基于可壓縮硅光電子材料半球形電子照相機

1、基于可壓縮硅光電子材料半球形電子照相機 H.C.K & M.P.S & J.A.R designed the experiments. H.C.K & M.P.S & J.S performed the experiments and analysis. H.C.K ，M.P.S，J.S，Y.H and J.A.R wrote the paper. In this paper, we introduce a means of producing curvilinear optoelectronics and electronic eye imagers that

2、 uses well-established electronic materials and planar processing approaches to create optoelectronic systems on flat, two dimensional surfaces in unusual designs that tolerate compression and stretching to large levels of strain .this feature enables planar layouts to be geometrically transformed t

3、o nearly arbitrary curvilinear shapes.The human eye is a remarkable imaging device, with many attractive design features. Prominent among these is a hemispherical detector geometry, similar to that found in many other biological systems, that enables a wide field of view and low aberrations .Unfortu

4、nately, existing technologies have been developed only for surfaces of rigid. the mechanical strains needed to accomplish the planar to hemispherical geometrical transformation greatly exceed the fracture strains of all known electronic materials. The ability to implement(實施) electronic and optoelec

5、tronic（光電子的） systems on non-planar （非平面）surfaces could be useful not only for hemispherical cameras , but also for biological systems as monitoring devices（檢測裝置）, prosthetics（假肢） and so on.(1)將光電子電路做成超薄結構，采用不同尋常的二維可壓縮構型(2)特殊設計的彈性元件將平面圖案變?yōu)榘肭蛐?。using compressible silicon focal plane arrays and hemisphe

6、rical, elastomeric transfer elements to fabricate electronic eye cameras. A transfer element fabricated(構造) in PDMS （硅氧烷 ）by casting（鑄造） and curing（固定） against an appropriately designed template. Stretching in the radial（輻射狀的） direction forms a flat drumhead（鼓膜） membrane in which all points in the P

7、DMS are in tension. Lifting a prefabricated（預制） focal plane array and associated electronics from a source wafer onto the surface of this drumhead （thin narrow compressible line）allowing the PDMS to relax back to its initial （初始）shape, transforms the planar device layout into a hemispherical（半球形的） s

8、hape This process allows the planar-to-spherical geometrical transformation to be accomplished without creating substantial （牢固的）strains in any of the active components of the focal plane array. (3)Glass lens(晶體，透鏡) substrate（基礎底片）。Adhesive(粘稠的)Design insideSurface Main frameElectrical propertiesShi

9、elded from lightExposed to lightshow a high-contrastresponse to light exposurePhotographsRepresentative output images1616Even more complex pictures can be obtained at highresolution using this simple scanning approachThe drawing of an eye acquired with a hemispherical cameraRay tracing(成像) predictionsGreen circles： calculated focal points Blue curve：the detector surface of the hemispherical