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ThinkLight was a keyboard light present on many older ThinkPad families of notebook computers. The series was originally designed by IBM , and then developed and produced by Lenovo since 2005. The ThinkLight has been replaced by a backlight keyboard on later generations of ThinkPads, and Lenovo has discontinued the ThinkLight in 2013.
In other words, it is the opposite to a flashing light where the total duration of darkness is longer than the duration of light. It has the appearance of flashing off, rather than flashing on. Like a flashing light, it can be used for a single occulting light that exhibits only a single period of darkness or the periods of darkness can be ...
As time goes on, there are more and more switches being developed and manufactured across the world. Some are by new manufacturers, some are collaborations between companies and manufacturers, and some are consumer made.
The scroll-lock key with an activated indicator light on an IBM Model M keyboard. Scroll Lock (⤓ or ⇳) is a lock key (typically with an associated status light) on most IBM-compatible computer keyboards. Depending on the operating system, it may be used for different purposes, and applications may assign functions to the key or change their ...
On cooling, the compound becomes a light yellow metastable phase, which over 2–3 weeks turns back into original red. [8] Many other tetrachloronickelates are also thermochromic. Bis(diethylammonium) tetrachlorocuprate(II) ([(CH 3 CH 2 ) 2 NH 2 ] 2 CuCl 4 ) is a bright green solid material, which at 52–53 °C reversibly changes color to yellow.
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liquid crystals do not emit light directly [1] but instead use a backlight or reflector to produce images in color or monochrome. [2]
In this case, pigment particles simply reflect whatever light hits the outer paint surface, where both blue and yellow light gets reflected and averaged together. Halftone printing uses non-opaque inks, such that the light transmits once through the ink, reflects off the white substrate (e.g. paper) and transmits a second time through the ink.
In this text navigation mode the ‘cursor’, often depicted as a blinking vertical line, appears within the text on-screen. The user can then navigate throughout the text by using the arrow navigation keys to cause the cursor to move; typically changing the cursor's location in increments of character position horizontally and of text line vertically.