The design and fabrication of two kinds of transmission diffractive optics is proposed. the optics are to replace bulkier and heavier refractive optics. the use of a conventional lens design program is suggested with modifications made by the investigator. a simple program by don small optics is… More

An in line helmet or headset mounted audio-video interactive display design is presented that has all of the imaging and projetion devices on or near a flip up faceplate or visor. no side or top mounted crt and projection lens is used and ambient lighting is a realistic possible option for display… More

Large aperture reflection holographic optics are proposed for use in LIDAR systems to make them mechanically simpler and lighter. Aberrations are minimized using contoured fringes calculated to compensate for spherical aberrations and to reduce astigmatism and coma that results from operation off… More

Conical scanning LIDAR systems and laser ranging systems that measure atmospheric backscatter, clouds, aerosols, winds, trace species, and sub-surface ocean layers require ruggedized construction and easy alignment. We are proposing to reduce the complexity and alignment chores by building five… More

Conical scanning LIDAR systems and laser ranging systems that measure atmospheric backscatter, clouds, aerosols, winds, trace species, and sub-surface ocean layers require ruggedized construction and easy alignment. We are proposing to reduce the complexity and alignment chores by building five… More

Conical scanning LIDAR systems and laser ranging systems that measure atmospheric backscatter, clouds, aerosols, winds, trace species, and sub-surface ocean layers require ruggedized construction and easy alignment. We are proposing to reduce the complexity and alignment chores by building five… More