GB683124A - Improvements in or relating to light diffusing screens for use with illuminating means - Google Patents

Improvements in or relating to light diffusing screens for use with illuminating means

Info

Publication number
GB683124A
GB683124A GB15139/49A GB1513949A GB683124A GB 683124 A GB683124 A GB 683124A GB 15139/49 A GB15139/49 A GB 15139/49A GB 1513949 A GB1513949 A GB 1513949A GB 683124 A GB683124 A GB 683124A
Authority
GB
United Kingdom
Prior art keywords
strips
strip
panels
slots
screen
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
GB15139/49A
Inventor
Auguste Harry Brackensey
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.)
FRANCO BRITISH ELECTRICAL CO
Original Assignee
FRANCO BRITISH ELECTRICAL CO
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 FRANCO BRITISH ELECTRICAL CO filed Critical FRANCO BRITISH ELECTRICAL CO
Priority to GB15139/49A priority Critical patent/GB683124A/en
Publication of GB683124A publication Critical patent/GB683124A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • 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)
  • General Engineering & Computer Science (AREA)
  • Finishing Walls (AREA)

Abstract

683,124. Light diffusing screens for lamps. FRANCO-BRITISH ELECTRICAL CO., Ltd. May 16, 1950 [June 7, 1949; Sept. 13, 1949; Sept. 16, 1949; Oct. 14, 1949], Nos. 15139/49, 23642/49, 23942/49 and 26452/49. Class 75(iv) A light-diffusing screen particularly for use in conjunction with luminescent electric discharge tubes has a cellular construction comprising intersecting strips of light transmitting material having panels 1, Fig. 1, rendered translucent, the narrow zones 2 between the panels 1 each having a slot 3 extending from the same longitudinal edge to the central longitudinal axis of the strip, the slots of the two sets A, B, Fig. 5, being entered one into the other. The strips may be of moulded plastic material and the translucent panels 1 formed by producing pyramidal or other projections or depressions, or flutings, on one surface of each strip. The ends of each strip have rabbets 4 which, when strips are joined end to end, are overlapped so that slots 5 therein are aligned, the joint being completed when a transverse strip is placed in the slot 5. Adhesive may, if desired, be applied between the rabbets 4. The strip may be of arcuate form for building a screen of semi-cylindrical form. Alternatively a screen may be built of strips as shown in Fig. 1 in engagement with strips having inclined slots. Reference has been directed by the Comptroller to Specifications 669,993 and 681,706.
GB15139/49A 1949-06-07 1949-06-07 Improvements in or relating to light diffusing screens for use with illuminating means Expired GB683124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15139/49A GB683124A (en) 1949-06-07 1949-06-07 Improvements in or relating to light diffusing screens for use with illuminating means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15139/49A GB683124A (en) 1949-06-07 1949-06-07 Improvements in or relating to light diffusing screens for use with illuminating means

Publications (1)

Publication Number Publication Date
GB683124A true GB683124A (en) 1952-11-26

Family

ID=10053731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15139/49A Expired GB683124A (en) 1949-06-07 1949-06-07 Improvements in or relating to light diffusing screens for use with illuminating means

Country Status (1)

Country Link
GB (1) GB683124A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102834168A (en) * 2010-04-09 2012-12-19 迪特尔·沃尔兹 Spray system and method for spraying a secondary fluid into a primary fluid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102834168A (en) * 2010-04-09 2012-12-19 迪特尔·沃尔兹 Spray system and method for spraying a secondary fluid into a primary fluid

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