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A lamp using a gooseneck. A gooseneck is a semi-rigid, flexible joining element made from a coiled metal hose. Similar to its natural counterpart, it can be bent in almost any direction and remain in that position. [1] Areas of application for goosenecks are movable brackets for lights, magnifying glasses, microphones and other devices. [2]
The international lamp coding system (ILCOS) is defined by IEC 61231, [1] an international standard maintained by the lamp technical committee of the International Electrotechnical Commission. It is intended to provide a well-defined and vendor-independent coding system for all lamp categories except vehicle lamps. The first version of the ...
A balanced-arm lamp has a base, a stand or body, (in most cases) two connected arms (in many cases fitted with springs), and a lamp-head. The lamp can be moved into almost any position, and the balancing device will maintain the position until moved again. The same overall mechanism can be employed in other devices with similar requirements ...
Joseph Lucas (12 April 1834 – 27 December 1902) was a lamp manufacturer and the founder of electrical equipment manufacturer Lucas Industries. Monument at Great King Street North, Birmingham blue plaque
The lamp used a similar design to an Argand lamp, adding a parabolic reflector behind the lamp and a magnifying lens made from 4-inch-diameter (100 mm) green bottle glass in front of the lamp. A similar variant using a parabolic reflector was created by the inventor of the Argand lamp, Aimé Argand.
Magnifying glass on an arm lamp The magnification of a magnifying glass depends upon where it is placed between the user's eye and the object being viewed, and the total distance between them. The magnifying power is equivalent to angular magnification (this should not be confused with optical power , which is a different quantity).
How to watch or livestream. ABC News will have comprehensive coverage of the inauguration throughout the day. The network's coverage will begin with a special edition of "Good Morning America" at ...
IEC 60061 Lamp caps and holders together with gauges for the control of interchangeability and safety; IEC 60062 Marking codes for resistors and capacitors; IEC 60063 Preferred number series for resistors and capacitors; IEC 60064 Tungsten filament lamps for domestic and similar general lighting purposes – Performance requirements
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