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US4373780A
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Image transmitting system utilizing a gradient index lens
Assignee: Xerox Corp
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Filing: 1980-06-16
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Granted: 1983-02-15
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Expires: 2000-06-16
Abstract
Abstract A gradient index lens array is formed by assembling a plurality of gradient index fibers into a single row. The fiber parameters and fiber-to-fiber spacing are optimized to provide required illumination level while minimizing illumination spatial modulation.
Inventors
- 👤 William L. Lama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:22
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522; G03B27/525
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
An optical imaging system including a plurality of gradient index fibers combined into at least a single row to form a lens array, said array positioned between an object and image plane so as to transmit light reflected from an object onto said image plane thereby exposing at least a portion of said image plane, said array characterized by producing said exposure with a minimum amount of spatial modulation by optimum selection of a fiber spacing factor b defined by the term ##EQU8## wherein A=gradient index constant of the fiber L=fiber length M=1,2=number of rows of fibers S=1, 2, 3 . . .
Claim 2
Dependent Claim
103 words
An optical imaging system including a plurality of gradient index fibers combined into at least a single row to form a lens array, said array positioned between an object and image plane so as to transmit light reflected from an object onto said image plane thereby exposing at least a portion of said image plane, said array characterized by producing said exposure with a minimum amount of spatial modulation by optimum selection of a fiber spacing factor b defined by the term ##EQU8## wherein A=gradient index constant of the fiber L=fiber length M=1,2=number of rows of fibers S=1, 2, 3 . . .
Claim 3
Dependent Claim
104 words
An optical imaging system including a plurality of gradient index fibers combined into at least a single row to form a lens array, said array positioned between an object and image plane so as to transmit light reflected from an object onto said image plane thereby irradiating at least a part of said image plane, said array characterized by producing a relatively uniform level of irradiance on said image plane by selection of an optimum fiber spacing factor b defined for a single row array by the term ##EQU9## where A=gradient index constant of the fiber L=fiber length S=1, 2, 3 . . .
Claim 4
Dependent Claim
104 words
An optical imaging system including a plurality of gradient index fibers combined into at least a single row to form a lens array, said array positioned between an object and image plane so as to transmit light reflected from an object onto said image plane thereby irradiating at least a part of said image plane, said array characterized by producing a relatively uniform level of irradiance on said image plane by selection of an optimum fiber spacing factor b defined for a single row array by the term ##EQU9## where A=gradient index constant of the fiber L=fiber length S=1, 2, 3 . . .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |