Frishauf, Holtz, Goodman & Woodward
Optical disk apparatus with beam energy correction for deviations in inclination
 An optical disk apparatus has an optical head. The optical head emits a light beam onto an optical disk and forms pits in the optical disk, thereby recording a signal. A detector detects the relative inclination between the optical head and the optical disk and generates a signal corresponding to this relative inclination. A beam intensity correction circuit corrects the intensity of the light beam in accordance with the relative inclination to form proper pits. In one embodiment, the intensity of the light beam is increased when the relative inclination is increased. 
Olympus Optical Co., Ltd.
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inventional inventional inventional
Hideyuki Nobuhide Kiichi Masaharu
Kenjyo Matsubayashi Kato Sakamoto