final Flashcards
(85 cards)
1
Q
two major groups of photo receptors in the eye are
A
rodes and cones
2
Q
a unit measurement of light on a surface
A
foot-candle
3
Q
in layered lighting design, nam four basic types of layered lighting
A
ambient, task, accent, decorative
4
Q
the four types of glare are
A
direct, indirect, discomfort, disability
5
Q
unit of measurement of light output of a lamp
A
lumen
6
Q
lighting technique that places lighting close to object or wall
A
grazing
7
Q
a lower number in kelvins relates to a BLANK color, while a higher number to a BLANK color
A
yellow, blue
8
Q
adaption of the eye occurs when the
A
the pupil opens and closes when going from light to dark spaces
9
Q
the eyes field of vision is
A
65 or (65+65=130)
10
Q
accent lighting
A
draws attention to an object
11
Q
the steps of the lighting design process are
A
project planning, programming, schematic design, design development, contract docs, contract administration, evaluation
12
Q
the color correlated temperature (CCT) is
A
the wavelength of the colors in nanometers, are defined around the perimeter of the color triangle and spectrum of colors
13
Q
sustainable design is
A
a build environment that focuses on products and processes that protects the environment
14
Q
name the seven categories of luminaries
A
- recessed
- pendant or suspended
- structural/cove
- downlight
- floor lamp/decorative
- task light
- spot/accent light
15
Q
fiber optic luminaries are includes
A
illuminator
16
Q
daylighting used in lighting is
A
specific to bringing natural light into building
17
Q
name three types of transmission
A
direct, diffused, mixed
18
Q
one foot-candle equals
A
10.76 lux
19
Q
which is another name for LED lighting
A
solid state lighting (SSL)
20
Q
what are two advantages and two disadvantages of natural light sources
A
adv: good for health and circadian system, high CRI
disadvantages: might cause glare and fading of materials
21
Q
photometry is the
A
measurement of the intensity, brightness, or properties of light
22
Q
colors in lighting that additive to make white light?
A
R. G. B.
23
Q
a luminare prouces 90-100% uplight has the CIE classification of
A
indirect
24
Q
what is efficacy
A
lumens per watt
25
mean lumen is
average light output over life of lamp
26
the American's with disabilities act specifies
-wall mounted luminaries should not extend more than 4 inches
27
out circadian rhythms disruption can affect
sleep lord, depression and anxiety
28
the measure of persons ability to distinguish fine detail is called
visual activity
29
photobiology is the science that examines the interaction of light and living organisms
true
30
melatonin stops producing around what time
7:30am
31
what does CRI stand for? and what is the range of it?
color rendering index, ranges from 0-100
32
what is the degree of warmness or coolness of a light source, measured in kelvins?
color temperature and chromaticity
33
what is illuminance? and what are the system of units for it?
total amount of light falling on a surface, measured in lux or foot-candle
34
what is glare? and what are the types by origin and by effects on people
excessive brightness, direct, indirect, disability, and discomfort
35
brightness is the result of the interaction between an illumination level and the amount of light reflected off various surfaces, known as reflectance
true
36
name two types of transmission from glass
direct, diffused, mixed and transmission
37
the visible light spectrum ranges from about
400nm to 750nm
38
what is included in layered lighting
general, task and accent lighting, decorative
39
of the three color temperatures listed, which ones contains the highest content of blue?
5000K
40
the vision process path is as follows
pupil, iris, lens, cornea, retina
41
what is inter reflection
when light is trapped/reflects between two surfaces
42
which elements can reduce glare for a luminaire
a. shade
b. baffle and louver
c. lens
ANSWER:ALL
43
BLANK increases stimulation an impression of pleasantness
adaptation
44
what is charette
lighting designers, interior designers and other professionals involved in the project engage in a comprehensive brainstorming process
45
what does an RCP include
- location of luminaries
- dimensions/spacing
- symbol legends
- mounting heights
- location of switches, sensors, outlets, circuiting/wiring
46
what is included in a physical assessment of the programming phase
- site visits creating inventory of the luminaries.
- determination of luminaries
- situation architectural features/details
- location of electrical outlets, controls
- taking photograph of interior daylighting consideration
47
observations should occur at different
times of the day
48
in the design development phase, layouts and lighting systems are presented to the client
true
49
what is the purpose of the design development phase
in the design development phase, lighting concepts are devised and prepared in the form of presentation media and specifications of products for clients approval. This process formulates the creative ideas
50
ideal situation is to combine the results of the surveys and interviews with
field observation
51
the primary purpose of field observations is to watch how people behave in a specific lighting environment
true
52
what phase is used to determine user satisfaction with lighting design
evaluation (post occupancy evaluation)
53
what is sustainable design
focuses on the interaction of the earth, society, the economy, and the built environment but conserving resources, minimizing waste, and creating healthy environments for current and future generations
54
what is EIA
energy information administration
55
light pollution is
excessive illumination in the sky from electrical sources
56
who is responsible for educating their clients in sustainable lighting
lighting/ interior designer
57
how lighting can affect the energy conservation directly and indirectly
directly by power consumption to light up the space. indirectly by air conditioners to consume energy in order to cool down the heat produced by lights
58
what are the goals in specifying lighting systems for a sustainable design? (3 items)
- minimize energy consumption
- reduce light pollution and light trespass
- maximize daylight
- eliminate toxic substances
- recycle lamps
59
name spaces with floor and desk work planes
office work stations, meeting rooms (work plan is on the desk_, corridors/hallways, lobbies (work plan is on the floor)
60
what does not lumen method (zonal cavity method) calculate?
illuminance on vertical surfaces. illuminance on slanted surfaces
61
what are laws of gestalt
the basic principal that lies behind our ability to distinguish between shapes and background is once again evident here: our unconscious search for order in our visual field. closed forms, proximity, linking line, etc.
62
the brightness/ lightness of surface depends on
a. its immediate surroundings
b. opposite surfaces
c. ceiling surface
63
the spatial impression (the perception of elevation and depth) is determined by the direction of the light
true
64
room cavity is the
space from work plane to the light fixture
65
illuminance patterns should be in accordance with the architecture
true
66
uniform lighting with diffused light create BLANK shadows
softer and less distinct
67
light distribution that is not aligned with the architectural structure of the space is perceived as BLANK that do not relate to the space
disturbing patterns
68
an occupancy sensor detects movement in several different ways. two of those ways are through infrared and sonic detection
true
69
you have a single-phase electrical circuit that has a sum total of 1800 watts and an amperage of 7.5: what is the voltage
240 volts
70
taking the same parameters from above what would your amperage be if the voltage was 120 volts
15 amps
71
BLANK detect illumination levels and adjusting the lights to specific brightness
photosensors
72
the CIE states that there are BLANK luminaries light distributions
6
73
name 4 different types of dining systems used to control lights (regardless of digital or analogue)
DMX, DALI, KNX, phase cut dimming, 0-10V
74
compare electronic transformers vs. magnetic
magnetic transformers are heavy, noisy and larger than electronic transformers. they are also cost effective and reliable. They have a steel core, encased in copper wire. electronic transformers have an electrical circuit and are lightweight
75
commissioning is a systematic process of ensuring that all building systems perform interactively according to documents design intent and the owners operational needs
true
76
semi-recessed luminaries are installed part in the ceiling and part outside of the ceiling
true
77
name 3 different spaces that fixtures with IP rates are required
outdoor spaces, bathrooms/restrooms, kitchens, SPA/swimming pools, spaces with any unground lighting etc.
78
lighting control zones are also related to lighting circuits
true
79
a main issue with transformers is
voltage drop
80
KNX device can control lighting, blinds, HVAC, energy, management, audio/video, displays, remote controls, etc
true
81
0-10V dimming works by varying the DC voltage supplied to the LEDs-between zero volts BLANK and 10 volts BLANK
OFF-100% brightness
82
which dimming systems is an addressable communication interface for lighting systems
DALI
83
what are the 2 tunable lighting and explain them briefly
color turnable: changing colored light from red to blue.
| White turnable: changes the color temperature from cool to warm
84
dimmers are devices that can change the brightness of the lights by changing the voltage waveform
true
85
how many RGB (3colors) lights you can control in single DMX 512 universe
170
