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Revalida > ILUMINACION > Flashcards

ILUMINACION Flashcards

1
Q

VOCABULARIO

quality ligth-stabilized plastics used in making diffusers and lenses

A

arcrylic

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2
Q

VOCABULARIO

recesses fixture supplies or returns air to or from a room

A

air-handling

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3
Q

VOCABULARIO

surrounding envirometn of fixture or ballast

refers to temp. or sound conditions

A

ambient

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4
Q

VOCABULARIO

auxiliary device used with flourescent, mercury vapor, metal haide & high pressure sodium lamps.

A

ballast

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5
Q

VOCABULARIO

lumens containes within the beam spread of a floodligth

A

beam lumens

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6
Q

VOCABULARIO

a term used to express candlepower

(cd)

A

candela

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7
Q

VOCABULARIO

intensity of ligth given off by a ligthsource in a particular direction

(cp)

A

candlepower

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8
Q

VOCABULARIO

upper, lower or intermediate zone of a room designated as ceiling, floor or room cavity

A

cavity

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9
Q

VOCABULARIO

geometric proportios of the ceiling, floor and room cavities

(CR)

what is the formula?

A

cavity ratio

room length = room width

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10
Q

VOCABULARIO

% of a light fixture that reaches the seeing task

(CU)

A

Coefficient of Utilization

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11
Q

VOCABULARIO

% of ligth from a floodligth that reaches the seeing task relative to the beam lumens

(CU)

What are the factors?

A

coefficient of beam utilization
Factors:
Fixture effieciency, distribution and mounting height
Room proportions
Room- surface reflectances

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12
Q

VOCABULARIO

see lens

A

diffuser

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13
Q

VOCABULARIO

relationship of lamp lumens to watts required to generate the lumens and expresed as lumens per watt

A

efficacy

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14
Q

VOCABULARIO

see luminaire efficiency

A

efficiency

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15
Q

VOCABULARIO

amount of ligth in footcandles produced by luminous sphere on a seeing task in the center of the sphere that will render the same “seeability” as the raw footcandles render the same task in the sepcific seeing enviroments under consideration.

(ESI)

A

equivalent sphere ilumination

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16
Q

VOCABULARIO

device that hold, protects and provides an optical system and power connections for the lamps

refferd to as interior ligthing

A

fixture

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17
Q

VOCABULARIO

see lumens

A

flux

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18
Q

VOCABULARIO

the amount of ligth falling of ona surface

(fc)

What is the formula?

A

footcandle
fc = lumens/square feet

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19
Q

VOCABULARIO

unit of birgthness as detected by the eye

(lf)

A

foorlambert

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20
Q

VOCABULARIO

excessive brightness either direct or indirect

A

glare

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21
Q

VOCABULARIO

type of ceiling construction where the supporting members (inverted T’s) are exposed and the ceiling tiles and lighting fixtures are laid-in on the flanges of the t’s.

A

grid (lay-in)

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22
Q

VOCABULARIO

industrial lighting where highmounting heights may be encountered

HID- type fixture

A

highbays

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23
Q

VOCABULARIO

family of light source consisting of mercury vapor, metal haide and high pressure sodium lamps

for commercial spaces

A

high intensity discharge (HID)

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24
Q

VOCABULARIO

line that is plotted ona graph or diagram to show all points on a surface where the illumination is the same

A

isolux

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25
Q

VOCABULARIO

the accepted term for all commercial artificial ligthing sources

A

lamp

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26
Q

VOCABULARIO

factor used in lighthing claculations to account for the light loss that thakes place in a lamp due ti the gradual decay in lumes output over a designates perios of burning time. (LLD)

A

lamp limern depreciation

27
Q

VOCABULARIO

the sheilding or diffuser portion of a fixture, made of plastic or glass through whcich ligth passes on its way to the seeing task.

28
Q

VOCABULARIO

the packaged combination of fictures, ballasts, lapsd and sometimes ceilings.

A

ligthing system

29
Q

VOCABULARIO

a series if baffles used in place of a lens to sheild the lamps in a fixture form vier a certain angkes or to block unwantes ligth.

30
Q

VOCABULARIO

used to indicate the total amount of ligth given off by a light source (lm)

31
Q

term for fixture

32
Q

VOCABULARIO

factor used in lighting calculations to account for the ligths loss due to the amount of dirt on the luminare (LDD)

A

Luminaire dirt depreciation

33
Q

the lumens emmites by a luminaire deivided by the lumens generated by the luminaires lapm

A

lumianire efficieny

34
Q

VOCABULARIO

photometric brightness

35
Q

metercandle (lx)

36
Q

VOCABULARIO

% allowance for the decline in the effectiveness of a light fixture (MF)

A

maintence factoe

37
Q

VOCABULARIO

metric equivalent of footcandle (lux, lx)

What are the formulas?

A

meter candle

lx = luemnsa/ square meters
1 footcandle = 10.76 lux
1 lux = 0.0929 footcandles

38
Q

VOCABULARIO

lamp cavity or enviroment designedas part of the light fixture for the purpose of controlling the output

A

optical system

39
Q

VOCABULARIO

certain low brightness louver and reflectos shapes as derives from the geometric shape (curve) called a parabola where if a light source is places at its focal point, the resultant emitted light will be redirectes parallel to the parabolas geometric axis.

40
Q

VOCABULARIO

space between the structural ceiling slab and the finished ceiling

41
Q

VOCABULARIO

a dielectric substance used in ballast capacitators (PCB)

A

polychlorinates biphenyl

42
Q

VOCABULARIO

fixture mounted in ceiling opening so that the housing of the fixtures is hidden from view

43
Q

VOCABULARIO

device used to redirected ligth from a source by the process of reflection

44
Q

VOCABULARIO

device used to redirect ligth from a source by the process of refraction

45
Q

VOCABULARIO

see lens or louver

46
Q

VOCABULARIO

fixture with so air-handling provisions

47
Q

VOCABULARIO

generic term for family of plastic used in the making of diffusers and lenses

A

styrene (polystyrene)

48
Q

VOCABULARIO

any fixture mounted directly on a ceiling ia surface mounted

A

surface mounted

49
Q

VOCABULARIO

any fixture hung from a ceiling by supports (such as chains, hangers, or stems) is suspension or pendant mounted

A

suspension or pendant mounted

50
Q

VOCABULARIO

a recessed ligthing fixture

51
Q

VOCABULARIO

The plane at which level work is usually performed and at which the illumination is specified and measured.

A

work plane

52
Q

VOCABULARIO

an empirical comfort rating system for fixtures as measured in various proportioned rooms at different mounting heigths. (VCP)

A

visual comfort probability

53
Q

VOCABULARIO

a surface or suspension mounted fixture with one piece plastic lens that encloses the lamp compartment on both sided and across the bottom, literally wrapping the lamps (wrap)

A

wraparound

54
Q

VOCABULARIO

the lastes and most advanced method by used the ligthing industry in the determetion of coefficient of utilization of various fixtures

A

zonal cavity

55
Q

LAMPARAS DE PIE Y DE MESA

bottom of shade at eye level when seated

A

aprox. 40”-42” off floor

56
Q

LAMPARAS DE PIE Y DE MESA

bottomof shade sewing, piano

A

minimum 47”

57
Q

LAMPARAS DE PIE Y DE MESA

When both of the shade is above eye level, lamp stem should be about ____ behind shoulder - near rear corner of chair

58
Q

LAMPARAS DE PIE Y DE MESA

minimum height to shade bottom from desk top

59
Q

LAMPARAS DE PIE Y DE MESA

  1. space between wallwashers
  2. space from desk to bottom shade
A
  1. 30”
  2. 14”
60
Q

LAMPARAS DE PIE Y DE MESA

1.space between table lamps
2. space from desktop to bottom shade (stading up)
3. space from desktop to bottom shade (sittind down)

A
  1. 36”
  2. 22”
  3. 15”
61
Q

TEMPERATURA

Standard incandecente:
1.Color temperature
2.color index (CRI)
3.Characteristica

A

1.2750-3400k
2.95+
3.war, standard ligth source, reatively inefficient

62
Q

TEMPERATURA

Tungsten Halogen:
1.Color temperature
2.color index (CRI)
3.Characteristica

A
  1. 2850-3000k
  2. 95+
  3. Brighter, whiter than standar incandecent, more efficient than regular incandecent.
63
Q

TEMPERATURA

Flourecent:
1.Color temperature
2.color index (CRI)
3.Characteristica

A

1.2700-6300K
2.48 to 90
3.wide selection of phosphor colors - warm to cool
4.high efficiency
5.longer life

Revalida (7 decks)

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