Ultracompact backlight-reversed concentration optics
| Autor: | Ming Chin Chien, Yu Lung Tung, Chung-Hao Tien |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
business.product_category
Light Materials Science (miscellaneous) Backlight Sensitivity and Specificity Industrial and Manufacturing Engineering Collimated light law.invention Optics Electric Power Supplies law Solar Energy Scattering Radiation Business and International Management Nonimaging optics Lenses Physics Coupling Liquid-crystal display Miniaturization business.industry Reproducibility of Results Equipment Design Solar energy Aspect ratio (image) Wedge (mechanical device) Equipment Failure Analysis Computer-Aided Design business |
| Zdroj: | Applied optics. 48(21) |
| ISSN: | 1539-4522 |
| Popis: | We demonstrate a concentration scheme based on a reversed tracing concept utilizing a conventional sidelit backlighting configuration. The optical arrangement consists of a groove sheet and a wedge plate without any coating or surface treatment. The proposed layout simultaneously exhibits two main features: coupling the collimated solar radiance into a wedge plate and guiding the flux to the exit plane of the wedge plate for use in direct daylight. The measurement revealed an optical efficiency of 52% in conjunction with an inverse aspect ratio of 9.51. In addition to the two-dimensional sidelit scheme, the proposed structure can also be rotationally convolved and extended to a three-dimensional solar concentrator with a high concentration ratio, which will certainly have an impact on solar energy and other optical functions because of its simplicity and versatility. |
| Databáze: | OpenAIRE |
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