GB327630A - Improvements in and relating to prismatic glassware - Google Patents

Improvements in and relating to prismatic glassware

Info

Publication number
GB327630A
GB327630A GB16912/29A GB1691229A GB327630A GB 327630 A GB327630 A GB 327630A GB 16912/29 A GB16912/29 A GB 16912/29A GB 1691229 A GB1691229 A GB 1691229A GB 327630 A GB327630 A GB 327630A
Authority
GB
United Kingdom
Prior art keywords
zone
prisms
light
holophane
rectilinear
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
GB16912/29A
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.)
Holophane SAS
Original Assignee
Holophane SAS
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 Holophane SAS filed Critical Holophane SAS
Priority to GB16912/29A priority Critical patent/GB327630A/en
Publication of GB327630A publication Critical patent/GB327630A/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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Measuring Cells (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

327,630. Holophane, Ltd., (Soc. Anon. Francaise Holophane). June 1, 1929. Lamps forming a line of light.-A column of light is obtained by arranging end to end a number of tubular prismatic shades, the light sources S, Fig. 4, being arranged centrally of each zone of doubly refracting external prisms 2a, and each zone of totally reflecting internal prisms 3a reflecting light rays from two adjacent light sources. In the form of ramp shown in Fig. 8 each zone of doubly refracting external prisms 2 is separated by a zone of rectilinear totally reflecting internal prisms arranged transversely and rectilinear external prisms 8 arranged longitudinally. The ramp rests with its open side on any opaque seating, and the faces 5, 6 are made opaque or diffusing.
GB16912/29A 1929-06-01 1929-06-01 Improvements in and relating to prismatic glassware Expired GB327630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16912/29A GB327630A (en) 1929-06-01 1929-06-01 Improvements in and relating to prismatic glassware

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16912/29A GB327630A (en) 1929-06-01 1929-06-01 Improvements in and relating to prismatic glassware

Publications (1)

Publication Number Publication Date
GB327630A true GB327630A (en) 1930-04-10

Family

ID=10085912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16912/29A Expired GB327630A (en) 1929-06-01 1929-06-01 Improvements in and relating to prismatic glassware

Country Status (1)

Country Link
GB (1) GB327630A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160192A (en) * 1988-03-16 1992-11-03 Asahi Kogaku Kogyo Kabushiki Kaisha Illuminating instrument
US5949346A (en) * 1995-06-07 1999-09-07 Toyoda Gosei Co., Ltd. Light-driven display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160192A (en) * 1988-03-16 1992-11-03 Asahi Kogaku Kogyo Kabushiki Kaisha Illuminating instrument
US5949346A (en) * 1995-06-07 1999-09-07 Toyoda Gosei Co., Ltd. Light-driven display device

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