Lighting Design 05, Lenses & Reflectors

What are the two main properties of light used in theatrical lighting design?

• Absorption and emission

• Reflection and refraction

• Diffraction and interference

• Polarization and dispersion

Which type of lighting instrument uses a parabolic aluminized reflector?

• Fresnel

• Ellipsoidal

• PAR can

• Scoop

What is the primary purpose of a Fresnel lens in theatrical lighting?

• To create a sharp-edged beam of light

• To produce a wide flood of light

• To create a soft-edged pool of light

• To project patterns or images

Which lighting instrument is typically used to flood the stage with light during rehearsals?

• Ellipsoidal

• PAR can

• Fresnel

• Scoop

In an ellipsoidal reflector spotlight (ERS), where is the focal point of the light typically located?

• At the lamp

• At the reflector

• Near the shutters

• At the lens

What is unique about PAR lamps compared to other theatrical lighting instruments?

• They don't use lenses

• They have a spherical reflector

• The reflector, lens, and bulb are often in one sealed package

• They can only produce white light

Which lighting instrument is often used to simulate strong sources of light coming from above and to the side, such as sunlight through a window?

• Fresnel

• Scoop

• PAR can

• Ellipsoidal

What is the primary advantage of LED lighting instruments in theater?

• They produce a sharper beam of light

• They are more energy-efficient and can produce any color

• They have better lenses than traditional instruments

• They are larger and more durable

Which part of an ellipsoidal spotlight allows for shaping the beam of light?

• The Fresnel lens

• The parabolic reflector

• The shutters

• The color frame

What is the shape of the beam produced by a Fresnel lighting instrument?

• Square

• Oval

• Circular

• Triangular