| 发明名称 | Optical element and image sensor | ||
| 摘要 | An optical element includes a refractive index pattern that is periodically formed by a plurality of media having refractive indices different from each other. The highest diffraction order for a light beam of a first wavelength region that enters the optical element is greater than the highest diffraction order for a light beam of a second wavelength region that is longer than the first wavelength region, and the light beams of the first wavelength region and the second wavelength region are emitted so that each of the light beams of the first wavelength region and the second wavelength region is periodically localized. | ||
| 申请公布号 | US9035230(B2) | 申请公布日期 | 2015.05.19 |
| 申请号 | US201213434966 | 申请日期 | 2012.03.30 |
| 申请人 | CANON KABUSHIKI KAISHA | 发明人 | Hakko Manabu |
| 分类号 | H01J40/14;G02B3/00;H01L27/146;H01L31/0216 | 主分类号 | H01J40/14 |
| 代理机构 | Rossi, Kimms & McDowell LLP | 代理人 | Rossi, Kimms & McDowell LLP |
| 主权项 | 1. An optical element comprising: a refractive index pattern that is periodically formed by a plurality of media having refractive indices different from each other, wherein the highest diffraction orders for at least three light beams of wavelength regions that enter the optical element are different from each other, and wherein the light beams of the wavelength regions are emitted so that each of the light beams of the wavelength regions is periodically localized. | ||
| 地址 | JP | ||