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An optical waveguide is a physical structure that guides electromagnetic waves in the optical spectrum.Common types of optical waveguides include optical fiber waveguides, transparent dielectric waveguides made of plastic and glass, liquid light guides, and liquid waveguides.
A scene will be properly illuminated for every combination of f‑stop and distance shown on this flash device's exposure calculation dial, each of which equals the same guide number. The guide number here (full power setting, ISO 100, and normal-angle coverage) is 37 for calculations made in meters (yellow arrow) and 120 for feet
Simple LED (Light Emitting Diode) circuit diagram. In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED.
Guide Plus+ (in Europe), TV Guide On Screen, TV Guide Daily, TV Guide Plus+ and Guide Plus+ Gold (in North America) or G-Guide (in Japan) are brand names for an interactive electronic program guide (EPG) system that is used in consumer electronics products, such as television sets, DVD recorders, personal video recorders, and other digital television devices.
An LED strip, tape, or ribbon light is a flexible circuit board populated by surface-mount light-emitting diodes (SMD LEDs) and other components that usually comes with an adhesive backing. Traditionally, strip lights had been used solely in accent lighting, backlighting, task lighting, and decorative lighting applications, such as cove lighting .
One HP-LED can often replace an incandescent bulb in a flashlight, or be set in an array to form a powerful LED lamp. Some HP-LEDs in this category are the Nichia 19 series, Lumileds Rebel Led, Osram Opto Semiconductors Golden Dragon, and Cree X-lamp.
On November 1, 1898, Dowling led a parade of 1,000 men, mounted on horses, on a ten mile long trek through Brooklyn and other black neighbourhoods of Wilmington. [82] Joining his Red Shirts were the New Hanover County Horsemen and former members of the disbanded Rough Riders, led by Theodore Swann. White women waved flags and handkerchiefs as ...
Setting. A lower video resolution setting may be desirable to extend recording time by reducing space storage and power consumption. The camera software of some smartphones is equipped with separate controls for resolution, frame rate, and bit rate. An example of a smartphone with these controls is the LG V10. [119]