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• Rack
  [[Category:2.2 Optical Apparatus]]
  264 bytes (36 words) - 11:01, 1 March 2009
• Fresnel Lens
  A prismatic lens obtained by the rotation of a Fresnel profile about the optical axis of the lens (Fresnel Panel), or about a vertical axis (Fresnel Drum Le [[Category:2.2 Optical Apparatus]]
  411 bytes (56 words) - 04:02, 3 February 2024
• Equi-Angular Lens
  ...ismatic lens obtained by the rotation of an equi-angular profile about the optical axis of the lens. In such a lens, the bullseye and rings usually present a [[Category:2.2 Optical Apparatus]]
  424 bytes (57 words) - 03:24, 3 February 2024
• Parabolic Reflector
  ...source placed at the focus of the paraboloid are rendered parallel to the optical axis (2-2-110) after reflection. [[Category:2.2 Optical Apparatus]]
  508 bytes (71 words) - 11:01, 1 March 2009
• Depolished Glass
  [[Category:2.2 Optical Apparatus]]
  307 bytes (37 words) - 11:01, 1 March 2009
• Stepped Lens
  [[Category:2.2 Optical Apparatus]]
  251 bytes (33 words) - 11:01, 1 March 2009
• Alternating Sectors
  [[Category:2.2 Optical Apparatus]]
  395 bytes (48 words) - 18:54, 8 July 2016
• Order (of an optic)
  [[Category:2.2 Optical Apparatus]]
  276 bytes (33 words) - 13:11, 3 February 2024
• Mirror
  [[Category:2.2 Optical Apparatus]]
  352 bytes (48 words) - 11:01, 1 March 2009
• Total Subtense
  [[Category:2.2 Optical Apparatus]]
  343 bytes (42 words) - 20:06, 8 July 2016
• Diverted Beam
  [[Category:2.2 Optical Apparatus]]
  352 bytes (45 words) - 02:53, 3 February 2024
• Drum Lens
  [[Category:2.2 Optical Apparatus]]
  332 bytes (42 words) - 02:59, 3 February 2024
• Subtense Angle
  Note: In France, the subtense angle of an optical panel, measured in the horizontal plane, is called Ouverture. In Germany, the subtense angle of a fixed lens or of an optical panel, measured in the horizontal plane, is called Spannwinkel.
  672 bytes (102 words) - 20:07, 8 July 2016
• Optical Panel
  {{languages|Optical Panel}} [[Category:2.2 Optical Apparatus]]
  613 bytes (86 words) - 13:10, 3 February 2024
• Optic
  [[Category:2.2 Optical Apparatus]]
  414 bytes (56 words) - 11:01, 1 March 2009
• Sector Accuracy
  [[Category:2.2 Optical Apparatus]]
  365 bytes (43 words) - 12:46, 4 February 2024
• Prismatic Lens
  [[Category:2.2 Optical Apparatus]]
  448 bytes (61 words) - 11:01, 1 March 2009
• Lens
  2. Frequently used in a more general sense for an assembly of optical elements which have a common focus. For examples, see 2-2-085, 2-2-090, 2-2 [[Category:2.2 Optical Apparatus]]
  658 bytes (92 words) - 04:45, 3 February 2024
• Neutral Filter
  [[Category:2.2 Optical Apparatus]]
  389 bytes (51 words) - 11:01, 1 March 2009
• Axis (of a fixed lens)
  [[Category:2.2 Optical Apparatus]]
  370 bytes (51 words) - 00:27, 2 February 2024

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