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Surface-mounted optoelectronic device

  • US 4,727,457 A
  • Filed: 09/22/1986
  • Issued: 02/23/1988
  • Est. Priority Date: 01/24/1986
  • Status: Expired due to Term
First Claim
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1. An optoelectronic device for surface mounting comprising an insulating substrate having an upper and a lower surface, at least one optoelectronic element mounted at said upper surface, contact members on said lower surface, conductive strips disposed on the upper surface and in electrical contact with said contact members on the lower surface, a first of said conductive strips being in electrical contact with the lower surface of the optoelectronic element and at least a second of said conductive strips being connected to the upper surface of the optoelectronic element, an annular spacer enclosing but spaced apart from said optoelectronic element and fixed to the upper surface of the insulating substrate so that its axis is aligned with the optical axis of the optoelectronic element, said spacer having a height exceeding the thickness of the optoelectronic element, and a spherical lens of a transparent material having a diameter exceeding the inner diameter of the annular spacer, glued to the latter and spaced apart from the upper surface of the optoelectronic element by a distance such that the plane of light emission of the optoelectronic element is situated at a distance d from the spherical lens which is smaller than or equal to its extension, which is the distance between the focus F and the edge of the lens.

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