Patent US3590712A successfully refreshed from Google Patents.
US3590712A
Expired / Lapsed
US
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Multiphotographic device
Assignee: Ricoh Co Ltd
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Filing: 1968-09-19
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Granted: 1971-07-06
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Expires: 1988-09-19
Abstract
Abstract A multiphotographic device comprising a first objective lens, a second lens comprised of a microlens group and an aperture disposed within, forwardly or backwardly of said first lens; said aperture being adapted to be formed by the intersection of two elongated slots at right angles with respect to each other, said elongated slot being provided in each of a pair of movable plates which are movable in the directions at right angle with respect to each other, alternatively said aperture being selected by said two elongated slots.
Inventors
- 👤 Hisanori Ataka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:08
CPC Classifications
G; G03; G03B; G03B15/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
201 words
A multiphotographic device comprising: a first lens; a second lens having a microlens group spaced from said first lens; means forming an aperture located closely adjacent said first lens and between said first and second lenses; photosensitIve material located closely adjacent said second lens on the side remote from said first lens; said first lens and aperture producing an inverted image between said first and second lenses, and said second lens producing a reinverted image through individual lenses of said group focused on said photosensitive material; said aperture forming means comprising: a first flat element positioned to move transversely of said first lens; said first element having an elongated slot formed therein, said elongated slot extending at right angles to the direction of movement of said first element; a second flat element positioned to move at right angles with respect to said first element; said second element having at least one elongated slot formed therein, said elongated slot extending at right angles to the direction of movement of said second element; and said aperture being formed by overlap of portions of said elongated slots, the shape of said aperture in right angle dimensions being determined by the width of each slot.
Claim 2
Dependent Claim
201 words
A multiphotographic device comprising: a first lens; a second lens having a microlens group spaced from said first lens; means forming an aperture located closely adjacent said first lens and between said first and second lenses; photosensitIve material located closely adjacent said second lens on the side remote from said first lens; said first lens and aperture producing an inverted image between said first and second lenses, and said second lens producing a reinverted image through individual lenses of said group focused on said photosensitive material; said aperture forming means comprising: a first flat element positioned to move transversely of said first lens; said first element having an elongated slot formed therein, said elongated slot extending at right angles to the direction of movement of said first element; a second flat element positioned to move at right angles with respect to said first element; said second element having at least one elongated slot formed therein, said elongated slot extending at right angles to the direction of movement of said second element; and said aperture being formed by overlap of portions of said elongated slots, the shape of said aperture in right angle dimensions being determined by the width of each slot.
Claim 3
Dependent Claim
51 words
Device according to claim 1, in which said elongated slot in said first element extends in a vertical direction, said elongated slot in said second element extends in a horizontal direction, the width of each slot is equal to the width of the other, and the aperture has a square shape.
Claim 4
Dependent Claim
85 words
Device according to claim 2, in which said first element comprises a plate moving horizontally in step by step equal increments and being held stationary in an individual step position as said second element which comprises a plate is movable from an initial position vertically downward in step by step equal increments until the overlap is at the lowermost end of said vertical slot, said second plate thereupon moving vertically upward to said initial position while said first plate moves to its next step position.
Claim 5
Dependent Claim
40 words
Device according to claim 2, in which said second element is a flexible belt having a plurality of elongated slots formed therein, said slots being parallel and spaced apart a distance substantially equal to the length of said vertical slot.
Claim 6
Dependent Claim
56 words
Device according to claim 2, in which a fixed plate is provided having rows of apertures, the individual moving apertures formed by the overlap of said elongated slots being selectively alignable with each one of said fixed apertures, and the size of each fixed aperture being slightly smaller than the size of each overlapped moving aperture.
References Cited (Backward Citations)
US2420339A
Cited
US2950644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |