There are 272 different Spherical from suppliers and manufacturers listed in this category. In just a few clicks you can compare different Spherical with each other and get an accurate quote based on your needs and specifications. Please note that the prices of Spherical vary significantly for different products based on various factors including technical parameters, features, brand name, etc. Please contact suppliers directly to inquire about the details and accurate pricing information for any product model. Simply navigate to the product page of interest and use the orange button to directly reach out to the respective supplier with one click.
Did You know?
The earliest known lenses were made from polished crystal, often quartz, and have been dated as early as 750 BC. The focal length of a lens is the measure of the power of the lens. Lenses work on the principle of refraction and can be of Convex, Concave as well as of Compound type. They have several applications in Binoculars, Telescopes, Electron Microscopes, Movie Projectors, Cameras and Data Storage Media. It’s interesting that Lighthouses use amazing Fresnel lenses. Until the advent of plastics, they were manufactured with grinding solid glass which have been replaced with more refined optical class.