US4067639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holographic scanning spinner
Assignee: Xerox Corp
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Filing: 1976-05-27
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Granted: 1978-01-10
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Expires: 1996-05-27
Abstract
Abstract A holographic spinner reconstructs a light spot to rapidly scan a narrow line on a suitable "write" surface to generate an image. The spinner is flexibly mounted to assume a high degree of uniformity in its perpendicularity relative to the axis of spin to minimize spot wobble. Alternatively, the spinner is itself a flexible material or floppy disk. Method of mounting the disk on a shaft using a setting compound during spinner rotation is also disclosed.
Inventors
- 👤 Charles J. Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:51
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/08; G02B26/10; G02B26/106
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
A holographic scanning mechanism, including: a rotatable shaft, a holographic spinner having a holographic facet disposed for rotation with said shaft, an elastically deformable member resiliently connecting said holographic spinner, at the hub thereof, to said shaft, whereby said spinner, under the influence of centrifugal force, straightens to a condition of substantially uniform perpendicularity relative to its axis of rotation when rotating with said shaft.
Claim 2
Dependent Claim
65 words
A holographic scanning mechanism, including: a rotatable shaft, a holographic spinner having a holographic facet disposed for rotation with said shaft, an elastically deformable member resiliently connecting said holographic spinner, at the hub thereof, to said shaft, whereby said spinner, under the influence of centrifugal force, straightens to a condition of substantially uniform perpendicularity relative to its axis of rotation when rotating with said shaft.
Claim 3
Dependent Claim
90 words
A light spot scanning mechanism, including: a rotatable shaft, a hologram having a surface area bearing information for the holographic reconstruction of a spot of light when illuminated by a holographic reconstruction light beam, said hologram being disposed for rotation with said shaft and constituting a holographic spinner, an elastically deformable member resiliently connecting said holographic spinner, at the hub thereof, to said shaft, whereby said spinner, under the influence of centrifugal force, straightens to a substantially perpendicular condition relative to its axis of rotation when rotating with said shaft.
Claim 4
Dependent Claim
90 words
A light spot scanning mechanism, including: a rotatable shaft, a hologram having a surface area bearing information for the holographic reconstruction of a spot of light when illuminated by a holographic reconstruction light beam, said hologram being disposed for rotation with said shaft and constituting a holographic spinner, an elastically deformable member resiliently connecting said holographic spinner, at the hub thereof, to said shaft, whereby said spinner, under the influence of centrifugal force, straightens to a substantially perpendicular condition relative to its axis of rotation when rotating with said shaft.
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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |