Abstract:
An opto-electronic module includes a detecting channel comprising a detecting member for detecting light and an emission channel comprising an emission member for emitting light generally detectable by said detecting member. Therein, a radiation distribution characteristic for an emission of light from said emission channel is non rotationally symmetric; and/or a sensitivity distribution characteristic for a detection in said detecting channel of light incident on said detection channel is non rotationally symmetric; and/or a central or main emission direction for an emission of light from said emission channel and a central or main detection direction for a detection of light incident on said detection channel are aligned not parallel to each other; and/or at least a first one of the channels comprises one or more passive optical components.
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:
Opto-electronic modules include conductive wiring and connections that can facilitate integrating the modules into an external device. Some opto-electronic modules include an opto-electronic stack that includes at least one lens and an opto-electronic element. Conductive paths can extend from the bottom to the top of the module. The conductive paths can include conductive pads on the surface of the opto-electronic element, as well as wiring at least partially embedded in a substrate and walls of a housing for the opto-electronic stack. Conductive connections can be disposed between a top surface of the substrate and the bottom surface of the walls such that the conductive connections electrically connect the second wiring to the first wiring and to the conductive pads on the surface of the opto-electronic element. The modules can be fabricated, for example, in wafer-level processes so that multiple opto-electronic modules can be manufactured at the same time.
Abstract:
Manufacturing opto-electronic modules (1) includes providing a substrate wafer (PW) on which detecting members (D) are arranged; providing a spacer wafer (SW); providing an optics wafer (OW), the optics wafer comprising transparent portions (t) transparent for light generally detectable by the detecting members and at least one blocking portion (b) for substantially attenuating or blocking incident light generally detectable by the detecting members; and preparing a wafer stack (2) in which the spacer wafer (SW) is arranged between the substrate wafer (PW) and the optics wafer (OW) such that the detecting members (D) are arranged between the substrate wafer and the optics wafer. Emission members (E) for emitting light generally detectable by the detecting members (D) can be arranged on the substrate wafer (PW). Single modules (1) can be obtained by separating the wafer stack (2) into separate modules.
Abstract:
This disclosure describes optical assemblies that generate output with substantial stability over a wide variation in temperature. The optical assemblies can be integrated, for example, as part of array generators arranged to project an array or other pattern of dots onto an object or projection plane.
Abstract:
The present disclosure describes light guides and a method of manufacturing light guides that include a rectangular prism-shaped bar, a first polymer or metal cladding on four sides of the rectangular prism-shaped bar, and a second polymer cladding disposed on the first polymer cladding on the four sides of the rectangular prism-shaped bar.
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:
This disclosure describes illumination assemblies operable to generate a patterned illumination that maintain high contrast over a wide temperature range. An implementation of the illumination assembly can include an array of monochromatic light sources positioned on an illumination plane, first and second optical elements, and an exit aperture. A chief ray of each light source within the array of monochromatic light sources can substantially converge at an exit aperture. In such implementations light generated by the array of monochromatic light sources can be used efficiently.
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.