aperture ratio

aperture ratio

(relative aperture) The ratio d /f of the effective diameter (i.e. aperture), d , of a lens or mirror to its focal length, f . The ratio f /d is the focal ratio.

aperture ratio

[′ap·ə‚chər ′rā·shō]
(optics)
The ratio of the effective diameter of a lens to its focal length.
References in periodicals archive ?
Both projectors deliver Absolute Black contrast ratio that displays zero lumens during full-black scenes as well as improved pixel density and increased aperture ratio for smoother, film-like pictures.
However, mobile devices do not have much control over the aperture ratio.
Lead-free no-clean and water-soluble paste chemistries were included, along with two different aperture ratio (A/R) design points for all components studied.
The X- (10th) Generation Panel has a wider aperture ratio,
Charles Annis, Vice President for Manufacturing Research, added that panel makers are rapidly commercializing a variety technology solutions that enable super high resolution FPDs, such as low temperature polysilicon (LTPS) and other high mobility backplane materials, low resistivity metal bus lines, high aperture ratio pixel designs, and laser induced thermal imaging (LITI) for AMOLEDs.
Fujitsu Laboratories developed a new liquid-crystal material with superior reflective characteristics that can reflect more incoming light, as well as widening the aperture ratio (the effective reflective region) of the display panel to minimize light loss, resulting in a reflectance of 33% (1.
Viera LCD models feature an IPS Alpha panel with a large aperture ratio.
The Canon REALiS SX6000 and REALiS WX6000 projectors integrate new, advanced LCOS display panels with an improved pixel-spacing aperture ratio of 96 percent.
Print Aperture Ratio, Enclosed Media DEVICE TYPE ENCLOSED PRINT HEAD ENCLOSED PRINT HEAD VOLUME STD.
True black colour accuracy - with a 95 percent aperture ratio, each of the two million plus pixels provides users with the most accurate and superior image quality available
66 aperture ratio rule can be broken, but only when suitable materials and inputs are used in the print process.
The thin ribs improve the aperture ratio of each tiny pixel cell, so that the New 1080p Full HD PEAKS (Picture Enhancement Accelerator with Kinetic System) Plasma Panel offers the same brightness as the current 42-inch HD model (TH-42PX600).

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