LC4500 RGB Projector


The LC4500 RGB projector offers a 1.8:1 or 1.2:1 throw options up to 350 lumens for 3D measurement and display applications.

Weight2 lbs
Dimensions12 × 10 × 6 in
Focus Distance

Short Focus – 150 mm, Standard Focus- 500 mm


No PEM, Include PEM

Throw Ratio

1.8 throw ratio, 1.2 throw ratio

The LC4500 RGB projector utilizes the P5 optical engine offering a 1.8:1 mid-throw ratio lens (or 1.2:1 with short throw option) to users needing to create an image within a typical working distance away from the projector.

This projector exhibits full color, high resolution (912×1140), high brightness (200 lumens standard with >350 lumens possible in “full-white” mode) and provides excellent uniformity and optional short focus capability. It is well suited for industrial applications such as structured lighting, 3D machine vision, medical and life science, mass spectrometry and display applications.

Keynote includes a graphical user interface for complete control of all operating modes and parameters.

For full networking support using Ethernet, order the Pattern Expansion Module (PEM) option.   This option adds a BeagleBone based SBC (single board computer) supporting Keynote’s LC4500-PEM application and provides programmable pattern sequence sets with a graphical user interface for Windows, OS X and Linux. Contact our engineering team with any questions about LC4500 application modifications.

Key Features of the LC4500 RGB projector:

  • High Grade Optical Engine >80% Uniformity
  • Onboard LED Driver
  • High speed pattern display with native DLP4500 resolution (912×1140)
  • Up to 4225 Hz binary pattern rate
  • Up to 120 Hz 8-bit grayscale pattern rate
  • Simultaneous RGB LED operation for full white mode
  • 100% offset optics
  • Texas Instruments’ .45” WXGA DMD with >1 million pixels
  • Aspect ratio: 1.6:1
  • Focusing: manual slider that can be locked in place
  • Minimum focus distance 500 mm (<200 mm with short focus option)
  • Throw ratio: 1.2 or 1.8
  • Up to 200 lumens (full color), 350 lumens (white only, short duty cycle)
Optional Pattern Expansion Module
An optional Pattern Expansion Module (PEM) add-on is available, which is based on the Beagle-Bone development platform and is installed on headers added to the LC4500 controller board.  It expands the functionality of the LC4500 controller board by adding:
  • Ethernet interface for control and communication
  • Ability to operate pattern sequences at a fixed frame rate (50Hz per 24-bit frame) regardless of the number of patterns or bitplanes in the pattern sequence
  • Ability to update individual stored patterns without reprogramming the entire DLP4500 chipset firmware
  • Separate graphical user interface including PEM and general chipset controls

If desired a PEM-equipped controller board may be operated in the same way as one without a PEM using the standard GUI and USB interface with no loss of functionality or performance.

Note:  The headers for the PEM are not installed by default on the LC4500 controller board.  It is recommended that the PEM option be ordered at the same time as the rest of the electronics kits.

See more DLP4500 solutions here.