LENS ARRAY AND OPTICAL MODULE COMPRISING SAME

专利名称：LENS ARRAY AND OPTICAL MODULE

COMPRISING SAME

发明人：MORIOKA Shimpei,NIIMI

Tadanobu,SHIBUYA Kazutaka

申请号：EP11851585.7申请日：20111208公开号：EP2657738A1公开日：20131030

专利附图：

摘要：A lens array and an optical module are provided in which appropriate

attachment of a photovoltaic device taking into consideration deformation of a lens array

main body as a result of temperature change can be performed. The invention satisfiesa+b+d1+e+ΔL≤W1 where, a: positional accuracy of first lens faces 11 b: positionalaccuracy of second lens faces 12 d1: positional accuracy of light-emitting elements 7 e:positional accuracy of optical fibers 5 ΔL=α×ΔT×L (α: coefficient of linear expansion oflens array main body 4; ΔT: temperature change in the lens array main body 4; and L:distance from a fixed position on a first surface 4a to a position of a lens face on the firstsurface 4a farthest from the fixed position) W1: a distance between attachment positionsbefore and after movement, under a premise that a photovoltaic device 3 is moved froman attachment position at which optical coupling efficiency between the light-emittingelements 7 and fiber ends 5a indicates a maximum efficiency to an attachment position atwhich efficiency reduction equivalent to 2dB is indicated.

申请人：Enplas Corporation

地址：30-1, Namiki 2-chome Kawaguchi-shi Saitama-ken 332-0034 JP

国籍：JP

代理机构：Harrasz, Julia Konstanze

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