WO2008152970A1 - Free curved-surface optical element, molding die, and optical device - Google Patents

Free curved-surface optical element, molding die, and optical device Download PDF

Info

Publication number
WO2008152970A1
WO2008152970A1 PCT/JP2008/060352 JP2008060352W WO2008152970A1 WO 2008152970 A1 WO2008152970 A1 WO 2008152970A1 JP 2008060352 W JP2008060352 W JP 2008060352W WO 2008152970 A1 WO2008152970 A1 WO 2008152970A1
Authority
WO
WIPO (PCT)
Prior art keywords
free curved
molding die
optical element
faces
optical device
Prior art date
Application number
PCT/JP2008/060352
Other languages
French (fr)
Japanese (ja)
Inventor
Yoshihiro Okumura
Original Assignee
Konica Minolta Opto, Inc.
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 Konica Minolta Opto, Inc. filed Critical Konica Minolta Opto, Inc.
Publication of WO2008152970A1 publication Critical patent/WO2008152970A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
    • B29C70/76—Moulding on edges or extremities of the preformed part
    • 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
    • B29L2012/00—Frames
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3475—Displays, monitors, TV-sets, computer screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Intended is to provide a free curved-surface optical element, a molding die and an optical device, which can perform a highly precise positioning. The mirror sides of first to third holding portions (27a - 27c) for abutting against a holding part (18) thereby to position and fix a free curved-surface mirror (14) form first to third mounting reference faces (29a - 29c) or the curved surfaces composed of arcs of about one quarter circle. The first to third mounting reference faces (29a - 29c) are made to abut against the V-shaped faces of first to third notched faces (48a - 48c) of the holding part (18), respectively, thereby to position the free curved-surface mirror (14).
PCT/JP2008/060352 2007-06-14 2008-06-05 Free curved-surface optical element, molding die, and optical device WO2008152970A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-157408 2007-06-14
JP2007157408 2007-06-14

Publications (1)

Publication Number Publication Date
WO2008152970A1 true WO2008152970A1 (en) 2008-12-18

Family

ID=40129575

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/060352 WO2008152970A1 (en) 2007-06-14 2008-06-05 Free curved-surface optical element, molding die, and optical device

Country Status (1)

Country Link
WO (1) WO2008152970A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562597A1 (en) * 2011-08-26 2013-02-27 Samsung Electronics Co., Ltd. Projector with reflector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6364014A (en) * 1986-09-05 1988-03-22 Ricoh Co Ltd Beam reflecting member and supporting method for it
JPH09230222A (en) * 1996-02-21 1997-09-05 Tec Corp Optical scanner
JP2004091239A (en) * 2002-08-30 2004-03-25 Minolta Co Ltd Optical element and mold for forming the same
JP2007021739A (en) * 2005-07-12 2007-02-01 Konica Minolta Opto Inc Mold for molding free curved surface optical element and free curved surface optical element molded using it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6364014A (en) * 1986-09-05 1988-03-22 Ricoh Co Ltd Beam reflecting member and supporting method for it
JPH09230222A (en) * 1996-02-21 1997-09-05 Tec Corp Optical scanner
JP2004091239A (en) * 2002-08-30 2004-03-25 Minolta Co Ltd Optical element and mold for forming the same
JP2007021739A (en) * 2005-07-12 2007-02-01 Konica Minolta Opto Inc Mold for molding free curved surface optical element and free curved surface optical element molded using it

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562597A1 (en) * 2011-08-26 2013-02-27 Samsung Electronics Co., Ltd. Projector with reflector
CN102955345A (en) * 2011-08-26 2013-03-06 三星电子株式会社 Jactat caroline

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