Invention Grant
US07682147B2 Apparatus for forming an array of microlenses under artificial gravity
失效
用于在人造重力下形成微透镜阵列的装置
- Patent Title: Apparatus for forming an array of microlenses under artificial gravity
- Patent Title (中): 用于在人造重力下形成微透镜阵列的装置
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Application No.: US11539387Application Date: 2006-10-06
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Publication No.: US07682147B2Publication Date: 2010-03-23
- Inventor: Nicholas Djeu
- Applicant: Nicholas Djeu
- Applicant Address: US FL Tampa
- Assignee: University of South Florida
- Current Assignee: University of South Florida
- Current Assignee Address: US FL Tampa
- Agency: Smith & Hopen, P.A.
- Agent Ronald E. Smith
- Main IPC: B29C59/16
- IPC: B29C59/16 ; B29C35/08 ; B29D11/00

Abstract:
A microlens is affixed in the far field of an optical fiber to spatially transform a beam either entering or exiting the fiber. In a first embodiment, a droplet of photo polymer is placed on the end of an optical fiber and the fiber is spun to create an artificial gravity. The droplet is cured by UV radiation during the spinning. In a second embodiment, nanoparticles are mixed into the droplet to increase the refractive index of the photo polymer. A third embodiment employs artificial gravity to attach a microsphere to the end of the optical fiber. A fourth embodiment chemically treats the surface of the microsphere so that the requirement of artificial gravity is either reduced or eliminated. In a fifth embodiment the droplet is cured under equilibrium or nonequilibrium conditions to obtain different final shapes for the lenslet. A sixth embodiment discloses fabrication of microlens arrays.
Public/Granted literature
- US20070074655A1 Methods for Fabricating Lenses at the End of Optical Fibers in the Far Field of the Fiber Aperture Public/Granted day:2007-04-05
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