GB2365815B - Manufacture of optical elements - Google Patents

Manufacture of optical elements

Info

Publication number
GB2365815B
GB2365815B GB0126116A GB0126116A GB2365815B GB 2365815 B GB2365815 B GB 2365815B GB 0126116 A GB0126116 A GB 0126116A GB 0126116 A GB0126116 A GB 0126116A GB 2365815 B GB2365815 B GB 2365815B
Authority
GB
United Kingdom
Prior art keywords
manufacture
optical elements
optical
elements
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
GB0126116A
Other versions
GB2365815A (en
GB0126116D0 (en
Inventor
Yoshinari Kawashima
Nobuo Suematsu
Akira Koshimura
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.)
Sony Corp
Original Assignee
Sony Corp
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
Priority claimed from JP01460499A external-priority patent/JP4099887B2/en
Application filed by Sony Corp filed Critical Sony Corp
Publication of GB0126116D0 publication Critical patent/GB0126116D0/en
Publication of GB2365815A publication Critical patent/GB2365815A/en
Application granted granted Critical
Publication of GB2365815B publication Critical patent/GB2365815B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
    • B29D11/00769—Producing diffraction gratings
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B29C33/424—Moulding surfaces provided with means for marking or patterning
    • 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
    • B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • B29C45/372—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings provided with means for marking or patterning, e.g. numbering articles
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
GB0126116A 1999-01-22 2000-01-20 Manufacture of optical elements Expired - Fee Related GB2365815B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP01460499A JP4099887B2 (en) 1999-01-22 1999-01-22 Optical element manufacturing method and optical element manufacturing mold
GB0001320A GB2347379B (en) 1999-01-22 2000-01-20 Optical element and its manufacture

Publications (3)

Publication Number Publication Date
GB0126116D0 GB0126116D0 (en) 2002-01-02
GB2365815A GB2365815A (en) 2002-02-27
GB2365815B true GB2365815B (en) 2002-10-30

Family

ID=26243438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0126116A Expired - Fee Related GB2365815B (en) 1999-01-22 2000-01-20 Manufacture of optical elements

Country Status (1)

Country Link
GB (1) GB2365815B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB623588A (en) * 1945-03-06 1949-05-19 Richard Waterman Luce Manufacture of moulds for optical screens and reflecting signs
US4761253A (en) * 1984-07-06 1988-08-02 Lgz Landis & Gyr Zug Ag Method and apparatus for producing a relief pattern with a microscopic structure, in particular having an optical diffraction effect
JPH07108536A (en) * 1993-10-08 1995-04-25 Olympus Optical Co Ltd Manufacture of mold for forming reticle
JPH09254161A (en) * 1996-03-26 1997-09-30 Enplas Corp Ine processing of mold
JPH11114963A (en) * 1997-10-17 1999-04-27 Olympus Optical Co Ltd Mold for manufacturing relief type diffraction optical element
EP1068945A2 (en) * 1999-07-13 2001-01-17 Matsushita Electric Industrial Co., Ltd. Micro-shape transcription method, micro-shape transcription apparatus, and optical-component manufacture method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB623588A (en) * 1945-03-06 1949-05-19 Richard Waterman Luce Manufacture of moulds for optical screens and reflecting signs
US4761253A (en) * 1984-07-06 1988-08-02 Lgz Landis & Gyr Zug Ag Method and apparatus for producing a relief pattern with a microscopic structure, in particular having an optical diffraction effect
JPH07108536A (en) * 1993-10-08 1995-04-25 Olympus Optical Co Ltd Manufacture of mold for forming reticle
JPH09254161A (en) * 1996-03-26 1997-09-30 Enplas Corp Ine processing of mold
JPH11114963A (en) * 1997-10-17 1999-04-27 Olympus Optical Co Ltd Mold for manufacturing relief type diffraction optical element
EP1068945A2 (en) * 1999-07-13 2001-01-17 Matsushita Electric Industrial Co., Ltd. Micro-shape transcription method, micro-shape transcription apparatus, and optical-component manufacture method

Also Published As

Publication number Publication date
GB2365815A (en) 2002-02-27
GB0126116D0 (en) 2002-01-02

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20091130

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140120