 50 mm beam emitted by an incandescent bulb, high intensity of the beam reduced to 10 mm diameter by the first beam concentrator, and very high intensity of the beam reduced to 2 mm diameter by the second beam concentrator.

REFERENCES:
patent: 3736041 (1973-05-01), McArthur
patent: 4148552 (1979-04-01), Suzuki et al.
patent: 4241251 (1980-12-01), Yonekubo
patent: 4277148 (1981-07-01), Clegg
patent: 4333713 (1982-06-01), Clegg
patent: 4469411 (1984-09-01), Clegg
patent: 4521085 (1985-06-01), Clegg

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