Lens assemblies
AssigneeSnap Inc.
InventorsChao Chen, Emily Lauren Clopp
Life of this patent
Estimating the term…
Abstract
Optical systems and lens assemblies suitable for use with, for example, AR applications on portable electronic devices, including wearable devices such as electronic eyewear. The lens assembly supports a single lens or multiple lenses. The lens assembly includes a lens and a flange that defines a recess for receiving an adhesive. When the lens is placed on the flange, the adhesive secures the lens to the flange. In some implementations, the lens includes a band or strip of paint or other indicia applied along the perimeter of the lens to inhibit visibility of any excess adhesive. A lens assembly that supports both a front and rear lens is particularly useful for presenting AR experiences.
Claims20
A lens assembly comprising:
- a frame defining a flange sized and shaped to support a lens, wherein the lens is characterized by an engaged surface oriented toward the flange;
- and
- a band extending along at least a portion of the engaged surface, wherein the band is sized and shaped to inhibit exposure of an adhesive to ultraviolet radiation, and
- wherein the flange defines a recess that is sized and shaped to receive the adhesive that secures the lens to the frame.
A method of fabricating a lens assembly, the method comprising:
- providing a frame defining a flange and a recess, wherein the flange is sized and shaped to support a lens wherein the lens is characterized by an engaged surface oriented toward the flange;
- applying a band along at least a portion of the engaged surface, wherein applying the band comprises:
- (a) applying the band along and near a perimeter edge of the engaged surface,
- (b) sizing and shaping the band to inhibit visibility of an adhesive, and
- (c) building the band to define a textured surface to facilitate adhesion between the adhesive and the lens;
- applying the adhesive into the recess;
- and
- placing a lens into contact with the flange and the adhesive.
A lens assembly comprising:
- a frame defining a flange sized and shaped to support a lens, wherein the lens is characterized by an engaged surface oriented toward the flange;
- a band extending along at least a portion of the engaged surface,
- wherein the flange defines a recess that is sized and shaped to receive an adhesive that secures the lens to the frame;
- and
- an additional frame defining an additional flange sized and shaped to support an additional lens,
- wherein the additional flange comprises an additional recess sized and shaped to receive an additional adhesive, such that the additional adhesive facilitates securing the additional lens to the additional frame.
Dependencies are inferred from the claim text.