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#8
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I've been thinking how ingenius this implementation was - and its advantages:
1. No color filter for 'Y' tube = better sensitivity= sharper iris setting 2. Much less critical registration required for sharp picture 3. R & B need not be wideband (better noise performance--in addition to noise advantage of point 1 !)(other 3 tube cameras must sum RGB for Y)(getting a clean - all important - Luminance signal the hard way). Not surprising Fernseh had the best picture. Wonder why Norelco didn't do this ? Or why RCA TK-42 didn't eliminate the G vidicon ? |
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