An apparatus for sterilizing an interior of a vehicle using a drone, may include a drone body of the drone and including a conformation sensor; one or more propellers coupled to the drone body; a UV unit coupled to the drone body and configured to radiate UV light; a sterilizer spray unit mounted to the drone body and configured to spray a sterilizer through the propeller; and a controller electrically connected to the UV unit or the sterilizer and configured to set a flight route in a vehicle, determine an infected region in the set flight route, and operate the UV unit or the sterilizer unit in correspondence to the infected region.

There is set forth herein a device comprising structure defining a detector surface configured for supporting biological or chemical substances, and a sensor array comprising light sensors and circuitry to transmit data signals using photons detected by the light sensors. The device can include one or more features for reducing fluorescence range noise in a detection band of the sensor array.

A display device for a mobile vehicle comprises at least one light emitting part, an emission angle adjustment part, and a light control film part. The emission angle adjustment part is configured to transmit light from the at least one light emitting part therethrough while adjusting an emission angle of the light from the at least one light emitting part. The light control film part is configured to switch between a transmitting state to transmit light from the emission angle adjustment part therethrough and a diffusing state to diffuse the light from the emission angle adjustment part. The emission angle adjustment part has at least one louver portion that is made of reflective material and is configured to adjust the emission angle of the light from the at least one light emitting part.

The invention provides a lighting system (100) comprising: —a plurality of n light sources (10), wherein each of the n light sources (10) is configured to generate light source light (11); —a plurality of n first beam shaping elements (20), wherein each of the n first beam shaping elements (20) is configured downstream of a respective light source (10); —k arrays (300) of optical elements (310), wherein each of the k arrays (300) comprises nk optical elements (310), wherein each of the nk optical elements (310) is configured downstream of a respective first beam shaping element (20) from a subset (250) of the n first beam shaping elements (20); wherein the optical elements (310) are configured to influence one or more of (i) a beam direction of the light source light (11), (ii) a beam shape of the light source light (11), (iii) a spectral distribution of the light source light (11), and (iv) an intensity of the light source light (11); and wherein n≥2, k≥1, and 1≤n.sub.k≤n.

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.

Methods for imaging a sample using fluorescence microscopy, systems for imaging a sample using fluorescence microscopy, and illumination systems for fluorescence microscopes. In some examples, a method includes positioning the sample such that a plane of interest of the sample is coplanar with a focal plane of a detection objective of a microscope. The method includes positioning a paraboloidal mirror around the sample such that a focal point of the paraboloidal mirror is coplanar with the focal plane of the detection objective and the plane of interest of the sample. The method includes directing a beam of annularly collimated excitation light on the paraboloidal mirror to focus a disc of light on the sample and thereby to provide 360 degree lateral illumination of the sample. The method includes imaging the sample through the detection objective.

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 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.

A projection screen and a projection system. The projection screen includes a reflection layer and a light absorption layer for absorbing light which are sequentially arranged from an incident side of projection light; the reflection layer comprises multiple microstructure units; each microstructure unit comprises a first plane and a second plane which are opposite to each other at an angle in a first direction as well as a third plane and a fourth plane which are opposite to each other at an angle in a second direction.

A light generating system (1000) comprising a plurality of light sources (10) configured to provide light source light (11), an elongated luminescent body (100) having a first face (141) and a second face (142) defining a length (L) of the elongated luminescent body (100), the elongated luminescent body comprising one or more side faces (140), the elongated luminescent body (100) comprising a radiation input face (111) and the second face (142) comprising a first radiation exit window (112), wherein the radiation input face (111) is configured in a light receiving relationship with the plurality of light sources (10), wherein the elongated luminescent body (100) comprises luminescent material (120) configured to convert at least part of the light source light (11) into luminescent material light (8), and a beam shaping optical element (224).