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Spatial Light Modulator (SLM)

The Need for Switchable Optical Devices
Switchable optical devices give new opportunities:
● the optical function can be modified without need to change optical components.
● the optical function can be programmed.
● high switching speeds provide for real-time applications.
● laser light can be spatially modulated either in amplitude or phase.

The LC 2012 Spatial Light Modulator is based on a transmissive Liquid Crystal (LC) microdisplay with 1024 x 768 pixel resolution. The SLM provides a phase shift of 2 π at 532 nm and around 1 π at 800 nm. The microdisplay and drive electronics are packaged into a compact box for easy integration into optical setups. The device is delivered with a mounting ring which fits for standard laboratory posts / holders. The LC 2012 is addressed using a standard HDMI interface and advanced callibration can be performed using an USB interface.
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LC 2012

Transmissive LC

  •  Display Type  Transmissive LC
     Resolution  1024 x 768
     Pixel Pitch  36 µm
     Fill Factor  58 %
     Active Area  36.9 x 27.6 mm (1.8” Diagonal)
     Addressing  8 Bit (256 Grey Levels)
     Signal Formats  HDMI – XGA Resolution
     Frame Rate  60 Hz
  • ※ 本產品為限量銷售之特價品,若銷售完畢,本公司得保有隨時恢復原價之權利。

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Special Optical Features:

● Translucent Liquid Crystal Microdisplay
● Amplitude or Phase Modulation
● 2 π Phase Shift @ 532 nm
● Intensity Ratio of 1000:1 @ 633 nm

The LC 2012 Spatial Light Modulator can be used for phase and amplitude modulation applications dependent on the configuration. High transmittance and high contrast of the LC panel guarantee an excellent image quality.

LC 2012 Spatial Light Modulator – Scope of Supply

● LCD Image Display Device LC 2012 (1024 x 768 Pixel)
● Power Supply
● HDMI Cable + DVI/HDMI Adaptor
● USB/Mini-USB Cable
● Device Mount
● Operating Instruction / Manual
● USB Flash Drive with Manual, User Software and Application Software

LC 2012 Spatial Light Modulator – Software Features:

The LC 2012 spatial light modulator devices can simply be addressed like an external monitor using the standard DVI / HDMI interface of the graphics card. No additional software or dedicated hardware is needed to operate the SLM.

The LC 2012 SLM is delivered with a GUI (Graphical User Interface) based calibration software. The calibration software can be used to change geometrical settings, brightness, contrast and the electrooptical response by applying a new gamma curve. For these advanced callibrations the USB calibration interface has to be connected via an USB port of the computer.

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

   
SLM Callibration Software : Brightness / Contrast / Geometry / Gamma Control
SLM Application Software : Basic DOE computations; Generation of optical functions (Circular Aperture, Fresnel Zone Lens, Axicon, Single and Double Slit …); Gratings (incl. Blazed and Sinusoidal)

LC 2012 Driver Dimensions (Unit: mm):