A Profile is a precise optical instrument, principally used for frontal stage lighting from auditorium lighting positions and for pattern (gobo) projection. Light is collected into a gate where it can be accurately shaped using four masking shutters.

The beam is ideal for high definition pattern (gobo) projection and razor sharp shaping of the beam.

Beam size is called beam angle. Measured in degrees, the larger the beam angle, the wider the spread of light for a given throw distance.

Some manufacturers createtwo different types of profile / ellipsoidal luminaires with a range of lens systems including zoom variable beam angles and fixed angles from the very narrow (5°) to the super wide (90°). Precision optics and careful reflector design allow for pattern projection from all of them.

	BASE DOWN AXIAL ELLIPSOIDAL - as used in the Pacific range. Positioning the lamp axially in an ellipsoidal reflector is the most efficient means to collect the light, while a base down configuration ensures the critical components, the lamp and lamp base are positioned out of the heat flow.
	AXIAL ELLIPSOIDAL - as used in the Acclaim Axial Zoomspot. Mounting the lamp axially collects more of the available light. Using the latest in compact filament 600W tungsten halogen lamps maximises light output while carefully engineered air flow and heat sink design combine to protect critical components from the heat exhaust.