Provided is a wavelength conversion member that can improve the color balance of emitted light. A wavelength conversion member 1 includes a phosphor 2 encapsulated within a glass tube 10, wherein the glass tube 10 includes: a first flat-plate portion 11 and a second flat-plate portion 12 opposed to each other in a first direction (z direction) perpendicular to a longitudinal direction (y direction) of the glass tube 10; and a third flat-plate portion 13 and a fourth flat-plate portion 14 opposed to each other in a second direction (x direction) perpendicular to both the longitudinal direction (y direction) of the glass tube 10 and the first direction (z direction), the first flat-plate portion 11 is located on a light incident side of the glass tube 10 through which excitation light 3 for exciting the phosphor 2 enters the glass tube 10, the second flat-plate portion 12 is located on a light exit side of the glass tube 10 through which fluorescence 4 from the phosphor 2 is emitted from the glass tube 10, at least one of a first corner 21 connecting between the first flat-plate portion 11 and the third flat-plate portion 13 and a second corner 22 connecting between the first flat-plate portion 11 and the fourth flat-plate portion 14 is chamfered.

A device for indicating lock status of a motor vehicle door includes a door lock status indicator carried on a window of the motor vehicle door. A device for indicating a turn signal of a motor vehicle includes a turn signal indicator carried on a window of the motor vehicle. These devices may be combined into a single lighting module.

A light emitting device includes a laser light, a wavelength conversion member, a base member and a lid. The wavelength conversion member includes a plurality of projected portions each extending along a first direction on an upper surface side thereof and arranged side by side in a second direction. Each of the plurality of projected portions has a first surface extending along the first direction. The first surface is inclined with respect to a reference surface. The laser light source and the wavelength conversion member are arranged so that an optical axis of first light from the laser light source extends along the second direction when viewed from above and is inclined with respect to the reference surface, and light directly incident to the first surface along a direction parallel to the optical axis of the first light is regularly reflected toward an upward direction.

A light source unit according to an aspect of the invention includes a first semiconductor light emitting device disposed centrally and a second semiconductor light emitting device disposed outwards of the first semiconductor light emitting device, the first and second semiconductor light emitting devices emitting lights, and a first collimator lens disposed centrally and a second collimator lens disposed outwards of the first collimator lens, the first and second collimator lenses being disposed so as to correspond to the first and second semiconductor light emitting devices, respectively, on sides of the first and second semiconductor light emitting devices from which the lights are emitted, and a degree at which the light of the first semiconductor light emitting device is collected onto an illuminated surface differs from a degree at which the light of the second semiconductor light emitting device is collected onto the illuminated surface.

A device for multi-photon fluorescence microscopy for obtaining information from biological tissue has a laser unit for generating an excitation radiation, an optical unit implemented for focusing the excitation radiation for generating an optical signal at various locations in or on an object to be investigated, and a detector module for capturing the optical signal from the region of the object. The optical unit is thereby displaceable at least in one direction relative to the object for generating the optical signal at various locations in or on the object. The invention further relates to a method for multi-photon fluorescence microscopy. In said manner, a device and a method for multi-photon fluorescence microscopy are provided for obtaining information from biological tissue, allowing recording of section images in an object with a large field of view, and thereby are simply constructed and reliable in operation.

A kit (10) for emitting light on a nail of a user, comprises: a light emitting diode (14) emitting light at a wavelength, a waveguide (26) coupled to the light emitting diode (14), and a fixing element for fixing the waveguide (26) on the nail of the user.

The kit (10) comprises at least one fluorescent coating (30) intended to be applied on the waveguide (26), the waveguide (26) being configured to transmit the light emitted by the light emitting diode (14) to the fluorescent coating (30), the fluorescent coating (30) being excited at the wavelength of the light emitting diode (14).

A lighting device includes a light source and a photoconversion layer including a perovskite compound represented by Formula 1. The perovskite compound absorbs at least part of light emitted from the light source and emits light having a different wavelength range from the absorbed light:

[A][B][X].sub.3  <Formula 1>

In Formula 1, A is at least one monovalent organic cation, at least one a monovalent inorganic cation, or any combination thereof, B is at least one divalent inorganic cation, and X is at least one monovalent anion.

A wireless vehicle charging system is provided herein. The charging system includes a charging station having a power source and a charging station interface operably coupled to a primary coil assembly. The primary coil assembly includes a primary coil therein for generating a magnetic field. An illumination system is disposed within the primary coil assembly and includes a passive illumination system and an active illumination system. A first photoluminescent structure is disposed within the passive illumination system and is configured to luminesce in response to excitation by an incident light. A vehicle has a secondary coil assembly thereon operably coupled with a rectifier and configured to transmit electrical current from the secondary coil assembly to a battery. A second photoluminescent structure is disposed on a vehicle component and is configured to luminesce in response to excitation by a light source on the primary coil assembly.

A light-emitting diode (LED) string includes an electrically conductive wire and a plurality of LEDs. The LEDs are electrically connected to the wire in series along an axial length of the wire. The LED string may include a solder layer, with the LEDs electrically connected to the wire via the solder layer. A tube having an optional phosphor coating may circumscribe the wire and LEDs. When connected to a surface, the LED string emits light in a band of at least 180 degrees with respect to the surface. A light assembly includes a first surface and a first LED string configured as set forth above. The light assembly may include a second LED string positioned with respect to the surface and having additional LEDs configured to illuminate in response to a second control signal from the controller.

A display panel is disclosed, which includes: a substrate; plural scan lines disposed on the substrate and extending along a first direction; a first insulating layer disposed on the scan lines; plural data lines disposed on the first insulating layer and extending along a second direction; a second insulating layer disposed on the data lines; and a common electrode disposed on the second insulating layer and including a through hole; wherein, the through hole includes a first region and a second region, the first region has a first maximum width along the first direction, the second region has a second maximum width along the first direction, and a ratio of the second maximum width over the first maximum width is greater than 0 and less than 1.