US3909103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens scan mechanism
Assignee: Xerox Corp
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Filing: 1974-04-18
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Granted: 1975-09-30
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Expires: 1994-04-18
Abstract
Abstract A lens scan mechanism having a scan rate adjustment member which is pivoted about a fixed point. The adjustment member receives its pivoting motion from a drum cam through a spring loaded cable. By providing lenses of different magnification with an attachment which contacts the pivoted adjustment member at different points, adjustment of the lens scan rate is achieved automatically with changes in lens magnification.
Inventors
- 👤 Herbert Kenneth Graves
- 👤 Andrew Paul Bessette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:36
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522; G03B27/525; G03B27/526; G02; G02B; G02B26/00; G02B26/08; G02B26/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
An apparatus for regulating the scan rate of a lens scan system that may use any one of a plurality of lenses having different magnifications, comprising: a pivot member mounted for pivotally rotating about a fixed member; a rotatable member having a surface shaped to provide a desired scanning movement of a selected one of said lenses, lens scan rate adjustment means coupled to said lens and forceably urged against said pivot member, said lens scan adjustment means contacting said pivot member at a first distance from said fixed member when said lens has a first magnification and at a different distance from said pivot point when said lens has a magnification different from said first magnification, and coupling means for transmitting forces from said rotatable member to said pivot member to have said lens move in accordance with the shape of said rotatable member.
Claim 2
Independent Claim
145 words
An apparatus for regulating the scan rate of a lens scan system that may use any one of a plurality of lenses having different magnifications, comprising: a pivot member mounted for pivotally rotating about a fixed member; a rotatable member having a surface shaped to provide a desired scanning movement of a selected one of said lenses, lens scan rate adjustment means coupled to said lens and forceably urged against said pivot member, said lens scan adjustment means contacting said pivot member at a first distance from said fixed member when said lens has a first magnification and at a different distance from said pivot point when said lens has a magnification different from said first magnification, and coupling means for transmitting forces from said rotatable member to said pivot member to have said lens move in accordance with the shape of said rotatable member.
Claim 3
Independent Claim
90 words
A method of controlling the scan rate of the lens assembly of a lens scan system that may use any one of a plurality of lenses having different magnifications, saiD scan system having a pivotally mounted member against which said lens assembly is forceably urged, comprising: adjusting the point at which said lens assembly abuts said pivotally mounted member, lens assemblies of different magnification abutting said pivotally mounted member at different points, and pivoting said pivotally mounted member to cause said lens assembly to move at the desired scan rate.
Claim 4
Independent Claim
90 words
A method of controlling the scan rate of the lens assembly of a lens scan system that may use any one of a plurality of lenses having different magnifications, saiD scan system having a pivotally mounted member against which said lens assembly is forceably urged, comprising: adjusting the point at which said lens assembly abuts said pivotally mounted member, lens assemblies of different magnification abutting said pivotally mounted member at different points, and pivoting said pivotally mounted member to cause said lens assembly to move at the desired scan rate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |