Go Back   Physics Help Forum > College/University Physics Help > Advanced Optics

Advanced Optics Advanced Light and Optics Physics Help Forum

Like Tree1Likes
  • 1 Post By ChipB
LinkBack Thread Tools Display Modes
Old Oct 18th 2016, 09:42 AM   #1
Junior Member
Join Date: Oct 2016
Posts: 1
Question Help: Calculate a sphere from base curve

Contact lenses are generally defined by their power, base curve, and diameter.
Does anyone know how to calculate the sphere based on a base curve of 9?
Thanks for the help.
bonehead is offline   Reply With Quote
Old Oct 18th 2016, 11:19 AM   #2
Physics Team
ChipB's Avatar
Join Date: Jun 2010
Location: Morristown, NJ USA
Posts: 2,339
The base curve for contact lenses is the radius of the back side of the lens (see: https://en.wikipedia.org/wiki/Base_curve_radius). I'm not sure what you mean by "calculate the sphere," except to say that a sphere that matches a contact lens with a base curve radius of 9 would itself have a radius of 9 mm.
topsquark likes this.
ChipB is online now   Reply With Quote

  Physics Help Forum > College/University Physics Help > Advanced Optics

base, calculate, curve, dimensions, lens, sphere

Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes

Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
can anyone tell me about this curve? nirmal19 Theoretical Physics 1 Dec 7th 2010 11:53 AM
Oscilloscope - Time Base labview1958 Electricity and Magnetism 0 Jul 21st 2010 12:46 AM
What angle should the banked curve be? s3a Kinematics and Dynamics 1 Mar 7th 2010 08:06 PM
Question about base unit of mass arbolis General Physics 2 Aug 2nd 2008 03:21 PM
working out base units feenon Kinematics and Dynamics 8 Apr 16th 2008 08:13 AM

Facebook Twitter Google+ RSS Feed