Abstract:
An apparatus for producing structured light comprises a first optical arrangement which comprises a microlens array (L1) comprising a multitude of transmissive or reflective microlenses (2) which are regularly arranged at a lens pitch P and an illumination unit for illuminating the microlens array. The illumination unit comprises an array (S1) of light sources (1) for emitting light of a wavelength L each and having an aperture each, wherein the apertures are located in a common emission plane which is located at a distance D from the microlens array. For the lens pitch P, the distance D and the wavelength L, the following equation applies P2=2LD/N, wherein N is an integer with N≥1. High-contrast high-intensity light patterns can be produced. Devices comprising such apparatuses can be used for depth mapping.
Abstract:
This disclosure describes various modules that can provide ultra-precise and stable packaging for an optoelectronic device such as a light emitter or light detector. The modules include vertical alignment features that can be machined, as needed, during fabrication of the modules, to establish a precise distance between the optoelectronic device and an optical element or optical assembly disposed over the optoelectronic device.
Abstract:
A method for manufacturing one or more optical devices, each comprising a first member and a second member, and a spacer arranged between the first and second members. The method includes manufacturing a spacer wafer including a multitude of the spacers. Manufacturing the spacer wafer includes providing a replication tool having spacer replication sections; bringing the replication tool in contact with a first surface of another wafer; bringing a vacuum sealing chuck into contact with a second surface of the other wafer while the other wafer remains in contact with the replication tool; and injecting a liquid, viscous or plastically deformable material through an inlet of the vacuum sealing chuck so as to substantially fill the spacer replication sections.
Abstract:
Various optoelectronic modules are described and include one or more optoelectronic devices. Each optoelectronic module includes one or more optoelectronic devices. Sidewalls laterally surround each optoelectronic device and can be in direct contact with sides of the optoelectronic device or, in some cases, with an overmold surrounding the optoelectronic device. The sidewalls can be composed, for example, of a vacuum injected material that is non-transparent to light emitted by or detectable by the optoelectronic device. The module also includes a passive optical element. Depending on the implementation, the passive optical element can be on a cover for the module, directly on a top surface of the optoelectronic device, or on an overmold surrounding the optoelectronic device. Methods of fabricating such modules are described as well, and can facilitate manufacturing the modules using wafer-level processes.
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.
Abstract:
The optical apparatus comprises a semiconductor substrate and at least one optics substrate. The semiconductor substrate comprises a first active region establishing a first image sensor, said semiconductor substrate further comprising an additional active region, different from said first active region. The additional active region establishes or is part of an additional sensor which is not an image sensor. And the at least one optics substrate comprises for said first image sensor at least one lens element for imaging light impinging on the optical apparatus from a front side onto the first image sensor. Preferably, at least two or rather at least three image sensors are provided, such that a computational camera can be realized. The additional sensor may comprise, e.g., an ambient light sensor and/or a proximity sensor.
Abstract:
The opto-electronic module (1) comprises a first substrate member (P); a third substrate member (B); a second substrate member (O) arranged between said first and third substrate members and comprising one or more transparent portions (ta, tb) through which light can pass, said at least one transparent portion comprising at least a first optical structure (5a;5a′;5b;5b′); a first spacer member (S1) comprised in said first substrate member (P) or comprised in said second substrate member (O) or distinct from and located between these, which comprises at least one opening (4a;4b); a second spacer member (S2) comprised in said second substrate member (O) or comprised in said third substrate member (B) or distinct from and located between these, which comprises at least one opening (3); a light detecting element (D) arranged on and electrically connected to said first substrate member (P); a light emission element (E) arranged on and electrically connected to said first substrate member (P); and a sensing element (8) comprised in or arranged at said third substrate member (B). Such modules (1) are particularly suitable as sensor modules for sensing a magnitude such as a pressure.
Abstract:
The opto-electronic module (1) comprises—a first substrate member (P); —a second substrate member (O); —a first spacer member (S) comprised in said first substrate member or comprised in said second substrate member or distinct from and located between these, which comprises at least one opening (4); —a light emission element (E) arranged on said first substrate member; —a first passive optical component (8); at least one of said first and second substrate members comprising one or more transparent portions (t) through which light can pass, said first passive optical component (8) being comprised in or distinct from said one or more transparent portions, and wherein said first passive optical component has adjustable optical properties. Such modules (1) are well mass-producible in high precision and can be used in photo cameras, e.g., as flashes.
Abstract:
The optical device comprises a first substrate (SI) comprising at least one optical structure (1) comprising a main portion (2) and a surrounding portion (3) at least partially surrounding said main portion. The device furthermore comprises non-transparent material (5, 5a, 5b) applied onto said surrounding portion. The opto-electronic module comprises a plurality of these optical devices comprised in said first substrate. The method for manufacturing an optical device comprises the steps of a) providing a first substrate comprising at least one optical structure comprising a main portion and a surrounding portion at least partially surrounding said main portion; and b) applying a non-transparent material onto at least said surrounding portion. Said non-transparent material is present on at least said surrounding portion still in the finished optical device.
Abstract:
The method for manufacturing an object comprises the steps of (a) providing a wafer comprising a multitude of semi-finished objects; (b) separating said wafer into parts referred to as sub- wafers, at least one of said sub-wafers comprising a plurality of said semi-finished objects; (c) processing at least a portion of said plurality of semi-finished objects by subjecting said at least one sub-wafer to at least one processing step; and preferably also the step of (d) separating said at least one sub-wafer into a plurality of parts.