Small and fast zoom system giyKEnP  
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Abstract 6;l{9cRgc  
There is a need for a small and fast optical zoom device that can change magnification. Conventional zoom devices require coupled mechanical motions to adjust the axial separations between individual or groups of elements in order to change the optical magnification. The mechanical motions decrease the speed of zooming, increase space and weight for zoom system, may induce unwanted jitter, and require large power consumption. In addition, the mechanical zoom system is restricted to magnifying the area on-axis. To solve problems of conventional zoom system, the zoom system utilizing one or more variable focal length micromirror array lenses without macroscopic mechanical motion of lenses is invented. SM@l4GH  
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Inventors: Cho, Gyoung Il; (Seoul, KR) ; Gim, Dong Woo; (Gyoungnam, KR) ; Seo, Cheong Soo; (Seoul, KR) ; Boyd, James Greenup; (Brenham, TX) ; Baek, Sang Hyune; (Suwon, KR) 8 %Lq~lk  
Correspondence Name and Address:     PARK & SUTTON LLP :tedtV~  
  3255 WILSHIRE BLVD p=coOWOQ  
  SUITE 1110 AJiEyAC!)5  
  LOS ANGELES `]FA} wC  
  CA a"b9h{h@  
  90010 S3MMyS8  
  US M9_ y>N[0  
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Serial No.: 806299 bDeHU$  
Series Code: 10 zKx?cEpE  
Filed: March 22, 2004 U!XC-RA3 _  
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U.S. Current Class: 359/676 KX"?3#U#Fm  
U.S. Class at Publication: 359/676 @rRBo:0%  
Intern'l Class: G02B 015/14; G02B 015/15 >O&(G0!N+}  
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Claims `a["`N^  
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1. A zoom system for forming an image with varying magnification comprising one or more variable focal length lenses, wherein the variable focal length lens is made of a micromirror array lens, wherein the micromirror array lens comprises a plurality of micromirrors, wherein each micromirror is controlled to change the focal length of the micromirror array lens, wherein the micromirror array lens further comprises a plurality of mechanical structures upholding the micromirrors and actuating components actuating the micromirrors. )p~\lM}?d  
2-3. (canceled) x4CrWm  
4. The zoom system of claim 1, wherein the translation of each micromirror of the micromirror array lens is controlled. X{| 1E85fl  
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