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| 4 controllable qualities of light |
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Definition
- distribution
- intensity
- color
- movement
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| designer's 4 primary goals using light |
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Definition
- influence how an audience sees what's onstage
- selectively illuminate the stage
- sculpt & model what's onstage
- support play's production concept
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| any light striking the side of an object relative to the view of the observer[image] |
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watts = volts x amperes
example:
150w = 117v x a
w = 150/117
a = 1.28
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| what gauge wire do most stage lighting circuits have? |
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| what is the black or red wire? |
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edison connector:
what does it look like? |
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Definition
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edison connector:
when is it used? |
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Definition
| decorative lamps or instruments carrying a SMALL load |
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pin-connector:
what does it look like? |
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Definition
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Term
pin connector:
disadvantages |
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Definition
- easily disconnected
- risk of shock
- pins do not always make good connection
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| twist-lock: what do they look like? |
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Definition
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| when the full stage is lit by one group of lights |
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Definition
| electrical extension cord used to connect instruments to stage circuits |
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Definition
| that portion of the electromagnetic spectrum stimulating visual receptors in the eye |
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Definition
| in this medium the primary goal of the designer is to light the actor's face |
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| in this medium the primary goal of the designer is to reveal the sculptural qualities of the dancer's body |
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Definition
| a unique lighting environment created by the lighting designer |
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| plastic or glass material used to color light emitted by instruments |
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| one of the very first people to receive program credit as "lighting designed by" - often called the "mother of modern lighting design"[image] |
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Definition
pioneer in lighting design, tony award-winning lighting designer; best known for work on the Broadway musicals Dreamgirls and A Chorus Line
[image] |
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Definition
| electrical device controlling the intensity of a connected light source |
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Definition
| lighting instrument with the ability to pivot in order to track an actor onstage |
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Definition
| light originating from directly overhead |
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Definition
light originating from upstage & focused downstage; often used to separate the figure from the background
[image] |
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Definition
| cue that is an INSTANANEOUS change of lighting from "on to off" |
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| cue that is a GRADUAL change from "on to off" |
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| lighting fixtures designed for use in the theatre |
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| generic term used to describe the lighting control console |
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Definition
- author of A Method of Lighting the Stage
- regarded as the first teacher of lighting design in the US
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| the illumination on a surface one square foot in area on which there is a uniformly distributed flux of one lumen |
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Definition
| batten holding lighting instruments |
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Term
| tungsten-halogen incandescent lamp |
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Definition
| type of lamp, usually with a compact filament, that contains an inert halogen gas to increase filament life |
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Definition
| the point where the illumination falls off to 50% of field angle |
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Definition
| reveals three-dimensional form |
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| to point or aim lighting fixtures |
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| extremely bright light cause by a spark leaping between two carbon electrodes |
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Definition
| type of light source in which a wire coil, usually tungsten, offers electrical resistance on a circuit causing it to glow |
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| stage light usually from a frontal direction that illuminates the shadows or shade created by the main source of light |
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Definition
| conductive path through which electricity flows |
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Definition
| the point where illumination falls off to 10% |
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Definition
| vertical lighting position that sits on a base or flange on the floor, often placed to the sides of the stage for side light |
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Definition
| light used to highlight a specific place on the stage |
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| the brightest light in a scene |
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Definition
| device converting electrical energy into another form of energy as a lamp converts electrical energy into light & heat |
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Definition
| origin of electrical potential such as a battery or 120v wall outlet |
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Definition
| male portion of a connecting device |
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Definition
| unit of measurement of electrical current |
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Definition
| unit of measurement of electrical potential |
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| the unit of measurement of power required to do work |
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| light that is omni-directional, with light being emitted from all directions |
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| term used for "light bulbs" used in stage lighting instruments |
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Definition
| difference in electrical charge between two bodies, measured in volts |
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Definition
| the lighting designer's drafted plan, including the location of all the light & special FX equipment for a production |
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Definition
| light-producing element of a lamp; usally made of tungsten wire |
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Definition
| distance from the lens at which the light rays converge into a point |
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Definition
| lens with one flat and one outward-curving face |
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Definition
| how far light from an instrument travels from its hanging position to the center of its focus area |
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Term
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Definition
| plano-convex lens with the glass on the PLANO side cut away in STEPS parallel with the plano face |
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Definition
| plano-convex lens with the glass on the CONVEX side cut away from the convex face of the lens |
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Definition
| secures the lamp in the socket and provides electrical contact points between socket & filament |
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Definition
| glass envelope encasing the filament and acting as container for gas-filled atmosphere of lamp |
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| refers to placement of lenses within some ERS instruments (convex sides face each other) |
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Term
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Definition
| reflector in a fresnel and the old plano-convex spotlight |
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Definition
| reflector in an ETC Source 4 19-degree fixture |
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Definition
| reflector in a beam projector and in PARS |
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Definition
| glass filters used with striplights |
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Definition
| thin metal template inserted into an ERS to project a shadow pattern of light |
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Definition
| instrument with a parabolic aluminized reflector or sealed beam lamp, like the head light of an automobile |
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| accessory to a fresnel whose moveable flippers control the beam somewhat |
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| device within an ERS to shape the beam of light |
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| ERS with movable lenses allowing the focal length to be changed |
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| any surface that reflects light |
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| lightweight metal holder for color media |
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| instrument used to produce a smooth wash of light (ellipsoidal reflector spotlight) |
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| instrument used to produce a soft, diffused luminescent light (ellipsoidal reflector floodlight) |
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Definition
| instrument producing light with a relatively narrow beam width & capable of traveling long distances; quality of light is generally hard-edge with little diffusion |
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