GB684854A - An improved method of obtaining reproductions of rulings such as diffraction gratings - Google Patents

An improved method of obtaining reproductions of rulings such as diffraction gratings

Info

Publication number
GB684854A
GB684854A GB536150A GB536150A GB684854A GB 684854 A GB684854 A GB 684854A GB 536150 A GB536150 A GB 536150A GB 536150 A GB536150 A GB 536150A GB 684854 A GB684854 A GB 684854A
Authority
GB
United Kingdom
Prior art keywords
rulings
diffraction gratings
improved method
grating
reproductions
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
GB536150A
Inventor
Thomas Ralph Merton
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 NL7414141.A priority Critical patent/NL159537B/en
Priority to NL84409D priority patent/NL84409C/xx
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB536150A priority patent/GB684854A/en
Publication of GB684854A publication Critical patent/GB684854A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1847—Manufacturing methods
    • G02B5/1852—Manufacturing methods using mechanical means, e.g. ruling with diamond tool, 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
    • B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
    • C09D101/02—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
    • C09D101/08—Cellulose derivatives
    • C09D101/16—Esters of inorganic acids
    • C09D101/18—Cellulose nitrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D189/00—Coating compositions based on proteins; Coating compositions based on derivatives thereof
    • C09D189/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C09D189/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

684,854. Diffraction gratings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 21, 1951 [March 2, 1950], No. 5361/50. Drawings to Specification. Class 97 (i). [Also in Group V] A diffraction grating comprises a sheet of gelatine into the surface of which the rulings of the grating have been impressed (see Group V). The sheet may be mounted on a glass support and may be used thus as a transmission grating, or may be aluminized or otherwise metallized to make a reflection grating.
GB536150A 1950-03-02 1950-03-02 An improved method of obtaining reproductions of rulings such as diffraction gratings Expired GB684854A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL7414141.A NL159537B (en) 1950-03-02 BATTERY CELL OF WHICH THE ACTIVE POSITIVE MASS CONTAINS SILVER CHROMATE.
NL84409D NL84409C (en) 1950-03-02
GB536150A GB684854A (en) 1950-03-02 1950-03-02 An improved method of obtaining reproductions of rulings such as diffraction gratings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB536150A GB684854A (en) 1950-03-02 1950-03-02 An improved method of obtaining reproductions of rulings such as diffraction gratings

Publications (1)

Publication Number Publication Date
GB684854A true GB684854A (en) 1952-12-24

Family

ID=9794661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB536150A Expired GB684854A (en) 1950-03-02 1950-03-02 An improved method of obtaining reproductions of rulings such as diffraction gratings

Country Status (2)

Country Link
GB (1) GB684854A (en)
NL (2) NL159537B (en)

Also Published As

Publication number Publication date
NL84409C (en)
NL159537B (en)

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