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US 11,956,892 B2Granted
Method and structure for alignment of lens to optical product at PCBA level
AssigneePixart Imaging Inc.
InventorsWan Piang Lim, Sai Mun Lee
Life of this patent
Estimating the term…
Abstract
An optical package includes: a Printed Circuit Board including a plurality of cut-out sections; a lens, including a first plurality of protrusions corresponding respectively to the plurality of cut-out sections, wherein when the lens is placed under the PCB, the protrusions will pass through the cut-out sections; and a sensor for attaching on to the lens and the PCB. The first plurality of protrusions has a shape from the group including: snap features, guide posts and guide posts with tight-fit ribs.
Claims24
An optical package, comprising:
- a Printed Circuit Board (PCB) comprising a plurality of cut-out sections;
- a lens, comprising a first plurality of protrusions corresponding respectively to the plurality of cut-out sections, wherein the first plurality of protrusions comprises three protrusions being snap features, a first protrusion of the first plurality of protrusions is formed on a first side of the lens, and a second protrusion of the first plurality of protrusions is formed on a second side of the lens opposite to the first side, and when the lens is placed under the PCB, the first plurality of protrusions will pass through the cut-out sections;
- and
- a sensor for attaching on to the lens and the PCB;
- wherein the snap features comprise inward-facing protrusions which attach to the top of the sensor.
2 more elements
A method for designing an optical package, comprising:
- forming a lens comprising a first plurality of protrusions and a first feature;
- forming a Printed Circuit Board (PCB) comprising a plurality of cut-out sections corresponding respectively to the first plurality of protrusions;
- placing the lens under the PCB so that the first plurality of protrusions pass through the plurality of cut-out sections;
- and
- attaching a sensor on to the lens and the PCB, wherein the sensor comprises a protrusion, the step of attaching the sensor on to the lens and the PCB comprising:
- attaching the sensor on to the lens so that the protrusion corresponds to the first feature.
3 more elements
Dependencies are inferred from the claim text.