US4717823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detector device having an array of detector elements for scanning a field of view
Assignee: Bodenseewerk Geratetechnik GmbH
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Filing: 1986-02-10
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Granted: 1988-01-05
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Expires: 2006-02-10
Abstract
Abstract In order to scan a rather large field of view quickly, the field of view is imaged, by an imaging optical system, in the plane of a detector having a substantially linear array of detector elements. The path of rays comprises a rotating optically refracting wedge for causing a nutating movement of the image and, coaxial therewith a rotating Dove prism for causing rotation of the image. The wedge and the Dove prism rotate at different rotary speeds.
Inventors
- 👤 Johannes Steimel
- 👤 Hans Kordulla
- 👤 Hans Oppelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:17
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/02; B; B23; B23K; B23K26/00; B23K26/02; B23K26/06; B23K26/064; B23K26/0643; B23K26/0648; B23K26/0652; B23K26/08; B23K26/082; G; G02; G02B; G02B26/00; G02B26/08; G02B26/0875; G02B26/0883; G02B26/0891; G02B27/00; G02B27/64; G02B27/642
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
166 words
Device for scanning a field of view by means of a detector (10) having a substantially linear array of detector elements, and of an imaging and scanning optical system means having movable optical elements, said optical system being adapted to form an image of the field of view in the plane of the detector (10) and to move said image relative to the detector, wherein (a) said imaging and scanning optical system means (12) comprises image rotating means (16) which rotate about an axis of rotation (18) at a first rotary speed (n 2 ) and which are adapted to rotate the image of the field of view at twice this first rotary speed, characterized in that (b) the imaging and scanning optical system means (12) comprises rotating, image deflecting means (14) for generating a nutating movement of the image of the field of view at a second rotary speed (n 1 ), (c) said detector (10) is arranged eccentric to said axis of rotation (18).
Claim 2
Dependent Claim
166 words
Device for scanning a field of view by means of a detector (10) having a substantially linear array of detector elements, and of an imaging and scanning optical system means having movable optical elements, said optical system being adapted to form an image of the field of view in the plane of the detector (10) and to move said image relative to the detector, wherein (a) said imaging and scanning optical system means (12) comprises image rotating means (16) which rotate about an axis of rotation (18) at a first rotary speed (n 2 ) and which are adapted to rotate the image of the field of view at twice this first rotary speed, characterized in that (b) the imaging and scanning optical system means (12) comprises rotating, image deflecting means (14) for generating a nutating movement of the image of the field of view at a second rotary speed (n 1 ), (c) said detector (10) is arranged eccentric to said axis of rotation (18).
Claim 3
Dependent Claim
47 words
Device as claimed in claim 1, characterized in that said imaging and scanning optical system means (12) in addition to said image rotating means (16) and said image deflecting means (14) comprises a separate imaging optical system (20) for forming an image of the field of view.
Claim 4
Dependent Claim
51 words
Device as claimed in claim 1, characterized in that, in the image plane, the radius (r 1 ) of the nutating movement caused by said image deflecting means (14) is equal to the distance (r 2 ) of the radially outermost point of said detector (10) from said axis of rotation.
Claim 5
Dependent Claim
32 words
Device as claimed in claim 1, characterized in that said image rotating means (16) and said image deflecting means (14) are mounted in a housing (28) for rotation about a common axis.
Claim 6
Dependent Claim
46 words
Device as claimed in claim 4, characterized in that one of said image rotating and image deflecting means (16,14) is arranged to be driven by a driving motor (30), and the other one of said means is coupled with said one means through a transmission (32).
Claim 7
Dependent Claim
37 words
Device as claimed in claim 4, characterized in that said image rotating means (16) and said image deflecting means (14) are arranged to be driven independently of each other by first and second driving motors (30,58) respectively.
Claim 8
Dependent Claim
57 words
Device as claimed in claim 5, characterized in that (a) said image rotating means (16) are held in a mount (34) which is rotatably mounted in said housing (28), and (b) said mount (34) carries the rotor of said driving motor (30), the stator (40) of which is supported in said housing and annularly surrounds said mount.
Claim 9
Dependent Claim
79 words
Device as claimed in claim 7, characterized in that (a) said image deflecting means (14) are held in a mount (42) which is rotatably mounted in said housing (28), (b) said mounts (34,42) of said image rotating means and of said image deflecting means (16,14) having gear rings (50,52) at their ends facing each other, and (c) a pair of interconnected pinions (54,56) is rotatably mounted in said housing and mesh with one of these gear rings (50,52) each.
Claim 10
Dependent Claim
116 words
Device as claimed in claim 6, characterized in that (a) said image rotating means (16) are held in a first mount (34) which is rotatably mounted in said housing (28), (b) said first mount (34) carries the rotor of said first driving motor (30) the stator (40) of which is supported in said housing (28) and annularly surrounds said first mount (34), (c) said image deflecting means (14) are held in a second mount (42) which is rotatably mounted in said housing (28), and (d) said second mount (42) carries the rotor of said second driving motor (58) the stator (60) of which is supported in said housing (28) and annularly surrounds said second mount (42).
Claim 11
Dependent Claim
21 words
Device as claimed in claim 4, characterized in that the rotating image deflecting means (14) is an optically refracting wedge (70).
Claim 12
Dependent Claim
20 words
Device as claimed in claim 4, characterized in that the image rotating means (16) is a rotating Dove prism (72).
References Cited (Backward Citations)
US4061415A
Cited
US4407464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-04 | 1991-07-06 | 1992-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-04 | 1995-07-06 | 1996-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-04 | 1999-07-06 | 2000-01-05 | $7700.00 | Window Closed / Lapsed |