Share Email Print
cover

Proceedings Paper

Design of laser focusing system for laser-microbeam instrument
Author(s): Yanbin Zhu; Junfu Ma
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Recently the laser microbeam instrument has been used for wider applications in biological science and medicine. A key problem of the laser microbeam instrument is designing the laser focusing system for getting a focal spot size of less than 1 micrometer. This paper presents a new laser focusing system which is composed of a spatial filter and an 80X focusing objective lens. The 80X focusing objective lens was designed as a double reflective sphere type. Using this focusing system, the laser microbeam instrument has gotten a focal spot size of less than 0.5 - 1 micrometer. The focal spot size depends on the pinhole diaphragm diameter of the spatial filter. Different pinhole diaphragm diameters could produce different focal spots that are given in the end of this paper.

Paper Details

Date Published: 15 September 1995
PDF: 6 pages
Proc. SPIE 2540, Current Developments in Optical Design and Engineering V, (15 September 1995); doi: 10.1117/12.219511
Show Author Affiliations
Yanbin Zhu, South China Normal Univ. (China)
Junfu Ma, South China Normal Univ. (China)


Published in SPIE Proceedings Vol. 2540:
Current Developments in Optical Design and Engineering V
Robert E. Fischer; Warren J. Smith, Editor(s)

© SPIE. Terms of Use
Back to Top