An example imaging apparatus that can operate at shortwave infrared (SWIR) wavelengths are provided. An example imaging apparatus may include a fiber optic bundle, a distal lens, an illumination assembly, and an imaging detector. The fiber optic bundle may comprise a plurality of fibers and may be configured to guide light energy at a SWIR wavelength. The distal lens may be disposed on a distal end of the fiber optic bundle and the distal lens configured to focus light energy at the SWIR wavelength. The illumination assembly may be configured to output illumination at the SWIR wavelength adjacent to the distal end of the fiber optic bundle toward an object. The imaging detector may be operably coupled to a proximal end of the fiber optic bundle and configured to receive imaging light energy at the SWIR wavelength reflected from the object and guided through the fiber optic bundle.

The invention provides a lighting device (1) comprising: —one or more light sources (10) configured to provide light source light (11); —a luminescent element (5) comprising an elongated luminescent body (100) having a radiation input face (111) for receipt of the light source light (11), the luminescent element (5) comprising a first luminescent material (120) for conversion of at least part of the light source light (11) into luminescent material light (8); —a light guide element (850), configured downstream of the first luminescent material (120), and configured to light guide at least part of the first luminescent material light (8); —a second luminescent material (1120), configured downstream of the first 10 luminescent material (120), at a first distance (d1) of at least 0.5 mm thereof, configured to convert one or more of (i) at least part of the light source light (11) and (ii) at least part of the first luminescent material light (8) into second luminescent material light (1128) having a spectral power distribution differing from a spectral power distribution of the first luminescent material light (8); 15—a light transmissive optical element (24) configured downstream of the light guide element (850), configured to receive at least part of the first luminescent material light (8) of the light guide element (850) and to receive at least part of the second luminescent material light (1128), and configured to transmit the received luminescent material light (8) and the received second luminescent material light (1128), and configured to beam shape at least part of the received luminescent material light (8), and to provide lighting device light (101) comprising one or more of the light source light (11), the first luminescent material light (8) and the second luminescent material light (1128).

A kit includes a deterrent device, a grip activation system, and a housing supporting the grip activation system. The housing positions the grip activation system so that a sensing space of the grip activation system extends at least partly adjacent to a trigger guard of the deterrent device. The grip activation system includes an emitter configured to emit first electromagnetic radiation having a first wavelength; a detector configured to detect second electromagnetic radiation having the first wavelength; and a controller. The controller determines, based at least in part on the second electromagnetic radiation, that an object is present in the sensing space; and provides an activation signal to an activatable system in response to determining that the object is present in the sensing space. The activatable system can include a light source. Some examples include a housing, a grip activation system, and an activatable system.

An optical fiber for transmitting a light beam by a light source including a proximal portion configured to receive the light beam from the light source, the proximal portion having a first numerical aperture, a distal portion configured to emit the light beam to illuminate a surgical field, the distal portion having a second numerical aperture, and a central portion extending between the proximal portion and the distal portion, the central portion having a third numerical aperture. The optical fiber is configured to receive the light beam at the proximal portion at the first numerical aperture and output the light beam from the distal portion at the second numerical aperture, wherein the second numerical aperture is greater than the first numerical aperture.

A quantitative phase microscopy (QPM) system and methods are provided for sample imaging and metrology in both transmissive and reflective modes. The QPM system includes a first illuminating beam propagating along a transmission-mode path and a second illuminating beam propagating along a reflection-mode path, a microscope objective lens disposed in the reflection-mode path, and a common-path interferometer comprising a diffraction grating, a Fourier lens, a pinhole, and a 2f system lens to collimate the reference beam and the imaging beam such that the collimated reference beam and imaging beam interfere with each other to form an interferogram at a final image plane.

A process of making a diverging-light fiber optics illumination delivery system includes providing a micro-post comprising a glass-ceramic light-scattering element that includes at least one of a ceramic, a glass ceramic, an immiscible glass, a porous glass, opal glass, amorphous glass, an aerated glass, and a nanostructured glass; and fusion-splicing the glass-ceramic micro-post to the optical fiber by pulling an arc between electrodes across a gap formed by the optical fiber and the glass-ceramic micro-post; maintaining the arc for a time sufficiently long to make facing surfaces of the optical fiber and the micro-post one of malleable and molten; and pushing and thereby fusing together the facing surfaces of the optical fiber and the micro-post. Some embodiments can include fusing the glass-ceramic micro-post to the optical fiber by applying a laser beam to heat up at least one of the facing surfaces of the optical fiber and the glass-ceramic micro-post.

A system is provided for treating a skin surface of a user, comprising: at least one light emitting source configured to focus light on a specified skin region of the user, the light being configured to treat a skin condition of the user; and a controller configured to control emission of the light onto the specified skin region of the user.

Systems, methods, and apparatuses for emitting light from a header reel are disclosed. More particularly, systems, methods, and apparatuses for emitting light at one or more locations along a bat tube of a header reel are disclosed. In some instances, a light source may be provided on the bat tube between adjacent reel fingers coupled to the bat tube. In some instances, the light source may be provided at an aperture formed in the bat tube. The emitted light provides for illumination and operator visualization during, for example, agricultural operations performed at night or during low ambient light conditions.

The disclosure relates to diagnostic, surgical, and/or therapeutic devices for being introduced into the human or animal body or for in vitro examination of human or animal blood samples or other body cells, in particular to an endoscope or a disposable endoscope that includes at least one illumination light guide and/or image guide for transmitting electromagnetic radiation, the illumination light guide or image guide having a proximal end face for incoupling or outcoupling of electromagnetic radiation and a distal end face for incoupling or outcoupling of electromagnetic radiation. The proximal and/or distal end faces consist of plastic elements that are transparent at least partially or in sections thereof, the transparent plastic being biocompatible and/or having non-toxic properties to human or animal cell cultures for exposure durations of less than one day. This allows for the production of assemblies for disposable endoscopes, inter alia.

Disclosed is an optical fiber lantern, which aims to provide an optical fiber lantern with good integrity, simple structure, strong stability and high aesthetics. The key points of the technical solutions are that the lamp beads are directly powered by a low-voltage power supply or a plug-in power supply, and after the lamp beads emit light, the light is transmitted to a periphery of the petals or the flower core part of the bouquet by optical fiber rods. The low-voltage power supply mode adopted has small use limitation, strong practicability and simple structure, and the present invention is suitable for the technical field of handicraft lanterns.