EP1580579A3

Beam homogenizer and laser irradiation apparatus

Abstract

Since the arrangement of the optical elements in the optical system is limited because of their characteristic, designing the optical system for forming the desired laser beam is difficult. An object of the present invention is to design the optical system having the desired function without being affected by the limit in the arrangement of the optical elements. Consequently, an off-axis cylindrical lens array is used as a cylindrical lens array acting on a long-side direction of the beam.

EP1580579A3, drawing sheet 1
Sheet 1 of 2

Term

Term ended

Projected expiry passed 21 March 2025, 1.5 years ago.

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2 sheets

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  2. Sheet 2