Image pickup device and substrate mounting apparatus for an electronic part
AssigneeFujitsu Limited
InventorYukihiko Ohashi
Life of this patent
Estimating the term…
Abstract
An image pickup device includes: a prism ii including light entrance holes (16, 16) and a light exit hole (17) for exiting incident light by refracting the incident light from the light entrance holes (16, 16) and; a lens (12) located on a light exit hole (17) side of the prism (11); a camera (13) located on an opposite side to the prism (11) with respect to the lens (12), and a base (14) that supports the prism (11), the lens (12), and the camera (13). The light exit hole (16) of the prism (11), the lens (12), and the camera (13) are arranged on the same optical axis (10). Any one or both of the prism (11) and the lens (12) and/or the lens (12) and the camera (13) are separated from each other.
Claims10
An image pickup device, comprising:
- a prism including a cylindrical portion having a light entrance hole and a light exiting hole;
- a lens located on a light exiting hole side of the cylindrical portion, one end of the lens being inserted into an inner portion of the cylindrical portion;
- a camera located on an opposite side to the prism with respect to the lens;
- and
- a base that supports at least the prism and the lens, the light exiting hole of the prism, the lens and the camera being arranged on the same optical axis,
- wherein the prism and the lens are separated from each other by a gap between an outer surface of the lens and a corresponding inner surface of the cylindrical portion, and
- wherein the base is formed in a shape of a bar and a major axis of the bar shape extends in a direction parallel to the optical axis.
A substrate mounting apparatus for an electronic part having an image pickup device, comprising:
- a mounting device mounting the electronic part on a substrate;
- a positional displacement detecting device detecting a positional displacement between the electronic part and the substrate before mounting of the electronic part on the substrate;
- and
- an alignment device correcting the positional displacement between the electronic part and the substrate based on a result obtained by the positional displacement detecting device, wherein:
- the positional displacement detecting device includes an image pickup device including:
- a prism including a cylindrical portion having a light entrance hole and a light exiting hole;
- a lens located on a light exiting hole side of the cylindrical portion, one end of the lens being inserted into an inner portion of the cylindrical portion;
- a camera located on an opposite side to the prism with respect to the lens;
- and
- a base that supports at least the prism and the lens, the light exiting hole of the prism, the lens and the camera being arranged on the same optical axis,
- wherein the prism and the lens are separated from each other by a gap between an outer surface of the lens and a corresponding inner surface of the cylindrical portion,
- wherein the base is formed in a shape of a bar and a major axis of the bar shape extends in a direction parallel to the optical axis,
- wherein an image of the substrate and an image of the electronic part are obtained by the camera through the prism and the lens, and the positional displacement between the electronic part and the substrate is detected based on data of the obtained images.
Dependencies are inferred from the claim text.