LC-PROJ
The LC-PROJ is a programmable liquid-crystal light projector: an LED beam shaped pixel by pixel by an integrated, factory-calibrated liquid-crystal spatial light modulator (1920 × 1080 pixels). The output intensity is proportional to the gray level of the image.
It writes the light patterns of optically addressed light valves (OASLM) and exposes photopolymers, resists and hydrogels for maskless grayscale lithography. Wavelength (420 – 890 nm or white light), optical power and magnification are adapted to the application.
Dedicated control software (Linux, Windows, macOS) displays images, videos or live frames computed in Python on the LC-PROJ.
Programmable Light Projector
APPLICATIONS
- optical addressing of OASLM light valves
- maskless exposure – photopolymerization and lithography
- photo-alignment of alignment layers
- structured illumination – microscopy
- metrology – fringe projection, machine vision
- optical computing – optical neural networks
- education
Technical Details
The LC-PROJ is provided with instructions and with a dedicated control software.
- LED, single wavelength from 420 to 890 nm, or white light, on request
- Optical power adapted to the application
- Linearly polarized output (vertical)
- Integrated liquid-crystal spatial light modulator, 256 gray levels
- Factory calibrated: output intensity linear in gray level (deviation below 1 % of full scale)
- Contrast ratio 500:1
- Magnification 3.8× standard: 35 mm spot
- 0.6× to 7.5× on request
- Working distance from a few centimetres
- Response time 15 ms
- Frame rate 60 Hz
- SLM panel 1920 × 1080 pixels, pitch 8.5 µm
- Pixel size in the output plane: 8.5 µm × magnification (32 µm at 3.8×)
- One-pixel lines resolved: 5.8 µm at 0.68× magnification
- 156 mm × 100 mm × 95 mm (without output optics)
- Weight 1.57 kg
- HDMI
- Power Supply 19-24 VDC
Control software for Linux, Windows and macOS is provided with the LC-PROJ, with a Python interface