Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Zoom flash with liquid crystal lens










Image Number 9 for United States Patent #7616881.

A camera apparatus (10) has a zoom lens (12) having a zoom focus setting that is adjustable over a range of focus values and control circuitry for generating a variable voltage potential according to the zoom focus setting. A flash illumination apparatus (20) has a light source (32) and a variable focus liquid crystal lens (24), the variable focus liquid crystal lens (24) having a first and a second solid optical element (40, 50), chamber (44), the two electrodes (42, 48) and liquid crystal material (46). A variable voltage is applied to the liquid crystal material (46) for the lens power according to the zoom focus setting.








 
 
  Recently Added Patents
Exposure apparatus, exposure method, and device manufacturing method
Method and system for modifying satellite radio program subscriptions in a mobile vehicle
Toilet
Autonomous downlink code selection for femto cells
Liquid formulations of carboxamide arthropodicides
RFID reader revocation checking using low power attached displays
Scale information for drawing annotations
  Randomly Featured Patents
Intelligent pico-cell for transport of wireless device communications over wireline networks
Device for controlling a printing machine
Rotary tool
Method to manufacture a universal footprint for a package with exposed chip
Using virtual networking devices to manage routing communications between connected computer networks
Chair
Packaged array of flexible articles
Floor nozzle of a vacuum cleaner
Apparatus and method concerning analysis and generation of part program for measuring coordinates and surface properties
Grounding device for an image forming machine