Affiliation:
1. National Central University
Abstract
A novel design of triple-wavelength design for a compact optical pickup head is
presented here. We propose the use of two rhomboid beam-splitter prisms for HD-DVD, DVD and
CD devices to align signals with three different wavelengths on the same optical axis. The light is
collimated by a collimating lens. The parallel beams are incident on the wavelength selector. The
wavelength selector separates the wavelengths with different numerical apertures. The different
wavelength signals are focused on the disc by an objective lens.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science