LETO-720 Fast LCOS Spatial Light Modulator
The LETO-720 combines the high data bandwidth and low latency of the 4K resolution GAEA-2.1 (4k – 60fps – RGB888) driver and a fast display version of the LETO-3 SLM with a resolution of 1920 × 1080 pixels (~1 ms response-time at 520 nm).
LETO-720 LCOS SLM – Microdisplay Features
Display Type
Reflective LCOS (Phase Only)
Resolution
1920 x 1080 Pixel
Pixel Pitch
6.4 µm
Fill Factor
93 %
Active Area
12.29 x 6.91 mm (0.55″ Diagonal)
Addressing
8 Bit
Signal Formats
HDMI – HDTV Resolution
Input Frame Rate
240 Hz
Display Update Rate
240 Hz
720 Hz (RGB coded)
The LETO-720 SLM offers 2 modes:
240 Hz mode: This mode utilizes the high video data bandwidth of the driver to address real 240 Hz data on the SLM. The refresh rates for both, input frames via the HDMI graphics interface and the output, are boosted to 240 Hz.
720 Hz modulation (RGB coded): This mode makes use of the RGB color channels in addition to the 240 Hz mode. Three consecutive monochrome images are stacked in one full-color image.
An example Python script comes with the SLM which automates the generation of the required 3 color channel images.
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More InformationVersions
We currently offer one version optimized for the VIS range between 420 to 650 nm.
Product
Reflectivity
Max. Phase Shift
Wavelength Range
Inquiry
LETO-720 Spatial Light Modulator Kit – Contents:
LETO-720 SLM – Scope of Supply
- Phase only display incl. flex cable
- Driver unit
- Device mount
- Power supply + cable
- HDMI cable
- 2 x USB cable
- TMS-001 Thermal Management System
- Safety instructions & quick-start guide (test polarizer inside)
- USB flash drive with software package and documentation
Software Features
The LETO-720 phase only modulator devices can simply be addressed like an external monitor using the standard HDMI interface of the graphics card. No additional software or dedicated hardware is needed to operate the SLM.
The device is delivered with a GUI (Graphical User Interface) based Configuration Manager software. The Configuration Manager can be used to change geometrical settings and the electrooptical response by applying a new gamma curve or another digital drive scheme. An USB interface is used for these advanced callibrations.
In addition a HOLOEYE SLM Pattern Generator software is provided with the SLM:
- 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
Besides that a special SLM Slideshow Player software comes with the device. Also an SLM Display SDK is available for download which provides APIs (Application Programming Interface) for different programming languages to show images and data/ phase arrays directly on a HOLOEYE Spatial Light Modulator:
- National Instruments LabVIEW™ LabVIEW 2017 and later
- MathWorks MATLAB® R2009b and later
- Octave 7.2, 8.4
- Python™ 2.7 and 3.x
- C or C++ compiler (e. g. Microsoft Visual C++ Compiler)
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More InformationPapers & References
HOLOEYE’s Spatial Light Modulators are used in research in various fields of applications. In our publication library you find an extensive selection of links to publications and research papers.