3M™ Closed Head Doublet Lens Overhead
Projector Model 1880 Plus
The Overhead Projector 1880 Plus is engineered for durability
with chemically-hardened, breakresistant stage glass. The durable stage
glass results in less maintenance, interruptions and repair expenses.
(cc)
Optical Performance
- Head: Articulating, closed doublet (dual element lens)
- Illumination: 3,000 ANSI lumens typical (2,700 lumens - typical
for low setting)
- Design: Transmissive with folded optical system
- Focal length: 14"
- Stage aperture: 10.5" x 10.5"
- Fresnel Lens: Dual Element Lens
- Color-tuning dial
Lamp Description
- Lamp ejector
- 1 lamp included
- Lamp changer
- Lamp type: ENX (82 volts, 360 watts)
- Lamp life: 75 hours ANSI rating
- Built-in Resistor to extend lamp life well beyond the 75 hour
ANSI rating
- High/low switch: to enhance brightness or extend lamp life
Physical Characteristics
Electrical Features
- Internal high/low switch
- Hush-quiet fan
- Power-cord length: 15'
- Power-cord wrap
Mechanical
- Lamp-interrupt switch shuts off power to lamp when changing to
prevent premature failure
- Carrying handle
- Fold-down post
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