Zoom lens compensator for a cylindrical window in laser anemometer uses
| Autor: | Richard G. Seasholtz, Mark P. Wernet |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
Zoom lens business.industry Materials Science (miscellaneous) Distortion (optics) Physics::Optics Window (computing) Astigmatism medicine.disease Laser Industrial and Manufacturing Engineering law.invention Lens (optics) Optics law Anemometer medicine Monochromatic color Business and International Management business |
| Zdroj: | Applied optics. 26(21) |
| ISSN: | 1559-128X |
| Popis: | In laser anemometer systems, the flow fields under study are typically enclosed by a window. Aberration of a flat window can be corrected by a shift of the object distance. A zooming correction lens eliminates the astigmatism caused by a thick cylindrical window and yields diffraction-limited performance for a monochromatic laser anemometer system. The effects of residual anamorphic distortion are discussed, and procedures for correcting these effects are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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