Lsa, Inc.

John G Lehman, Jr

Dale R Tyczka

Alvin B Cabato

Kevin M Flood

David Warner

J Michael Finlan

Daniel Stern

Mary E Gerard

A Moir&#xe9; deflectometer includes at least three non-mechanical, transparent, spatial light modulators for demonstrating two sets of patterns on two parallel planes on two of the modulators thereby creating a Moir&#xe9; fringe pattern and a method for using the same. More particularly, each of the spatial light modulators may be a liquid crystal display, an electrochromic device, a micromirror array, a microlouvre array, an electro-optic device, or a holographic device.

Moir&#xe9; deflectometer including non-mechanical, transparent, spatial light modulators for demonstrating two-axis rulings

A periscopic optical training system for displaying simulation and real images includes a microprocessor for generating at least one simulation image, at least one display for displaying the simulation image, at least one periscopic device each with a viewing window for receiving the simulation and real images, and a controller for controlling the simulation and real images to be received by the periscopic device interchangeably or simultaneously.

Periscopic optical training system for operators of vehicles

A polarizing beamsplitter cube, such as for midwave infrared spectral applications, comprises two ZnSe 45&deg; prisms, an adhesion layer and a thin-film polarization coating layer that are deposited onto the hypotenuse of the first prism, a refractive index liquid layer that provides an interface between the prisms that defeats total internal reflection when the prisms are joined together, and a urethane adhesive that permanently seals and encapsulates the liquid. The adhesion layer consists of 100 &angst; thorium fluoride and 50 &angst; chromium layers. The polarization coating (PC) comprises alternating layers of zinc sulfide (ZnS) and germanium (Ge) which are deposited by vapor deposition.

MWIR polarizing beamsplitter cube and method of making the same

Growing community of inventors

King of Prussia, PA, United States of America

John G Lehman, Jr