Cemented lens | Article about cemented lens by The Free Dictionary
cemented lens[si′men·təd ′lenz]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Kellner, orthoscopic, or Plossl eyepieces produce sharper images, but care must be taken to avoid heat buildup, which can damage cemented lens