IEC 60857:1986/AMD2:1997 PDF
Amendment 2 - Pre-recorded optical reflective videodisk system 'Laser vision' 60Hz/525 lines - M/NTSC
Amendment 2 - Pre-recorded optical reflective videodisk system 'Laser vision' 60Hz/525 lines - M/NTSC
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 39
- Дата публикации:
- 28 апреля 1997 г.
- Издание:
- IEC IS 60857 edition 1 version 1
- ICS:
- 33.160.40
Abstract
Overview
IEC 60857:1986/AMD2:1997 is an important amendment to the international standard governing pre-recorded optical reflective videodisk systems, specifically the "Laser vision" 60Hz/525 lines M/NTSC format. Issued by the International Electrotechnical Commission (IEC), this amendment enhances and clarifies mechanical, optical, and operational parameters vital to the performance and compatibility of Laser Vision videodisks. The update includes specifications related to disk thickness, label dimensions, optical tolerances, temperature and humidity requirements, and introduces the implementation of a digital audio signal, aligning the standard with contemporary technological advances.
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