Title :
DVD/CD/CD-R compatible pick-up with two-wavelength two-beam laser
Author :
Yamada, Masato ; Kajiyama, Seiji ; Kanou, Yasuyuki ; Matsumura, Yoshiyuki ; Tsuchiya, Yoichi
Author_Institution :
Hypermedia Res. Center, Sanyo Electr. Co. Ltd., Gifu, Japan
fDate :
8/1/1998 12:00:00 AM
Abstract :
The CD-ROM and CD-R (recordable CD) playback compatibility is in great demand for DVD-ROM disc drive devices. The authors developed a new optical mechanism that utilizes a holographic optical element with wavelength selectivity, and two-wavelength two-beam laser in order to produce a DVD/CD/CD-R playback compatible pick-up with one objective lens
Keywords :
CD-ROMs; holographic optical elements; laser beam applications; lenses; pick-ups; semiconductor lasers; video discs; CD-ROM; DVD-ROM disc drive devices; DVD/CD/CD-R compatible pick-up; objective lens; optical mechanism; playback compatibility; recordable CD; single mode semiconductor laser chips; two-wavelength two-beam laser; CD-ROMs; DVD; Drives; Holographic optical components; Holography; Laser beams; Lenses; Light sources; Optical design; Optical recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
