C412 Flashcards
It is the earliest known unit of illumination still used today.
Foot-candle
A German chemist invented a more efficient vacuum pump in 1865 which was critical to the development of incandescent light bulb.
Herman Sprengel
He first developed a working incandescent light bulb using carbon-filament lamp.
Joseph Swan
When did Joseph Swan first developed a working incandescent light bulb using carbon-filament lamp.
February 5, 1879
He first announced the successful development of an incandescent lamp with a baked carbonized cotton thread filament in December __________.
Thomas Alva Edison, December 21, 1879
In what year did Edison Electric Light Company powered incandescent streetlights and lamps in parts of London and later in New York?
1882
Edison Electric Light Company was later knows as _____________________.
Consolidated Edison Company
On August _____________, the Niagara Falls Power Company became the first commercial utility to produce and transmit hydroelectric power.
August 26, 1895
In what year did General Electric introduced fluorescent lighting, an electric light source that is more efficient than the incandescent lamp.
1939
They are the ones that developed technical standards, specifications and design techniques that govern the design and construction of building lighting and electrical systems.
Professional Organization
Are model code that specifies the minimum provisions necessary for protecting people and property from the use of electricity and electrical equipment.
National Electrical Code (NEC)
It addresses energy consumption in commercial and high-rise residential buildings.
ASHRAE/IESNA 90.1
It is the branch of physics that relates to the properties of light and the function of vision. It involves a study of the human visual system and how it interacts with light.
Optics
The _____ is the organ that allows a human to sense light and produce electrical impulses that will be sent through the optic nerve to the brain. It functions much like a simple, very crude camera.
Eye
The _______ is that part of the visual system where the impulses are processed.
Brain
Rays of light pass through the transparent ___________ of the eye and through and opening called the _________.
cornea, pupil
It surrounds the pupil and adjusts for the amount of light available. It opens and closes to control the quantity of light the interior of the eye receives.
Iris
It is a transparent ellipsoidal medium that changes thickness, allowing it to bend and focus the rays of light entering the interior of the eye.
Lens
It is composed of nerve cells with photoreceptors that are shaped like rods and cones.
Retina
It is the inability to distinguish colors.
Color blindess
