1.
1.01 Chalice
1. General
1. The fixture shall be an LED fixture with either DMX or Mains Dimmable
control. The fixture shall be the Chalice down light by Altman Stage Lighting, Inc
or approved equal.
2. The fixture shall incorporate a state of the art microprocessor-controlled solid
state LED light engine, and on-board power supply.
3. The fixture shall incorporate silent, convection cooling without employing the use
of fans or filters.
4. The fixture shall utilize a high efficiency lenses to determine beam angle and
shape.
5. IES Photometric files shall be available upon request from the manufacturer to
model light output using the industry standard design software.
6. The fixture shall comply with USITT DMX-512 A and ANSI E1.20-2006 Remote
Device Management over USITT DMX 512A Standard (RDM) for DMX controlled
models.
2. Physical
1. The fixture shall be constructed of a spun aluminum housing with steel fittings
and attachment components, all free of pits and burs.
2. Standard finish shall be Epoxy Sandex White, electrostatic application. The
fixture shall be available with optional Black and Grey colors with additional
custom color finishes available upon request.
3. Power supply, cooling and electronics shall be integral to each unit.
4. The housing shall serve as a directional chimney to guide heat away from the
LED array, integral driver and integral power supply.
5. Lenses shall exhibit standard distribution patterns.
6. The LED substrate is coupled to a highly efficient heat sink and cooling system
for prolonged life of the LEDs.
3. Electrical
1. For DMX controlled models the fixture shall be equipped with 100V-240V
50/60Hz internal power supply.
2. For Mains Dimmable models the fixture shall be equipped with a 120V power
supply.
3. The fixture shall be hardwired to the power source.
4. LED Emitters
1. The fixture shall use a variety of LEDs for a wide range of color mixing or tuning
1. For color models the standard configurations shall be Red, Green, Blue
and Amber LEDs or Red, Green, Blue and White LEDs.
2. For white models the standard configurations shall be white LEDs at
3,000° Kelvin color temperatures or variable white between 3,000°
Kelvin and 6,000° Kelvin.
2. All LEDs used in the fixture shall be of high brightness and proven quality from
established and reputable LED manufacturers.
3. Manufacturers of LED systems shall utilize an advanced production LED binning
process to maintain color consistency.
4. LED emitters should be rated for nominal 50,000 hour LED life.
5. Fixture shall utilized Luxeon Rebel LED emitters.
5. Control
1. For DMX models the fixture shall be equipped with an LED system compatible
with standard 8-bit or user selectable 16-bit control for full range, high resolution
dimming.
1. In 8-bit mode, one DMX challe shall be utilized for each color:
1. 1-Red
2. 2-Green
3. 3-Blue
4. 4-Amber
2. In 16-bit mode, two (2) DMX channels shall be utilized for each color in
the fixture:
1. 1-Red Coarse
2. 2-Red Fine
3. 3-Green Coarse
4. 4-Green Fine
5. 5-Blue Coarse
6. 6-Blue Fine
7. 7-Amber Coarse
8. 8-Amber Fine
2. The fixture shall interact seamlessly with conventional sources.
3. The fixture shall incorporate blending optics to reduce the projection of multiple
shadows from the different sources in the fixture.
4. The fixture shall be digitally driven using high-speed Pulse Width Modulation
(PWM)
5. The fixture shall have an available “smoothing” mode which makes PWM control
of LED levels imperceptible to video cameras and related broadcast equipment.
6. For DMX controlled models the fixture shall have a local control keypad with an
LED display for configuration and control of:
1. DMX-512A device address
2. Fixture personality
3. Stand Alone operation
7. It shall be possible to lock out the control keypad on the fixture to prevent
accidental change in fixture configuration. Locking and unlocking the fixture shall
be via a predefined key sequence.
8. For DMX controlled models the fixture shall be compatible with the USITT DMX512A control protocol and ANSI E1.20-2006 Remote Device Management over
DMX-512A (RDM) Standard.
1. The DMX-512A address shall be user selectable
2. It shall be possible to set the DMX-512A device address for the fixture
while the fixture is installed and connected to the system via the RDM
(ANSI E1.20-2006) and an appropriate device such as a PC or
handheld programmer.
3. Fixtures which do not allow for setting of the DMX device address via
both local controls via keypad and remote controls via RDM shall not be
accepted.
9. System shall provide full range (0%-100%) dimming without exhibiting flicker or
stepping. Dimming curves shall be optimized for smooth dimming at low
intensities and over longer timed fades.
10. Fixture shall have an available “Master” function to provide control of intensity
without changing the color of the output of the fixture, when applicable. The
“Master” shall operate in either 8-bit or 16-bit resolution as defined by the
configuration of the fixture.
11. The fixture shall have user selected personalities to correctly match response to
the application and control system utilized. Personalities shall provide the
following options which may be combined as desired:
1. 8 or 16 bit operation
2. With Master or without Master
3. With smoothing or without smoothing
12. The fixture shall be capable of standalone operation, activated and configured at
the keypad.