LUXBEAM® RAPID SYSTEM – LRS-4KA SERIES
MORE THAN 8 MILLION ADDRESSABLE PIXEL POSITIONSSuperior resolution
light engine
The LUXBEAM® Rapid System LRS-4KA is specificallydesigned for static implementations in 3D printing
and additive manufacturing systems.

LUXBEAM® RAPID SYSTEM – LRS-4KA SERIESPOWER AND THROUGHPUT
The LRS-4KA projector subsystem makes UV optics, hardware
and software work together to deliver high power and highthroughput in an easy-to-use, reliable package. Customizing
wavelength and projection lens assembly for individual system
requirements gives you flexibility.
HIGHEST RESOLUTION
Designed explicitly for static implementations in 3D printing

Superior resolution
light engine – ideal
for static use in3D printing

and additive manufacturing systems, it is a superior resolution DLP®-based stereolithography subsystem with more than
8 million addressable pixel positions – for production of thehighest resolution parts.
PERFORMANCE
Three product performance levels are available, ranging fromthe air-cooled commodity version for cost-sensitive systems,
via an air-cooled version for high-power systems, to the extreme performance, liquid-cooled LRS-4KA LC.
ADVANCED CONTROLLER
The LC4KA-EKT controller’s Full Pixel Sequence Control (FPSC)
mode avoids re-sampling errors and gives you full control ofthe projector’s image information. The result is superior finish.
STACKING POSSIBLE
A slim footprint allows for stacked configurations, yielding 8K,
16K, and higher resolutions. Up to 7W of optical power output
makes it the most compact high-power 4K projector at hand.
COMMODITY OR PERFORMANCE VERSION?
Using the standard projection lens range, the commodity
version is already powerful, cost competitive and best-inclass for desktop engines. The full performance unfolds
with optimized full power projection lenses.

LUXBEAM® RAPID SYSTEM – LRS-4KA SERIES
Recommended implementation• High power static configuration
Resolution• 3840 x 2160 FPSC mode
• 2716 x 1528 native pixel mode
LED Wavelengths• 460 nm / 405 nm / 385 nm / 365 nm
Optical Power Output (depending on configuration)• Liquid Cooled Version:
Up to 7.5W (with 405 nm), 6.5W (with 385 nm),
3.5W (with 365 nm)• Performance Version:
Up to 7W (with 405 nm), 6W (with 385 nm), 3W (with 365 nm)• Commodity Version:
Up to 5W (with 405 nm), 4.5W (with 385 nm), 2W (with 365 nm)
Projection Lens Options• Performance:
14x, 17x, 24x• Commodity:
1.0x, 2.0x, 3.7x, 4.6x, 13x• More options under developmentElectronics• Advanced LC4KA-EKT controller

LUXBEAM® RAPID SYSTEM – LRS-4KA SERIES

LRS-4KA AC AIR COOLEDLRS-4KA LC LIQUID COOLED

from the most compact light engine cabinet, allowing implemen-

4KA for stacked configurations with multiple projectors intation into even desktop- and compact standalone machines.

mind. As a result of the light engine’s slim footprint, seamless

Combined with Visitech’s extensive range of projection lenses,

stitching of projectors allows for large vats at unprecedented

any need is covered – from static micro-SLA to large formats (upresolution. In addition, the liquid-cooling circuit supports im-to A4 size). As a result, this is a highly compact and cost-efficient

proved thermal management – and along with it, longer LED

solution for a wide range of additive manufacturing systems.

lifetime, less vibration, and superb robustness.

The air-cooled LRS-4KA variants achieve superior 4K resolution

We developed the liquid-cooled product version of the LRS-FULL PIXEL SEQUENCE CONTROL (FPSC MODE) EXPLAINEDThe advanced LC4KA-EKT controller of the LRS-4KA pro-NO RE-SAMPLING: Images feed into the DMD at native resolution

jector provides full control of the data content in theprojected subframes, with three valuable advantages:
NO RE-SAMPLING ERRORSIMAGE 1 (2716 x 1528)

The controller uses the exact native resolution of theDMD, which allows pixel-pure exposures. This differsfrom systems using the original DMD reference controller, designed for UHD video inputs, but requiring data
re-sampling. Re-sampling causes unwanted pixel errors
due to input resolution mismatch between the controller and the DMD.
COMPLETE CONTROL OF THE OPTICAL ACTUATOR
You can control both actuator positions timewise on
every layer, and apply an image offset of 1/2 pixel to generate better resolution of outer contours in each layer,
resulting in better surface finish of the printed objects.
FLEXIBLE ARCHITECTURE
Flexible architecture for simple and easy integration
with your machine design.

IMAGE 2 (2716 x 1528)

SMOOTH SURFACE: Control both actuator positions for each layer

LUXBEAM® Rapid System – LRS-4KA series
PropertiesDMD Type

DLP660TE (2716 x 1528 px)

Resolution

8,3 million addressable pixels (UHD-4k images with optical actuator)

Operation Modes• 3840 x 2160 FPSC mode
– Pixel-Pure-Images (2 x WQXGA)– Pure 8-bit grey-scale (No scaling, resampling or gamma/video processing)– Precise actuator timing control• 2716 x 1528 native pixel mode

Projector Output PowerLC version:• up to 3.5 W (with 365nm)• up to 6.5 W (with 385nm)• up to 7.5 W (with 405nm)

LED Options

460 nm / 405 nm / 385 nm / 365 nm

LED Driver

Constant flux with Optical Feedback or Fixed Current

Power Uniformity> 90% native in image plane

Contrast Ratio

ON / OFF: Up to 1200:1
ANSI: Up to 450:1

Dimensions w/o lens

190 mm (L) x 150 mm (W) x 228 mm (H)

Total weight

4 kg (w/o lens and PSU)

Power consumption

200 W (varies with exposure scheme)

AC performance version:• up to 3 W (with 365nm)• up to 6 W (with 385nm)• up to 7 W (with 405nm)

AC commodity version:• up to 2 W (with 365nm)• up to 4.5 W (with 385nm)• up to 5 W (with 405nm)

SoftwareComplete API (Windows, Linux) and GUI

FeaturesFPSC Mode, light intensity regulation (optical feedback), adaptive fan control, external frame synchronization, temperature management

Electrical connections
Power supply

12 V DC

Video Data

HDMI or DP

Communication

USB

LED Safety Switch

LED enable/disable

Electrical Sync I/OExternal frame synchronization

Lens Options

Working Distance [mm]Pixel Pitch in image [μm]Feature Size in FPSC /XPRTM mode [μm]LRS-4KA 14x

500.0

75.0

37.5

204.0x115.0LRS-4KA 17x

524.0

90.0

45.0

244.0x138.0

LRS-4KA 24x

832.0

130.0

65.0

353.0x

199.0

LRS-WQm 1.0x

71.2

5.4

2.7

14.7x

8.3

LRS-WQm 2.0x

90.0

10.8

5.4

29.3x

16.5

LRS-WQm 3.6x

125.5

20.0

10.0

54.3x

30.6

LRS-WQm 4.6x

180.0

25.0

12.5

67.9x

38.2

LRS-WQm 13.0x

350.0

70.0

35.0

190.0x

107.0

Native Image Size
W x H [mm2]Performance version

Commodity version

Other lens options available upon request.
All specifications and features subject to change.

VISITECH Engineering GmbH
Christian-Kremp-Strasse 9, 35578 Wetzlar, Germany
Phone: +49-(0)6441-446756-0 | E-mail: lrs-sales@visitech.no | visitech.no