Concave spherical mirrors for schlieren imaging systems.(New Products)

Advanced Imaging;  February 1, 2006 ;     254 words ......non-existent Optical Surfaces Ltd. routinely produces concave spherical mirrors (up to 800 mm in diameter) for Schlieren imaging systems...and ULE. Experienced optical craftsman routinely produce spherical mirrors with surface accuracy of better than lambda/10 with particular...

mirror

A Dictionary of Physics;      110 words ......of a real object, in which front and back are reversed. Spherical mirrors are formed from the surfaces of spheres and form images...real images or erect virtual images. (See illustrations.) Spherical mirrors obey the lens equation (using the real-positive sign convention...

Finnish Inventor Develops Radiation Beam Analyzing Interferometer

US Fed News Service, Including US State News;  October 10, 2007 ;     278 words ......planar mirrors, constituted by two plane mirrors, and two angular mirrors, constituted by plane mirrors and arranged to deflect a course of...splitter by way of at least one pair of plane mirrors to the angular mirrors, to the end...

Japanese Inventor Develops Imaging Device

US Fed News Service, Including US State News;  October 5, 2006 ;     253 words ......imaging device includes a plurality of plane mirrors disposed into a polygonal pyramid shape...individually face to the plurality of plane mirrors, wherein each of the plurality of cameras...corresponding one of the plurality of plane mirrors is less than 45 degree. With this ...

(book reviews)

Science Activities;  June 22, 1994 ;     310 words ......to familiar examples of reflections and a bit of history, Plane Mirrors (the first section) provides the reader with good directions...plastic, and the initial activities repeat those done with plane mirrors. A nice bit follows on the creation of ghost images on stage...

periscope

A Dictionary of Physics;      80 words ......mirrors at each end set at 45° to the direction to be viewed. A better type uses internally reflecting prisms instead of plane mirrors. Periscopes are used in tanks (to enable the observer to see over obstacles without being shot at) and in submarines (when...

Fresnel mirrors

Webster's NewWorld Dictionary;      58 words ...Webster's NewWorld Dictionary 01-01-1988 Fresnel mirrors Optics two plane mirrors linked together at an angle a little less than 180 so that a beam of light falling on them is reflected by these mirrors in slightly...

Microscope objective.

Quality In Manufacturing;  May 1, 1999 ;     77 words ......working distances with near diffraction limited performance. The objective is a two mirror system with concave and convex spherical mirrors for aberration-free viewing and long working distances. It is shock and vibration resistant. Standard 1 15x and 36x models...

The Text 'The Light Fantastic: A Modern Introduction To Classical And...

M2 Presswire;  July 28, 2008 ;     700+ words ......Corner cube reflector 2.2.4 Pulfrich refractometer 2.3 Optical fibre 3 Spherical mirrors and lenses 3.1 Introduction 3.1.1 Cartesian sign convention. 3.2 Spherical mirrors. 3.2.1 Ray tracing for mirrors. 3.3 Refraction at a spherical interface...

Japanese Inventors Develop Lighting Optical Machine

US Fed News Service, Including US State News;  August 28, 2008 ;     317 words ......source, a beam deflection mechanism having first and second plane mirrors enabling a beam emitted from the laser source to be reflected...control mechanism for controlling the directions of the two plane mirrors of the beam deflection mechanism with an electric signal...

Fiber-optic laser encoder. (New Products).

Product Design & Development;  April 1, 2003 ;     88 words ......ease of installation comparable with traditional tape- and glass-based encoders. With axis lengths of up to 1 m when using plane mirrors, it is suitable for X-Y stages, wafer inspection machines, machine tools, CMMs, precision gauges, and glass grinding machines...

WIPO: Inventors in California Develop Aerial Images Producing Apparatus

US Fed News Service, Including US State News;  November 26, 2008 ;     224 words ......Property Organization, the invention relates to an "apparatus for producing aerial images having a combination of plastic spherical mirrors, beamsplitter polarizing filters, and light sources. An object to be displayed is illuminated, and its image is partially...

Nebraska Inventors Develop Electromagnetic Radiation Providing System

US Fed News Service, Including US State News;  December 6, 2007 ;     208 words ......sample at different angles of incidence, and after reflection therefrom into a detector. The system includes a plurality of spherical mirrors, and a refractive element for correcting aberration." The inventors were issued U.S. Patent No. 7,304,792 on Dec. 4. The...

Interferometer-based position feedback

Manufacturing Engineering;  April 1, 2003 ;     194 words ......encoder from Renishaw Inc. (Hoffman Estates, IL) is an interferometer-based system. With axis lengths to 1 m, when using plane mirrors, it's well suited for X-Y stages, machine tools, CMMs, precision gages, and other precision motion systems. Providing dual...

Japanese Inventors Develop Optical Scanning Device

US Fed News Service, Including US State News;  February 23, 2008 ;     361 words ......due to the curvature in scanning line trail. Two stationary plane mirrors are disposed to face a deflective reflecting facet which...deflective reflecting facet is reflected by the two stationary plane mirrors sequentially. The reflected light beam is incident on and...