H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 13/08 (2006.01) G02B 27/00 (2006.01) H05K 3/30 (2006.01) H05K 13/04 (2006.01)
Patent
CA 2160476
The invention relates to a simple and economic optical system for mutually po- sitioning SMD components having con- necting leads and the corresponding pads on pad carrying members with the object of bringing the connecting leads and pads together in one plane through translation or rotation, of positioning them and fix- ing them. The optical system utilizes a beam splitter, so that it is possible to ob- serve simultaneously with the human eye the spaces in front of and behind the beam splitter. For considerations of robustness the semi transparent mirror used to this end is evaporated on a transparent substrate which has a finite thickness. A substrate having finite thickness leads to an appar- ent displacement of the space behind the substrate relative to the space in front of the substrate. The invention relates to the compensation of this displacement by the installation of a compensation plate hav- ing identical optical properties in the space over the semi transparent mirror on the sub- strate. The semi transparent mirror is in- serted between two optically identical flat substrates.
Smart & Biggar
Van Den Brink Hans Gerard
LandOfFree
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