Abstract: Techniques for controlling the flow of replication material (e.g., epoxy) during the formation of replicated optical elements include providing a transparent substrate (220) onto which the optical elements are to be replicated. The substrate (220) includes a structured UV curable shield (202) adhering to its surface. The UV curable shield (202), in turn, has openings (203) that expose portions of the surface of the transparent substrate (220) for replication of the optical elements. During the replication process, excess replication material (124A) may flow onto the UV curable shield (202), which subsequently can be cured so as to facilitate the release and removal of the shield (202) along with the excess replication material (124A).

Abstract: An optical emitter arrangement comprises a housing, an electrical interconnection member, and an optical emitter device mounted on the electrical interconnection member, wherein the electrical interconnection member is attached to the housing such that the optical emitter device is located within the housing. The optical emitter arrangement further comprises an optical system including an optical element for transmitting light emitted by the optical emitter device, the optical system being attached to the housing so that the optical element can receive light emitted by the optical emitter device and transmit the received light out of the housing, and the optical system further including a sensed element. The optical emitter arrangement also comprises a proximity sensor mounted on the electrical interconnection member for sensing a proximity of the sensed element.

Abstract: A method for use in manufacturing an optical emitter arrangement comprises holding an electrically conductive base member and two electrically conductive base elements in a predetermined spatial relationship, and providing two electrically conductive projections, wherein each projection extends in a direction away from a surface of a corresponding one of the base elements and wherein each projection terminates at a corresponding outer end. The method further comprises bringing a projecting portion of a surface profile of a mold tool into engagement with an area of a surface of the base member whilst bringing other portions of the surface profile of the mold tool into engagement with the outer ends of the projections so as to form a void that extends away from the surface of the base member around the projecting portion of the surface profile of the mold tool and that extends away from the surface of each of the base elements around each projection without extending over the outer end of each projection.

Abstract: Flow barriers such as trenches (144) and/or walls (152) laterally surrounding an aperture (142) in a coating (140) on a transparent substrate (120) help control the flow of replication material (124) during the formation of a replicated optical element on the aperture (142).

Abstract: Techniques for controlling the flow of replication material (e.g., epoxy) during the formation of replicated optical elements include providing a transparent substrate (220) onto which the optical elements are to be replicated. The substrate (220) includes a structured UV curable shield (202) adhering to its surface. The UV curable shield (202), in turn, has openings (203) that expose portions of the surface of the transparent substrate (220) for replication of the optical elements. During the replication process, excess replication material (124A) may flow onto the UV curable shield (202), which subsequently can be cured so as to facilitate the release and removal of the shield (202) along with the excess replication material (124A).

Abstract: A method of manufacturing a plurality of optical elements includes providing a first wafer (200) having lower alignment features (192) arranged on a first surface of the substrate, providing a second wafer (201) comprising, on a replication side, a plurality of replication sections, each replication section defining a surface structure of one of the optical elements, the second wafer (201) further comprising upper alignment features (194) protruding, on the replication side, further than an outermost feature of the replication sections, depositing liquid droplets (196) on the first side of the first wafer (200), and bringing the second wafer (201) and the first side of the first wafer (200) together, with liquid droplets (196) between the first wafer (200) and the second wafer (201), the upper alignment features (194) contacting the liquid droplets (196) on the lower alignment features (192) on the first side of the first wafer (200), and thereby causing the second wafer (201) to align with the first wafer (2

Abstract: A method includes: providing a substrate, in which a first surface of the substrate includes at least one optical element module region defining an area in which multiple optical elements are to be disposed; forming, for each optical element module region on the first surface of the substrate, a corresponding reflow waste channel in the first surface of the substrate and around a perimeter of the optical element module region; providing a first optical element mold, in which a surface of the first optical element mold includes multiple first cavities, each first cavity defining a shape of a corresponding optical element of the multiple optical elements; providing resin globules between the surface of the optical element mold and the first surface of the substrate; and compressing the first optical element mold to the first surface of the substrate so that the resin fills the multiple first cavities, and so that excess resin flows into the reflow waste channel.

Abstract: An optics wafer includes replicated optical elements such as lenses that can be formed without the use of a separate glass or other substrate on which the optical elements would otherwise need to be replicated or mounted.