Leland G. Atkinson

Design of a gradient-index photographic objective

A two-element gradient-index photographic objective was designed. It operates at f/2 and has a focal length of 50 mm. The half-field of view is 21.8 degrees . The design is compared to the six-element new double Gauss photographic objective and performs well in comparison.

Gradient-index wide-angle photographic objective design

Wide-angle photographic lens systems utilizing axial gradient elements are studied. The resulting two- and three-element designs are compared with a six-element homogeneous wide-angle lens designed by Nippon Kogaku K.K., U.S. Patent 4,099,850. Practical considerations for manufacturing are also discussed.

Imaging capabilities of a long gradient-index rod

The possibilities of transmitting spatial information through a long gradient-index rod are presented. Spatial resolution vs rod diameter are optimized for both visible and IR transmitting systems.

Gradient-Index Laser Scanning Lens Analysis

The purpose of this paper is to investigate the interchange between gradient-index and homogenous optics for correction of laser scanning cross-scan error. The advantage of gradient-index (GRIN) optics being that a cylindrical corrector lens can be replaced by a piano parallel GRIN element and a toroidal corrector lens can be replaced with a weak cylindrical GRIN element.

Cam Optical Fabrication System

Computer Aided Manufacturing, CAM systems for optical fabrication are emerging. As the technology advances optical surface manufacturing will move away from its present labor intensive status and allow the U.S. optical industry to regain an advantage in optical manufacturing. This paper describes a specific CAM Optical Fabrication System, CAM OFS, suitable for the manufacture of spherical surfaces. We also discuss the advantage optical CAM systems present to the optical designer in terms of accurate modeling of a manufactured optical system prior to its actual manufacture.