Speckle reduction using phase plate array and lens array
In this paper, a solution for speckle reduction using phase plate array (PPA) and lens array (LA) in a motionless way is proposed. The specially designed PPA is composed of sub-phase plates, which are constituted by phase patterns formed by Hadamard sub-matrices. Each component of the proposed optic...
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Institue of Optics and Electronics, Chinese Academy of Sciences
2020
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/088df685d83b4c6ca62f6aa4de2f4e56 |
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| Sumario: | In this paper, a solution for speckle reduction using phase plate array (PPA) and lens array (LA) in a motionless way is proposed. The specially designed PPA is composed of sub-phase plates, which are constituted by phase patterns formed by Hadamard sub-matrices. Each component of the proposed optical system should satisfy the stated relationships. The incident laser beam will be incoherent after passing through PPA, and superpose on the screen under the action of LA and main lens. Speckle reduction can be achieved by the averaging of the incoherent speckle patterns. Because of abandoning the mechanical movement, it will be suitable for laser displays and images. |
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