Abstract:
A device is disclosed for printing on blanks which are intended for swaging, to obtain a predeformed image on the blanks which, following swaging, will reconstitute the original image. The device comprises a light source (2), a toric prism (4) and a camera (8) having a common optical axis (12). The angle of the toric prism is smaller than 42.05.degree., and the surface (11) of the prism facing the camera (8) forms a linearity correction lens.
Abstract:
An optical information processor comprising a semiconductor laser device which has a rectangular light emitting region, a disk, and an optical system which includes a prism for converting a non-circular beam emergent from the laser device into a circular beam, the circular beam being projected onto the disk by the optical system thereby to record or play back predetermined information.
Abstract:
A prismatic anamorphic system for use with an optical correlator. The prismatic anamorphic system incorporates four rotatable prisms arranged within the optical correlator thereby permitting correlator operation about unity magnification with no image rotation and no axial translation as the magnification is varied. In this manner proper correlation of a pair of photographs can be performed in an economical and highly reliable fashion.