Some lighting sources are not able to be dimmed electrically. Fortunately we offer two different styles of mechanical dimmers to allow integration of these light sources into a theatrical presentation. All of the dowsers work with a remote power supply and can be daisy-chained for ease of installation. The control signal is also included in the 4 pin cable.
Eclipse IT Iris
The Eclipse IT Iris Dowsers are most commonly used on HMI Fresnels used in Auto shows. The are used to do theatrical reveals of the new car models. Because of the high heat of the fixtures, and the long close times of press conferences, we now offer a new Titanium model which can take lots of heat. The front of the iris has mounting provisions for barndoors and the other accessories commonly used with fresnels. All of the iris styles have the advantage to be able to open fully so there is no light loss.
The iris is a licensed use of a design by George Izenour done in the early 50's for NBC television studios. It was originally designed to avoid the color shift when dimming incandescent lights. Sort of ironic, since George invented the SCR dimmer which is the standard for dimming incandescents.
Eclipse IT Shutter
Eclipse IT Shutters are very much like motorized venetian blinds. Open and closed and every where in between are controlled from your lighting console. The shutter style features very rapid cycling for strobe type effects. We have a great video of their use in the Target Center in Minneapolis.