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Amici prism. For the reflecting prism, see Amici roof prism. An Amici prism, named for the astronomer Giovanni Battista Amici, is a type of compound dispersive prism used in spectrometers. The Amici prism consists of two triangular prisms in contact, with the first typically being made from a medium-dispersion crown glass, and the second from a ...
The prismatic lenses of the belay glasses are arranged so as to bend light from above through total internal reflection into the observer's eye, allowing the belayer to observe the climber while maintaining a comfortable head/neck position. The design based on the eyeglasses frame provides for a split field of vision: the peripheral field ...
Suppression of an eye is a subconscious adaptation by a person's brain to eliminate the symptoms of disorders of binocular vision such as strabismus, convergence insufficiency and aniseikonia. The brain can eliminate double vision by ignoring all or part of the image of one of the eyes. The area of a person's visual field that is suppressed is ...
"Double Vision" is a single by Foreigner from their second album of the same name. The song reached No. 2 on the Billboard Hot 100 chart for two weeks in 1978, behind "MacArthur Park" by Donna Summer. It became a gold record. The song was also a top 10 hit in Canada. The song has been a staple of the band's setlist since its release.
The Four Prism Dioptre Reflex Test (also known as the 4 PRT, or 4 Prism Dioptre Base-out Test) is an objective, non-dissociative test used to prove the alignment of both eyes (i.e. the presence of binocular single vision) by assessing motor fusion. [1] Through the use of a 4 dioptre base out prism, diplopia is induced which is the driving force ...
Double Vision is the second studio album by the British-American rock band Foreigner, released on 20 June 1978 by Atlantic Records. Recorded between December 1977 and March 1978, it was Foreigner's only album co-produced by Keith Olsen and the last recording with bass guitarist Ed Gagliardi who would be later replaced by Rick Wills .