Abstract:
A light capturing sheet includes a light transmitting sheet and a plurality of optical coupling structures disposed therein. The optical coupling structures each include a first light-transmitting layer, a second light-transmitting layer, a third light-transmitting layer interposed therebetween, and a diffraction grating. Refractive indices of the first and second light-transmitting layers are lower than a refractive index of the light transmitting sheet, and a refractive index of the third light-transmitting layer is higher than the refractive indices of the first and second light-transmitting layers. The optical coupling structures are arranged in first and second directions in a plane parallel to principal surfaces of the light transmitting sheet, and in a third direction not parallel thereto.
Abstract:
To provide an optical sensor that can ensure accuracy of positions of a light projecting unit and a light receiving unit in a case. The optical sensor includes a case, an integrated light projecting module that includes a light emitting unit and a light projecting lens, a light receiving unit configured to receive reflected light of light projected from the light projecting module, and a light receiving lens unit configured to form an image of the reflected light on the light receiving unit. The light projecting module, the light receiving unit, and the light receiving lens unit are each independently and directly fixed to the case.
Abstract:
A phototherapy device for treating neonatal hyperbilirubinemia comprises a plurality of LEDs coupled to a support structure configured to absorb and dissipate heat generated by the LEDs without requiring a fan. The LEDs provide a uniform dose of radiation on a treatment surface of the subject over a distance range of 20 cm to 45 cm. The support structure can comprise a heat-conductive metal plate. The LEDs have an emission range of 400 nm to 520 and a light output intensity of at least 30 μW/cm2/nm and at most 65 μW/cm2/nm at the treatment surface. The device can be adjustably coupled to a mounting structure. Power supplied to the LEDs is adjustable based on the total number of hours of use of he LEDs, the intensity of the LED radiation, the distance between the LEDs and the treatment surface, and/or the tilt or orientation of the phototherapy device.
Abstract translation:用于治疗新生儿高胆红素血症的光疗装置包括耦合到支撑结构的多个LED,其配置成吸收和散发由LED产生的热而不需要风扇。 LED在20厘米至45厘米的距离范围内在受试者的治疗表面上提供均匀剂量的辐射。 支撑结构可以包括导热金属板。 LED在处理表面具有400nm至520的发射范围和至少30μW/ cm 2 / nm至多65μW/ cm 2 / nm的光输出强度。 该装置可以可调节地联接到安装结构。 根据LED的使用总时数,LED辐射的强度,LED和处理表面之间的距离和/或光疗装置的倾斜或取向,可以调节供应给LED的功率。
Abstract:
A method in an electronic device, the method includes projecting infrared (“IR”) light from a plurality of light emitting diodes (“LEDs”) disposed proximate to the perimeter of the electronic device, detecting, by a sensor, IR light originating from at least two of the plurality of LEDs reflected from off of a person, and carrying out a function based on the relative strength of the detected IR light from the LEDs.
Abstract:
A sensor module for a lighting fixture includes a light sensor and a sensor cover over the light sensor. The sensor cover includes a front surface and a light focusing surface opposite the front surface. The front surface is configured to face an area of interest that is generally illuminated by the lighting fixture. The light focusing surface is opposite the front surface and includes a number of lens sections, each of which is configured to focus light from a different portion of the area of interest toward the light sensor. By including a number of lens sections each focusing light from a different portion of the area of interest, a relatively large area of interest can be observed while maintaining desirable aesthetics of the sensor module.
Abstract:
A light sensor device comprises a substrate (10) having a well (12) defined in one surface. At least one light sensor (14) is formed at the base of the well (12), and an optical light guide (18) in the form of a transparent tunnel (18) within an opaque body (20) extends from a top surface of the device down a sloped side wall of the well (12) to the location of the light sensor (14).
Abstract:
An antenna system comprises a first end-fire antenna element and a second end-fire antenna element facing each other in a planar arrangement, the antenna elements being configured such as to cause destructive interference between individual end-fire radiations of the elements, while maintaining constructive interference generally perpendicular to the planar arrangement.
Abstract:
A photodetection device has a light passing part in an upper portion, a light guiding member, and a photodetection element in a lower portion. Light passing through the light passing part is guided by the light guiding member to be detected by the photodetection element. The light guiding member has an incident curved surface provided annularly around a central axis on a side of the light passing part, and a reflective curved surface provided around the central axis inside the incident curved surface so as to be opposed to the incident curved surface. The light guiding member reflects light at the reflective curved surface to guide the light to a light receiving surface of the photodetection element, the light passing through the light passing part and entering the incident curved surface at a predetermined inclination angle.
Abstract:
A measurement wafer device for measuring radiation intensity and temperature includes a wafer assembly including one or more cavities. The measurement wafer device further includes a detector assembly. The detector assembly is disposed within the one or more cavities of the wafer assembly. The detector assembly includes one or more light sensors. The detector assembly is further configured to perform a direct or indirect measurement of the intensity of ultraviolet light incident on a surface of the wafer assembly. The detector assembly is further configured to determine a temperature of one or more portions of the wafer assembly based on one or more characteristics of the one or more light sensors.
Abstract:
A fastening structure of a brittle-fracturable panel material includes a first fastening flange, a second fastening flange, and a light transmission window panel made of a brittle-fracturable panel material, wherein the light transmission window panel is nipped between the first fastening flange and the second fastening flange, and both fastening flanges are air-tightly fitted and fastened.