Laser keyboard by a diffractive optical element

We tested our designed and fabricated laser keyboard DOE on 31 July 2012. The following picture shows the image of the actual laser keyboard, which was taken with a point-and shoot camera in natural light. Click the picture to see a larger image.

Top-hat beam shaping elements Image generation (general beam shaping) elements Beam splitting elements Beam homogenizer (diffuser) Microlens array Phase gratings for optical linear encoders DOEs for motion sensing and gesture recognition systems Laser keyboard by a diffractive optical element

DOEs and other surface microstructures replication Fused silica, quartz and sapphire wafers TIFF / BMP to GDSII conversion Company and products brochure (PDF）（Updated on May 12 2014） Company and products brochure (PDF）（Updated on 4 July 2013） Company and products brochure (PDF）（Updated on 4 July 2012）