NL84409C - - Google Patents

Info

Publication number
NL84409C
NL84409C NL84409DA NL84409C NL 84409 C NL84409 C NL 84409C NL 84409D A NL84409D A NL 84409DA NL 84409 C NL84409 C NL 84409C
Authority
NL
Netherlands
Prior art keywords
grating
sheet
group
diffraction
rulings
Prior art date
Application number
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.)
Publication of NL84409C publication Critical patent/NL84409C/xx

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.
NL84409D 1950-03-02 NL84409C (en)

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
NL84409C true NL84409C (en)

Family

ID=9794661

Family Applications (2)

Application Number Title Priority Date Filing Date
NL84409D NL84409C (en) 1950-03-02
NL7414141.A NL159537B (en) 1950-03-02 BATTERY CELL OF WHICH THE ACTIVE POSITIVE MASS CONTAINS SILVER CHROMATE.

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL7414141.A NL159537B (en) 1950-03-02 BATTERY CELL OF WHICH THE ACTIVE POSITIVE MASS CONTAINS SILVER CHROMATE.

Country Status (2)

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

Also Published As

Publication number Publication date
GB684854A (en) 1952-12-24
NL159537B (en)

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