发明名称 |
Display device using coherent light beam and vehicle based thereon |
摘要 |
A display device includes: a light source configured to generate a coherent light beam; and an optical plate including a plurality of microlenses arranged with a period larger than the diameter of the light beam, the optical plate being configured to control the divergence angle of the light beam. |
申请公布号 |
US9121987(B2) |
申请公布日期 |
2015.09.01 |
申请号 |
US200812323818 |
申请日期 |
2008.11.26 |
申请人 |
Kabushiki Kaisha Toshiba |
发明人 |
Horiuchi Kazuo;Okada Naotada;Okumura Haruhiko;Sasaki Takashi |
分类号 |
G02B27/10;G02B3/00;H04N9/31;G02B27/14;G02B27/18;G02B27/48;G02B26/10 |
主分类号 |
G02B27/10 |
代理机构 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
代理人 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
主权项 |
1. A display device comprising:
a light source configured to generate a light beam being coherent and having a diameter that incorporates all of the light from the light source; an optical plate including a plurality of microlenses arranged with a period larger than the diameter of the light beam, the optical plate being configured to control a divergence angle of the light beam; a scanning section configured to scan the light beam in a surface of the optical plate; and a controller connected to synchronize the light source with the scanning section, the plurality of microlenses including a first microlens and a second microlens adjacent to the first microlens, the light beam being configured to pass the first microlens and not to pass the second microlens in a first period of time, the light beam being configured to pass the second microlens and not to pass the first microlens in a second period of time, and the light source being configured not to generate the light beam in a period of time between the first period of time and the second period of time. |
地址 |
Tokyo JP |