| 发明名称 | Electronic color-chart device | ||
| 摘要 | An electronic color-chart device includes plural LEDs with different peak wavelengths and displays images to serve as color references as color charts by making the plural LEDs emit light. In a case where a light emission intensity distribution of each of the plural LEDs is normalized with a maximum intensity being a value of 1, the plural LEDs include plural first LEDs of which at least one is an LED whose full wavelength width at half maximum intensity is 40 nm or narrower and between which a peak interval is 50 nm or narrower and a second LED whose light emission intensity at a wavelength of 555 nm is 0.4 or higher, and whose full wavelength width at half maximum intensity is wider than 40 nm. | ||
| 申请公布号 | US9368692(B2) | 申请公布日期 | 2016.06.14 |
| 申请号 | US201314428133 | 申请日期 | 2013.09.10 |
| 申请人 | SHARP KABUSHIKI KAISHA;NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY | 发明人 | Tomizawa Kazunari;Shimodaira Yoshifumi |
| 分类号 | F21V9/00;H01L33/50;G01J3/52;G01J3/02;G01J3/10;F21K99/00;H05B33/08;F21Y101/02 | 主分类号 | F21V9/00 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. An electronic color-chart device that includes plural LEDs with different peak wavelengths and displays images to serve as color references as color charts by making the plural LEDs emit light, wherein in a case where a light emission intensity distribution of each of the plural LEDs is normalized with a maximum intensity being a value of 1, the plural LEDs include plural first LEDs of which at least one is an LED whose full wavelength width at half maximum intensity is equal to or less than 40 nm and between which a peak interval is equal to or less than 50 nm, anda second LED whose light emission intensity at a wavelength of 555 nm is 0.4 or higher and whose full wavelength width at half maximum intensity is wider than 40 nm. | ||
| 地址 | Osaka JP | ||