Abstract: Provided is an optical temperature sensor including a temperature sensing element having light transmission characteristics that vary with temperature, a hollow holding member that holds the temperature sensing element, and an optical fiber that is arranged inside the holding member, the optical fiber including a tip face that is disposed to face the temperature sensing element at a position separated from the temperature sensing element by a predetermined distance. The temperature sensing element allows light emitted from the tip face of the optical fiber to be incident thereon, allows the incident light to be transmitted therethrough, and allows reflected light of the transmitted light that has been reflected by a measuring object to be transmitted therethrough.

Abstract: A temperature sensor includes a sensing member, a retention member configured to secure the sensing member, an optical fiber configured to irradiate the sensing member with light and guide the light reflected from the sensing member, and a cylindrical sleeve configured to accommodate the optical fiber. The retention member is a plate-shaped component and has a cut-out portion formed on at least one of a peripheral portion of a non-retention surface of the retention member opposite to a retention surface to which the sensing member is secured and a side surface of the retention member. The retention member is secured to a tip of the sleeve so that the non-retention surface is exposed to the outside, and the tip of the sleeve is engaged with the cut-out portion.

Abstract: Provided is an optical temperature sensor including a temperature sensing element having light transmission characteristics that vary with temperature, a hollow holding member that holds the temperature sensing element, and an optical fiber that is arranged inside the holding member, the optical fiber including a tip face that is disposed to face the temperature sensing element at a position separated from the temperature sensing element by a predetermined distance. The temperature sensing element allows light emitted from the tip face of the optical fiber to be incident thereon, allows the incident light to be transmitted therethrough, and allows reflected light of the transmitted light that has been reflected by a measuring object to be transmitted therethrough.

Abstract: It is disclosed a light emitting diode lamp composing a window through which light is released forwardly, a plurality of light emitting diodes located at a corner of the window or behind the frame of the window, and a light reflector having a plurality of light reflecting faces whereby light emitted from the light emitting diodes is reflected toward the window. The lamp is suited as an automobile lamp, especially as a tail lamp.

Abstract: The present invention relates to a connector for optical fiber used as optical communication parts, in particular to a ferrule which is one member of a plug side of the connector, a pointed end portion of the ferrule being partially cut off, and the optical fiber being inserted and fixed into the ferrule, the terminal treatment of the optical fiber is practiced by injuring the circumferential surface of the pointed end portion of the optical fiber and by cleaving the pointed end portion of the optical fiber.

Abstract: This invention relates to a connector for optical fiber used for optical communication parts, especially to a plug of the connector, comprising an inner tube into which an endportion of an optical fiber cord, whose cover is peeled off, is inserted and which is formed with axial slittings; and an outer tube being fitted onto the inner tube and made of a solid material, the inner tube being reduced in diameter at the portion having the slittings, thereby fixing the optical fiber thereto.