Optical beam splitters

Details Optical beam splitters Optical beam splitters

1984-06-11

1985-09-17

Henry, Jon W.

350433, 350447, 350 11, 350276R, G02B 2710, G02B 1700

Patent

active

045416885

ABSTRACT:
An optical beam splitter is provided which removes aberrations such as coma and transverse chromatic aberration by subjecting all transmitted rays to equal and opposite amounts of induction of coma and transverse chromatic aberration, by curing residual astigmatism by providing a terminal astigmatism correcting lens in each transmitted ray path, and by avoiding ghost images by ensuring adequate separation between the main image and any ghost images. The splitter thus permits the use of high resolution, low sensitivity, linear charge coupled devices in image analysis.

REFERENCES:
patent: 2669900 (1954-02-01), Cherry
patent: 2672502 (1954-03-01), Albright
patent: 2740832 (1956-04-01), Andrews
patent: 2792740 (1957-05-01), Haynes
patent: 3794407 (1974-02-01), Nishimura
patent: 4003634 (1977-01-01), Graser et al.

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