Stolen Isaac's Flashcards

Lighting Designer

Person responsible for the design, installation, and, occasionally, the operation of the lighting and special electrical effects associated with lighting used in the production.

Assistant TO THE Lighting Designer

Provides general assistance to the LD. May or may not be present at the venue of the production.

Assistant Lighting Designer

Provides "design based"assistance to the LD. May draw any and all of the paperwork on the design or installation as requested by the LD.

Associate Lighting Designer

Performs all of the duties of the LD while under the artistic direction of a more senior designer.

Programmer

configures the control systems that determine how conventional and/or moving lights function during the run of a show.

Master Electrician

Person who is directly responsible for the acquisition, installation, and maintenance of all lighting equipment and the supervision of the crews who hang, focus, and run the lighting equipment during the production.

Electrician

Hangs, focuses, circuits, gels, and patches all fixtures in a production.

Scenographer or Scenographic Designer

Person responsible for the overall look of the scenery, costumes, and lighting on a show.

Look

the way the light appears onstage during a particular cue

Hanging

Placing a theatrical fixture in the position specified in the design

Circuiting

connecting a lighting fixture to it's specified power source.

Running

controlling or operating some aspect of a production.

Boom

a vertical pipe with a heavy base that is used as a hanging position for lighting fixtures.

Lamp

a lighting fixture's "light bulb"

Hard patch

to physically connect a circuit to a dimmer.

Soft Patch

To connect a dimmer to a channel

Gel

color media made from plastic; to insert color media in a color frame and place the frame on a lighting instrument

Light Board

generic term for a control console.

Cue

A directive for action- for example, a change in the lighting.

Fade

to change the intensity level of a light.

Patch Panel

an interconnecting device that allows you to connect any stage circuit into any dimmer.

Repatch

To remove one circuit from a dimmer and replace it with another during a performance.

Mask

To block the audiences view of backstage equipment and space

repertory theatre

a company that presents several plays alternately during one season.

Changeover

exchanging sets, costumes, and properties, as well as making adjustments to lighting and sound between productions.

How fast does light travel?

186,281 miles per second.

An electrical device that controls the intensity of a light source connected to it is called a:

Dimmer

What is a "production concept"?

The creative interpretation of the script that will unify the artistic visions of the production design team.

What are the controllable qualities of light?

Distribution

Intensity

Movement

Color

Instruments are:

Lighting fixtures designed for use in the theatre.

"If you ask most people who walk in and tell you they want to be lighting designers what kind of weather we're having—what's it like outside?—half of them won't know how to describe it, if they remember it at all. They simply don't know how to see."

ANSWER for yourself

In humans, what two primary elements control our emotional reaction to what we see?

instinct and learned response

The Lighting Designer is:

The person responsible for the appearance of the lighting during a production.

Complete this quote from the text: "All creative art, regardless of field, is comprised—in equal parts—of _________________ and __________________"

Inspiration and Craft

What does the term "color media" mean?

Any material used to color the light emitted by theatrical lighting.

This is the type of circuit where all of the electricity flows through every element of the circuit

Series Circuit

It doesn't matter if all elements of a cable are of the same electrical rating.

False

What is the purpose of fuses and circuit breakers?

to protect circuits from overload

T or F: Ohm's law states: As voltage increases, current increases; as resistance increases, current decreases

True

is the origin of electrical potential

Magnetism

A ______ _______ is created when a very large surge of current causes a portion of a conductor to explosively melt.

short circuit

A _______ ______ is a particle that has broken away from its home atom.

free electron

What is the purpose of the ground wire?

To provide a low-resistance path to prevent short circuits

Pigtail

The electrical cable containing hot, neutral, and ground wires used to connect a lighting instrument to a power source such as a dimming system

Plug

The male portion of a connecting device

System Ground

The grounding point for an electrical system

Grounding Plug

A plug that connects to ground in addition to electrical service

Service Panel

Also known as a fuse box, normally contains a primary power switch for the area being served by the panel as well as circuit breakers or fuses for the individual circuits in that area

Disconnect Box

Contains a main disconnect, but no circuit breakers for individual circuits

The acronym NEC stands for:

National Electrical Code

Electrical wires and cables are designed to carry specific current loads

True

A fuse has a bi-metal device that trips open when heated by excess current, breaking circuit continuity

False

What is the mathematical formula used to express power? ________

W=VA

This is the central part of an atom.

nucleus

Control devices such as switches, dimmers, fuses, and circuit breakers are always placed on the neutral leg (white wire) of a circuit

False

The _______ _______is the outermost shell of orbiting electrons in the structure of an atom.

Valence Electrons

The insulation of hot wires in electrical circuits is colored

Red and Black

10 gauge

25 amps, 3000 watts, fuse 25 amps

12 gauge

20 amps, 2400 watts, fuse 20 amps

14 gauge

15 amps, 1800 watts, fuse 15 amps

16 gauge

6 amps, 720 watts, fuse 6 amps

18 gauge

3 amps, 360 watts, fuse 3 amps

The insulation of ground wires in electrical circuits is colored

Green

The insulation of neutral wires in electrical circuits is colored

White

______ _______ is the flow or movement of electrons through a conductor.

Electrical Current

This is the unit measurement of power required to do work

Watt

DC power can be transmitted over long distances without a severe loss of voltage

False

If you don't know what you're doing, just go for it, it will be a great learning experience.

False

What is the smallest particle of a chemical element that retains the structural properties of that element. Known as the building block of nature.

Atom

The chemical reaction in batteries, which transfers electrons, is an example of what?

Direct Current

You should allow the build up of corrosion, paint, grease, dust, etc. as these will help insulate circuits.

False

What is the mathematical equation used to express Ohm's law? _________

V=W/A

An overload occurs when the current flowing through a circuit is greater than the minimum current for which the system was designed

False

Always disconnect a plug by pulling on the body of the connector, not the cable

True

A lamp with a high color temperature will not necessarily burn brighter than another lamp with a lower color temperature

True

When storing an ERS instrument, you should be sure to push the shutters all the way in to prevent accidental bending

True

What is the main characteristic, mentioned by the text, which makes LEDs an exciting potential light source for use in stage lighting fixtures? _______

Efficiency

what term refers to a comparison of the intensity of light emitted by a lamp with the intensity of light emitted by the instrument?

Efficient

Refers to a beam of light, the output of which has a noticeable hot spot in its center when measured perpendicular to the axis of the beam.

Peak

This is the term used to describe the Pyrex glass or synthetic quartz container for a lamp filament and gaseous environment. ______

Bulb

A lightweight metal holder for color media that fits in a holder at the front of a lighting instrument

color frame

A device with movable overlapping metal plates, used with an ellipsoidal reflector spotlight to change the size of the circular patter of light

Iris

Fresnel spotlights are normally identified by the diameter of their lenses, which is typically what?

3,6,8

The blackbody radiator is a device used by scientists to detect changes in the color of light as it is heated.

True

What is the term used to describe the distance from the lens at which the light rays converge into a point? _______ _______

Focal Length

The color of light is measured by using the light temperature scale.

False

Which description best fits this lens profile?

Convex-Concave

A pipe, hung in the wings, running downstage to upstage; often used for hanging masking and/or lighting equipment

Tab Pipe

An ellipsoidal reflector spotlight with movable lenses that allow the focal length to be changed

Zoom Ellipse

Finish and shape determine the characteristics and effectiveness of what?

Reflectors

Which description best fits this lens profile?

Piano Convex

In general, the lowest usable light level of an unfiltered fixture, a lighting instrument without color media, is approximately how many footcandles?

50

A glass color medium for use with striplights; frequently has diffusing properties.

Roundel

The point where a fixture's light output diminishes to 10 percent of the output of the center of its beam

Field Angle

By adding secondary colors, such as yellow, cyan, magenta, etc., to primary colors in LED fixtures, manufacturers are doing what?

Enhance Color Mixing, Increasing output

The variable-focal-length ERS, an extremely versatile instrument is also known as the

zoom ellipse

Any light that is visible outside the clearly defined edge of the fixture's projected beam

Spill Light

A piece of equipment made of a vertical pipe, a heavy base, and possibly cross bars

Boom

If you happen to touch the bulb you should wipe it clean with a soft cloth and vinegar or rubbing alcohol

True

What is the term given to specialized clamps used to fasten pipe together for temporary structures such as scaffolding and temporary hanging positions for lighting instruments?

Roto-Lock