FR1243727A - Process for producing, by injection under pressure of thermoplastic or thermosetting artificial materials, objects of high quality and precision, such as lenses, prisms, etc., for optical purposes, and device for the application of this process - Google Patents

Process for producing, by injection under pressure of thermoplastic or thermosetting artificial materials, objects of high quality and precision, such as lenses, prisms, etc., for optical purposes, and device for the application of this process

Info

Publication number
FR1243727A
FR1243727A FR6827A FR67006827A FR1243727A FR 1243727 A FR1243727 A FR 1243727A FR 6827 A FR6827 A FR 6827A FR 67006827 A FR67006827 A FR 67006827A FR 1243727 A FR1243727 A FR 1243727A
Authority
FR
France
Prior art keywords
prisms
lenses
thermoplastic
precision
objects
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
FR6827A
Other languages
French (fr)
Inventor
Guido Foschi
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR1243727A publication Critical patent/FR1243727A/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
    • 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
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
FR6827A 1958-12-29 1959-12-29 Process for producing, by injection under pressure of thermoplastic or thermosetting artificial materials, objects of high quality and precision, such as lenses, prisms, etc., for optical purposes, and device for the application of this process Expired FR1243727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1930859 1958-12-29

Publications (1)

Publication Number Publication Date
FR1243727A true FR1243727A (en) 1966-03-25

Family

ID=38652763

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6827A Expired FR1243727A (en) 1958-12-29 1959-12-29 Process for producing, by injection under pressure of thermoplastic or thermosetting artificial materials, objects of high quality and precision, such as lenses, prisms, etc., for optical purposes, and device for the application of this process

Country Status (2)

Country Link
BE (1) BE586094A (en)
FR (1) FR1243727A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061619A2 (en) * 1981-03-31 1982-10-06 Firma Carl Zeiss Mould for the manufacture of pieces of thermoplastic material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061619A2 (en) * 1981-03-31 1982-10-06 Firma Carl Zeiss Mould for the manufacture of pieces of thermoplastic material
EP0061619A3 (en) * 1981-03-31 1983-09-07 Firma Carl Zeiss Mould for the manufacture of pieces of thermoplastic material

Also Published As

Publication number Publication date
BE586094A (en) 1960-04-19

Similar Documents

Publication Publication Date Title
FR1247957A (en) Process for the continuous separation of racemic amino acids
BE576180A (en) A method for improving the light fastness of polyamide materials.
CH378301A (en) Process for the chlorination of aliphatic hydrocarbons
BE589006A (en) Process for the optical brightening of articles made of natural or synthetic materials.
FR1243727A (en) Process for producing, by injection under pressure of thermoplastic or thermosetting artificial materials, objects of high quality and precision, such as lenses, prisms, etc., for optical purposes, and device for the application of this process
BE580074A (en) Process for the manufacture of polymeric hydroxycarbonic acids.
FR1227617A (en) Process for the production of highly polymerized formaldehyde ethers
OA00590A (en) Improved process for the construction of foundations.
JPS5237447A (en) Device for constructing an optical system for a wide-angle door viewer
FR1506206A (en) Optical lens or the like and method as well as device for producing perfect point images
BE611280A (en) Process for obtaining light-dispersing coatings deposited on solid objects and in particular on optical glasses
FR1219344A (en) Advanced method of molding optical elements
FR1215753A (en) Method for bonding plastics coatings to thermoplastics
FR1170917A (en) Precision optical element molding process
FR1240088A (en) Process for polymerization and die-casting of plastic resins, especially acrylic resins
FR1262317A (en) Explosion pressure molding process for plastics
CA596659A (en) Production of optical and ophtalmic lenses from thermosetting resin materials
CA596660A (en) Methods of producing optical and ophtalmic lenses from thermosetting resin materials
FR1305917A (en) Process for obtaining light-dispersing coatings deposited on solid objects and in particular on optical glasses
FR1367928A (en) Process for the polymerization of ethylene under high pressure
BE581759A (en) Process for the polymerization of organopolysiloxane resins.
FR1216989A (en) Method and device for the continuous firing of plastic objects
FR1334117A (en) Method and device for the production of molded articles from cellular plastics
FR883105A (en) Method and apparatus for the preparation of curable molding materials based on artificial resin
FR1326195A (en) Process for making photocopies, product for obtaining the process, and photocopies conforming to those obtained by the present process or similar process