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- David L. Shealy, John A. Hoffnagle
- Applied optics
- 2006

We consider four families of functions--the super-Gaussian, flattened Gaussian, Fermi-Dirac, and super-Lorentzian--that have been used to describe flattened irradiance profiles. We determine theâ€¦ (More)

- C Wang, David L. Shealy
- Applied optics
- 1993

Refractive systems using two gradient-index lenses have been designed to convert a collimated Gaussian-profile laser beam into a plane wave with a uniform intensity distribution. The axialâ€¦ (More)

- David L. Shealy, John A. Hoffnagle
- Journal of the Optical Society of America. Aâ€¦
- 2008

A simple expression is given for the k-function associated with the general solution of Stavroudis to the eikonal equation for refraction or reflection of a plane wave from an arbitrary surface.â€¦ (More)

- Patrick Rhodes, David L. Shealy
- Applied optics
- 1980

A set of differential equations is derived which specifies the shape of two aspherical surfaces of a lens system that will convert an incident plane wave with an arbitrary energy profile intoâ€¦ (More)

- D G Burkhard, David L. Shealy
- Applied optics
- 1975

A differential equation is obtained for reflecting surface that will distribute radiation originating from a linear array of discrete sources or a continuous line source into a specified illuminanceâ€¦ (More)

- D G Burkhard, G. L. Strobel, David L. Shealy
- Applied optics
- 1978

The concentrating properties of specularly reflecting pyramids, hexagons, and circular cones are examined. The concentration factor is determined as a function of the coefficient of reflection andâ€¦ (More)

- I H Al-Ahdali, David L. Shealy
- Applied optics
- 1990

For an imaging optical system it is, in general, desirable to transform a collection of point sources of light into point images distributed over the focal plane with the appropriate magnification.â€¦ (More)

- David L. Shealy, Timo T. Saha
- Applied optics
- 1990

Geometrical optics the laws of reflection and refraction, ray tracing, conservation of energy within a bundle of rays, and the condition of constant optical path length provides a foundation forâ€¦ (More)

- David L. Shealy
- 2002

An overview of the history and current practices of laser beam shaping is presented. When diffraction effects are not important, geometrical methods for laser beam shaping (ray tracing, conservationâ€¦ (More)