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Joel Solon Spira (March 1, 1927 – April 8, 2015) was an American inventor, entrepreneur, and business magnate.. He invented a version of the light-dimmer switch for use in homes around the United States and led his Lutron Electronics Company into the production of lighting controllers.
Shading coils (copper bars) within the magnetic circuit of the field coil The shaded-pole motor is the original type of AC single-phase electric motor , dating back to at least as early as 1890. [ 1 ]
Various window blind styles. A window blind is a type of window covering. [1] There are many different kinds of window blinds which use a variety of control systems. A typical window blind is made up of several long horizontal or vertical slats of various types of hard material, including wood, plastic or metal which are held together by cords that run through the blind slats.
Furthermore, modern lighting technology solutions, such as intelligent LED light systems or daylight and shading technology, used by LaaS vendors result in a lower energy consumption, thus lower energy costs as well as the reduction of carbon emissions and a healthier lighting in general. [21]
A carbon filament lamp using chlorine to prevent darkening of the envelope was patented [2] by Edward Scribner of the US Electric Lighting Co. in 1882, and chlorine-filled "NoVak" lamps were marketed in 1892.
Electroluminescent wire (often abbreviated as EL wire) is a thin copper wire coated in a phosphor that produces light through electroluminescence when an alternating current is applied to it. It can be used in a wide variety of applications—vehicle and structure decoration, safety and emergency lighting, toys, clothing etc.—much as rope ...
An industrial electric motor . An electric motor is a machine that converts electrical energy into mechanical energy.Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.
La Sombrita (Spanish for "The Little Shade") is a prototype sunshade created for the Los Angeles Department of Transportation (LADOT). [1] Its purpose was to assist bus riders by offering shade during the hottest hours of the day and providing sidewalk lighting at night. This was especially targeted at locations where the swift construction of ...