A luminous curtain device has a luminous curtain, a side member, and a luminous module. The side member is mounted on a side of the luminous curtain. The luminous module is mounted in the side member, and projects light on ends of optical fibers of the luminous curtain. The luminous curtain device is applied on sunlight-shading products for an automobile to shade sunlight. The luminous module can project light on the luminous curtain to make the luminous curtain luminous with a decorative effect.

An object recognition apparatus and method are disclosed. The object recognition apparatus includes an illuminable cable (C2), disposed on a target recognized object (C1) and used for highlighting the target recognized object (C1) to a striking state when a light source is guided into the illuminable cable (C2). By adopting a recognition method for the object recognition apparatus, the accuracy and recognition efficiency of recognition of physical connection in an optical fiber network system are improved.

The purpose of the present disclosure is to provide a small optical integrator for increasing color mixing property and homogeneity. An optical integrator is provided with a light entrance surface and exit surface (002, 003), and side surfaces (004, 005, 006, 007) that connect the entrance surface and the exit surface, and is internally filled with a light guide material having a refractive index. The light guide material contains scattering particles for scattering light that have a refractive index different from the refractive index of the light guide material. The light that has entered via the entrance surface propagates from the entrance surface side toward the exit surface while being scattered by the scattering particles in the light guide material, wherein part of the scattered light is guided to the exit surface by propagating while being confined, by internal reflection on the side surfaces, in the light detector.

An endoscope apparatus includes: an endoscope including an insertion portion with flexibility inserted into paranasal sinus of a subject and capable of emitting illuminating light from a distal end of the insertion portion toward the subject inside of the paranasal sinus; and an illumination mechanism configured to emit the illuminating light from the endoscope to the subject in a predetermined direction of an irradiation range of the illuminating light in a mode different from other directions.

Illumination articles are described. More specifically, illumination articles that include a wearable device configured for wearing on the head of a wearer, a lightguide and light sources for emitting light into the lightguide are described. The illumination articles allow for wearable devices that uniformly illuminate a working area at high brightness without providing excessive glare to observers.

Systems and methods for optical communication in a downhole tool are disclosed. An optical communication system includes a rotation-varying outer housing that is at least partially rotationally decoupled from an inner member. The inner member is at least partially disposed within the rotation-varying outer housing. The optical communication system also includes one or more transceiver modules, one or more transmitting bulbs rotationally coupled to one of the outer housing or the inner member, and one or more optical sensors rotationally coupled to one of the outer housing or the inner member. The transmitting bulbs are configured to transmit light over at least a portion of a cavity between the transmitting bulbs and the optical sensors, and the optical sensors are configured to receive light over at least a portion of a cavity between the transmitting bulbs and the optical sensors.

An illumination apparatus, which is to be connected to a light source apparatus that generates laser light and which is to be attached to an optical cable that guides the laser light, is provided. The illumination apparatus includes a light-emitting module which is to be attached to a tip portion of the optical cable. The light-emitting module receives the laser light emitted from the optical cable, converts the laser light into light having a different wavelength of a predetermined color, and emits the light. A heat dissipating lens case includes a lens and dissipates heat generated by the light-emitting module. The lens controls distribution of the light emitted by the light-emitting module. The heat dissipating lens case includes an attachment structure which allows the heat dissipating lens case to be removably attached to the light-emitting module.

A light guiding unit includes a light guiding member that light enters and an angle converter that the light from the light guiding member enters. The light guiding member has a side surface and a light exiting end surface which intersects the side surface and via which the light exits. The angle converter includes a light incident section on which the light from the light guiding member is incident, a light exiting section via which the light incident on the angle converter exits, and a reflection section that reflects the light incident via the light incident section toward the light exiting section. The refractive index of the interior of the angle converter is greater than the refractive index of air. The refractive index of the interior of the light guiding member is greater than the refractive index of the interior of the angle converter.

An optical coupling efficiency detection assembly includes a first housing accommodating a beam splitter and a fiber port, a second housing accommodating a ferrule enclosing a monitoring fiber, and an attachment block attaching the first housing to the second housing to establish a parfocal arrangement among the beam splitter, the fiber port, and the ferrule. Further, an assembly method for the optical coupling efficiency detection assembly is disclosed. The assembly method may include providing a beam splitter and a fiber port in a first housing, providing a ferrule enclosing a monitoring fiber in a second housing, and attaching the second housing to the first housing via an attachment block to establish a parfocal arrangement among the beam splitter, the fiber port, and the ferrule.

An electronic device may have a display with pixels configured to display an image. The pixels may be overlapped by a cover layer. The display may have peripheral edges with curved cross-sectional profiles. An inactive area in the display may be formed along a peripheral edge of the display or may be surrounded by the pixels. Electrical components such as optical components may be located in the inactive area. An image transport layer may be formed from a coherent fiber bundle or Anderson localization material. The image transport layer may overlap the pixels, may have an opening that overlaps portions of the inactive area, may have an output surface that overlap portions of the inactive area, and/or may convey light associated with optical components in the electronic device.