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FR2960069B1 - METHOD FOR MANUFACTURING A LIGHT GUIDE, AND LIGHT GUIDE OBTAINED THEREBY - Google Patents

METHOD FOR MANUFACTURING A LIGHT GUIDE, AND LIGHT GUIDE OBTAINED THEREBY

Info

Publication number
FR2960069B1
FR2960069B1 FR1053733A FR1053733A FR2960069B1 FR 2960069 B1 FR2960069 B1 FR 2960069B1 FR 1053733 A FR1053733 A FR 1053733A FR 1053733 A FR1053733 A FR 1053733A FR 2960069 B1 FR2960069 B1 FR 2960069B1
Authority
FR
France
Prior art keywords
light guide
trench
manufacturing
fluid material
emission sources
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 - Fee Related
Application number
FR1053733A
Other languages
French (fr)
Other versions
FR2960069A1 (en
Inventor
Guillaume Boulais
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.)
GB Developpement
Original Assignee
GB Developpement
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 GB Developpement filed Critical GB Developpement
Priority to FR1053733A priority Critical patent/FR2960069B1/en
Publication of FR2960069A1 publication Critical patent/FR2960069A1/en
Application granted granted Critical
Publication of FR2960069B1 publication Critical patent/FR2960069B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00663—Production of light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0065—Manufacturing aspects; Material aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/44—Compression means for making articles of indefinite length
    • B29C43/46—Rollers
    • B29C2043/461—Rollers the rollers having specific surface features
    • B29C2043/463—Rollers the rollers having specific surface features corrugated, patterned or embossed surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/44—Compression means for making articles of indefinite length
    • B29C43/46—Rollers
    • B29C2043/468—Rollers take-off rollers, i.e. arranged adjacent a material feeding device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0075—Light guides, optical cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The method involves providing a trench for receiving light emission sources (26a, 26b) to a light guide before solidification of fluid material, where the emission sources illuminate the light guide. The fluid material is extruded through a die according to extrusion direction to provide the trench to the light guide before solidification process. The trench is realized after extrusion process through the die before the solidification process, where trench is provided with a central part (23) and a peripheral part (24). Independent claims are also included for the following: (1) a light guide comprising a trench (2) a device for manufacturing a light guide from a fluid material comprising a shape providing unit.
FR1053733A 2010-05-12 2010-05-12 METHOD FOR MANUFACTURING A LIGHT GUIDE, AND LIGHT GUIDE OBTAINED THEREBY Expired - Fee Related FR2960069B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1053733A FR2960069B1 (en) 2010-05-12 2010-05-12 METHOD FOR MANUFACTURING A LIGHT GUIDE, AND LIGHT GUIDE OBTAINED THEREBY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1053733A FR2960069B1 (en) 2010-05-12 2010-05-12 METHOD FOR MANUFACTURING A LIGHT GUIDE, AND LIGHT GUIDE OBTAINED THEREBY

Publications (2)

Publication Number Publication Date
FR2960069A1 FR2960069A1 (en) 2011-11-18
FR2960069B1 true FR2960069B1 (en) 2013-05-10

Family

ID=43014462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1053733A Expired - Fee Related FR2960069B1 (en) 2010-05-12 2010-05-12 METHOD FOR MANUFACTURING A LIGHT GUIDE, AND LIGHT GUIDE OBTAINED THEREBY

Country Status (1)

Country Link
FR (1) FR2960069B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015055784A1 (en) 2013-10-16 2015-04-23 Gb Developpement Method for rapidly manufacturing a light guide, and resulting light guide and apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004202731A (en) * 2002-12-24 2004-07-22 Sumitomo Chem Co Ltd Manufacturing method of large light guide plate
WO2005107363A2 (en) * 2004-04-30 2005-11-17 Oy Modilis Ltd. Ultrathin lighting element
WO2005121638A1 (en) * 2004-06-08 2005-12-22 Fuji Photo Film Co., Ltd. Light guide plate, planar lighting apparatus using the light guide plate, and liquid crystal display
JP2007155791A (en) * 2005-11-30 2007-06-21 Fujifilm Corp Surface light source device
JP2008003234A (en) * 2006-06-21 2008-01-10 Fujifilm Corp Optical sheet and manufacturing method thereof
JP2008052940A (en) * 2006-08-22 2008-03-06 Citizen Electronics Co Ltd Light guide plate and its manufacturing method, and back light unit using its light guide plate
JP2010021131A (en) * 2008-06-09 2010-01-28 Hitachi Ltd Display device and backlight unit used for the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015055784A1 (en) 2013-10-16 2015-04-23 Gb Developpement Method for rapidly manufacturing a light guide, and resulting light guide and apparatus

Also Published As

Publication number Publication date
FR2960069A1 (en) 2011-11-18

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Legal Events

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ST Notification of lapse

Effective date: 20160129