Patent ID: 8517545
Filing Date: 2013-08-27
Classification: B81B,B81C,Y10T

Abstract:
1. Cover for microsystems that is made in one piece from a substrate, said cover defining at least two substrate planes on different sides of the cover ( 33 = 1 a , 1 b ), said cover comprises one or more cover units ( 34 ), wherein at least one cover unit ( 34 ) has at least one first recess ( 1 c ), wherein the first recess ( 1 c ) is at least partly bounded by at least one optical window ( 8 , 30 , 32 ) which comprises at least two transmission surfaces ( 9 ) whose root mean square surface roughness is less than or equal to 25 nm and each of the at least two transmission surfaces is arranged to be inclined and/or displaced relative to the substrate plane on the side of the cover where the corresponding transmission surface is arranged.