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Placement and bonding technique for optical elements

  • US 5,194,105 A
  • Filed: 08/29/1991
  • Issued: 03/16/1993
  • Est. Priority Date: 08/29/1991
  • Status: Expired due to Term
First Claim
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1. A method for bonding a curved optical element to slanted opposing sidewalls of a substrate comprising the steps of:

  • providing a retracting element holder surrounding a bonding tool;

    providing a vacuum channel communicating with the holder;

    contacting the holder to the element and applying a vacuum to the vacuum channel to cause the element to adhere to the holder;

    moving the element to a location above the slanted opposing sidewalls of the substrate;

    releasing the vacuum, thereby to allow the element to nest between opposing sidewalls;

    causing the holder to retract vertically upwardly so as to expose a bonding surface of the bonding tool;

    and lowering the bonding tool to contact the element and force it against the opposing sidewalls.

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