Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Zoom lens system, imaging device and camera










Image Number 10 for United States Patent #7319563.

An object is to provide a high-resolution zoom lens system which has fewer lens elements and therefore, can be retracted into a compact form when not in use; and the zoom lens system, in order from the object side, comprises a first lens unit G1 having negative power, a second lens unit G2 having positive power and a third lens unit G3 having positive power, wherein magnification is varied with change in intervals between each lens unit by independently moving each lens unit along an optical axis, in which the first lens unit G1 comprises one negative lens element L1 and one positive lens element L2, the second lens unit G2 comprises only a cemented lens element having set of three lens elements L3, L4 and L5 which are cemented with each other, and the third lens unit G3 comprises one positive lens element L6.








 
 
  Recently Added Patents
Control of an electric machine
Translation system adapted for query translation via a reranking framework
Semiconductor device and fabrication method
Methods and apparatus for determining a phase error in signals
Para-xylylene based microfilm elution devices
In-store marketing sign
Methods and arrangements for realising betting with off-line terminal
  Randomly Featured Patents
Electrical connector
Blind fastening apparatus
Heat recovery type gas turbine
Short-arc discharge lamp with a starting antenna
Slot/ATM machine
Human mannose-binding protein
Rear projection image display device
Reticle for off-axis illumination
Analog/digital converter and method for controlling the same
Non-linear transformation of images in web browsers