ViewSonic LS711HD 1080p Short Throw Laser Projector – 4200 ANSI Lumens, 0.49 Throw Ratio, 30,000-Hour Laser

The ViewSonic LS711HD is a 4,200-lumen Full HD short throw laser projector for classrooms, small meeting rooms, and home golf simulators. It projects 100 inches from about 3.6 feet, runs up to 30,000 hours in Eco mode, and weighs under 7 lbs for easy mounting.

Deep-Dive Story & Problem/Solution

Short Rooms Need Short Throw, and Daily Use Needs Laser

Small classrooms and simulator bays offer only a few feet between projector and screen. A standard lens cannot fill the wall, and anyone standing near the screen blocks the beam. Lamp-based short throw units add a second headache: lamp replacement on a ladder above the board.

The LS711HD combines a 0.49 throw ratio with a laser phosphor source. From 3.6 feet it creates a 100-inch 1080p image, and the laser is rated for 20,000 hours in normal mode and 30,000 in Eco. It draws about 210W.

A 3,000,000:1 dynamic contrast ratio and 4,200 ANSI lumens keep the picture defined under classroom lighting.

100 Inches From 3.6 Feet

The short throw lens removes presenter shadows and suits ceiling mounts close to the screen. Image sizes from about 35 to 300 inches are supported.

Light, Efficient, and Lamp-Free

At 6.95 lbs the projector fits standard mounts. Two HDMI inputs, USB power, an audio output, RS-232, and a 15W speaker complete a simple installation.

Setup Instructions

How to Install the ViewSonic LS711HD

1. Mount the projector about 3.6 feet from a 100-inch screen, or 4.3 feet for 120 inches.
2. Connect an HDMI source and RS-232 control if used.
3. Focus manually and adjust horizontal and vertical keystone.
4. Select Eco mode where full brightness is not required.