发明名称 |
Optically based planar scanner |
摘要 |
Apparatus and methods for providing an optically based planar scanner for generating an image are provided. In one embodiment, the apparatus includes a switchable Bragg grating. An area of the switchable Bragg grating is configured to be activated to direct light to a platen. The platen is configured to reflect the light to a waveguide or to refract the light. The light reflected to the waveguide is guided to a light detector. By activating a number of the areas of the switchable Bragg grating and measuring the intensity of the light with a light detector, an image of an object contacting the platen may be formed.
|
申请公布号 |
US8354640(B2) |
申请公布日期 |
2013.01.15 |
申请号 |
US20100878535 |
申请日期 |
2010.09.09 |
申请人 |
IDENTIX INCORPORATED;HAMRE JOHN D.;MAASE DANIEL F. |
发明人 |
HAMRE JOHN D.;MAASE DANIEL F. |
分类号 |
G02F1/295;G01J5/08 |
主分类号 |
G02F1/295 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|