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Beam expanders are optical devices that take a collimated beam of light and expand its width (or, used in reverse, reduce its width). In laser physics they are used either as intracavity or extracavity elements. They can be telescopic in nature or prismatic. Generally prismatic beam expanders use several prisms and are known as multiple-prism ...
Dichroic prism. A dichroic prism is a prism that splits light into two beams of differing wavelengths (colour). A trichroic prism assembly combines two dichroic prisms to split an image into 3 colours, typically as red, green and blue of the RGB colour model. They are usually constructed of one or more glass prisms with dichroic optical ...
Description. Littrow (optical) prisms typically have the shape of a (geometric) prism with a 30°/60°/90° right triangular base, [1] [2] equivalent to half an equilateral triangle. Typically, they are coated with a reflective film coating on the surface opposite the 60° angle. This design was devised by Otto von Littrow (1843—1864).
The Ohio Penitentiary, also known as the Ohio State Penitentiary, was a prison operated from 1834 to 1984 in downtown Columbus, Ohio, in what is now known as the Arena District. The state had built a small prison in Columbus in 1813, but as the state's population grew the earlier facility was not able to handle the number of prisoners sent to ...
Prism adaptation. Prism adaptation is a sensory-motor adaptation that occurs after the visual field has been artificially shifted laterally or vertically. It was first introduced by Hermann von Helmholtz in late 19th-century Germany as supportive evidence for his perceptual learning theory (Helmholtz, 1909/1962). [1]
In roof prism designs, optically relevant prism angles must be correct within 2 arcseconds (1 / 1,800 of 1 degree) to avoid seeing an obstructive double image. Maintaining such tight production tolerances for the alignment of their optical elements by laser or interference (collimation) at an affordable price point is challenging.
Boris Continuum Complete. Boris Continuum Complete is a special effects plug-in package that works in conjunction with Adobe Creative Suite, including CS6, Avid editing and finishing systems such as Sony Vegas Pro, and Apple Final Cut Pro. Its effects are divided into 16 different categories: 3D Objects, Art Looks, Blur & Sharpen, Color & Tone ...
The Arkansas Department of Corrections ( DOC ), formerly the Arkansas Department of Correction, is the state law enforcement agency that oversees inmates and operates state prisons within the U.S. state of Arkansas. DOC consists of two divisions, the Arkansas Division of Corrections (ADC) and the Arkansas Division of Community Corrections (DCC ...