G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.2
G11B 7/095 (2006.01) G11B 7/08 (2006.01)
Patent
CA 1213050
ABSTRACT: "Apparatus for recording and/or reading information by means of a radiation beam.". An apparatus reads and/or records information on a disc 3 by means of a light beam 20, which disc rotates about an axis of rotation 2 and is driven by a drive spindle 31 which is journalled in a spindle support 30, an objective 1 being moved along two parallel guides 9 by means of a slide 6 in a radial direction relative to the axis of rotation 2. All parts of an opto-electronic system for producing the light beam and for effecting a conversion between optical and electrical modulation may be arranged on the slide but may alternatively form part of a stationarily arranged opto-electronic system 33. At least the spindle support 30 or the stationarily arranged opto-electronic system 33 is supported by the guides 9, for example by means of supports 39 and 40 which are formed with locating surfaces which cooperate with the guides 9A and 9B.
445174
Jansen Gerardus L.m.
Vorspaget Alexander
N.v.philips'gloeilampenfabrieken
Van Steinburg C.e.
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