公开(公告)号：DE69624164T2

公开(公告)日：2003-06-05

申请号：DE69624164

申请日：1996-05-17

Applicant: BRIDGESTONE CORP

Inventor： SUGIYAMA HIDEO ,  SUGIMACHI MASATO ,  HOTTA ATSUSHI ,  ISHIHARADA MINORU ,  TANUMA ITSUO ,  HASHIMOTO TORAO

IPC: G02B6/24 ,  G02B6/38 ,  G02B6/42 ,  G02B6/10 ,  G02B6/16

公开(公告)号：GB2336660A

公开(公告)日：1999-10-27

申请号：GB9908637

申请日：1999-04-15

Applicant: BRIDGESTONE CORP

Inventor： SUGIYAMA HIDEO ,  SUGIMACHI MASATO ,  ISHIHARADA MINORU ,  MORIMURA YASUHIRO ,  TERAHAMA TATSUO ,  FUKUYAMA HIROSHI ,  TANUMA ITSUO

IPC: F21V8/00 ,  G02B6/00 ,  G02B6/032

Abstract: A light transmission tube 1C comprises a tubular cladding 3 and a core section 2 within the cladding having a higher refractive index than the cladding, the light transmission tube being characterized by a longitudinal belt-like reflecting layer 4A,4B formed between the cladding and the core such that light passing through the core section is reflected and scattered by the reflecting layer and emitted from an outer surface area LA,LB of the tubular cladding opposite the reflecting layer. The tube may have a reflective protection layer 5 formed on the outer surface of the tubular clad to cover the belt-like reflecting layer. The belt-like reflecting layer comprises light scattering particles and may be formed into a spiral configuration to allow light to be emitted in a plurality of directions. The width of the belt-like reflecting layer may vary and the tubular clad may have a noncircular cross section. The tubular clad formation material may contain an ultraviolet light shielding material or an ultraviolet light absorbing material.

公开(公告)号：DE19917886A1

公开(公告)日：1999-10-21

申请号：DE19917886

申请日：1999-04-20

Applicant: BRIDGESTONE CORP

Inventor： SUGIYAMA HIDEO ,  SUGIMACHI MASATO ,  ISHIHARADA MINORU ,  MORIMURA YASUHIRO ,  TERAHAMA TATSUO ,  FUKUYAMA HIROSHI ,  TANUMA ITSUO

IPC: F21V8/00 ,  G02B6/00 ,  G02B6/032 ,  G02B6/26

Abstract: A light transmission tube includes a tubular clad (3) and a core section (2) with a higher refractive index than that of the tubular clad, a belt-like reflecting layer (4A,4B) is formed between the clad and the core, extending in the longitudinal direction of the clad. A light transmission tube includes a tubular clad (3) and a core section (2) with a higher refractive index than that of the tubular clad, a belt-like reflecting layer (4A,4B) is formed between the clad and the core, extending in the longitudinal direction of the clad. Light passing through the core is reflected and scattered by the reflecting layer and then emitted from an outer surface area of the clad, this area being located opposite to one side of the clad where the reflecting layer has been formed. Independent claims are also included for (a) light transmission tube with a number of belt-like reflecting layers, a light passing through the core is caused to emit from side surface areas of the clad in a plurality of directions, and (b) a process for manufacturing the above light transmission tube and comprising using a multicolor extrusion molding machine with three crew sections, simultaneously introducing core, clad, and reflecting layer formation materials into the extrusion machine, at the same moment the core formation material is extruded to be formed into a solid cylindrical core member, the reflecting layer formation material is extruded into a number of belt-like reflecting layers formed on the outer surface of the core, the clad formation material is extruded into a tubular member covering the core and the reflecting layers.

公开(公告)号：DE3844604C2

公开(公告)日：1996-08-22

申请号：DE3844604

申请日：1988-01-28

Applicant: BRIDGESTONE CORP

Inventor： ISHIHARADA MINORU ,  CHIKARAISHI TOSHIO ,  KANEDA HIROSHI ,  TOMITA SEISUKE

IPC: B29C35/04 ,  B29C35/06 ,  B29C35/08 ,  B29C35/10 ,  B29C47/06 ,  B29D11/00 ,  G01L1/24 ,  G02B6/16 ,  B29K9/00 ,  G02B1/04

Abstract: In a pressure-sensitive sensor an optical wave guide consists of a light source connected to a light-sensitive receiver by a transparent core inside a covering; both core and covering are elastomers and the core has a somewhat greater refractive index than the covering material and is made of chloroprene, urethane, silicone, fluorine, acrylic, ethylenepropylenediene terpolymer or epichlorhydrin rubber. The core material can also be an alkyl group contg.polyorgano-siloxanes, and the covering can be polydimethylsiloxane, polyorganosiloxane contg. fluorine or alkyl gp. contg.polyorgano-siloxanes. The covering can be a liquid rubber of the gp.of silicone, fluorine, butadiene or epichlorhydrin rubbers

公开(公告)号：JP2001256813A

公开(公告)日：2001-09-21

申请号：JP2000063886

申请日：2000-03-08

Applicant: BRIDGESTONE CORP

Inventor： ISHIHARADA MINORU

IPC: A63F7/02 ,  F21S2/00 ,  F21V8/00 ,  F21Y101/02 ,  G02B6/00

Abstract: PROBLEM TO BE SOLVED: To provide a lighting device of high switching speed and capable of emitting various colors of light in line shape or a rod shape, and a play machine using the same. SOLUTION: This lighting device is constructed is such a manner that a light from a light source unit 11 is introduced into a light transmission tube 1 and that the light is irradiated from a side peripheral surface of the light transmission tube 1. Plural light emitting diodes 12, 13, 14 are provided in the light transmission tube 1 in such a manner that plural light emitting diodes 12, 13, 14 is facing to an end surface of the light transmission tube 1. The light transmission tube 1 has a belt shaped reflection layer 4 extending in a longitudinal direction of the tube formed between a core 2 and a tube shaped clad 3 to cover it. The light transmission tube 1 of the lighting device 10 is arranged along an upper side part of a display part 75 of a system component stereo 70.

公开(公告)号：JP2001043702A

公开(公告)日：2001-02-16

申请号：JP21399299

申请日：1999-07-28

Applicant: BRIDGESTONE CORP

Inventor： ISHIHARADA MINORU ,  TERAHAMA TATSUO

IPC: B29C47/06 ,  F21S2/00 ,  F21W111/02 ,  F21Y101/02 ,  F21Y103/02

Abstract: PROBLEM TO BE SOLVED: To provide a delineator of superior visibility, even when a head lamp is not turned on. SOLUTION: In a delineator 10, one end side of an optical transmission tube 1 is curved into a circular loop shape, and the loop-shaped part is made as a luminescent part 11. An outer periphery of a part continuous with the loop- shaped luminescent part 11 is covered with a reflecting protective layer 5. In a part immediately close to the loop-shaped luminescent part 11, a bracket 12 for fixing the delineator 10 to a support or a wall on the side of a guide rail or a road is mounted. The other end side of the optical transmission tube 1 is drawn into a light source unit. Within the optical transmission tube 1, light is introduced from the light source unit. The light is radiated from a side peripheral surface of the luminescent part 11 of the optical transmission tube 1. In the optical transmission tube 1, a band-shaped reflecting layer 4, extending in the longitudinal direction of the tube 1, is formed between a core 2 and a tubular clad 3 covering the core 2.

公开(公告)号：JP2001035207A

公开(公告)日：2001-02-09

申请号：JP20799299

申请日：1999-07-22

Applicant: BRIDGESTONE CORP

Inventor： ISHIHARADA MINORU

IPC: F21S8/08

Abstract: PROBLEM TO BE SOLVED: To provide a foot-area illuminator or light weight, capable of illuminating the are around one's feet with sufficient brightness. SOLUTION: This foot-area illuminator has a light radiator 1 and a light source unit 10, a source unit 10 being equipped with an LED 11, a solar battery 18, and the like. The light radiator 1 is equipped with a tubular clad and the core, the core being made of a material of refractive index higher than the material of the clad. A plurality of strip-shaped reflection layers (4A, 4B, 4C) are formed in streaks along the longitudinal direction between the tubular clad and the core, and the light passing through the core is reflected/scattered by the reflection layers (4A, 4B, 4C) and radiated in a plurality of directions from the outer circumferential surface of the tubular clad on the opposite side to the side, where the reflection layers are formed.

公开(公告)号：JP2001034158A

公开(公告)日：2001-02-09

申请号：JP20498599

申请日：1999-07-19

Applicant: BRIDGESTONE CORP

Inventor： ISHIHARADA MINORU

IPC: G09B19/00 ,  G02B6/00 ,  H01S3/00

Abstract: PROBLEM TO BE SOLVED: To provide a pointer of a light emission type capable of easily finding out the spot indicated by a player. SOLUTION: The pointer has an optical radiator 1 and a grip 10 containing an LED 11, a dry cell 18, etc. The optical radiator 1 has a tubular clad 3 and a core 2 composed of material having the refractive index higher than the refractive index of this clad material. Plural lengths of belt-like reflection layers 4A, 4B and 4C are formed between the tubular clad 3 and the core 2 along the longitudinal direction thereof. The light passing the core 2 is reflected and scattered by the reflection layers 4A, 4B and 4C and is radiated from the outer peripheral surface of the tubular clad 3 on the side opposite to the side formed with the reflection layers. The light is radiated onto a beam from its tip.

公开(公告)号：JP2001029114A

公开(公告)日：2001-02-06

申请号：JP20343699

申请日：1999-07-16

Applicant: BRIDGESTONE CORP

Inventor： ISHIHARADA MINORU

IPC: A45B3/04

Abstract: PROBLEM TO BE SOLVED: To provide a light-emitting stick that is light in weight and excellent in the visibility of light radiated. SOLUTION: The stick comprises a light-radiating body 1, and a grip 10 that houses an LED, a dry battery and the like. The light-radiating body 1 has tubular cladding 3 and a core 2 of a material of a refractive index larger than that of the cladding 3, between which a plurality of reflecting layers 4A to 4C in strips are formed in the longitudinal direction so as to reflect and scatter light passing through the core 2 or radiate it in a plurality of directions from their opposite places on the periphery of the tubular cladding 3.

公开(公告)号：JP2000222907A

公开(公告)日：2000-08-11

申请号：JP2019199

申请日：1999-01-28

Applicant: BRIDGESTONE CORP

Inventor： MASUTANI MASANORI ,  ISHIHARADA MINORU

IPC: H04N1/04 ,  F21S2/00 ,  G02B6/00

Abstract: PROBLEM TO BE SOLVED: To provide a compact linear illuminant, providing side light emission having strong directivity even with littlle power, having good mass-productivity allowing reduction of restriction of installation location and a highly efficient scanner using it. SOLUTION: This linear illuminant is provided with a light emitting means 2 comprising a transparent columnar light guide matter 4 and a light source device arranged at longitudinal one end of the light emitting means 2. The linear illuminant outgoes incident light from the light source device from longitudinal side surface of the light emitting means 2. At least one strip light reflecting layer 5 is formed by printing along longitudinal side surface of the columnar light guide matter 4.