- two-beam hologram
- внеосевая голограмма, голограмма Лейта - Упатниекса
Большой англо-русский и русско-английский словарь. 2001.
two-beam hologram
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Security hologram — 5000/10000 notes, etc. They are also used in credit and bank cards as well as quality products.Holograms are classified into different types with reference to the degree of level of optical security incorporated in them during the process of… … Wikipedia
Reference beam — A reference beam is a laser beam used to read and write holograms. It is one of two laser beams used to create a hologram. In order to read a hologram out, some aspects of the reference beam (namely its angle of incidence, beam profile and… … Wikipedia
Gaussian beam — In optics, a Gaussian beam is a beam of electromagnetic radiation whose transverse electric field and intensity (irradiance) distributions are well approximated by Gaussian functions. Many lasers emit beams that approximate a Gaussian profile, in … Wikipedia
Signal beam — A signal beam or object beam is one of at least two laser beams used to write holograms. The signal beam is the beam that carries the information to be stored in the hologram. In the case of a holographic picture, this beam is reflected off the… … Wikipedia
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
holography — /heuh log reuh fee/, n. the process or technique of making holograms. [1795 1805; HOLO + GRAPHY] * * * Method of recording or reproducing a three dimensional image, or hologram, by means of a pattern of interference produced using a laser beam.… … Universalium
Liquid crystal on silicon — Conceptual diagram of the LCoS technology. Liquid crystal on silicon (LCoS or LCOS) is a micro projection or micro display technology typically applied in projection televisions. It is a reflective technology similar to DLP projectors; however,… … Wikipedia
Central Virginia Governor's School for Science and Technology — Infobox School2 name = Central Virginia Governor s School for Science and Technology established = 1985 type = Magnet school colors= Teal and gray ██ head name = head = head name2 = head2 = city = Lynchburg, Virginia country = USAThe Central… … Wikipedia
Holography — (from the Greek, ὅλος hólos whole + γραφή grafē writing, drawing) is a technique that allows the light scattered from an object to be recorded and later reconstructed so that it appears as if the object is in the same position relative to the… … Wikipedia
Holographic data storage — is a potential replacement technology in the area of high capacity data storage currently dominated by magnetic and conventional optical data storage. Magnetic and optical data storage devices rely on individual bits being stored as distinct… … Wikipedia
Computer-generated holography — (CGH) is the method of digitally generating holographic interference patterns. A holographic image can be generated e.g. by digitally computing a holographic interference pattern and printing it onto a mask or film for subsequent illumination by… … Wikipedia
