Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

175A Lighting > Final > Flashcards

Final Flashcards

1
Q

Intensity

A

The relative brightness of light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Color

A

The element of light that people tend to notice first. A psychological property that is perceived by the human retina.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Distribution

A

The direction, shape, size, and quality of light; or the character and texture of light.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Movement

A

The quality of light and how it travels/moves in

  1. Time
  2. Space
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Describe how the controllers talk to the fixture (the path)

A

Controllers talk to dimmer, dimmer talks to fixture, all happens through DMX.

From block diagram:

  1. Cue and Submasters from controller
  2. DMX
  3. Dimmer Rack
  4. Conduit
  5. Drop Box
  6. Dimmer
  7. Channel
  8. Light comes on
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Cue

A

A cue is just a scene if lighting.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Dimmer

A

Electrical apparatus that powers the light fixture and controls their brightness by changing the voltage supplied to them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

DMX

A

Virtual address controlling the signals to fixtures. Usually fixture takes multiple DMX addresses. For example, a typical RGB LED takes 3 DMX addresses (1 for red, 1 for green, 1 for blue). So if you set the DMX address of the LED as 001, you need to save 002 and 003 for the same LED, and your next LED will start at 004, taking 004-006).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Submasters

A

Programmable fader (manual control) used for direct, live control over a group of lights. And to control house lights and work lights. And emergency light.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Channel

A

“Official routes of communication”

The chain of devices from the input control apparatus to the dimmer.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Primary colors of light

A

Red, Blue, Green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Retina

A

Part of the eye that is stimulated by light waves and creates images in the brain or something
Cones=color
Rods=Black & White

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Collaboration (of a Theatrical Production)

A

It’s important because theater/performance requires communication and many departments working together
“It takes a village”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Director/Choreographer

A

In the food chain they’re under the Producer

They create the content

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Producer

A

At top of chainHas great appetite
The producer is responsible for the overall financial and managerial functions of a production or venue, raises or provides financial backing, and hires personnel for creative positions (writer, director, designers, composer, choreographer—and in some cases, performers)
Under producer is the:
Development director, company manager, Creative team includes choreographer, composer, director, scenic designer, costume designer, lighting designer, sound designer, projection designer
Production team includes production manager, technical director, master electrician properties department, wardrobe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Scenic designer

A

Lead designers creates environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Costumes designer

A

Dresses performers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Light designers

A

Designs light, focuses on audiences, tries to capture their attention and tell them where to look, the binding agent of everything the theatrical design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Sound designers

A

Designs sound, unless there is a living composer then the composer jumps up with scenic director

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Video

A

Sub to scenic and creates projections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Plot

A

A map of where lighting fixtures are in the theater, defining space, entrances, exits, walls, foot markings, centerline, quarter line, and playable space.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Ground Plan (Plan View)

A

This is a type of architectural drawing, the appearance of building as seen from above (birds eye view). A map of the space.
In Architecture this is the Base Drawing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Section View (or elevation)

A

Like looking from the audience
Section/elevation=side or front view, tells you height
Tells you what the birds eye view can’t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Paper work

A

“A lighting database, derived from the plot, with 9 primary fields sorted for their intended use”. The 9 fields fall into four categories: location, fixture, description, purpose, and control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Hookup (channel schedule)

A

Organized by channel number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Position

A

Where the fixture is on a pipe, counting from either side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Channel

A

Digital control handle for each light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Dimmer

A

Electrical apparatus that powers the light fixture and controls their brightness by changing the voltage supplied to them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Fixture

A

Lighting instruments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Purpose

A

Intended use of the fixture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Color

A

Gel color for that fixture

Major manufacturers are: Lee, Rosco, GAM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Unit #

A

Where on the pipe the fixture is located

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

GOBO

A

A piece of a delicately cut metal template or stencil that gives a pattern to the light. Used in an ellipsoid.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Instrument schedule

A

Part of the paperwork, database organized by hanging positions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Magic sheet

A

A sheet that shows the coverage and temperatures of instruments, grouped by their direction (front diagonal, high side, etc. ) one of the last things you do in the process. Channel number drives the magic sheet*

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Spacing sheet

A

A sheet used to track blocking of performers, wing position, and map out movement in a form of a visual story board

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

1st electric

A

The first pipe that hangs fixtures, counting from the proscenium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Raceway

A

Circuit distribution system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Multi cable

A

Cables that carry multiple discrete channels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Source 4 Ellipsoidal

A

oidal

The most common focusable fixture.
Offers the most versatility & control.
Principal tool for theatrical LD’s.
One or two plano-convex lenses or one step lens.
Newer units create an even field with little or no diffusion.
Field has a well-defined edge.
Can be changed from sharp to fairly soft by
altering the lens/lamp relationship.
When the edge is sharp, the unit is in focus.
Optics allow the projection of images.
Shutters: for coverage control.
Shape the field.
Mask unwanted light.
Iris: for size control.
Frame round objects.
Can project patterns.
Used where the ability to cut off scenery and architecture is needed.
Front Washes
Area Light
Sidelight
Diagonal Backlight
Pools
Specials

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Fresnel

A

A single Fresnel lens.
A spherical reflector.
Soft-edged, diffuse beam, circular field.
Vary the size by moving the lamp/reflector.
Lamp forward = flood focus: largest pool.
Lamp back = spot focus: smallest pool.
Control beam with Tophats & Barndoors.
Valued for their ability to blend seamlessly.
In higher wattages, good for saturated
color washes.
Used in Backlight & Downlight.
Can create soft-edged Pools.
Can be used as Area Light from on-stage
positions. Not useful front of house.
Can be used as Sidelight in some cases.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Par

A

The most basic lensed fixture.
A sealed-beam lamp containing the source,
the reflector and the lens in a fixed
relationship.
Lamp: Parabolic Aluminized Reflector.
The field is oval or oblong.
Very hot center, very sudden fall off, very
wide spill: hard to control.
Too little control to be widely useful in the
theater.
Most useful in Backlight and Downlight applications.
A good fixture for saturated color washes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Floodlights/ Cyc light

A 
Used to create a smooth, edge-less wash.
Used primarily on drops and scenery.
Floodlights include:
Scoops.
Cyc (cyclorama) lights.
Striplights: which are Lamps of the same type
mounted side by side in a long box
separated by baffles.
designated by:
Type & wattage of lamp.
Number of circuits (colors).
Length of unit.
Number of lamps per circuit.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

C-Clamp

A

A clamp that is C-shaped and secures the fixture to the pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Yoke

A

Allows fixture to tilt/pan

46
Q

Pan Bolt

A

Secured yoke to C-Clamp

Allows to pan

47
Q

Tilt handle

A

Secures fixture to yoke

Allows to tilt

48
Q

Running the barrel

A

Adjusts the sharpness of the edge

49
Q

Beam angle

A

A measurement of size. Beam angle stops at where light falls to 50% as bright as the peak brightness of the center

50
Q

(Field Angle)

A

Similar to beam angle, but it is defined as where the light falls off to 10% as bright as the peak brightness of the center.

51
Q

Spot

A

A mode in a Fresnel where the lit area is the tightest

52
Q

Flood

A

A mode in a Fresnel where the kit area is the widest

53
Q

Shutter

A

Metal piece that shapes the pool and masks unwanted area

54
Q

Pattern slot

A

Where you insert a GOBO in an ellipsoidal

55
Q

GOBO

A

A piece of delicately cut metal or stencil that gives a pattern to the light. Used in an ellipsoid

56
Q

Rotating the barrel

A

Sharpening the edge of the light

57
Q

Color frame

A

Gel frame, used in an ellipsoid or fresnel

58
Q

Safety cable

A

A metal cable that ties the light to the pipe in case the c-clamp came loose

59
Q

Scroller

A

A box in front of an ellipsoidal or a fresnel that can scroll through a selection of color gels

60
Q

Movers (revolution, TW)

A

Revolution (moving source 4, shutters, hard/soft edge, patterns)
TW (moving fresnel, good color addition)

61
Q

LED

A

Different than incandescents (because they use much less energy, last longer, and has more variant colors)
Not too worry too much??

62
Q

Dynamics

A

Dynamic shifts; changes in tone, speed, emotion, music, focus, actor, or scenery

63
Q

Relative intensity

A

The intensity compares to how bright everything is. Aka everything is relative.

64
Q

Cues

A

A signal or indication for a specific action to be executed.
Ex) lights come up, belly flop

65
Q

French scene

A

A change in human scenery, dynamics, emotional intensity, and composition.
When someone, or a group of people, enter or exit.

66
Q

Purpose of stage lighting

A
  1. Selective visibility
  2. Revelation of form
  3. Composition
  4. Mood
67
Q

Key light

A

The main source of light in a scene

68
Q

Fill light

A

A light that compliments the key light, soften a shadow, interject additional information

69
Q

Lumen

A

The measure of brightness

70
Q

Colorcut List

A

“Shows all the colors required by the show, and calculates the number of each cut size required per color”
Pinpoints color through specific fixtures, hanging positions, and shot order
“Organized by color manufacturers and then by color numbers, specific size and quantity of each filter”

71
Q

Circuit

A

A conductive path through which electricity flows

72
Q

W=V(A)

A

Watts=Volts(Amps)

73
Q

Controller (Console)

A

The light board itself

74
Q

EOS

A

The name of the family of Lighting Control System that we use-the program/software itself

75
Q

ETC

A

The manufacturer of almost all theatrical instruments and the stakeholders of our happiness

76
Q

Soft patch/address

A 
Attach a specific dimmer to a designated channel; performed through the console 
#DMX
77
Q

Remdim

A

Bring up the specific channels while bringing down all other lights. Old short hand for “dimming remaining lights”

78
Q

Record

A

Document the current settings for light fixture(s)
(Intensity, color- if LED or color scrollers; position, if movers, etc.) into a cue, followed by a number time (fade-up/down); can add auto follow or hang

79
Q

Blind/live

A

Blind: An option to make changes to previous cues on the console without affecting lights in real time; changes are automatically saved without recording.

Blind: Turning on channels in command =/= Lights turning on

Live: Every command directly affects the lights

80
Q

Angle of reflection

A

Angle of incidence

81
Q

Transparent

A

Allows light to pass through

82
Q

Translucent (semi-transparent)

A

Allow lights to pass through, but not detailed images to pass through

83
Q

Boom/tree

A

A metal pole on which lights can hang. Usually placed on the wings of the stage.

84
Q

Experience Filter

A

How the influence of language, culture, or external forces affects perception

“FILTERING THROUGH YOUR KNOWLEDGE AND EXPERIENCE”

Ex: Not having the word “blue” in some cultures/languages results in the lack of identification and organization of the specific color. And thus, they cannot perceive the distinction of blue from the neighboring, analogous colors

85
Q

Sensory Fatigue

A

The body desensitizes/adapts to an extreme stimulus that new stimuli are ignored

Ex: staring at the sun for too long and cannot see details in everything else after a duration of exposure

86
Q

Sequence of Experience

A

From light to dark; ramping up intensity or effects in a sequential fashion to build drama

“Sequence of sensory input compliments your perception of an input”

87
Q

Palette Cleanser

A

Rest/wipe/reset dynamics
Ex: Blackouts in 70 Scenes allows new information to be processed by your poor inadequate brain (Lol)
Ex: a blinder

88
Q

Rack the Cut

A

Crop/Shape the Light

89
Q

Spherical Reflector (Fresnel)

Don’t need to know multipliers

A

Circle (sphere) has 1 focal point
Light reflects back through the source
In a Fresnel, lamp and reflector always move together
Soft edged, diffused beam
Diffusion due to stepped PC lens, and diffusion surface
Circular beam pattern
USES: Primarily a backlight, sometimes top light

90
Q

Ellipsoidal Reflector

Don’t need to know multipliers

A

Ellipse has 2 focal points
Light bouncing off an ellipse travels through 2nd focal point
This causes ‘image’ to reverse
Lamp is adjustable inside reflector to adjust hot or flat field
USES: Fronts, pools, specials, sides; most versatile fixture

91
Q

Parabolic Reflectors (PAR)

Don’t need to know multipliers/beam spread

A

Light from focal point reflects off parabolic reflector in parallel beams
Sealed beam lamps (PAR, old car headlights) have lense, lamp, reflector
Oval beam pattern
Very hot center, very fast fall off, very wide spill
USES: Backlight and downlight alternative

92
Q

Focal point

A

“The point at which rays or waves meet after reflection or refraction, or the the point from which diverging rays or waves appear to proceed”

93
Q

3 components of a fixture

A

Lamp: fiat lux

Reflector: bounce lux back
Reflector Shape: 
              Ellipsoidals - ellipse 
              Fresnels - circle
              PAR - parabola

Lens: spread out/concentrate lux
Lens Shape:
Ellipsoidals - Plano-Convex
Fresnels - Plano-Convex + Spherical
PAR - a series of gridded, frosted lens

94
Q

Primary/secondary focus

A

Where you should look first
Where your secondary focus should be

Ex) primary focus =Jeff and Joan
Secondary = monsters

95
Q

Key light

A

Main source of light on stage in a scene

96
Q

Fill light

A

The light that compliments the key light/softens a shadow/interject additional information

97
Q

Isolation

A

Isolating subjects with light

98
Q

Wash

A

Aka flood of light

99
Q

High sides

A

Lights from high above the ground to either side of the lighting object

100
Q

Shins

A

Lights from the side but at height of your shin

101
Q

Gels

A

A transparent colored material that filters all but a selective band of wavelengths. Varies by transparency and color

102
Q

Additive mixing

A

Mixing all primary colors=white
In theater, an example would be having two lights with different colors to shine in the same unpigmented surface

Ex) in LED lights

103
Q

Subtractive mixing

A

Mixing all primary colors=black

In theater, an example would be using a color gel to filter white light into red light since all other non-red wavelengths are filtered out.

Ex) in pigments

104
Q

Rods

A

Perceived brightness

Peripheral vision used for low light perception.

105
Q

Cones: red, green, blue

A

Perceived color, sensitive to different wavelengths of light (RGB)

106
Q

Primary colors of light

A

Hues that cannot be mixed
Red, Green, Blue -Additive

Red, yellow, blue -subtractive/color theory

107
Q

Secondary colors of light

A

Can be produced by mixing equally/33% with primary colors

Orange, purple, black etc.

108
Q

Color temperature

A

The measure of white light and spectral properties of a light source in degree kelvin

Ex) 3,200 degrees = Tungsten Halogen=stage light

109
Q

Saturation

A

How rich a color is

Chromatic density

110
Q

Transmission

A

The percentage of filtered light emitted from a source

175A Lighting (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions