LENS BARREL, LENS-BARREL WAFER, AND ASSOCIATED METHOD
First Claim
1. A lens barrel comprising:
- an annular lower layer defining a lower aperture therethrough;
an annular upper layer defining an upper aperture therethrough having an upper width; and
an annular middle layer, bonded between the lower layer and the upper layer, and defining a middle aperture having a middle width that is less than the upper width to form a ledge for supporting a lens disposed in the upper aperture,the lower aperture, the middle aperture, and the upper aperture collectively forming at least part of a barrel aperture through the lower, middle, and upper layers.
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Accused Products
Abstract
A method for forming a lens barrel includes aligning each of a plurality of upper apertures of an upper wafer to (i) a respective one of a plurality of middle apertures of a middle wafer and (ii) a respective one of a plurality of lower apertures of a lower wafer. The middle wafer is between the upper wafer and the lower wafer. The method also includes bonding the middle wafer to the upper wafer to form a lens barrel wafer. Each triad of co-aligned upper, middle, and lower apertures forms a wafer aperture spanning between a top surface of the upper wafer and a bottom surface of the lower wafer. Each upper aperture has a respective upper width and each middle aperture has a respective middle width less than the respective upper width to form, in each triad, a ledge for supporting a lens in the upper aperture.
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Citations
16 Claims
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1. A lens barrel comprising:
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an annular lower layer defining a lower aperture therethrough; an annular upper layer defining an upper aperture therethrough having an upper width; and an annular middle layer, bonded between the lower layer and the upper layer, and defining a middle aperture having a middle width that is less than the upper width to form a ledge for supporting a lens disposed in the upper aperture, the lower aperture, the middle aperture, and the upper aperture collectively forming at least part of a barrel aperture through the lower, middle, and upper layers. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A lens-barrel wafer comprising:
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a lower wafer including a plurality of lower apertures each having a respective lower width and spanning between a bottom surface and a top surface of the lower wafer; an upper wafer including a plurality of upper apertures each having a respective upper width and spanning between a bottom surface and a top surface of the upper wafer; and a middle wafer, bonded between the top surface of the lower wafer and the bottom surface of the upper wafer, and including a plurality of middle apertures each aligned with a respective one of the plurality of lower apertures and a respective one of the plurality of upper apertures, each middle aperture, a lower aperture aligned thereto, and an upper aperture aligned thereto forming a wafer aperture spanning between the bottom surface of the lower wafer and the top surface of the upper wafer, each middle aperture having a respective width less than the respective upper width of the upper aperture aligned thereto, to form a ledge for supporting a lens placed in the upper aperture aligned thereto. - View Dependent Claims (8, 9, 10)
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11. A method for forming a lens barrel comprising:
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aligning each of a plurality of upper apertures of an upper wafer to (i) a respective one of a plurality of middle apertures of a middle wafer and (ii) a respective one of a plurality of lower apertures of a lower wafer, the middle wafer being between the upper wafer and the lower wafer; and bonding the middle wafer to the upper wafer to form a lens barrel wafer, each triad of co-aligned upper, middle, and lower apertures forming a wafer aperture spanning between a top surface of the upper wafer and a bottom surface of the lower wafer, each of the upper apertures having a respective upper width and each of the middle apertures having a respective middle width that is less than the respective upper width to form, in each triad, a ledge for supporting a lens in the upper aperture. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification