GB416398A - Improvements in or relating to optical lenses and similar devices - Google Patents

Improvements in or relating to optical lenses and similar devices

Info

Publication number
GB416398A
GB416398A GB603134A GB603134A GB416398A GB 416398 A GB416398 A GB 416398A GB 603134 A GB603134 A GB 603134A GB 603134 A GB603134 A GB 603134A GB 416398 A GB416398 A GB 416398A
Authority
GB
United Kingdom
Prior art keywords
optical lenses
mount
die
moulded
highly polished
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
Application number
GB603134A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 to NL39847D priority Critical patent/NL39847C/xx
Application filed by Individual filed Critical Individual
Priority to GB603134A priority patent/GB416398A/en
Priority to FR775843D priority patent/FR775843A/fr
Publication of GB416398A publication Critical patent/GB416398A/en
Expired 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
    • 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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • 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
    • B29L2011/0016—Lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
GB603134A 1934-02-23 1934-02-23 Improvements in or relating to optical lenses and similar devices Expired GB416398A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL39847D NL39847C (enrdf_load_stackoverflow) 1934-02-23
GB603134A GB416398A (en) 1934-02-23 1934-02-23 Improvements in or relating to optical lenses and similar devices
FR775843D FR775843A (fr) 1934-02-23 1934-07-13 Perfectionnements aux lentilles optiques et dispositifs similaires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB603134A GB416398A (en) 1934-02-23 1934-02-23 Improvements in or relating to optical lenses and similar devices

Publications (1)

Publication Number Publication Date
GB416398A true GB416398A (en) 1934-09-13

Family

ID=9807155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB603134A Expired GB416398A (en) 1934-02-23 1934-02-23 Improvements in or relating to optical lenses and similar devices

Country Status (3)

Country Link
FR (1) FR775843A (enrdf_load_stackoverflow)
GB (1) GB416398A (enrdf_load_stackoverflow)
NL (1) NL39847C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419478A (en) * 1940-10-24 1947-04-22 Hartford Nat Bank & Trust Co Apparatus for indirect X-ray photography
US2511840A (en) * 1950-06-20 Self-compensating optical system
TWI382897B (zh) * 2008-05-16 2013-01-21 Hon Hai Prec Ind Co Ltd 螺紋模具

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511840A (en) * 1950-06-20 Self-compensating optical system
US2419478A (en) * 1940-10-24 1947-04-22 Hartford Nat Bank & Trust Co Apparatus for indirect X-ray photography
TWI382897B (zh) * 2008-05-16 2013-01-21 Hon Hai Prec Ind Co Ltd 螺紋模具

Also Published As

Publication number Publication date
FR775843A (fr) 1935-01-10
NL39847C (enrdf_load_stackoverflow)

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