| 摘要 |
A focus spot size controller for a variable depth triangulation ranging system, the ranging system including apparatus for emitting light beam to be focused onto an object, light sensitive apparatus, lens apparatus for imaging reflected light onto said light sensitive apparatus, and apparatus for calculating system geometry and range from signals received from the light sensitive apparatus. The present invention includes a focus spot size controller for receiving the light beam from the light beam emitting apparatus and for focusing the light beam into a focused spot on an object, the controller positioning the focused spot axially to achieve sufficient focus spot size for imaging.
|
