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Amici 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 higher-dispersion flint glass.
Double Vision is one of the earliest and best known video works by American (born 1937) artist Peter Campus. [1] Running 14 minutes and 22 seconds, it is a single channel video created with two video cameras fed through a mixer, providing the effect of a photographic double exposure. The video is divided into seven parts, [2] each referencing a ...
History of optics. Modern ophthalmic lens making machine. Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term ...
6/6 vision is defined as the ability to resolve two points of light separated by a visual angle of one minute of arc, corresponding to 60 PPD, or about 290–350 pixels per inch for a display on a device held 250 to 300 mm from the eye. Thus, visual acuity, or resolving power (in daylight, central vision), is the property of cones.
Blue-cone monochromacy. Blue cone monochromacy ( BCM) is an inherited eye disease that causes severe color blindness, poor visual acuity, nystagmus and photophobia due to the absence of functional red (L) and green (M) cone photoreceptor cells in the retina. BCM is a recessive X-linked disease and almost exclusively affects XY karyotypes.
Eyeglass prescription. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient. If an eye examination indicates that corrective lenses are appropriate, the ...
"Hot Blooded" is a song by the British-American rock band Foreigner, from their second studio album Double Vision. It was released as a single in June 1978 and reached #3 on the Billboard Hot 100 chart that September. The single was also certified Platinum (one million units sold) by the Recording Industry Association of America.
Vertebrate visual opsin. Three-dimensional structure of bovine rhodopsin. The seven transmembrane domains are shown in varying colors. The retinal chromophore is shown in red. Vertebrate visual opsins are a subclass of ciliary opsins and mediate vision in vertebrates. They include the opsins in human rod and cone cells.