LC-R 720 Spatial Light Modulator – Microdisplay Features
Display Type: Reflective LCOS (Twisted Nematic)
Resolution: 1280 x 768
Pixel Pitch: 20 µm
Fill Factor: 92 %
Active Area 25.6 x 15.4 mm (1.18″ Diagonal)
Addressing 8 Bit
Signal Formats DVI – WXGA Resolution
Input Frame Rate 60Hz / 180 Hz

The LC-R 720 Spatial Light Modulator is based on a reflective LCOS microdisplay with a resolution of 1280×768 pixel (WXGA). With a pixel pitch of 20µm and a fill factor of 92% the LC-R 720 shows a reflectivity of around 70% in the visible. The very fast response time of < 3ms and the high image frame rate of 180 Hz (CFS operation) make the LC-R 720 Spatial Light Modulator a good choice for high speed applications such as one panel color sequential projection. Besides projection applications the LC-R 720 can also be used for phase modulation (with limited phase shift). The device provides a phase shift around 1 Pi in the visible (e.g. ~1.2Pi @ 532 nm).

LC-R 720 Spatial Light Modulator Kit – Contents:

LC-R 720 Spatial Light Modulator Deliverables
LC-R 720 Spatial Light Modulator – Scope of Supply
LC-R 720 SLM Driver Box
LCOS Imager (1280 x 768 Pixel)
DVI (Digital Video Interface) Cable
Serial Port Cable (RS232)
Power Supply (24V DC, 36VA)
Operating Instruction / Manual
USB Flash Drive with Manual and SLM software

LC-R 720 Spatial Light Modulator – Software Features:

LC-R720 Spatial Light Modulator Callibration SoftwareThe LC-R 720 spatial light modulator can simply be addressed like an external monitor using the standard DVI interface of the graphics card. No additional software or dedicated hardware is needed to operate the SLM.

The LC-R 720 SLM is delivered with a GUI (Graphical User Interface) based Configuration Manager software. The Configuration Manager can be used to change geometrical settings, brightness, contrast and the electrooptical response by applying a new gamma curve. For these advanced callibrations the RS232 interface has to be connected via a servial COM port of the computer (there are also USB to COM port adapters available).

In addition a HOLOEYE SLM Application Software is provided with the device. Key features of which are:

  • Computation of computer generated holograms (CGH) from user defined images
  • generation of SLM signals representing basic optical functions such as lenses, gratings, axicon and vortex functions
  • superposition of CGH’s with basic optical functions to combine functionalities
LC-R 720 Software Features
SLM Configuration Manager Icon SLM Configuration Manager Brightness / Contrast / Geometry / Gamma Control
SLM Pattern Generator Icon SLM Pattern Generator Basic DOE computations; Generation of optical functions (Circular Aperture, Fresnel Zone Lens, Axicon, Single and Double Slit …); Gratings (incl. Blazed and Sinusoidal), superposition of functions (e.g. prisms, Zernike polynomials…)
SLM Slideshow Player Icon SLM Slideshow Player Plays slideshow of user defined precalculated functions or images

LC-R 720 Driver Dimensions (Unit: mm):

LC-R 720 Spatial Light Modulator Dimensions

Display Dimensions (Unit: mm):

LC-R 720 Spatial Light Modulator Microdisplay Dimensions