Abstract: Optical modules are made using customizable spacers to reduce variations in the focal lengths of the optical channels, to reduce the occurrence of tilt of the optical channels, and/or prevent adhesive from migrating to active portions of an image sensor.

Abstract: Optical stack assemblies and fabrication techniques thereof. The optical stack assembly includes first and second sub-assemblies, each of which include a substrate and a sub-structure fixed to the respective substrate. Each sub-structures includes a respective first edge feature and a respective second edge feature that project away from the substrate of that sub-structure, each second edge feature being disposed laterally closer to an outer periphery of the respective sub-structure than the first edge feature of the same sub-structure. The first edge feature of the first sub-structure is in direct contact with the first edge feature of the second sub¬structure, while the second edge feature of the first sub-structure and the second edge feature of the second sub-structure are attached to one another by adhesive. At least one of the first or second sub-structures includes an optical element on a same side of the sub-structure as the first and second edge features of that sub-structure.

Abstract: Optical modules are made using customizable spacers to reduce variations in the focal lengths of the optical channels, to reduce the occurrence of tilt of the optical channels, and/or prevent adhesive from migrating to active portions of an image sensor.

Abstract: Image sensor modules include primary high-resolution imagers and secondary imagers. For example, an image sensor module may include a semiconductor chip including photosensitive regions defining, respectively, a primary camera and a secondary camera. The image sensor module may include an optical assembly that does not substantially obstruct the field-of-view of the secondary camera. Some modules include multiple secondary cameras that have a field-of-view at least as large as the field-of-view of the primary camera. Various features are described to facilitate acquisition of signals that can be used to calculate depth information.

Abstract: Optical modules are made using customizable spacers to reduce variations in the focal lengths of the optical channels, to reduce the occurrence of tilt of the optical channels, and/or prevent adhesive from migrating to active portions of an image sensor.

Abstract: The present disclosure describes methods of attaching surfaces together. In one aspect, a method includes depositing a first adhesive onto a first surface of a first item, the first adhesive forming a pattern that at least partially surrounds a region of the first surface where there is no first adhesive. A second adhesive is jetted onto the region of the first surface, wherein the second adhesive has a viscosity lower than a viscosity of the first adhesive. The first surface of the first item and a second surface of a second item are brought into contact with one another. The method also includes curing the first and second adhesives. While the methods can be particularly suitable for manufacturing optical light guide elements, the methods also can be used in other contexts and applications as well.

Abstract: The present disclosure describes modules operable to perform optical sensing. The module can be operable to distinguish between signals indicative of reflections from an object or interest and signals indicative of a spurious reflection such as from a smudge (i.e., a blurred or smeared mark) on the host device's cover glass. Signals assigned to reflections from the object of interest can be used to for various purposes, depending on the application (e.g., determining an object's proximity, a person's heart rate or a person's blood oxygen level).

Abstract: The present disclosure describes optoelectronic modules (e.g., hybrid lens array packages) that have multiple optical channels, each of which includes at least one beam shaping element (e.g., a lens) that is part of a laterally contiguous array. Each optical channel is associated with a respective light sensitive region of an image sensor. Some or all of the channels also can include at least one beam shaping element (e.g., a lens) that is not part of a laterally contiguous array. In some cases, the arrays can include alignment features to facilitate alignment of the arrays with one another.

Abstract: Optoelectronic modules for light emitting and/or light sensing include optical assemblies and active optoelectronic components. An optical assembly and a corresponding optoelectronic component can be aligned. The optoelectronic modules can include multiple optical assemblies and active optoelectronic components. Multiple optical assemblies and corresponding active optoelectronic components can be aligned independently of each other in various implementations of optoelectronic modules that include alignment features and optical assembly barrels.

Abstract: Optical modules are made using customizable spacers to reduce variations in the focal lengths of the optical channels, to reduce the occurrence of tilt of the optical channels, and/or prevent adhesive from migrating to active portions of an image sensor.

Abstract: Optoelectronic modules for light emitting and/or light sensing include optical assemblies and active optoelectronic components. An optical assembly and a corresponding optoelectronic component can be aligned. The optoelectronic modules can include multiple optical assemblies and active optoelectronic components. Multiple optical assemblies and corresponding active optoelectronic components can be aligned independently of each other in various implementations of optoelectronic modules that include alignment features and optical assembly barrels.

Abstract: Optical assemblies include a stack of optical elements each of which has one or more alignment features. Each alignment feature traces a respective curve along a surface of one of the optical elements. The alignment feature(s) of one optical element fit within the alignment feature(s) of the other. In some cases, the alignment features can help establish more precise lateral alignment of the optical elements.