Optical Lid Sensor Eliminates Magnetic Types

Sept. 6, 2011
Riding in as the industry’s first optical lid sensor chip for tablet computers, notebooks, and smartphones, the CM36262 integrates lid, ambient-light, and proximity sensors into a single chip that the company believes will eliminate magnetic lid sensors.

Riding in as the industry’s first optical lid sensor chip for tablet computers, notebooks, and smartphones, the CM36262 integrates lid, ambient-light, and proximity sensors into a single chip that the company believes will eliminate magnetic lid sensors. The lid sensor eases the power down of touch-screen products while the ambient light sensor adjusts screen brightness to extend battery life, and the proximity sensor turns off dialing when a smartphone is held in the listening position next to an ear. The CM36262 chip works in conjunction with an adjacent infrared LED that shines a beam straight out of a touch-screen glass.  It relies on the company’s patented Dual Filtron technology and a wide range of circuits to accomplish sensing functions. The chip operates from 2.6V to 3.7V volts with a typical current consumption of 180 mA. Sampling now, price for the device is $0.79 each/1,000. Capella Microsystems Inc., Santa Clara, CA. (408) 727-8500.

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