发明名称 |
Apparatus for dental surface shape and shade imaging |
摘要 |
An intra-oral imaging apparatus having an illumination field generator that forms an illumination beam having a contour fringe projection pattern when receiving light from a first light source and having a substantially uniform illumination field when receiving light from a second light source. A polarizer in the path of the illumination beam has a first polarization transmission axis. A projection lens directs the polarized illumination beam toward a tooth surface and an imaging lens directs at least a portion of the light from the tooth surface along a detection path. A polarization-selective element disposed along the detection path has a second polarization transmission axis. At least one detector obtains image data from the light provided through the polarization-selective element. A control logic processor responds to programmed instructions for alternately energizing the first and second light sources in a sequence and obtaining both contour fringe projection data and color image data.
|
申请公布号 |
US8570530(B2) |
申请公布日期 |
2013.10.29 |
申请号 |
US20090477160 |
申请日期 |
2009.06.03 |
申请人 |
LIANG RONGGUANG;CARESTREAM HEALTH, INC. |
发明人 |
LIANG RONGGUANG |
分类号 |
G01B11/24 |
主分类号 |
G01B11/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|