US4141625A
Expired / Lapsed
US
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Optical system for multiple imaging a linear object
Assignee: Nortel Networks Ltd
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Filing: 1977-11-28
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Granted: 1979-02-27
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Expires: 1997-11-28
Abstract
Abstract An optical system provides a multiple image of a linear object, the images focussed on an image array, with the images displaced both laterally and longitudinally relative to each other, a different section of each image in a contiguous, side-by-side position. The multiple imaging is obtained by a plurality of mirrors in a stacked array, the mirrors each tilted about a first axis and rotated about a second axis, the tilt and rotation increasing progressively from the front mirror. The mirrors each have a predetermined optical transmission characteristic, being a maximum for the front mirror and decreasing progressively to the rearmost mirror.
Inventors
- 👤 Kenneth A. Pickar
- 👤 John S. S. Wei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:13
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/10; G02B27/1066; G02B27/14; G02B27/144; G02B27/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
An optical system for multiple imaging of a linear object, comprising:- a plurality of mirrors positioned in a stacked relationship facing towards an object, each mirror having a predetermined optical transmission characteristic, being a maximum at the front mirror and a minimum at the rear mirror; each mirror tilted about a first axis and rotated about a second axis, said first axis parallel to the axis of the linear object and the second axis normal to the first axis, the first and second axes in a plane normal to the axis of the light path from said object to said mirrors, said mirrors tilted and rotated progressively from the front mirror; an image array laterally displaced from the axis of the light path between the object and the mirrors; and a lens structure positioned between the mirrors and the image array; whereby a multiplicity of images are reflected on to said image array, an image from each mirror, said images laterally and longitudinally displaced, a different section of each image in a contiguous side by side position.
Claim 2
Dependent Claim
177 words
An optical system for multiple imaging of a linear object, comprising:- a plurality of mirrors positioned in a stacked relationship facing towards an object, each mirror having a predetermined optical transmission characteristic, being a maximum at the front mirror and a minimum at the rear mirror; each mirror tilted about a first axis and rotated about a second axis, said first axis parallel to the axis of the linear object and the second axis normal to the first axis, the first and second axes in a plane normal to the axis of the light path from said object to said mirrors, said mirrors tilted and rotated progressively from the front mirror; an image array laterally displaced from the axis of the light path between the object and the mirrors; and a lens structure positioned between the mirrors and the image array; whereby a multiplicity of images are reflected on to said image array, an image from each mirror, said images laterally and longitudinally displaced, a different section of each image in a contiguous side by side position.
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) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |