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Engineering utilities 1 - Lesson 5 > (3) Types of Artificial Light Sources > Flashcards

(3) Types of Artificial Light Sources Flashcards

1
Q

emit visible light as a result of heating; they incandesce

A

incandescent lamps (I)

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2
Q

the familiar threaded base found with ordinary lamps up to 300 W

A

medium base

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3
Q

a smaller threaded base used in ornamental lighting such as chandeliers

A

candelabra base

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4
Q

a larger threaded base found on lamps that are 300 W or greater

A

mogul base

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5
Q

used in applications where the difficulty or cost of changing lamps is prohibitive

A

long-life lamps

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6
Q

special versions of the standard lamps that are helpful for rough or vibration service

A

rough service lamps

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7
Q

in applications where lamps are broken fairly often

A

plastic coated lamps

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8
Q

used in decorative and accent lighting applications that require good control or highlighting

A

low-voltage lamps

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9
Q

a smaller, brighter, and more expensive version of the incandescent lamp

A

tungsten-halogen lamps/ halogen lamps

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10
Q

produces continuous light by passing electricity through a gas contained within the lamp

A

gaseous discharge lamp

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11
Q

a voltage transformer and current limiting device designed to start and properly control the flow of power to discharge light sources such as fluorescent and HID lamps

A

ballast

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12
Q

the ratio of a lamp’s rated output (lumens) when it is operated on a specific commercially available ballast as compared to light output (lumens) when operated on a reference ballast

A

ballast factor (BF)

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13
Q

composed of a tubular glass bulb that is covered with a thin phosphor coating on its inside surface

A

fluorescent lamp

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14
Q

filament like coils at the end(s) of the bulb that act as terminals for the electric arc

A

cathodes

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15
Q

commercially available in straight, u-shaped of circular tubes in a variety of sizes, wattages, voltages, colors, and types of bases

A

linear fluorescent lamps (LFL)

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16
Q

_____ and _____ fluorescent lamps offer higher light (lumen) output in comparison to standard output fluorescent lamps, but these lamps consume more power and have significantly lower efficacies

A

high output (HO) and very high output (VHO)

17
Q

miniaturized fluorescent lamps

A

compact fluorescent lamps (CFL)

18
Q

7 W CFLs replace ____

A

25 W incandescent lamps

18
Q

11 W CFLs replace ____

A

40 W incandescent lamps

19
Q

13 W CFLs replace ____

A

60 W incandescent lamps

20
Q

19 W CFLs replace ____

A

75 W incandescent lamps

21
Q

23 W CFLs replace ____

A

100 W incandescent lamps

22
Q

the ratio of light (the luminous flux, in lumens) emitted by a fluorescent luminaire to the electrical energy consumed, including the ballast

LER = (EFF x TLL x BF) /W

A

luminaire efficacy rating (LER)

23
Q

EFF stands for _____

A

luminaire efficacy

24
Q

Watts (W) stands for _____

A

luminaire power input

25
Q

BF stands for _____

A

ballast factor

26
Q

TLL stands for _____

A

total rated lamp lumens

27
Q

produce a very bright light by discharging an arc when electrical current passes through a metal gas contained under high pressure in a glass bulb

A

high-intensity discharge (HID) lamps

28
Q

were the first commercially available HID lamps; these lamps are constructed of an internal quartz tube enclosed in an outer glass envelope

A

mercury vapor (MV) lamps

29
Q

constructed in a manner similar to MV lamps except that in addition to the mercury and argon, various metal halides are included in the gas fill

A

metal halide (MH) lamps

30
Q

contain an internal arc tube made of a translucent ceramic material rather than quartz glass because of the high temperature (2350°F/1300°C) at which it operates

A

high-pressure sodium (HPS) lamps

31
Q

really a blend between HID and fluorescent technologies; these lamps are constructed of a large sodium-resistant glass tube containing sodium and a neon–argon gas mixture

A

low-pressure sodium (LPS) lamps

32
Q

combine the luminous efficiency of an HID lamp with the good color rendering capability of an incandescent lamp

A

bended lamps

33
Q

refers to a type of lighting that uses light- emitting diodes (LEDs), organic light-emitting diode lights (OLEDs), or polymer light-emitting diodes (PLEDs), instead of traditional lighting sources that use an electrical filament or gas inside a glass bulb

A

solid-state lighting (SSL)

34
Q

a semiconductor that consists of a chip of semiconducting material treated to create a structure with two electron-charged materials

A

light-emitting diode (LED)

Engineering utilities 1 - Lesson 5 (6 decks)

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