Alignment of lens and image sensor
First Claim
Patent Images
1. An optical system, comprising:
- a printed circuit board;
an image sensor package mounted on the printed circuit board, the image sensor package including an image sensor; and
a lens holder mounted on the printed circuit board and in contact with the printed circuit board, the lens holder including;
a lens, andone or more alignment features arranged on the lens holder,wherein the one or more alignment features contact the image sensor package and mechanically align the lens holder with the image sensor package,the one or more alignment features comprising a recessed portion of the lens holder, the recessed portion having one or more protrusions arranged on an inside surface, the one or more protrusions extending towards the printed circuit board from the inside surface of the recessed portion to a partial depth of the recessed portion, each protrusion comprising a straight inner edge extending in a direction parallel to a side of the image sensor package and toward the printed circuit board to an end of the protrusion closest to the printed circuit board, and each protrusion of the one or more protrusions contacting each of one or more sides of the image sensor package along a direction extending toward the printed circuit board while being spaced from the printed circuit board.
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Accused Products
Abstract
Embodiments related to the alignment of a lens with an image sensor in an optical device are disclosed. For example, one disclosed embodiment comprises an optical device including a printed circuit board, and an image sensor package mounted on the printed circuit board, wherein the image sensor package includes an image sensor. The optical system further comprises a lens holder including a lens, and one or more alignment features arranged on the lens holder. The one or more alignment features are configured to contact the image sensor package to mechanically align the lens holder with the image sensor package.
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Citations
17 Claims
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1. An optical system, comprising:
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a printed circuit board; an image sensor package mounted on the printed circuit board, the image sensor package including an image sensor; and a lens holder mounted on the printed circuit board and in contact with the printed circuit board, the lens holder including; a lens, and one or more alignment features arranged on the lens holder, wherein the one or more alignment features contact the image sensor package and mechanically align the lens holder with the image sensor package, the one or more alignment features comprising a recessed portion of the lens holder, the recessed portion having one or more protrusions arranged on an inside surface, the one or more protrusions extending towards the printed circuit board from the inside surface of the recessed portion to a partial depth of the recessed portion, each protrusion comprising a straight inner edge extending in a direction parallel to a side of the image sensor package and toward the printed circuit board to an end of the protrusion closest to the printed circuit board, and each protrusion of the one or more protrusions contacting each of one or more sides of the image sensor package along a direction extending toward the printed circuit board while being spaced from the printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for aligning a lens holder with an image sensor package mounted on a printed circuit board, the lens holder mounted on the printed circuit board and in contact with the printed circuit board, the lens holder comprising one or more lenses and one or more alignment features, the one or more alignment features comprising one or more protrusions located in a recessed portion of the lens holder, the one or more protrusions extending along a direction towards the printed circuit board to a partial depth of the recessed portion, each protrusion comprising a straight inner edge extending in a direction parallel to a side of the image sensor package to an end of the protrusion closest to the printed circuit board and along the side of the image sensor package, and the image sensor package comprising an image sensor, the method comprising:
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placing the lens holder proximate to the image sensor package; aligning the lens holder to the image sensor package by contacting the straight inner edge of the one or more protrusions in the recessed portion of the lens holder with one or more sides of the image sensor package that extend along a direction toward the printed circuit board such that the lens holder is in contact with the printed circuit board; and fixing the lens holder to the printed circuit board such that the one or more protrusions remain in contact with each of the one or more sides of the image sensor package that extend along the direction toward the printed circuit board and such that the one or more protrusions remained spaced from the printed circuit board. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A camera, comprising:
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a printed circuit board; an image sensor package mounted on a printed circuit board, the image sensor package comprising an image sensor and an image sensor package cover plate, the image sensor package comprising a sensor package datum corner; and a lens holder mounted on the printed circuit board and in contact with the printed circuit board, the lens holder including; a lens, and one or more alignment features located on an interior side of the lens holder, wherein the one or more alignment features are complementary to one or more of the image sensor package cover plate and the sensor package datum corner, and wherein the one or more alignment features contact one or more of the image sensor package cover plate and the sensor package datum corner and mechanically align the lens holder with the image sensor package, the one or more alignment features further comprising a recessed portion of the lens holder, the recessed portion having one or more protrusions arranged on an inside surface, the one or more protrusions extending along a direction extending toward the printed circuit board from the inside surface of the recessed portion to a partial depth of the recessed portion and contacting each of one or more sides of the image sensor package along the direction extending toward the printed circuit board while being spaced from the printed circuit board, each protrusion comprising a straight inner edge extending in a direction parallel to a side of the image sensor package to an end of the protrusion closest to the printed circuit board and along the side of the image sensor package. - View Dependent Claims (16, 17)
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Specification