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Playing apparatus, in particular a video player for playing a record which is made of a transparent material and provided with a central hole
Playing apparatus, in particular a video player for playing a record which is made of a transparent material and provided with a central hole
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机译：播放设备，特别是用于播放唱片的视频播放器，该唱片由透明材料制成并设有中心孔
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摘要
A playing apparatus, more specifically a video player for playing round records with a central hole, which are made of a transparent material, which records at one side have a transparent surface and at their other side are provided with information tracks which are optically readable with the aid of a read beam, which tracks are covered by a light-reflecting layer. In order to enable both relatively thick rigid records and relatively thin flexible records to be played on one playing apparatus, the invention provides a transparent adapter disc, which together with a flexible record can be positioned on the playing apparatus and driven in a rotary fashion. In order to prevent dust particles from being trapped between the flexible record and the transparent adapter disc, the adapter disc may be provided with a central recess with a number of air admission apertures at the circumference thereof, so that during operation a thin film of air is formed between the flexible record and the adapter disc.
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