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Proceedings Paper

LiNbO3 rhomboprism machining
Author(s): Yulan Zhang; Jiandong Yang; Jinliang Feng; Yongliang Li
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Paper Abstract

This paper studies the LiNbO3 crystal rohomboprism machining problem, introduces how to select material including initial separation and finish separation and determine optical axis, proposes a method to determine material uniformity according to graph of interference fringes and discussed the technology problems of rough lapping, finish lapping and polishing and some problems should be attended to e.g. temperature, spindle rotating speed, abrasives, hanging method and iris controlling and so on. Some methods for measuring rhomboprism and formula for calculating deviation angle are given. The workpiece machined by the machining technology proposed in this paper surface flatness is 0.1 micrometers , roughness is Ra 0.008 micrometers (P equals III), angle error is 1', parallelism error is 15', which can meet the drawing requirements.

Paper Details

Date Published: 5 August 1998
PDF: 5 pages
Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); doi: 10.1117/12.318305
Show Author Affiliations
Yulan Zhang, Changchun Institute of Optics and Fine Mechanics (China)
Jiandong Yang, Changchun Institute of Optics and Fine Mechanics (China)
Jinliang Feng, Changchun Institute of Optics and Fine Mechanics (China)
Yongliang Li, Changchun Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 3557:
Current Developments in Optical Elements and Manufacturing
Qiming Xin; Robert E. Parks, Editor(s)

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