High-gain holographic screens.
نویسندگان
چکیده
A high-gain screen can be made as a sandwich of a hologram and a retroreflective screen material. When a hologram is used in front of the screen instead of the screen material alone, the position of high-brightness viewing can be moved to any desired angle rather than being directed back along the projection beam.
منابع مشابه
Holography in General Space-times
We provide a background-independent formulation of the holographic principle. It permits the construction of embedded hypersurfaces (screens) on which the entire bulk information can be stored at a density of no more than one bit per Planck area. Screens are constructed explicitly for AdS, Minkowski, and de Sitter spaces with and without black holes, and for cosmological solutions. The properti...
متن کاملar X iv : h ep - t h / 99 06 02 2 v 2 2 4 Ju n 19 99 Holography in General Space - times
We provide a background-independent formulation of the holographic principle. It permits the construction of embedded hypersurfaces (screens) on which the entire bulk information can be stored at a density of no more than one bit per Planck area. Screens are constructed explicitly for AdS, Minkowski, and de Sitter spaces with and without black holes, and for cosmological solutions. The properti...
متن کاملCoding tradeoffs for high–density holographic data storage
We present an initial experimental evaluation of coding and signal processing tradeoffs in high–density holographic data storage. Block–based and low–pass modulation codes, predistortion of holographic pages during recording (pre–processing), and conventional equalization (post–processing) are compared using a few recorded holograms. The relative gain in number of stored holograms is obtained b...
متن کاملActive Optical Tracking with Spatial Light Modulators THESIS
Two spatial light modulators (SLMs) are utilized for beam splitting, steering and tracking. Both linear and holographic phase screens are used in a demonstration of technology to allow real time tracking to communicate in a one-to-several type scenario. One SLM is used to apply a linear phase modulation to steer multiple beams onto a detector. The spots that are produced represent the targets a...
متن کاملHolographic Optical Elements for Holographic Stereogram Printers
A number of methods for producing holographic optical elements (HOEs) for use in projecting integral images in holographic stereogram printers are presented, with emphasis on application to Ultragram format one-step stereograms. Creation of HOEs to replace standard diffusion screens and enhance stereogram printer imaging properties and efficiency is discussed. Monolithic and integral holographi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Optics letters
دوره 6 11 شماره
صفحات -
تاریخ انتشار 1981