Dublin, Ireland--Dyoptyka, which produces optical modules containing "dynamic optics" for reduction of laser speckle, has released the Clear Mini -- a speckle-reduction module miniaturized to the point that it can be used in picoprojectors.
A picoprojector is small enough to fit in a mobile device such as a cell phone and projects video or still images onto a nearby wall. While picoprojectors can use LEDs or OLEDs as the projection light source, a combination of red, green, and blue diode lasers produces a far brighter and sharper image. However, laser speckle can degrade the projected image.
Deformable mirror
Dyoptyka's Clear Mini contains a deformable mirror that has an active surface 4.8 x 4.8 mm in size and a control-electronics circuit board 10 x 10 mm in size, both integrated into an enclosure (for evaluation purposes) of dimensions 18 x 16 x 12mm, says Dyoptyka. ("For evaluation purposes" presumably means that Dyoptyka can further miniaturize the device for custom applications.) Power consumption of the Clear Mini is typically 75 mW.
"While microdisplay picoprojectors are a perfect application, we encourage manufacturers of other products which require optimal speckle reduction to evaluate this breakthrough application of Dyoptyka's four years of technology development," says Jim Brennan, CEO of Dyoptyka.
For more information, see: http://www.dyoptyka.com/downloads/DyoptykaClearMini-Brochure.pdf
John Wallace | Senior Technical Editor (1998-2022)
John Wallace was with Laser Focus World for nearly 25 years, retiring in late June 2022. He obtained a bachelor's degree in mechanical engineering and physics at Rutgers University and a master's in optical engineering at the University of Rochester. Before becoming an editor, John worked as an engineer at RCA, Exxon, Eastman Kodak, and GCA Corporation.