February 2016
Intermediate to advanced
216 pages
14h 38m
English
Content preview from Newnes Audio and Hi-Fi Engineer's Pocket Book, 3rd Edition
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94
The CD player
Spot size Light source for disc scanning is a laser because it
generates a coherent beam of a single light wavelength that can
be focused down to the
1
μπι spot size required. Any other
source contains multiple wavelengths that separate when
passed through a lens to produce chromatic aberration, which
is the appearance of various coloured outlines around the
focused image. Achromatic lenses that avoid this are made of
two elements of different types of glass, one cancels the
dispersion of the other, but to make such a lens with the ability
to focus to such a fine spot would be very costly.
Interference modulation Light reflecte ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.