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US 8,077,248 B2Granted
Optical device and production method thereof
AssigneePanasonic Corporation
InventorsMasanori Minamio, Tetsushi Nishio, Kenji Tsuji
Life of this patent
Estimating the term…
Abstract
A lead frame is buried in mold resin to form a mold structure. A wide blade is used to make an indentation having an alignment step in the mold structure. Then, a narrow blade is used to split the mold structure. At the outer perimeter portion of a base which is a separate part separated from the mold structure, an alignment step is formed. Due to the alignment step, an optical element, such as a mirror tube of an imaging optical system, or the like, is readily and quickly attached.
Claims23
An optical device, comprising:
- an adapter including a tubular portion having a first surface and a second surface, an entirety of which surrounds an opening portion;
- a translucent member having an upper surface, a bottom surface opposite to the upper surface and a side surface, and attached to the first surface of the tubular portion of the adapter at a peripheral surface area of the bottom surface, the first surface of the tubular portion and the upper surface of the translucent member facing against a direction of incoming light;
- an optical element chip attached onto the second surface of the tubular portion such that a major surface of the optical element chip faces the translucent member;
- and
- an alignment step formed in the tubular portion of the adapter and having a horizontal face and a vertical face parallel to the side surface of the translucent member, wherein:
- a sealing member is formed on the side surface of the translucent member and on the first surface of the tubular portion, and
- an outer perimeter end surface of the sealing member and the vertical face of the alignment step of the adapter lie in a same plane.
4 more elements
An optical device, comprising:
- an adapter having an opening surrounded by a wall portion and a base portion located in the opening;
- a translucent member having a first surface, a second surface opposite to the first surface and a side surface, the translucent member being attached to an upper surface of the wall portion of the adapter and covering the opening of the adaptor, the first surface touching on the wall portion;
- an optical element chip disposed on the base portion so that a main surface of the optical element chip for receiving light faces the translucent member;
- an alignment step formed at an outer surface of the wall portion of the adapter, the alignment step having a step portion substantially parallel to the first surface of the translucent member;
- and
- a sealing member disposed on the side surfaces of the translucent member and on the wall portion of the adaptor, wherein
- an outer perimeter end surface of the sealing member and the side portion of the alignment step lie in a same plane.
4 more elements
An optical device, comprising:
- an adapter having a first surface and a second surface opposite to the first surface, the first surface being over the second surface;
- a translucent member having an upper surface, a bottom surface opposite to the upper surface, and a side surface;
- an optical element chip connected to the adapter such that a major surface of the optical element chip faces the translucent member;
- an alignment step formed in the adapter and having a horizontal face and a vertical face parallel to the side surface of the translucent member;
- and
- an external electrode disposed under the second surface of the adapter, wherein:
- a sealing member is formed on the side surface of the translucent member,
- the horizontal face of the alignment step is lower than the bottom surface of the translucent member, and
- the external electrode is disposed directly under the alignment step.
6 more elements
Dependencies are inferred from the claim text.