The present disclosure includes an optical fiber ribbon, using polymer optical fibers and an extremely thin adhesive coating to provide adhesion between the fibers. The external surfaces of the optical fiber ribbons are precisely placed with respect to the optical cores of the constituent fibers, and the optical cores of the fibers are precisely placed with respect to each other. Therefore, the external surface of the ribbon is used as a reference surface for aligning the array of optical fiber cores to arrays of optical emitters or detectors at the ends of the ribbon. Thus, the optical fiber ribbon of the present disclosure is cut, either by a sharp blade or other tool as suitable to expose a cross-section of the ribbon, and inserted as a single unit into a receptacle that aligns the outer surface of the ribbon with respect to the array of optical emitters or detectors.

Vibration monitors having indicator lights are described herein. An example vibration monitor includes a housing, a sensor in the housing, a light source extending circumferentially around an outer surface of the housing, and circuitry to activate the light source based on a status of the vibration monitor.

A fluorine-containing resin composition of the present invention includes: a fluorine-containing resin; and a solvent in which the fluorine-containing resin is dissolved. The solvent is a perfluoroalkene. The fluorine-containing resin includes a fluorine-containing polymer including a structural unit (A) represented by the following formula (1).

##STR00001##

(In the formula (1), R.sub.ff.sup.1 to R.sub.ff.sup.4 each independently represent a fluorine atom, a perfluoroalkyl group having 1 to 7 carbon atoms, or a perfluoroalkyl ether group having 1 to 7 carbon atoms. R.sub.ff.sup.1 and R.sub.ff.sup.2 are optionally linked to form a ring.)

A core material (102) is contained in a cylindrical container (101) (first step). The container (101) is formed from a thermoplastic cladding material. The container (101) can be formed from a heat resistant glass such as a borosilicate glass, for example. The core material (102) is a halide having a lower melting point than the cladding material. Next, the container (101) containing the core material (102) is heated using a heater (151) and stretched, thereby forming an optical fiber emitter (105) comprising a core (103) formed from a halide crystal, and a cladding (104) formed from the cladding material.

A plastic scintillating fiber includes: an outermost peripheral layer containing a compound of a heavy metal element and containing a resin having scintillating properties; a core disposed inside the outermost peripheral layer and containing at least one type of fluorescent substance that absorbs the scintillation light generated from the outermost peripheral layer and wavelength-converts the absorbed light into light having a wavelength longer than that of the absorbed light; and a cladding layer covering an outer peripheral surface of the core and having a refractive index lower than that of the core. A wavelength shifting fiber including the core and the cladding layer, and the outermost peripheral layer covering an outer peripheral surface of the wavelength shifting fiber are integrally formed.

The present invention provides an optical waveguide photosensitive resin composition containing a resin component and a photoacid generator, wherein the photoacid generator has a characteristic property (x) such that an absorption limit (O-O transition energy) calculated based on the shape of an ultraviolet spectrum obtained by spectrometrically analyzing a 0.1 wt % propylene carbonate solution of the photoacid generator by means of an ultraviolet/visible spectrophotometer is 3.5 to 4.1 eV. Where an optical waveguide core layer is formed by using the inventive optical waveguide photosensitive resin composition, for example, the optical waveguide core layer has a lower loss, and is excellent in patternability and reflow resistance.

An intravenous administration set is disclosed. The intravenous administration set includes a fluid container that contains a medicament and has an outlet on a proximal end thereof, a patient access tip that has an inlet on a distal end and a proximal end configured to be inserted into a patient, a tubing that has a distal end coupled to the outlet of the fluid container and a proximal end coupled to the distal end of the patient access tip, a pump coupled to the tubing between the fluid container and the patient access tip, and a light source emitting a light along the tubing toward the patient access tip.

In some embodiments, a head-mounted augmented reality display system comprises one or more hybrid waveguides configured to display images by directing modulated light containing image information into the eyes of a viewer. Each hybrid waveguide is formed of two or more layers of different materials. A first (e.g., thicker) layer is a highly optically transparent core layer, and a second (e.g., thinner) auxiliary layer includes a pattern of protrusions and indentations, e.g., to form a diffractive optical element. The pattern may be formed by imprinting. The hybrid waveguide may include additional layers, e.g., forming a plurality of alternating core layers and thinner patterned layers. Multiple waveguides may be stacked to form an integrated eyepiece, with each waveguide configured to receive and output light of a different component color.

This optical member has a first layer with a porous structure, the first layer includes a first area with the porous structure and a second area in which the pores of the porous structure are filled with a resin composition, the second area includes a plurality of discretely arranged island-like areas, and when the area ratio of the first layer occupied by the second area is denoted by P % and the haze value of the first layer is denoted by H %, H/P is less than 0.20.

A graded-index polymer waveguide (30) and a manufacturing method thereof are provided. The method includes providing a waveguide substrate (1); manufacturing a waveguide lower cladding layer (2) on a surface of the waveguide substrate (1); coating a material of a waveguide core layer (3) having UV photosensitivity on a surface of the waveguide lower cladding layer (2) away from the waveguide substrate (1); performing a hot imprinting process for the material of the waveguide core layer by means of a flexible transfer film mold and forming a waveguide core layer (3) having an imprinted waveguide link structure; performing a heat treatment process for the waveguide core layer (3); performing a pre-exposure process for the waveguide core layer; coating a waveguide upper cladding layer on a surface of a waveguide core layer (3); and curing the waveguide core layer (3) and the waveguide upper cladding layer (4).