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Old 26th May 2017, 6:37 pm   #11
peter_scott
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Join Date: May 2003
Location: Edinburgh, UK.
Posts: 3,274
Default Re: Baird 240 line Operation

When you say twice as much screen is that because you are assuming the spot size is half the width of the Baird?

Switching between 240 and 405 in my set the spot size remains the same.

Yes, the EMI is not retracing over the same phosphor areas (or shouldn't be) as in the previous half frame but there is always 202 lines worth scanned every 20 ms. In Baird you do get more lines but those 240 lines have to last your eyes for 40 ms.

Peter
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