Deformable mirror creates

inexpensive adaptive optics

Low-cost MEMS-based device can support frame rates as high as 500 Hz

Consisting of a reflective membrane supported by an underlying actuator array, the Mini-DM deformable mirrorï¿½with a starting price of just $7,500ï¿½is presented as significantly less expensive than previous such devices.Used to improve the resolution of microscopes, telescopes, and other optical instruments, the MEMS-based wavefront control device extends the number of applications for which adaptive optics are economical.

With a resolution of less than 1% of full scale, each of the 36 electrostatic actuators can be individually deflected, and unlike piezoelectric devices, perform mirror deformation without hysteresis. Packaged with a USB controller, software, and a gimbal mount, the mirror is available in continuous- or segmented-deformable versions with gold or aluminum coating, an actuator stroke of 1.5, 2.5, or 3.5 µm, and a frame rate from 1 to 500 Hz. (From $7,500ï¿½available now.)

Boston Micromachines

Watertown, MA

Information 617-926-4178

http://www.bostonmicromachines.com