1
Cecil W Campbell, Robert B Owen: Collimated beam manifold with the number of output beams variable at a given output angle. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, Joseph H Beumer, John R Manning, L D Wofford Jr, December 7, 1982: US04362361 (28 worldwide citation)

An optical manifold transforms a collimated beam, such as a laser beam, into a plurality of parallel beams having uniform intensity or having a desired intensity ratio. The manifold (10) comprises an optical substrate (12) coated on its rear surface (13) with a fully reflective layer (14) and on its ...


2
Robert B Owen, Mary H Johnston: Laser schlieren crystal monitor. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, Joseph H Beumer, John R Manning, Leon D Wofford Jr, July 21, 1987: US04681437 (5 worldwide citation)

A system and method for monitoring the state of a crystal (C) which is suspended in a solution is disclosed which includes providing a light source (10) for emitting a beam (12) of light along an optical axis (X). A collimating lens is arranged along the optical axis for collimating the emitted beam ...


3
Robert B Owen, William K Witherow: Dual laser optical system and method for studying fluid flow. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, J H Beumer, J R Manning, L D Wofford Jr, July 5, 1983: US04391518 (4 worldwide citation)

A dual laser optical system and method is disclosed for visualization of phenomena in transparent substances which induce refractive index gradients such as fluid flow and pressure and temperature gradients in fluids and gases. According to the invention two images 68 and 70 representing mutually pe ...


4
Vernon W Keller, Robert B Owen, Bobby R Elkins, William T White: Double window viewing chamber assembly. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, Joseph H Beumer, John R Manning, Leon D Wofford Jr, October 21, 1986: US04618215 (1 worldwide citation)

A viewing chamber which permits observation of a sample retained therein includes a pair of double window assemblies mounted in opposed openings in the walls thereof so that a light beam can directly enter and exit from the chamber. A flexible mounting arrangement for the outer windows of the window ...