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Method for manufacturing optical device, optical device, and biological information detector

  • US 8,915,857 B2
  • Filed: 02/07/2011
  • Issued: 12/23/2014
  • Est. Priority Date: 02/18/2010
  • Status: Expired due to Fees
First Claim
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1. An optical device, comprising:

  • a substrate having a first surface and a second surface that is opposite the first surface;

    a light-emitting element having a first center;

    a light-receiving element having a second center, the light-receiving element being installed at a side of the first surface, the light-receiving element further having a rectangular shape with respect to a plan view as viewed in a normal direction relative to the first surface or the second surface, at least a part of the light-emitting element being arranged at a position that overlaps the light-receiving element with respect to the plan view;

    a bonding pad being provided at a position that is displaced relative to the second center towards a first direction which is perpendicular to the normal direction, the bonding pad being disposed adjacent to a corner of the light-receiving element with respect to the plan view;

    a first reflecting part configured to reflect light emitted by the light-emitting element, the first reflecting part including a first side part and a second side part opposite the first side part, the first side part being disposed on the second surface of the substrate, the light-emitting element being disposed on the second side part, the first reflecting part having a center axis that extends in the normal direction through a diameter center of a diameter of the first reflecting part in the first direction,the first center being provided at a position that is displaced relative to the second center towards a second direction, which is opposite the first direction and in a direction away from the first center, with respect to the plan view,the first center of the light-emitting element aligning the center axis of the first reflecting part with respect to the plan view.

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