yazhuge |
2005-10-20 17:15 |
[原创]Small and fast zoom system
Small and fast zoom system V6tUijz )Zit6I Abstract g?e-D.pSF 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. y*5$B.u`. -------------------------------------------------------------------------------- c7/fQc)h4d Inventors: Cho, Gyoung Il; (Seoul, KR) ; Gim, Dong Woo; (Gyoungnam, KR) ; Seo, Cheong Soo; (Seoul, KR) ; Boyd, James Greenup; (Brenham, TX) ; Baek, Sang Hyune; (Suwon, KR) k4BiH5\hA Correspondence Name and Address: PARK & SUTTON LLP \++#adN:K 3255 WILSHIRE BLVD ul ag$ge SUITE 1110 42 &m) LOS ANGELES }OLBEhGs CA
%( o[Hsl 90010 a+p_47 xa US ?KXgG'!! 4e9'yi m;m4/z3U Serial No.: 806299 Y)9]I6n7 Series Code: 10 `yWWX.` Filed: March 22, 2004 5:
O,-b& 7Hp~:i30 U.S. Current Class: 359/676 ${w\^6& U.S. Class at Publication: 359/676 =U<6TP]{ Intern'l Class: G02B 015/14; G02B 015/15 O{44GB3 -------------------------------------------------------------------------------- UY*[='l!) x#&%lJT Claims b}5hqIy H2D j`0 -------------------------------------------------------------------------------- 4
n\dh<uY 1. A zoom system for forming an image with varying magnification comprising one or more variable focal length lenses, wherein the variable focal length lens is made of a micromirror array lens, wherein the micromirror array lens comprises a plurality of micromirrors, wherein each micromirror is controlled to change the focal length of the micromirror array lens, wherein the micromirror array lens further comprises a plurality of mechanical structures upholding the micromirrors and actuating components actuating the micromirrors. 4XsKOv 2-3. (canceled) eXsFPM 4. The zoom system of claim 1, wherein the translation of each micromirror of the micromirror array lens is controlled. *<T,Fyc| o9D]\PdL> 5. The zoom system of claim 1, wherein the rotation of each micromirror of the micromirror array lens is controlled. qaN%&K9F8 Q]2v]PJ6" 6. The zoom system of claim 1, wherein the translation and rotation of each micromirror of the micromirror array lens are controlled. WMXk-?v4 VS_xC$X!S 7. The zoom system of claim 1, wherein the micromirrors of the micromirror array lens are arranged to form one or more concentric circles. tx01*2]pX ]aVFWzey 8. The zoom system of claim 1, wherein each micromirror of the micromirror array lens has a fan shape. )a'c_ 2[ VLfE3i4Vwl 9. The zoom system of claim 1, wherein the reflective surface of each micromirror of the micromirror array lens is substantially flat. b|z_1j6U p?+*R@O 10. The zoom system of claim 1, wherein the reflective surface of each micromirror of the micromirror array lens has a curvature. iv]*HE YJEL'k<l 11. The zoom system of claim 10, wherein the curvature is controlled. ^GN |}W YQk<1./}I 12. The zoom system of claim 1, wherein each micromirror of the micromirror array lens is actuated by electrostatic force. 7L\kna< KZ}F1Mr 13. The zoom system of claim 1, wherein each micromirror of the micromirror array lens is actuated by electromagnetic force W2\Q-4D ><Z`)}f 14. The zoom system of claim 1, wherein each micromirror of the micromirror array lens is actuated by electrostatic force and electromagnetic force. G~;hD-D~. WSPlM"h 15. The zoom system of claim 1, wherein the mechanical structure and the actuating components are located under the micromirrors. p .^#mN -U/m 16. The zoom system of claim 1, wherein the micromirror array lens is a reflective Fresnel lens. 'aoHNZfxw (e$/@3* 17. The zoom system of claim 1, wherein the micromirrors are arranged in a flat plane. eTp}*'$p gAWrn^2L5 18. The zoom system of claim 1, and wherein each micromirror is controlled to change the focal length of the micromirror array lens. U~e^ ,awp)@VG7 19. The zoom system of claim 1, wherein the micromirror array lens is an adaptive optical component, wherein the micromirror array lens compensates for phase errors of light introduced by the medium between an object and its image. ;\5^yDv[e 0aS&!"o! 20. The zoom system of claim 1, wherein the micromirror array lens is an adaptive optical component, wherein the micromirror array lens corrects aberrations. (}C%g{8 %7*Y@k-)o 21. The zoom system of claim 1, wherein the micromirror array lens is an adaptive optical component, wherein the micromiror array lens corrects the defects of the zoom system that cause the image to deviate from the rules of paraxial imagery. jS,zdJs= .g6DKjy> 22. The zoom system of claim 1, wherein the micromirror array lens is an adaptive optical component, wherein an object which does not lie on the optical axis can be imaged by the micromirror array lens without macroscopic mechanical movement of zoom system. d=B
DR^/wA 0G.y_<= 23. The zoom system of claim 1, wherein the micromirror array lens is controlled to satisfy the same phase condition for each wavelength of Red, Green, and Blue (RGB), respectively, to get a color image. P_f>a?OL: )~X*&(7RR} 24. The zoom system of claim 23, further comprising a plurality of bandpass filters. ]JXpe]B nxc35 25. The zoom system of claim 23, further comprising a photoelectric sensor, wherein the photoelectric sensor comprises Red, Green, and Blue (RGB) sensors, wherein a color image is obtained by treatment of electrical signals from the Red, Green, and Blue (RGB) sensors. 9-9:]2~g! K(M@#t1_& 26. The zoom system of claim 25, wherein the treatment of electrical signals from the Red, Green and Blue (RGB) sensors is synchronized and/or matched with the control of the micromirror array lens to satisfy the same phase condition for each wavelength of Red, Green and Blue (RGB), respectively. %)K)h&m | |