Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Patent
1996-12-20
1998-08-18
Epps, Georgia Yvonne
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
359740, G02B 2710
Patent
active
057965226
ABSTRACT:
A lenslet array system for imaging an associated object onto a final image plane includes (i) a first assembly including a baffle structure and a first lenslet array having an associated image plane and (ii) a second assembly including a second lenslet array.
The first lenslet array accepts a full field of view subtends by the associated object and forms a plurality of image sections of the associated object on an intermediate image plane. The first lenslet array includes a plurality of positive power lenslets, each of the plurality of lenslets having a focal length f.sub.1 and accepting a unique segment of the full field of view subtended by the associated object. These segments of the full field of view together comprise the full field of view, and each of the lenslets forms one image section corresponding to its segment of the full view.
The baffle structure includes (1) a baffle plate having multiple opening aligned with respective lenslets of the first lenslet array, (2) a field limiting plate located at the intermediate image plane and having opaque areas and a plurality of apertures, and (3) a plurality of baffle walls extending between the lenslets of the first lenslet array and the field limiting plate.
The second assembly includes a second lenslet array having a plurality of positive power lenslets. Each of the lenslets of the second lenslet array (a) reimages one of the image sections located at the intermediate image plane and creates an inverted image of the image section on the final image surface, and (b) together with other lenslets of the rear lenslet array creates an image of the associated object.
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patent: 5270859 (1993-12-01), Wirth et al.
patent: 5418583 (1995-05-01), Masumoto
patent: 5550656 (1996-08-01), Sprague et al.
patent: 5636056 (1997-06-01), Itonaga et al.
Bey Dawn-Marie
Eastman Kodak Company
Epps Georgia Yvonne
Short Svetlana Z.
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