A High-Capacity Digital Light Deflector Using Wollaston Prisms

Tabor, W. J.

doi:10.1002/j.1538-7305.1967.tb01722.x

Cited by 14 publications

(5 citation statements)

References 10 publications

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“…Measurements showed the beam to be broadened by 5 percent. This is in contrast to solid-state deflectors where a resolution deterioration due to inhomogeneities by a factor of up to 8 has been observed [21].…”

Section: B Deflectors Using Kerr Effect Liquidsmentioning

confidence: 84%

Electrooptic materials for digital light beam deflectors

Pepperl

Schmidt

1973

Proc. IEEE

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The technology of digital deflectors made -cant progress in the past. The success of this development was primarily based on the advances made in the preparation of electrooptic mate& The selection criteria are described here for a material suitt able for the particular application under consideration, and a survey is made of the most promising electroopticmaterials, both solid state and liquid. The list of solid-state materials comprises representatives of the class of oxygen octahedra ferroelectrics, KDP isomorphs, and AR-type compounds. A section on Kerr liquids begins with c d e r ations for the optimization of the molecular structure and gives experimental results on some newly synthesized materials. Further, the impurity conduction phenomena that are important to the technical performance are described in detail. The fhal section reviews the present state of digital deflector development.

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Section: B Deflectors Using Kerr Effect Liquidsmentioning

confidence: 84%

Electrooptic materials for digital light beam deflectors

Pepperl

Schmidt

1973

Proc. IEEE

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“…The measure to prevent this is to use several prisms of smaller refracting angle in each 3O stage. Forms of such multi-element birefringent prisms have been described by several authors [3,4,5]. Fortunately, a closer inspection of the question of the magnitude of the refracting angles in a deflector reveals that angles which make the above type of aberration annoying have to be used only in deflectors with resolutions in excess of at least 1024 • 1024 points.…”

Section: System Considerations: Multielement Vs Singlelelement Prismsmentioning

confidence: 97%

Temperature stabilisation of the deflection pattern of a digital light deflector containing single prisms

Schmidt

Thust

1970

Opto-electronics

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When using nitrobenzene Kerr cells and single element birefringent prisms in digital light deflectors one encounters the problem that the deflection pattern moves with a change of the operating temperature of the system. This paper describes how, by inverting the prism with the largest refracting angle, this effect can be eliminated while retaining the advantages offered by single element prisms. The operating temperature range is now of the order of 10 ~ C compared with approximately 0.07 ~ C for the conventional system.

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“…(3) All the input signals with arbitrary polarizations can be transmitted to the pair of outputs (1,2) or (3,4); simultaneously, input signals with orthogonal polarizations can be transmitted to the pair of outputs (3,4) or (1,2), respectively. (Other input pairs, for example (2,3) and (1,4) According to its interconnection properties, it comprises a group selector (see Fig.4) allowing the connection of any R1= N/2 inputs to any R0 (N/2R0tN) outputs by the time-sharing method within two time slots at maximum.…”

Section: Nonbiocking Interconnection Networkmentioning

confidence: 99%

“…However, Wollaston prisms insert significant aberrations and background radiation [4,5] to images being transmitted. Hence, they cannot be applied for multistage interconnection networks (MIN) in case images have a large number of pixels.…”

Section: Introductionmentioning

confidence: 99%