A driving method for improving luminous efficacy of a light emitting diode (LED), the method comprising: periodically switching a DC current supplied to the LED between a high current level lH and a low current level lL, the low current level lLbeing fixed at zero or raised above zero to produce a D.....
[Detail]
A force sensor includes a polymeric substrate including a cavity with a tilt plane, at least two metal piezoresistors on the tilt plane, and a contact pad connected to the metal piezoresistors. The tilt plane may include a measured interface of from 15° to 75°.
[Detail]
The invention concerns a lock for preventing monkeys from opening a litter stockade
[Detail]
A system for bonding electrical devices using an electrically conductive adhesive to adhere the electrical devices together, the system comprising: an ultrasonic transducer to generate an ultrasonic vibration; and an ultrasonic to thermal energy apparatus operatively attached to and covering an oper.....
[Detail]
A method for identifying a person using their finger-joint print including the outer skin around the proximal interphalangeal joint of a finger, the method comprising: capturing (10) an image of the finger-joint print of the person; extracting (12) a region of interest (ROI) based on a local convexi.....
[Detail]
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