A laser beam monitoring system configured to monitor an attribute of an incident laser beam (24), the laser beam monitoring system comprising a beam separating element (30) and a plurality of sensors (34a-34d), wherein the beam separating element is configured to form a plurality of sub-beams (24a-24d) from the incident laser beam (24), a first sub-beam being directed towards a first sensor of the plurality of sensors and a second sub-beam being directed towards a second sensor of the plurality of sensors, wherein relative intensities of the first and second sub-beams are determined by a spatial position at which the incident laser beam is incident upon the beam separating element.

An optical module includes: a casing; a printed circuit board (PCB) connected to a first side wall of the casing and configured to provide first electrical signals to an optical transmitter assembly; the optical transmitter assembly arranged in the casing and configured to convert the first electrical signals into first optical signals; an optical receiver adapter and an optical transmitter adapter arranged outside the casing and connected to a second side wall of the casing, wherein the optical transmitter adapter is configured to receive second optical signals; a first displacement prism arranged in the casing and configured to direct the second optical signals toward an optical receiver assembly; and the optical receiver assembly configured to convert the second optical signals into second electrical signals. At least one component of the optical receiver assembly is arranged in the casing.

An infrared scene generator can generate a second infrared scene representative of a first infrared scene by emitting a beam of electromagnetic radiation onto a plurality of prism-coupled electrically conductive elements that modulate a portion of the beam incident thereon with surface plasmon polaritons based on parameters of the first infrared scene to yield a modulated beam that produces the second infrared scene.

A device for imaging light, or a source of the light, includes a window for receiving incident light from the source, at least one metasurface, and at least one wedge prism. The metasurface and the wedge prism form a Risley pair and are displaced independently of each other. Each of the metasurface and the wedge prism are operative to deflect the incident light at an angle that is different from an angle of light incident upon them. Each metasurface includes a plurality of sub-wavelength structures that are operative to interact with the incident light received from the window. The device also includes a lens system that is operative to transmit the incident light received from the at least one metasurface and the at least one wedge prism and focuses it on a focal plane.

Light detection systems for measuring light (e.g., in a flow stream) are described. Light detection systems according to embodiments include a light scatter detector, a brightfield photodetector and an optical adjustment component configured to convey light to the light scatter detector and to the brightfield photodetector. Systems and methods for measuring light emitted by a sample (e.g., in a flow stream) and kits having a light scatter detector, a brightfield photodetector and a beam splitter component are also provided.

An optical sensing module including a lens and a sensing device is provided. The lens has an optical axis. The sensing device is disposed under the lens, wherein the sensing device is to receive an object beam passing the lens. The optical axis of the lens deviates from a geometric center of the sensing device. An optical sensing module including a prism film, a sensing device and a lens is further provided. The prism film has a plurality of prisms. The sensing device is disposed under the prism film, wherein the sensing device is to receive an object beam sequentially passing the prism film and the lens. The lens is disposed between the prism film and the sensing device.

A wearable device for measuring the light conditions of a subject includes a light sensor for measuring said light conditions, and a light guide for collecting incoming light and directing it to said light sensor. A software application is also provided executable on a remote device and configured for receiving data from the wearable device via a receiver on the remote device, processing the data by means of the remote device to provide data representing the light exposure of the subject wearing the wearable device, and displaying at least a part of the data on a screen of the remote device.

An electronic device is disclosed herein, including: a substrate, an optical sensor device including at least one light-emitting element and a light-receiving element, the optical sensor device mounted on the substrate, and an injection-molded lens coupled to the substrate and covering the optical sensor device, wherein the injection-molded lens is spaced apart from the optical sensor device by a set distance, wherein patterns are integrally formed in at least a portion of the injection-molded lens, the patterns affecting transmission of light of at least one wavelength band to improve an optical efficiency of the transmitted light.

An electromagnetic wave detection apparatus 10 includes a first propagation unit 16, a second propagation unit 17, a first detector 19, and a second detector 20. The first propagation unit 16 propagates electromagnetic waves incident on a reference surface ss in a particular direction using each pixel px. The second propagation unit 17 includes a first surface s1, a second surface s2, a third surface s3, a fourth surface s4, a fifth surface s5, and a sixth surface s6. The first surface s1 propagates electromagnetic waves incident from a first direction in a second direction and propagates electromagnetic propagated in a third direction in a fourth direction. The second surface s2 separates electromagnetic waves propagated in the second direction d2 and propagate electromagnetic waves in a third direction d3 and a fifth direction d5. The first detector 19 detects electromagnetic waves emitted from the third surface s3. The second detector 20 detects electromagnetic waves emitted from the sixth surface s6.

Provided are a refractive index measuring device and a refractive index measuring method. A detector (2) detects an intensity of a measuring beam transmitted through the sample. A camera (200) images a color image of the measuring beam which is dispersed into multiple colors by transmitting through the sample. A scanning processing portion (101) carries out scanning by changing an angle of receiving the measuring beam transmitted through the sample or an angle of the measuring beam incident on the sample. A wavelength specifying processing portion (102) specifies, based on the detected intensity of the detector (2) varying with the scanning by the scanning processing portion (101) and color information corresponding to a position of the measuring beam incident on the detector (2) in a color image which is imaged by the camera (200), the wavelength corresponding to each peak of the detected intensity.