Panasonic Intellectual Property Management Co., Ltd.

Shinichi Kitaoka

Hideharu Kawachi

Hiroshi Kitano

Shintaro Hayashi

Yoshiyuki Nakano

Hirotaka Matsunami

Sachiko Azuma

Toshifumi Ogata

Katsushi Seki

Makoto Morikawa

Yoshiyuki Takahira

Kenji Maruyama

An optical fiber module includes an optical fiber containing a glass component, and a ferrule which is tubular in shape and covers an outer circumferential surface in an end portion of the optical fiber. The outer circumferential surface of the optical fiber and an inner circumferential surface of the ferrule are bonded by a silicone resin containing siloxane bonds at cross-linking points.

Optical fiber module, lighting device, and method of manufacturing optical fiber module

A lighting apparatus that wavelength-converts laser light guided by an optical fiber to output light having a different wavelength as the laser light, includes: a holder that holds the optical fiber; a wavelength converter that wavelength-converts the laser light emitted from the optical fiber; and a case that holds the wavelength converter and houses the holder. The holder includes a straight groove into which one end of the optical fiber is fitted.

Lighting apparatus

An illumination apparatus, which is to be connected to a light source apparatus that generates laser light and which is to be attached to an optical cable that guides the laser light, is provided. The illumination apparatus includes a light-emitting module which is to be attached to a tip portion of the optical cable. The light-emitting module receives the laser light emitted from the optical cable, converts the laser light into light having a different wavelength of a predetermined color, and emits the light. A heat dissipating lens case includes a lens and dissipates heat generated by the light-emitting module. The lens controls distribution of the light emitted by the light-emitting module. The heat dissipating lens case includes an attachment structure which allows the heat dissipating lens case to be removably attached to the light-emitting module.

Illumination apparatus

A light source device is provided. The light source device includes: a ferrule which holds an optical fiber; a light-emitting element which emits laser light; and a casing which houses the ferrule and the light-emitting element such that the laser light enters the optical fiber. The casing includes a through hole from a first end face to a second end face. The through hole includes a diameter which decreases in a stepwise manner from the first end face toward the second end face. The ferrule is fitted to a small bore portion of the through hole, which is smallest in diameter. The light-emitting element is fitted to a large bore portion of the through hole, which is larger in diameter than the small bore portion.

Light source device and manufacturing method of light source device

A lighting apparatus including a base is provided. The base includes a through-hole. The through-hole is aligned with an optical path of laser light for receiving and transmitting the laser light. A light emitter which, when irradiated with the laser light transmitted through the through-hole, radiates light by converting a wavelength of the laser light. An attachment component is provided on the base for attachment of the light emitter to the base. The light emitter is removable from the base. A light blocker opens the optical path of the laser light by being contacted by the light emitter when the light emitter is attached to the base, and blocks the optical path of the laser light when the light emitter is removed from the base.

A particle sensor is provided. The particle sensor includes a light projector that projects light to a detection area. A light receiver receives scattered light. The scattered light is light from the light projector that has been scattered by particles in the detection area. A first reflector reflects the scattered light to the light receiver. A light attenuator attenuates stray light that exits the first reflector. The first reflector includes a first aperture that introduces the light from the light projector into an interior of the first reflector and a second aperture that exits the stray light from the first reflector. The light attenuator includes a third aperture through which the stray light that exits the first reflector passes. An aperture area of the third aperture is smaller than an aperture area of the second aperture.

Particle sensor

A lighting device configured to accommodate an optical fiber is provided. The lighting device includes a breaking structure which accommodates a portion of the optical fiber in a state in which the portion includes two or more bends. The breaking structure is configured to break and sever the portion of the optical fiber when the optical fiber is subjected to a load of a predetermined magnitude.

Lighting device

An illumination apparatus which uses laser light emitted by a light source is provided. The illumination apparatus includes a housing which is tubular, internally includes an optical path for the laser light, and includes a first end surface having an opening through which the laser light passing through the optical path is released. A light emitter is opposed to the opening, receives the laser light released through the opening, converts the laser light into light having a different wavelength of a predetermined color, and emits the light. A cap is removably attached to a first end portion of the housing and through which the light emitted by the light emitter is released. A shutter opens the optical path when the cap is attached to the housing and closes the optical path when the cap is detached from the housing.

A particle sensor is provided. The particle sensor includes a light projector that projects light to a detection area. A light receiver receives scattered light. The scattered light is light from the light projector that has been scattered by particles in the detection area. A first support supports the light receiver. A second support supports the light projector and has a linear expansion coefficient different from a linear expansion coefficient of the first support. The first support includes a first placement region in which the light receiver is disposed and a second placement region in which the second support is disposed. The first placement region and the second placement region are located at different distances from at least one of an optical axis of the light projector and an optical axis of the light receiver.

A lamp according to the present invention includes: a line portion which blocks a part of light proceeding from a light emitting unit in a direction perpendicular to a tube axis direction; and a raised portion which blocks the light proceeding from the light emitting unit in the direction perpendicular to the tube axis direction that is not blocked by the line portion. The raised portion has an end portion having a linear shape in the tube axis direction, the end portion being an end portion of a section of the raised portion that blocks light.

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Osaka, Japan

Shinichi Kitaoka