FR1164976A - Method of manufacturing a transparent element for a lighting apparatus - Google Patents

Method of manufacturing a transparent element for a lighting apparatus

Info

Publication number
FR1164976A
FR1164976A FR1164976DA FR1164976A FR 1164976 A FR1164976 A FR 1164976A FR 1164976D A FR1164976D A FR 1164976DA FR 1164976 A FR1164976 A FR 1164976A
Authority
FR
France
Prior art keywords
manufacturing
lighting apparatus
transparent element
transparent
lighting
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1164976A publication Critical patent/FR1164976A/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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR1164976D 1956-01-24 1957-01-22 Method of manufacturing a transparent element for a lighting apparatus Expired FR1164976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1164976X 1956-01-24

Publications (1)

Publication Number Publication Date
FR1164976A true FR1164976A (en) 1958-10-16

Family

ID=19870738

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1164976D Expired FR1164976A (en) 1956-01-24 1957-01-22 Method of manufacturing a transparent element for a lighting apparatus

Country Status (1)

Country Link
FR (1) FR1164976A (en)

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