Patent US4742483A successfully refreshed from Google Patents.
Patent US3733979A successfully refreshed from Google Patents.
US3733979A
Expired / Lapsed
US
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Photocomposing apparatus
Assignee: Monotype Corp Ltd
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Filing: 1971-07-08
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Granted: 1973-05-22
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Expires: 1991-07-08
Abstract
Abstract Photo-composing apparatus comprising a matrix of master characters, an optical system for forming a light beam bearing images of all the characters in the matrix, a lens for collimating the light beam, a second optical system for directing an image of a selected master character on to a photo-sensitive member, and at least one rotatable scanning mirror disposed in the path of the collimated beam to direct a selectable portion of the collimated beam into the second optical system. The second optical system includes a lens for forming a focused image of the characters in the matrix, in the plane of a mask which has an aperture sufficient to encompass the image of only one character.
Inventors
- 👤 C England
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:48
CPC Classifications
B; B41; B41B; B41B17/00; B41B17/04; B41B21/00; B41B21/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
Photo-composing apparatus comprising a matrix of master characters, an optical system for forming a light beam bearing images of all the characters in the matrix, a collimator for collimating the light beam, a second optical system for directing an image of a selected master character on to a photo-sensitive member, and at least one rotatable scanning mirror disposed in the path of the collimated beam to direct a selectable portion of the collimated beam into the second optical system; the second optical system comprising means for forming a focused image of the characters in the matrix, and means with a limited aperture disposed in the region of the focused image to allow the projection onto the photo-sensitive member of the image of a single selected character, said means with a limited aperture comprising a reflector of such a size to encompass a single character image.
Claim 2
Dependent Claim
145 words
Photo-composing apparatus comprising a matrix of master characters, an optical system for forming a light beam bearing images of all the characters in the matrix, a collimator for collimating the light beam, a second optical system for directing an image of a selected master character on to a photo-sensitive member, and at least one rotatable scanning mirror disposed in the path of the collimated beam to direct a selectable portion of the collimated beam into the second optical system; the second optical system comprising means for forming a focused image of the characters in the matrix, and means with a limited aperture disposed in the region of the focused image to allow the projection onto the photo-sensitive member of the image of a single selected character, said means with a limited aperture comprising a reflector of such a size to encompass a single character image.
Claim 3
Dependent Claim
122 words
Photo-composing apparatus comprising a matrix of master characters, a first optical system for forming a light beam bearing images of all the characters in the matrix, a collimator for collimating the light beam, a second optical system for directing an image of a selected master character on to a photosensitive member and for controlling the selection of the selected master character, at least one rotatable scanning mirror disposed in the path of the collimated beam to direct a selectable portion of the collimated beam into said second optical system, said first optical system comprising a lens, and said scanning mirror being rotatable about an axis along the intersection of the plane of the mirror and the posterior principal plane of said lens.
Claim 4
Dependent Claim
122 words
Photo-composing apparatus comprising a matrix of master characters, a first optical system for forming a light beam bearing images of all the characters in the matrix, a collimator for collimating the light beam, a second optical system for directing an image of a selected master character on to a photosensitive member and for controlling the selection of the selected master character, at least one rotatable scanning mirror disposed in the path of the collimated beam to direct a selectable portion of the collimated beam into said second optical system, said first optical system comprising a lens, and said scanning mirror being rotatable about an axis along the intersection of the plane of the mirror and the posterior principal plane of said lens.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |