Abstract:
Then optical device comprises a first member (P) and a second member (O) and, arranged between said first and second members, a third member (S) referred to as spacer. The spacer (S) comprises one or more portions referred to as distancing portions (Sd) in which the spacer has a vertical extension referred to as maximum vertical extension; at least two separate portions referred to as open portions (4) in which no material of the spacer is present; and one or more portions referred to as structured portions (Sb) in which material of the spacer is present and in which the spacer has a vertical extension smaller than said maximum vertical extension. Such optical devices can be used in or as multi-aperture cameras.
Abstract:
A method of forming a wafer stack includes providing a sub-stack comprising a first wafer and a second wafer. The sub-stack includes a first thermally-curable adhesive at an interface between the upper surface of the first wafer and the lower surface of the second wafer. A third wafer is placed on the upper surface of the second wafer. A second thermally-curable adhesive is present at an interface between the upper surface of the second wafer and the lower surface of the third wafer. Ultra-violet (UV) radiation is provided in a direction of the upper surface of the third wafer to cure a UV-curable adhesive in openings in the second wafer and in contact with portions of the third wafer so as to bond the third wafer to the sub-stack at discrete locations. Subsequently, the third wafer and the sub-stack are heated so to cure the first and second thermally-curable adhesives.
Abstract:
The present disclosure describes techniques for testing optical devices in a manner that, in some implementations, simulates the environment in which the devices will be used when they are integrated into the end-product or system. For example, one aspect includes providing a transparent sheet that is positioned near the optical device in a manner that simulates at least some aspects of the environment when the device is incorporated into the end-product or system. The testing can be performed, for example, while the optical devices are in production or at some other time prior to their being integrated into an end-product or system.
Abstract:
The present disclosure describes techniques for testing optical devices in a manner that, in some implementations, simulates the environment in which the devices will be used when they are integrated into the end-product or system. For example, one aspect includes providing a transparent sheet that is positioned near the optical device in a manner that simulates at least some aspects of the environment when the device is incorporated into the end-product or system. The testing can be performed, for example, while the optical devices are in production or at some other time prior to their being integrated into an end-product or system.
Abstract:
A method for manufacturing an optical device comprising providing a plurality of initials bars each having a first side face presented with a first optical component arrangement; positioning the initial bars in a row with their first side faces facing a neighboring one of the initial bars; fixing the initial bars to obtain a bar arrangement; obtaining prism bars by segmenting the bar arrangement by at least one of the steps: conducting a plurality of cuts so that each prism bar comprises a portion of at least two different ones of the initial bars, separating the bar arrangement into sections along cut lines or by creating cut faces at an angle with initial-bar directions; dividing the first optical component arrangement for obtaining a plurality of passive optical components, wherein each prism bar comprises one or more passive optical components comprising a first reflective face each which is of non-planar shape; segmenting prism bars into parts.
Abstract:
The wafer-level manufacturing method makes possible to manufacture ultrathin optical devices such as opto-electronic modules. A clear encapsulation is applied to an initial wafer including active optical components and a wafer-size substrate. Thereon, a photostructurable spectral filter layer is produced which defines apertures. Then, trenches are produced which extend through the clear encapsulation and establish sidewalls of intermediate products. Then, an opaque encapsulation is applied to the intermediate products, thus filling the trenches and producing aperture stops. Cutting through the opaque encapsulation material present in the trenches, singulated optical modules are produced, wherein side walls of the intermediate products are covered by the opaque encapsulation material. The wafer-size substrate can be attached to a rigid carrier wafer during most process steps.
Abstract:
The present disclosure describes wafer-level processes for fabricating optoelectronic device subassemblies that can be mounted, for example, to a circuit substrate, such as a flexible cable or printed circuit board, and integrated into optoelectronic modules that include one or more optical subassemblies stacked over the optoelectronic device subassembly. The optoelectronic device subassembly can be mounted onto the circuit substrate using solder reflow technology even if the optical subassemblies are composed of materials that are not reflow compatible.
Abstract:
An optoelectronic module includes a cover substrate including a passive optical element, a base substrate including an optoelectronic device, and a spacer layer joining the cover substrate to the base substrate. The spacer layer includes multiple first spacer elements fixed to a surface of the cover substrate and multiple second spacer elements fixed to a surface of the base substrate, in which each first spacer element is joined to a corresponding second spacer element through an adhesive layer, and in which the cover substrate, base substrate, and spacer layer define an interior region of the module in which the optical element is aligned with the optoelectronic device.
Abstract:
Disclosed are optical devices and methods of manufacturing optical devices. An optical device can include a substrate; an optical emitter chip affixed to the front surface of the substrate; and an optical sensor chip affixed to the front surface of the substrate. The optical sensor chip can include a main sensor and a reference sensor. The optical device can include an opaque dam separating the main optical sensor and the reference sensor. The optical device can include a first transparent encapsulation block encapsulating the optical emitter chip and the reference optical sensor and a second transparent encapsulation block encapsulating the main optical sensor. The optical device can include an opaque encapsulation material encapsulating the first transparent encapsulation block and the second transparent encapsulation block with a first opening above the main optical sensor and a second opening above the optical emitter chip.
Abstract:
The present disclosure describes imaging techniques and devices having improved autofocus capabilities. The imaging techniques can include actively illuminating a scene and determining distances over the entire scene and so that a respective distance to each object or point in the scene can be determined. Thus, distances to all objects in a scene (within a particular range) at any given instant can be stored. A preview of the image can be displayed so as to allow a user to select a region of the scene of interest. In response to the user's selection, the imager's optical assembly can be adjusted automatically, for example, to a position that corresponds to optimal image capture of objects at the particular distance of the selected region of the scene.