US3636552A
Expired / Lapsed
US
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Optical path selection system
Assignee: Ricoh Co Ltd
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Filing: 1969-08-22
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Granted: 1972-01-18
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Expires: 1989-08-22
Abstract
Abstract An optical path selection system for use in information display or retrieval system wherein backwardly of a character plate having a suitable number of characters arrayed in rows and columns are disposed a plurality of character selection plates each having a plurality of transparent and opaque frames which are arrayed in accordance with the binary codes representing such characters. The number of such character selection plates is the same as that of the bits constituting said codes; and said character selection plates are selectively displaced in either of the row or column direction by a distance corresponding to the width of each frame in response to an instruction given in the form of the codes, thereby opening the optical path only for a selected character in response to the instruction.
Inventors
- 👤 Isamu Orima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:01
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/04; G09G3/045
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
210 words
An optical path system for use in a code-to-character conversion arrangement comprising a lens plate having a front and back side including a plurality of microlenses arrayed in rows and columns; a selected character plate having an array of character frame means mounted on the back side of said lens plate, said character frame means having individual characters marked thereon; a plurality of alignable character selection plates spaced from and facing the back side of said lens plate, the number of characters that can be coded being 2n where n is the number of character selection plates; said character selection plates arrayed in accordance with binary codes each representing each of said characters, the number of said character selection plates being equal to that of bits of said code; each said character selection plate having frame means corresponding in size to said character plate frame means and having a group of at least two subframes, one subframe being transparent and one subframe being opaque; means to individually and selectively displace each character selection plate by a distance corresponding to the width of one subframe; and the alignment of said character selection plates being varied by said displacement to provide an optical path through aligned transparent subframes for a selected character.
Claim 2
Dependent Claim
210 words
An optical path system for use in a code-to-character conversion arrangement comprising a lens plate having a front and back side including a plurality of microlenses arrayed in rows and columns; a selected character plate having an array of character frame means mounted on the back side of said lens plate, said character frame means having individual characters marked thereon; a plurality of alignable character selection plates spaced from and facing the back side of said lens plate, the number of characters that can be coded being 2n where n is the number of character selection plates; said character selection plates arrayed in accordance with binary codes each representing each of said characters, the number of said character selection plates being equal to that of bits of said code; each said character selection plate having frame means corresponding in size to said character plate frame means and having a group of at least two subframes, one subframe being transparent and one subframe being opaque; means to individually and selectively displace each character selection plate by a distance corresponding to the width of one subframe; and the alignment of said character selection plates being varied by said displacement to provide an optical path through aligned transparent subframes for a selected character.
Claim 3
Dependent Claim
33 words
A system according to claim 1 in which a plurality of lens plates are provided, different groups of characters are printed thereon, and said plates are individually selected for incorporation into the system.
Claim 4
Dependent Claim
43 words
A system according to claim 1 in which said displacement means comprises electromagnets positioned respectively on one side of each character selection plate and energizable in response to code instruction, and stopper means are provided to limit the movement of each said plate.
Claim 5
Dependent Claim
59 words
A system according to claim 1 in which said character frames include groupings comprising two subframes each, each subframe being equal and corresponding in size to the subframes of said character selection plate, 16 characters are provided, one each located in one of said character frame subframe groupings, and four character selection plates are provided for the desired alignment.
Claim 6
Dependent Claim
27 words
A system according to claim 4 in which the displacement of each said character selection plate is solely reciprocatory in a direction transversely of said lens plate.
Claim 7
Dependent Claim
61 words
A system according to claim 1 in which each grouping in said character selection plate includes four subframes, each character plate has a plurality of groups comprising four subframes each with one character located in each one of said groups, and the subframes of said character plate being equal and corresponding in size to the subframes of said character selection plate.
Claim 8
Dependent Claim
26 words
A system according to claim 6 in which the displacement of each said character plate is both vertical and horizontal with respect to said lens plate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |