Miniature non-MEMS scanner deflects beam with continuous sinusoidal motion
Electro-Optical Products' SC-3 is the smallest available non-MEMS resonant scanner on the market. It is a subminiature electromagnetically driven moving mirror device that deflects a light beam with a continuous sinusoidal motion. Its mirror size is 6 mm diameter, 7 x 7 mm or 12 x 7 mm.
Electro-Optical Products' SC-3 is the smallest available non-MEMS resonant scanner on the market. It is a subminiature electromagnetically driven moving mirror device, which deflects a light beam with a continuous sinusoidal motion. Mirror size is 6 mm diameter, 7 x 7 mm, or 12 x 7 mm with an optical scanning angle up to 50°, and a fixed-frequency scanning range from 100 to 1000 Hz, fixed at any one value within the range. Applications include barcode readers, laser scanners, image and pattern forming and recognition, printers, OCT, ophthalmology, DNA sequencing, confocal microscopy, biomedical imaging, quality inspection, and outer space and environmental research.
Fresh Meadows, NY
Posted by C. Settino, www.laserfocusworld.com
Miniature Non-MEMS Scanner for Small Size Imaging Systems
The SMALLEST available non-MEMS Resonant Scanner currently on the market was developed by Electro-Optical Products Corp. It is a miniature electromagnetically driven moving mirror device (0.9 ´ 0.5 x 0.4 inches), which deflects a light beam with a continuous sinusoidal motion.
The SC-3's mirror size is what truly differentiates the product from MEMS-based scanners. A mirror in a MEMS-based scanner is typically 1 x 1 mm, whereas EOPC's technology offers 6 mm diameter, 7 x 7 mm and 12 x 7 mm size mirrors, with an optical scanning angle up to 50°, and a fixed-frequency scanning range from 100 to 1000 Hz, fixed at any one value within the range.
AGC type driver provides:
- both sine wave and TTL level square wave reference signals
- trimpot control to adjust the phase of the reference signals with respect to the position of the mirror or vane. The adjustable range is 180 degrees.
-amplitude adjustment in the range of 20% to 100% of the full amplitude
A combination of features establishes the optical scanner as a suitable component for applications requiring good imaging with minimal distortion. The resonant scanner does not have bearings or moving parts and can run for infinite times without failing. The scanner requires very little electrical drive power. It operates in a wide temperature range and has good frequency stability and scan repeatability coupled with high flexural stiffness that provides good shock and vibration resistance.
The low cost scanner is an excellent tool to be used systems in industrial, scientific, medical, aerospace and military imaging and inspection applications. It fits emerging trends of building smaller, less expensive, portable and handheld systems.
Resonant scanners are already used and can be potentially used in the following applications:
Improving Cancer Diagnosis, Ophthalmic Imaging, Adaptive Optics, Optical Coherence Tomography, X-ray Technology, DNA sequencing, Brain Imaging, Detecting Cognitive Recognition, Dentistry, Dermatology, Developmental Biology, NDE/NDT, Oncology and High Resolution Imaging of Optical Coherence Microscopy (OCM), barcode readers, laser scanners, image and pattern forming and recognition, printers, biomedical imaging, quality inspection and outer space and environmental research to name a few.
EOPC manufactures a comprehensive line of standard and custom resonant scanners that can also be used in raster scanning X,Y systems, systems locked to an external clock or systems locked in a master / slave mode (all supplied by EOPC).