Patent
Wobble correction and focusing optical element with refractive toroidal surface and binary diffractive optical surface
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TLDR
In this article, a wobble correction and focusing optical element for a raster optical scanner combines a toric lens, which provides most of the optical power for focusing the light beam to a scan line, with a binary diffractive optical surface.Abstract:
A wobble correction and focusing optical element for a raster optical scanner combines a toric lens, which provides most of the optical power for focusing the light beam to a scan line, with a binary diffractive optical surface, which corrects the field curvature of the toric lens and which also linearizes the scan. The diffractive surface will have a multi-level structure (binary diffractive optical surface) which possesses a diffractive phase function that will flatten the field curvature of the toric lens.read more
Citations
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References
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Patent
High-efficiency, multilevel, diffractive optical elements
TL;DR: In this article, a photoresist layer on an optical element substrate is exposed through the first mask and then etched, and the process is repeated for the second and subsequent masks to create a multistep configuration.
ReportDOI
Binary Optics Technology: The Theory and Design of Multi-Level Diffractive Optical Elements
TL;DR: In this paper, the theory, design and fabrication of multi-level diffractive profiles are described in detail, and basic examples illustrate the potential usefulness, as well as the limitations of these elements.
Patent
Wobble correction lens with binary diffractive optic surface and refractive cylindrical surface
TL;DR: In this paper, a plano-cylindrical lens with a diffractive surface is used to flatten the cross-scan field curvature of the plano cylindrical lenses.
Patent
Diffractive optical element
Israel Grossinger,Yossi Kedmi +1 more
TL;DR: In this paper, a diffractive optical element (11) and a method to produce same is disclosed, where the optical element comprises a base (13) and at least first and second phase zones (14) comprising a first multiplicity of steps (22) and the second phase zone (22), respectively.
Journal ArticleDOI
Laser scanning for electronic printing
TL;DR: The use of laser scanning techniques for acquisition and printing of images is reviewed with primary emphasis on the printing application as discussed by the authors, and the integration of these and other components into complete scanning systems is described, including discussion of optical design issues and several examples of practical optical system design for polygon scanners.