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 ?
It will also feature an "expert mode" for the camera, which allows users to set aperture ratio, white balance, shutter speed, and other settings when taking photos.
SFT2 improves the aperture ratio via a newly developed pixel structure, resulting in both high-density and excellent optical performance, yielding wide viewing angles, wide color gamut, and high transmissivity, while keeping power consumption low.
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.
Major points of measurement Room environment Natural ventilation - Room temperature - Inlet open/ close and humidity at - Outlet aperture ratio wall - Solar chimney outlet open/ close - Room temperature - Outlet air temperature and velocity and humidity at - Solar chimney outlet air ceiling temperature and velocity Room environment Outdoor condition Electricity Machines consumption operation - Room temperature - Air temperature - Tenant lighting and humidity at - Air humidity - Tenant plug - AC operating wall - Wind velocity - Tenant AC hours - Room temperature - Wind direction - Common lighting - AC setting and humidity at - Precipitation - Common plug temperature ceiling - Solar radiation - Common AC - C[O.
The X- (10th) Generation Panel has a wider aperture ratio,
Highlights of the device include X-Generation Panel Technology, which offers a wider aperture ratio that allows easy light transmission through the panel, offering good image contrast quality and lower power consumption.
This 'Super Top Emission' technology has a high aperture ratio and enables light to be extracted efficiently from the structure's OLED layer.
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.
Changes in bell morphology during development were quantified by measuring the fineness ratio, F, and velar aperture ratio, [R.
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.

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