Plane-parallel plate method of laser localization and laser positioning

Karl J. Scheibengraber

doi:10.1117/12.176598

26 May 1994 Plane-parallel plate method of laser localization and laser positioning

Karl J. Scheibengraber

Proceedings Volume 2132, Clinical Applications of Modern Imaging Technology II; (1994) https://doi.org/10.1117/12.176598
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Rotating a plane-parallel glass plate in a laser beam can provide precise sub-millimeter beam translation useful for intraoperative localization and laser positioning. Fine control of beam translation by this method can aid in establishing laser-defined planes of a coordinate system used to locate patient anatomy or to align a stereotactic frame. To implement this method, laser dot or line projectors can be equipped with small motor-driven glass plates at or near their output ports. The author assembled an optical system consisting of a six mm thick crown glass plate, a visible diode laser projector and a 40-step stepper motor. This combination of simple and relatively inexpensive elements produces approximately one-half mm increments of beam translation over a five mm adjustment range. Benefits include fine control and freedom from perturbations caused by contact with adjustment thumbscrews. The addition of infrared remote control would allow easy adjustment of positioning lasers in hard-to-access areas of the operating or treatment room.

Citation Download Citation

Karl J. Scheibengraber "Plane-parallel plate method of laser localization and laser positioning", Proc. SPIE 2132, Clinical Applications of Modern Imaging Technology II, (26 May 1994); https://doi.org/10.1117/12.176598

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available