GB1249626A - Improvements in or relating to mirrors and their manufacture - Google Patents

Improvements in or relating to mirrors and their manufacture

Info

Publication number
GB1249626A
GB1249626A GB4783767A GB4783767A GB1249626A GB 1249626 A GB1249626 A GB 1249626A GB 4783767 A GB4783767 A GB 4783767A GB 4783767 A GB4783767 A GB 4783767A GB 1249626 A GB1249626 A GB 1249626A
Authority
GB
United Kingdom
Prior art keywords
forming
coating
chamber
mirror
mirrors
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
GB4783767A
Inventor
John Douglas Snow
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.)
Rotherham & Sons Ltd
Original Assignee
Rotherham & Sons Ltd
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 Rotherham & Sons Ltd filed Critical Rotherham & Sons Ltd
Priority to GB4783767A priority Critical patent/GB1249626A/en
Publication of GB1249626A publication Critical patent/GB1249626A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14Metallic material, boron or silicon
    • C23C14/20Metallic material, boron or silicon on organic substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

1,249,626. Mirrors. ROTHERHAM & SONS Ltd. Jan. 17, 1969 [Oct. 20, 1967], No. 47837/67. Heading C7F. A mirror is made by forming a transparent plastics body having surfaces defining the front and back surfaces of the mirror, the said surfaces being formed to have a required optical surface finish and inter-relationship thereby to avoid a separate surface finishing operation after the forming of the body, transferring the body to a vacuum-deposition chamber with minimum delay and handling between forming the body and placing it in said chamber, thereby to avoid the need for cleaning the surfaces of the body, introducing argon gas into the chamber to prevent contamination of the surfaces of the body, and then vacuumdepositing a reflective metallic layer on to the back surface of the body. The plastics may be polymethylmethacrylate or polystyrene, and may be destaticized in O 3 prior to the coating step. The coating may be of Al; the coated body may be annealed at 70‹ -90‹C. for 3 to 7 hours, and the coating may be protected by a resin-based lacquer pigmented with Al oxides.
GB4783767A 1967-10-20 1967-10-20 Improvements in or relating to mirrors and their manufacture Expired GB1249626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4783767A GB1249626A (en) 1967-10-20 1967-10-20 Improvements in or relating to mirrors and their manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4783767A GB1249626A (en) 1967-10-20 1967-10-20 Improvements in or relating to mirrors and their manufacture

Publications (1)

Publication Number Publication Date
GB1249626A true GB1249626A (en) 1971-10-13

Family

ID=10446424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4783767A Expired GB1249626A (en) 1967-10-20 1967-10-20 Improvements in or relating to mirrors and their manufacture

Country Status (1)

Country Link
GB (1) GB1249626A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2124558A1 (en) * 1971-02-09 1972-09-22 Ici Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2124558A1 (en) * 1971-02-09 1972-09-22 Ici Ltd

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