Heads, e.g. forming of the optical beam spot or modulation of the optical beam (disposition or mounting of head elements within housing or with provision for moving of light source, optical beam or detector, irrelevant to the transducing method G11B7/08 )

Full Title

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation , reproducing using an optical beam at lower power ; Record carriers therefor (G11B11/00, G11B13/00 take precedence) > Heads, e.g. forming of the optical beam spot or modulation of the optical beam (disposition or mounting of head elements within housing or with provision for moving of light source, optical beam or detector, irrelevant to the transducing method G11B7/08 )

Child Classifications

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• G11B 7/121 Protecting the head, e.g. against dust or impact with the record carrier
• G11B 7/122 Flying-type heads, e.g. analogous to Winchester type in magnetic recording
• G11B 7/123 Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
• G11B 7/125 Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
• G11B 7/13 Optical detectors therefor
• G11B 7/135 Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
• G11B 7/14 specially adapted to record on, or to reproduce from, more than one track simultaneously
• G11B 7/22 Apparatus or processes for the manufacture of optical heads, e.g. assembly