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US 4,067,639 AGranted
Holographic scanning spinner
AssigneeXerox Corporation
InventorCharles J. Kramer
Life of this patent
Estimating the term…
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.
Claims2
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.
1 more element
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.
2 more elements
Dependencies are inferred from the claim text.