Light tunnels, methods for forming a light tunnel, and apparatuses including light tunnels are disclosed herein. A light tunnel includes a plurality of reflectors cooperatively engaging with one another by a series of notches therein. The inner edges of the reflectors are chamfered to improve ease of assembly and decrease chipping of the edges during assembly. An adhesive can be applied at junctions between the reflectors on their outer surfaces. This construction eliminates or retards light leakage and adhesive leakage.

A method of anti-fouling of a surface while said surface is at least partially submersed in an liquid environment, comprising: providing an anti-fouling light; distributing at least part of the light through an optical medium comprising a silicone material and/or UV grade fused silica; emitting the anti-fouling light from the optical medium and from the surface.

A lens that spreads light from a point light source includes a light entry side having a first Fresnel structure, a light exit side having a second Fresnel structure different from the first Fresnel structure, a section plane located entirely between the first and second Fresnel structures so that the lens is flat, and a central axis as an optical axis perpendicular to the section plane, wherein a height of Fresnel rings of the first Fresnel structure, referred to the section plane, increases in the direction away from the central axis, the Fresnel rings of the first Fresnel structure each have an entry surface facing towards the central axis and a deflecting surface facing away from the central axis, and Fresnel rings of the second Fresnel structure each have a mirror surface facing towards the central axis and an exit surface facing away from the central axis.

A laser radiation system according to a viewpoint of the present disclosure includes a first optical system configured to convert a first laser flux into a second laser flux, a multimirror device including mirrors, configured to be capable of controlling the angle of the attitude of each of the mirrors, and configured to divide the second laser flux into laser fluxes and reflect the laser fluxes in directions to produce the divided laser fluxes, a Fourier transform optical system configured to focus the divided laser fluxes, and a control section configured to control the angle of the attitude of each of the mirrors in such a way that the Fourier transform optical system superimposes the laser fluxes, which are divided by the mirrors separate from each other by at least a spatial coherence length of the second laser flux, on one another.

An apparatus for imaging a includes an light source for illuminating the sample simultaneously in a line focus or an array of foci; and a sensor for detecting photons emitted or scattered from the sample simultaneously in an array of fields of view. An array of sub-observation volumes in the sample, from which photons are emitted or scattered during imaging, is defined by the volumes in space where the line focus or array of foci from the light source overlap with the corresponding array of field of views of the sensor. A cylindrical sample holder holds the sample at a surface and is rotatably arranged such that at least a portion of the sample can be transported through at least one of the sub-observation volumes by rotating the sample holder. The apparatus can be used in a high-throughput method of imaging.

Light tunnels, methods for forming a light tunnel, and apparatuses including light tunnels are disclosed herein. A light tunnel includes a plurality of reflectors cooperatively engaging with one another by a series of notches therein. The inner edges of the reflectors are chamfered to improve ease of assembly and decrease chipping of the edges during assembly. An adhesive can be applied at junctions between the reflectors on their outer surfaces. This construction eliminates or retards light leakage and adhesive leakage.

The present invention is a solar concentrator composed of a generally V-shaped trough of reflective Fresnel steps. The reflective Fresnel steps concentrate the sunlight entering the mouth of the V-shaped trough and parallel to its central axis into a central focal area. By disposing a solar energy receiving element at the central focal area of sunlight concentration, a concentrating solar energy collector is created. Various configurations of solar energy receiving elements are used to convert the concentrated sunlight into other forms of useful energy that can be harvested by the collector.

A component for a mobile computer device, such as a smartphone, can be secured to the housing of the mobile computer device. The component can deflect the light of a built-in light source of the mobile computer device with an optical element and optionally filter the same, or can provide its own light source to improve the option of measuring eccentric photorefraction using the mobile computer device.

A mirror includes a glass substrate, a pattern layer, a circuit board and a light source. The pattern layer is formed on the glass substrate. The pattern layer includes a plurality of polygonal patterns. Each of the polygonal patterns includes a plated region and a non-plated region. One of the plated region and the non-plated region surrounds another one of the plated region and the non-plated region. The circuit board is disposed corresponding to the pattern layer. The light source is disposed on the circuit board. A light emitted by the light source passes through the non-plated region to be projected out of the glass substrate.

The disclosure relates to a lighting device. The object to provide a lighting device comprising a light guide, wherein the amount of guided light is further optimized, is solved in that the lighting device comprises: a light-emitting element with a light-emitting face; the light guide having a light entry face, the light guide being configured to guide light emitted by the light-emitting element by means of total internal reflection; and a separator sheet comprising a first face and a second face, wherein the first face is arranged in direct contact to the light entry face, wherein the second face is arranged opposite the light-emitting face, wherein the separator sheet is arranged such that a minimum distance between the light-emitting face and the light entry face is 300 m or less, and wherein the separator sheet is arranged such that a gap is provided between the light-emitting element and the separator sheet at least in sections. The invention further relates to a method for production of such a lighting device and to an automotive head light comprising an inventive lighting device.