An optimized optical system for backlit imaging
An optimized optical system for back-illuminated imaging was developed and was applied to automotive-type fuel injectors; the system provides significantly higher light collection efficiency than standard flood illumination. An engineered diffuser is used to distribute an extended light source throu...
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| Veröffentlicht in: | Review of scientific instruments 2009-05, Vol.80 (5), p.056105-056105-3 |
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| container_end_page | 056105-3 |
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| container_issue | 5 |
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| container_title | Review of scientific instruments |
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| creator | Ghandhi, J. B. Heim, D. M. |
| description | An optimized optical system for back-illuminated imaging was developed and was applied to automotive-type fuel injectors; the system provides significantly higher light collection efficiency than standard flood illumination. An engineered diffuser is used to distribute an extended light source through a controlled range of angles, and a field lens is used to redirect the light to the camera. A ray tracing analysis provides the required source size and diffuser angle to ensure that the necessary range of ray angles is included to allow fully diffuse imaging. Direct comparison with a flood illumination system showed that the collection efficiency increased by more than two orders of magnitude without any degradation of image quality. |
| doi_str_mv | 10.1063/1.3128728 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0034-6748 |
| ispartof | Review of scientific instruments, 2009-05, Vol.80 (5), p.056105-056105-3 |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_67310320 |
| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| title | An optimized optical system for backlit imaging |
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