| Presentation | 1999/6/24 Design of light balancing filters using liquid crystal for image pickup Jun YONAI, Hideo FUJIKAKE, Tahito AIDA, Hiroshi KIKUNHI, Masahiro KAWAKITA, Kuniharu TAKIZAWA, Kenichi IWASHITA, Shinya UMEDA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We developed a liquid crystal filter containing dichroic dyes, which continuously control color temperature of the transmitted light in real time. The filter was designed and fabricated based on Planck radiation law and Lambert-Beer's law, as a result, it exhibited the conversion range of color temperature form 2530K to 4450K, which was equivalent to that of a conventional color glass filter, and response time of 80 ms. It is confirmed that the color valance of pickup image could be corrected using a camera with the filter. This filter is especially useful for television location shooting in which illumination light source changes from incandescent lamp to solar light and the color temperature of the illumination varies. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Light balancing filter / Liquid crystal / Dichroic dye / Planck radiation law / Lambert-Beer's law / Image pickup |
| Paper # | EID99-8 |
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| Conference Information | |
| Committee | EID |
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| Conference Date | 1999/6/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Electronic Information Displays (EID) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of light balancing filters using liquid crystal for image pickup |
| Sub Title (in English) | |
| Keyword(1) | Light balancing filter |
| Keyword(2) | Liquid crystal |
| Keyword(3) | Dichroic dye |
| Keyword(4) | Planck radiation law |
| Keyword(5) | Lambert-Beer's law |
| Keyword(6) | Image pickup |
| 1st Author's Name | Jun YONAI |
| 1st Author's Affiliation | NHK Sciene & Technical Research Laboratories() |
| 2nd Author's Name | Hideo FUJIKAKE |
| 2nd Author's Affiliation | NHK Sciene & Technical Research Laboratories |
| 3rd Author's Name | Tahito AIDA |
| 3rd Author's Affiliation | NHK Sciene & Technical Research Laboratories |
| 4th Author's Name | Hiroshi KIKUNHI |
| 4th Author's Affiliation | NHK Sciene & Technical Research Laboratories |
| 5th Author's Name | Masahiro KAWAKITA |
| 5th Author's Affiliation | NHK Sciene & Technical Research Laboratories |
| 6th Author's Name | Kuniharu TAKIZAWA |
| 6th Author's Affiliation | NHK Sciene & Technical Research Laboratories |
| 7th Author's Name | Kenichi IWASHITA |
| 7th Author's Affiliation | NHK Nagoya station |
| 8th Author's Name | Shinya UMEDA |
| 8th Author's Affiliation | NHK Nagoya station |
| Date | 1999/6/24 |
| Paper # | EID99-8 |
| Volume (vol) | vol.99 |
| Number (no) | 143 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |