| 发明名称 | Optical see-through free-form head-mounted display | ||
| 摘要 | A see-through free-form head-mounted display including a wedge-shaped prism-lens having free-form surfaces and low F-number is provided. | ||
| 申请公布号 | US9207443(B2) | 申请公布日期 | 2015.12.08 |
| 申请号 | US201314010956 | 申请日期 | 2013.08.27 |
| 申请人 | BEIJING INSTITUTE OF TECHNOLOGY;THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA | 发明人 | Cheng Dewen;Hua Hong;Wang Yongtian |
| 分类号 | G02B3/02;G02B27/12;G02B17/08;G03B21/00 | 主分类号 | G02B3/02 |
| 代理机构 | Dann Dorfman Herrell & Skillman, PC | 代理人 | Haun Niels;Dann Dorfman Herrell & Skillman, PC |
| 主权项 | 1. A free-form prism-lens for use in an optical see-through head-mounted display, comprising: a first free-form surface configured to receive light from a micro-display and configured to transmit the received light into the body of the prism-lens; a second free-form surface configured to receive the light transmitted into the body of the prism-lens from the first free-form surface and configured to totally internally reflect the received light at the second surface; and a third free-form surface configured to receive the light reflected by the second free-form surface and configured to reflect the light out of the prism-lens, wherein the prism-lens has an f-number less than 3.5 and an effective focal length of 21 mm or less, wherein the exit pupil diameter is at least 6 mm. | ||
| 地址 | CN | ||