[產品資訊] 空間光調製器 Spatial Light Modulators
Spatial Light Modulators
HOLOEYE´s Spatial Light Modulator (SLM) systems are based on translucent or reflective liquid crystal microdisplays.
These devices can modulate light spatially in amplitude or phase, so they act as a dynamic optical element. The optical function or information to be displayed can be taken directly from the optic design software or an image source and can be transferred by a computer interface.
Implementation is accomplished using the HDMI port of a standard PC graphics card. The SLM can be used just like an external plug & play monitor.
The PLUTO-2 phase modulator models are based on reflective LCOS microdis-plays with 1920 x 1080 pixel resolution and 8.0 μm pixel pitch.
The LETO phase modulator is based on reflective LCOS microdisplays with 1920 x 1080 pixel resolution. With a pixel pitch of only 6.4 μm and small interpixel gaps of 0.2 μm the LETO SLM provides a high fill factor of 93% and thereby high light efficiency
The LC 2012 is a basic Spatial Light Modulator system based on a translucent liquid crystal microdisplay with a resolution of 1024 x 768 pixel (XGA). The device can be used for phase or amplitude modulation in the visible range (however, phase shift may be limited, e.g. ~2π at 450 nm, ~ 1.8 π at 532 nm). The LC 2012 is addressed by a standard HDMI interface.
Aditionally an SLM Pattern Generator Software is delivered with the SLM. Key features 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