Oh my gosh! What is an ellipsoidal projector??
What is a "Leko" and what will it do for me.
One of the most important additions to your arsenal of lighting is "Leko" or ellipsoidal projector. It is the first light that is somewhat controllable - meaning we can change it's output to suit our needs.Lekos are focusable.
The most obvious use of Lekos is to produce an image through the use of a gobo. A gobo is a "filter" that makes a predertermined pattern with the light. Gobos can be steel templates, gray toned glass to provide texture, or full blown glass with dichroic colors.
Lekos come in "sizes" which refers to the beam angle. The most used angles are 36 degrees and 50 degrees. But they also come in 10,19,and 26 degrees.
This becomes important when you want to put a certain pattern on a certain surface such as a monogram on a dancefloor.
The distance the light travels, called the throw, and the beam angle, which is the lens, determines the size of your pattern.
A formula that will help with this calculation is:
Beam angle in degrees = Beam width (width of desired pattern)
_______________________________
Distance X .018
For example if you want a 12 foot pattern on a wall and it is 25' from your fixture you need a 26 degree lens.
beam angle = 12 feet/25x.018= 26.6
I do have a chart that will help you with predetermined distances, sizes, and angles.
Just email me at john@aritexsales.com and I will email you a copy.
One of the most important additions to your arsenal of lighting is "Leko" or ellipsoidal projector. It is the first light that is somewhat controllable - meaning we can change it's output to suit our needs.Lekos are focusable.
The most obvious use of Lekos is to produce an image through the use of a gobo. A gobo is a "filter" that makes a predertermined pattern with the light. Gobos can be steel templates, gray toned glass to provide texture, or full blown glass with dichroic colors.
Lekos come in "sizes" which refers to the beam angle. The most used angles are 36 degrees and 50 degrees. But they also come in 10,19,and 26 degrees.
This becomes important when you want to put a certain pattern on a certain surface such as a monogram on a dancefloor.
The distance the light travels, called the throw, and the beam angle, which is the lens, determines the size of your pattern.
A formula that will help with this calculation is:
Beam angle in degrees = Beam width (width of desired pattern)
_______________________________
Distance X .018
For example if you want a 12 foot pattern on a wall and it is 25' from your fixture you need a 26 degree lens.
beam angle = 12 feet/25x.018= 26.6
I do have a chart that will help you with predetermined distances, sizes, and angles.
Just email me at john@aritexsales.com and I will email you a copy.
Comments