| 发明名称 | Distance measurement apparatus and distance measurement method | ||
| 摘要 | A distance measurement apparatus includes: an imaging device which captures an image; a diffractive optical device which diffracts a subject image; an optical system which forms, on the imaging device, the image from the subject image diffracted by the diffractive optical device; and a distance measurement unit which measures a distance to a subject using the image captured by the imaging device. The distance measurement unit measures the distance to the subject based on an interval between diffraction figures of the subject image which are created by the diffractive optical device. The interval is on the image captured by the imaging device. | ||
| 申请公布号 | US9121702(B2) | 申请公布日期 | 2015.09.01 |
| 申请号 | US201113521109 | 申请日期 | 2011.11.07 |
| 申请人 | PANASONIC CORPORATION | 发明人 | Kimura Masayuki |
| 分类号 | H04N7/18;G01C3/06;G01S11/12;H04N5/232;G01B9/02 | 主分类号 | H04N7/18 |
| 代理机构 | Wenderoth, Lind & Ponack, L.L.P. | 代理人 | Wenderoth, Lind & Ponack, L.L.P. |
| 主权项 | 1. A distance measurement apparatus comprising: an imaging device which captures an image; a diffractive optical device which has a curved surface and diffracts a subject image; an optical system which forms, on said imaging device, the image from the subject image diffracted by said diffractive optical device; and a distance measurement unit configured to measure a distance to a subject using the image captured by said imaging device, wherein said distance measurement unit is configured to measure the distance to the subject based on an interval between diffraction figures of the subject image which are created by said diffractive optical device, the interval being on the image captured by said imaging device. | ||
| 地址 | Osaka JP | ||