Optical sensor assembly
AssigneePixart Imaging Inc.
InventorsChih-Ming Sun, Po-Wei Yu
Life of this patent
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Abstract
An optical sensor assembly is provided. The optical sensor assembly includes a circuit board, an optical sensor positioned on the circuit board, and a front cover attached to the circuit board and covering the optical sensor. The front cover includes an optical element configured to guide or condense an incident light of a predetermined wavelength onto the optical sensor. The front cover is made of polypropylene or polyethylene. The predetermined wavelength is in a range from 8 micrometers to 12 micrometers.
Claims20
An optical sensor assembly, comprising:
- a circuit board;
- an optical sensor positioned on the circuit board;
- and
- a front cover comprising a receiving cavity configured to accommodate the optical sensor, wherein
- the front cover further comprises:
- an optical element configured to condense an incident light of a predetermined wavelength onto the optical sensor;
- a curved sheet;
- and
- a planar frame connected to and surrounding the curved sheet,
- the optical element is positioned in the curved sheet, and the optical element is parallel to a sensing surface of the optical sensor,
- the front cover is made of polypropylene or polyethylene, and
- the predetermined wavelength is in a range from 8 micrometers to 12 micrometers.
An optical sensor assembly, comprising:
- a circuit board;
- an optical sensor positioned on the circuit board;
- and
- a front cover comprising a receiving cavity configured to accommodate the optical sensor, wherein
- the front cover further comprises:
- an optical element configured to guide an incident light of a predetermined wavelength to the optical sensor,
- a curved sheet;
- and
- a planar frame connected to and surrounding the curved sheet,
- the optical element is positioned in the curved sheet, and the optical element is parallel to a sensing surface of the optical sensor,
- the front cover is made of polypropylene or polyethylene, and
- the predetermined wavelength is in a range from 8 micrometers to 12 micrometers.
A front cover of an optical sensor assembly, the optical sensor assembly comprising an optical sensor, the front cover comprising:
- a receiving cavity configured to accommodate the optical sensor;
- a curved sheet;
- a planar frame connected to and surrounding the curved sheet;
- and
- an optical element positioned in the curved sheet, and configured to condense an incident light of a predetermined wavelength onto the optical sensor.
Dependencies are inferred from the claim text.