A sensor module for a lighting fixture includes a housing configured to be mounted to a lighting fixture, a light sensor mounted in the housing, and a sensor cover over the light sensor. The sensor cover includes a parallel surface and an angled surface. The parallel surface is parallel to a task surface within an area of interest, and includes a first number of lens sections, each of which are configured to focus light from a different portion of a first subset of the task surface to the light sensor. The angled surface includes a second number of lens sections, each of which extend from an edge of the parallel surface to form a facet of the angled surface and are configured to focus light from a different portion of a second subset of the task surface to the light sensor.

A camera module includes a camera, a light emitting unit, a circuit board. The camera is mounted on the circuit board and having an optical axis. The light emitting unit is disposed on the circuit board which emits a light beam forming a batwing-shaped luminous intensity distribution. The batwing-shaped luminous intensity distribution has at least two peaks of maximum luminous intensity. The optical axis of the camera is arranged at a position between the at least two peaks of the batwing-shaped luminous intensity distribution. The camera module emits a uniform light for enhancing authenticity of the image and increasing the reliability of the recognition system.

A camera module includes a camera, a light emitting unit, a circuit board. The camera is mounted on the circuit board and having an optical axis. The light emitting unit is disposed on the circuit board which emits a light beam forming a batwing-shaped luminous intensity distribution. The batwing-shaped luminous intensity distribution has at least two peaks of maximum luminous intensity. The optical axis of the camera is arranged at a position between the at least two peaks of the batwing-shaped luminous intensity distribution. The camera module emits a uniform light for enhancing authenticity of the image and increasing the reliability of the recognition system.

A time-of-flight 3D imaging system includes a time-of-flight measurement device, an illuminator, and an imaging sensor. The illuminator and the imaging sensor have adjustable optics to vary the field of illumination of the illuminator and the field of view of the imaging sensor.

A stereoscopic 3D imaging system includes multiple imaging sensors with adjustable optics. The adjustable optics are variable to alter the FOV of each of the multiple imaging sensors to improve angular resolution of the imaging system.

Systems and methods for optical narrowcasting are provided for transmitting various types of content. Optical narrowcasting content indicative of the presence of additional information along with identifying information may be transmitted. The additional information (which may include meaningful amounts of advertising information, media, or any other content) may also be transmitted as optical narrowcasting content. Elements of an optical narrowcasting system may include optical transmitters and optical receivers which can be configured to be operative at distances ranging from, e.g., 400 meters to 1200 meters. Moreover, the elements can be implemented on a miniaturized scale in conjunction with small, user devices such as smartphones, thereby also realizing optical ad-hoc networking, as well as interoperability with other types of data networks. Optically narrowcast content can be used to augment a real-world experience, enhance and/or spawn new forms of social-media and media content.

An optically powered system for rapid, focused heating and melting of water ice. The optical wavelength is chosen to fall in a range where transmissivity through liquid water is higher than through ice. An alternative embodiment of the invention further comprises a length of fiber optic tether between source and output to allow for motion of the melt head. A further embodiment includes probing the ice using various sensing modalities exploiting the presence of the fiber in the ice, searching for biomarkers and characterizing the radiation/light environment for subsurface habitability, including photosynthetic potential and radiation environment as a source for energy.

Example embodiments include a lens having an IR-reflective coating that is selectively applied to form a variable infrared (IR) interaction pattern on the lens. The variable IR interaction pattern may vary in the manner it interacts with IR wavelengths, so as to provide a machine-readable code when the lens is illuminated by IR light. Accordingly, variable IR interaction patterns may be used to identify particular lenses. Accordingly, a glasses-style, modular, head-mountable device (HMD) may identify which of a number of different possible lenses are currently attached to the HIVID, and update certain processes according to the lens or lenses is or are attached. For example, an HIVID may calibrate an eye-tracking process according to the particular lens that is attached.

Methods, devices and systems that allow three-dimensional printing of material with high resolution are described. One example system includes a two-photon polymerization (TPP) subsystem including a first light source coupled to an optical fiber positioned to deliver a first laser light to a scanning optical device, and an optical projection subsystem comprising a second light source configured to provide a second light to a digital projection device. A dichroic mirror is positioned to receive light corresponding to the first and the second light source, and an objective lens positioned to provide illumination to a target material for 3D printing. The dichroic mirror is configured to allow light from one of the light sources to pass therethrough to the objective lens, and to allow light corresponding to the other light source to be reflected towards the objective lens to enable simultaneous illumination of the target material.

A device for converting electromagnetic radiation into electricity comprises an expander that includes a conical shape having an axis and a curved surface that is configured to reflect electromagnetic radiation away from the axis to expand a beam of the electromagnetic radiation; and one or more energy conversion components configured to receive a beam of electromagnetic radiation expanded by the expander, and to generate electricity from the expanded beam of electromagnetic radiation. With the expander's curved surface, a beam of electromagnetic radiation that is highly concentratedhas a large radiation fluxmay be converted into a beam that has a larger cross-sectional area. Moreover, one can configure, if desired, the curved surface to provide a substantially uniform distribution of radiation across the expanded cross-sectional area. With such an expanded beam the one or more energy conversion components can efficiently convert some of the electromagnetic radiation into electricity.