ES2046146B1 - Lente para faro y metodo de producir un troquel para la misma. - Google Patents

Lente para faro y metodo de producir un troquel para la misma.

Info

Publication number
ES2046146B1
ES2046146B1 ES09202519A ES9202519A ES2046146B1 ES 2046146 B1 ES2046146 B1 ES 2046146B1 ES 09202519 A ES09202519 A ES 09202519A ES 9202519 A ES9202519 A ES 9202519A ES 2046146 B1 ES2046146 B1 ES 2046146B1
Authority
ES
Spain
Prior art keywords
lens
refraction
respect
die
incident
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES09202519A
Other languages
English (en)
Other versions
ES2046146R (es
ES2046146A2 (es
Inventor
Masahito Ishikawa
Toshimasa Kodera
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of ES2046146A2 publication Critical patent/ES2046146A2/es
Publication of ES2046146R publication Critical patent/ES2046146R/es
Application granted granted Critical
Publication of ES2046146B1 publication Critical patent/ES2046146B1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/808—Lens mold

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

LENTE PARA FARO Y METODO DE PRODUCIR UN TROQUEL PARA LA MISMA. EL METODO CONSISTE EN DETERMINAR LA DIRECCION DE UN RAYO INCIDENTE CON RESPECTO A UNA SUPERFICIE DE SALIDA: DETERMINAR UNA SUPERFICIE LIMITE DE REFRACCION SEGUN LA LEY DE REFRACCION EN EL CASO DE UN ESCALON DE LENTE FRESNEL, DETERMINA UNA SUPERFICIE DE REFLEXION TOTAL SEGUN LA LEY DE REFLEXION EN EL CASO DE UN ESCALON DE PRISMA EN BASE A UNA DIRECCION DE UN RAYO INCIDENTE CON RESPECTO A UNA SUPERFICIE INCIDENTE DE LA LENTE Y LA DIRECCION DEL RAYO INCIDENTE CON RESPECTO A LA SUPERFICIE DE SALIDA QUE SE HA OBTENIDO ANTES; GENERAR UNA CURVA CERRADA CALCULANDO UN PRODUCTO VECTORIAL W O W DE UN VECTOR NORMAL DE LA SUPERFICIE LIMITE DE REFRACCION S DEL ESCALON DE LENTE FRESNEL O LA SUPERFICIE DE REFLEXION TOTAL R DEL ESCALON DE PRISMA Y UN VECTOR NORMAL EN EL PUNTO DE REFRACCION DE LA SUPERFICIE DE SALIDA, Y CONECTANDO DICHOS PRODUCTOS VECTORIALES COMO VECTORES TANGENCIALES POR APROXIMACION DE JUNQUILLO, Y FORMAR UNA RANURA EN "V" QUETIENE UNA SUPERFICIE INCLINADA EN UN MATERIAL DE TROQUEL A LO LARGO DE LA CURVA CERRADA.
ES09202519A 1991-12-14 1992-12-11 Lente para faro y metodo de producir un troquel para la misma. Expired - Lifetime ES2046146B1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3352000A JP2700970B2 (ja) 1991-12-14 1991-12-14 車輌用灯具のレンズ及びその金型作製方法

Publications (3)

Publication Number Publication Date
ES2046146A2 ES2046146A2 (es) 1994-01-16
ES2046146R ES2046146R (es) 1996-01-16
ES2046146B1 true ES2046146B1 (es) 1996-08-01

Family

ID=18421094

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09202519A Expired - Lifetime ES2046146B1 (es) 1991-12-14 1992-12-11 Lente para faro y metodo de producir un troquel para la misma.

Country Status (6)

Country Link
US (1) US5398137A (es)
JP (1) JP2700970B2 (es)
DE (1) DE4241889C2 (es)
ES (1) ES2046146B1 (es)
FR (1) FR2685095B1 (es)
GB (1) GB2262801B (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335244B4 (de) * 1993-10-15 2006-10-19 Daimlerchrysler Ag Anordnung zur Bildaufnahme
KR100234257B1 (ko) * 1995-08-30 1999-12-15 윤종용 대물렌즈 장치 및 안정된 포커스 서보 신호를 얻는방법 및 이를 적용한 광픽업 장치 및 두께가 다른 디스크를 판별하는 방법 및 두께가 다른 디스크로부터 정보를 재생하고 기록하는 방법
DE19532680A1 (de) * 1995-09-05 1997-03-06 Telefunken Microelectron Optisches System
DE19647357A1 (de) * 1996-11-15 1998-05-20 Hella Kg Hueck & Co Fahrzeugleuchte
JPH11260104A (ja) * 1998-03-05 1999-09-24 Koito Mfg Co Ltd 車輌用灯具
JP4212902B2 (ja) * 2003-01-07 2009-01-21 大日本印刷株式会社 フレネルレンズ、フレネルレンズ成形型、フレネルレンズ製造方法及びフレネルレンズを用いた透過型スクリーン
JP4293857B2 (ja) * 2003-07-29 2009-07-08 シチズン電子株式会社 フレネルレンズを用いた照明装置
JP4926642B2 (ja) * 2005-12-07 2012-05-09 株式会社小糸製作所 車両用照明灯具
US7410279B2 (en) * 2005-12-07 2008-08-12 Koito Manufacturing Co., Ltd. Vehicle lamp
JP4565656B2 (ja) * 2006-02-28 2010-10-20 スタンレー電気株式会社 灯具
US8541724B2 (en) * 2006-09-29 2013-09-24 Lone Star Ip Holdings, Lp Small smart weapon and weapon system employing the same
US7589917B2 (en) * 2007-10-25 2009-09-15 Honeywell International Inc. Collimating fresnel lens with diffuser appearance
CN104516108B (zh) * 2013-09-30 2017-05-10 清华大学 自由曲面成像系统的设计方法
WO2021093669A1 (zh) * 2019-11-11 2021-05-20 苏州欧普照明有限公司 照明装置及照明系统
WO2022024864A1 (ja) * 2020-07-30 2022-02-03 国立大学法人京都大学 レンズ設計方法、レンズ設計装置、コンピュータプログラム及びレンズ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59138050A (ja) * 1983-01-27 1984-08-08 トヨタ自動車株式会社 ランプ構造
JPS6081701A (ja) * 1983-10-11 1985-05-09 日産自動車株式会社 車両用灯具
IT1211618B (it) * 1987-12-22 1989-11-03 Fiat Auto Spa Fanale retronebbia per autoveicoli
EP0380663A4 (en) * 1988-03-30 1990-10-24 Nauchno-Proizvodstevennoe Obiedinenie Po Avtoelektronike I Avtotraktornomu Elektrooborudovaniju Collimator
US4927248A (en) * 1988-04-08 1990-05-22 Koito Manufacturing Co., Ltd. Vehicle lamp lens having Fresnel lens
US4969783A (en) * 1988-04-08 1990-11-13 Koito Manufacturing Co., Ltd. Method of working fresnel step
JPH071687Y2 (ja) * 1988-08-22 1995-01-18 株式会社小糸製作所 車両灯具用レンズ
DE4020081A1 (de) * 1990-06-23 1992-01-02 Bosch Gmbh Robert Fahrzeugleuchte

Also Published As

Publication number Publication date
ES2046146R (es) 1996-01-16
FR2685095A1 (fr) 1993-06-18
GB2262801B (en) 1994-12-07
GB2262801A (en) 1993-06-30
JP2700970B2 (ja) 1998-01-21
FR2685095B1 (fr) 1994-08-12
US5398137A (en) 1995-03-14
ES2046146A2 (es) 1994-01-16
GB9226045D0 (en) 1993-02-10
DE4241889A1 (es) 1993-06-24
JPH05164906A (ja) 1993-06-29
DE4241889C2 (de) 1997-03-20

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