An optical arrangement for disinfection in apparatuses operating with air or a liquid comprises at least one radiation source or at least one group of radiation sources, which emits or jointly emit radiation in the ultraviolet wavelength range, at least one beam collecting optical unit, which collects the radiation emitted by the radiation source or the group of radiation sources, a number of beam delivering optical units, each configured to receive the radiation collected by the at least one beam collecting optical unit, and also a number of effect zones spatially separated from one another, into which the radiation delivered via the beam delivering optical units is emitted in order to bring about a disinfecting effect.

A light transmission element for an optical unit for transmitting and, in the process, adapting the angle of transmitted light, including a sequence of a multitude of optical elements situated in the form of a layer, in which the layer forms a first side and a second side, which face away from one another, a respective optical element including a pair of subelements, which each extend from a geometrically essentially identical base in a tapering manner and which face one another with their bases and extend with different lengths along their taper, and the optical elements being aligned in such a way that subelements having a greater length face the first side and subelements having a lesser length face the second side.

A collimator includes: a transmission pattern transmitting light; and a non-transmission layer disposed on at least one side surface of the transmission pattern. The non-transmission layer includes a low reflective metal material.

Embodiments of the disclosure provide an optical sensing device for a receiver in an optical sensing system. The optical sensing device includes a light concentrator configured to collect a light beam. The light concentrator includes an input aperture configured to collect the light beam, an output aperture configured to output the light beam, and a side surface in contact with the input aperture and the output aperture. The side surface is configured to reflect the collected light beam towards the output aperture. The optical sensing device also includes a photodetector placed behind the light concentrator. The photodetector is configured to receive the light beam collected through the output aperture and convert the light beam to an electrical current.

A first light guide guides first light in a first light guiding path. The first light is of light irradiated from the light source to a sheet. A first detection unit receives reflected light from the sheet and outputs an image signal indicating an image of a surface of the sheet. A second light guide guides second light in a second light guiding path different from the first light guiding path. The second light is of the light irradiated from the light source and is different from the first light. A second detection unit receives the second light and output a detection signal corresponding to a light amount of the second light. A control unit controls a light emission amount of the light source based on the detection signal.

An amplified laser device is provided with one or more Micro-Electro-Mechanical System (MEMS) Micro-Mirror Arrays (MMAs) having tip, tilt and piston capability positioned on either side of the optical amplifier to correct the profile of the beam to improve the gain performance of the optical amplifier or to compensate for atmospheric distortion while steering the amplified beam over a FOR. The MEMS MMAs may be positioned in front of, behind or on both sides of the amplifier. The MEMS MMAs can be configured to optimize the combined amplifier performance, static and time varying, and compensation for atmospheric distortion together or separately.

An EUV collector has a reflection surface with a basic mirror shape of a spherical section. A diffraction grating for EUV used light is applied to the reflection surface. The diffraction grating is designed so that the EUV used light, which emanates from a sphere center of the spherical section, is diffracted by the diffraction grating toward a collection region. The collection region is spatially spaced apart from the sphere center. This creates an EUV collector in which an effective separation between EUV used light, which is to be collected with the aid of the collector, and extraneous light having a wavelength that differs from a used light wavelength is made possible.

A protective transparent enclosure, such as a greenhouse, encloses a concentrated solar power system having line-focus solar energy concentrators. The line-focus solar energy concentrators have a reflective front layer, a core layer, and a rear layer. The core and the rear layers, when bonded with the reflective front layer, enable the line-focus solar energy concentrator, in some embodiments, to retain a particular form without additional strengthening elements. In some embodiments, the core layer and/or the rear layer are formed by removing material from a single piece of material.

An analysis and observation device includes: an electromagnetic wave emitter that emits a primary electromagnetic wave; a reflective object lens having a primary mirror provided with a primary reflection surface reflecting a secondary electromagnetic wave and a secondary mirror provided with a secondary reflection surface receiving and further reflecting the secondary electromagnetic wave; first and second detectors that receive the secondary electromagnetic wave and generate an intensity distribution spectrum; and a controller that performs component analysis of a sample based on the intensity distribution spectrum. A transmissive region through which the primary electromagnetic wave is transmitted is provided at a center of the secondary mirror. The transmissive region transmits the primary electromagnetic wave, which has been emitted from the electromagnetic wave emitter and passed through an opening of the primary mirror, thereby emitting the primary electromagnetic wave along an analysis optical axis of the reflective object lens.

A head-up display for a transport comprising an image generating unit for generating an image, and an optical unit for projecting the image through a mirror unit is disclosed. The imaging unit comprises a folding mirror arranged between a light source and a display element. The light source radiates light, at a work angle to the propagation direction of the light incident on the folding mirror. The folding mirror has microstructures that have first mirror surfaces arranged at a first angle that deviates from the work angle of the folding mirror, and are spaced apart from one another to form gaps, wherein second surfaces are arranged in the gaps at a second angle. A polarizer guides light having a first polarization to the display element and light having a second polarization into the gaps. A retarder converts the polarization of the light guided into the gaps to the first polarization.