Abstract
The application of aspherical surfaces in camera lens started over twenty years ago. Many people suggested and executed many ideas regarding the application of aspherical surfaces. One of the ideas is that the application decreases the value of the F No. The example of the applications is a pick-up-lens that picks up information on a disk using the optical method. In this paper, we discuss the application of aspherical surfaces in wide angle lenses with a large back focus for reflex cameras. The application mainly corrects distortion in the lens designs.
An object of the present paper is to show an inverse telescopic wide angle lens capable of simplifying the lens configuration thereby reducing the dimension of lens, correcting various aberrations in satisfactory manner, and still extending the back focus.
© 1994 Optical Society of America
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