Abstract:
The present disclosure relates to a reflective optical sensor module, an optical sensing accessory and an optical sensing device. A reflective optical sensor module comprises a light source (110) and a first encapsulant (111) formed over the light source (110), a photodetector (120) and a second encapsulant (121) formed over the photodetector (120), and a substrate (140). At least a part of a partition (130) is spaced apart from at least one of the encapsulants (111,121). The light source (110) is configured to convert electric power into radiant energy and to emit light to an object surface. The photodetector (120) is configured to receive the light from an object surface and to convert radiant energy into electrical current or voltage. At least one of the encapsulants has a microstructure (112, 122) for enhancing the signal strength. The optical sensing accessory and the optical sensing device comprise the reflective optical sensor module and other electronic modules to have further applications.
Abstract:
The present disclosure relates to a reflective optical sensor module, an optical sensing accessory, and an optical sensing device. A reflective optical sensor module comprises a light source (110) and a first encapsulant (111), a photodetector (120) and a second encapsulant (121), an electrode (170) and a substrate (140). The light source (110) is configured to convert electric power into radiant energy and to emit light to an object surface. The photodetector (120) is configured to receive the light from an object surface and to convert radiant energy into electrical current or voltage. The electrode (170) is configured to detect an external circuit formed by the contact with an object surface. The optical sensing accessory and the optical sensing device comprise the reflective optical sensor module and other electronic modules to have further applications.
Abstract:
An integrated quantum random noise source includes a substrate, an optical oscillator that may be integral to the substrate coupled by an optical waveguide to an optical directional coupler. The optical directional coupler has two outputs that are coupled by optical waveguides to a pair of photodetectors that are part of a balanced photodetector. The balanced photodetector in response outputs an analogue signal proportional to the difference in photocurrents of the two photodetectors. The analogue output signal from the balanced photodetector is a random Gaussian-distributed signal representative of quadrature measurements on the quantum vacuum state of light. The random noise source can be coupled other apparatus to provide a source of random bits.
Abstract:
The present disclosure relates to a bi-directional reflective optical sensor module, an optical sensing accessory, and an optical sensing device. A bi-directional reflective optical sensor module (5) comprises a light source (110) and a first encapsulant (111), two photodetectors (120) and two second encapsulants (121), and a substrate (140). The bi-directional module emits light and detects light from two directions so that the light can be detected from different parts of a body. The optical sensing accessory and the optical sensing device comprise the bi-directional reflective optical sensor module and other electronic modules to have further applications.
Abstract:
The present disclosure relates to an optical sensing accessory, an optical sensing device, and an optical sensing system. An optical sensing accessory, an optical sensing device, or an optical sensing system comprises a plurality of reflective optical sensor modules (109) and other electronic modules to achieve multi-site measurement. A reflective optical sensor module comprises a light source, a photodetector, and a substrate. The light source is configured to convert electric power into radiant energy and emit light to an object surface. The photodetector is configured to receive the light from an object surface and convert radiant energy into electrical current or voltage. Multi-site sensing devices (16) improve measurement accuracy and user compliance to record their physiological condition.
Abstract:
The present disclosure relates to a reflective optical sensor module, an optical sensing accessory, and an optical sensing device. A reflective optical sensor module comprises a light source (110) and a first encapsulant (111), a photodetector (120) and a second encapsulant (121), and a substrate (140). The light source (110) is configured to convert electric power into radiant energy and to emit light to an object surface. The photodetector (120) is configured to receive the light from an object surface and to convert radiant energy into electrical current or voltage. A partition (130) is located between the light source(110) and the photodetector (120). At least one of the encapsulants (111, 121) has multiple refractive index layers wherein the refractive index of adjacent layers gradually mediates a refractive index difference towards the environmental medium. The optical sensing accessory and the optical sensing device comprise the reflective optical sensor module and other electronic modules to have further applications.
Abstract:
The present invention relates to a nanophotonic device (112), comprising a transparent substrate (114), wherein at least four grating couplers (120) for receiving incident light are located on the substrate (114), wherein each of at least two of the grating couplers (120) are optically coupled to a superconducting stripe (124) of a superconducting single-photon detector (126), while each of at least two of the other grating couplers (120) constitute an optical reference port (142), wherein an optical coupling (144) is provided between at least two optical reference ports (142). The present invention further relates to a single-photon camera which comprises a housing (168), wherein the housing (168) comprises a single-photon detector chip (162) with at least one nanophotonic device (112), a method for manufacturing the nanophotonic device (112), and a method for aligning an optical fiber array (138) to the nanophotonic device (112).