Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1


L7-31: PRINCIPAL PLANES 9 years 11 months ago #936

  • zzfixk21
  • zzfixk21's Avatar Topic Author
  • Offline
  • User is blocked
  • User is blocked
  • Posts: 1014
  • Karma: 1
  • Thank you received: 0

ID Code: L7-31
Purpose: Illustrate principal planes of a compound lens system.
Description: The cylinder in the photograph contains a 10 cm focal length convex lens and a 10 cm focal length concave lens separated by 5 cm, so the focal length of the system is 20 cm. Because the principal planes are both outside of the cylinder lens system and on the same side, the focal distances with the lens cylinder oriented in the two directions are considerably different. Form an image of the light on the screen with one end of the cylinder facing the light, then reverse the lens cylinder and move the cylinder to refocus.
Availability: Available

Please Log in to join the conversation.

Last edit: by zzfixk21.
  • Page:
  • 1
Time to create page: 0.078 seconds