GB975125A - Sheets of transparent thermoplastic compositions which diffuse light - Google Patents
Sheets of transparent thermoplastic compositions which diffuse lightInfo
- Publication number
- GB975125A GB975125A GB3832662A GB3832662A GB975125A GB 975125 A GB975125 A GB 975125A GB 3832662 A GB3832662 A GB 3832662A GB 3832662 A GB3832662 A GB 3832662A GB 975125 A GB975125 A GB 975125A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- transparent
- sheets
- diffuse light
- transparent thermoplastic
- 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
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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
975,125. Composite transparent sheets. DOW CHEMICAL CO. Oct. 10, 1962 [Dec. 11, 1961], No. 38326/62. Heading E1J. A transparent sheet comprises alternate longitudinal strips 26 of extrudable transparent styrene polymer, e.g. polystyrene, with or without dyes, and strips 27 of diffuser material, which are also of styrene polymer or methyl methacrylate polymer having a refractive index difference of at least 0À01 from that of the transparent strips and advantageously at least 0À05 and may be transparent, opaque, translucent, reflective or light absorbing, or may transmit light of different colour from the strips 26, the strips 26, 27 having, in crosssection of the sheet, a regular pattern so that the strips define light paths through the sheets. The diffuser strips 27 may be in section, generally rhomboidal, rectangular, arcuate or circular (Fig. 5), and the strips 27 may extend through the thickness of the sheets. Specification 374,148 and U.S.A. Specification 2,808,617 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15852461A | 1961-12-11 | 1961-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB975125A true GB975125A (en) | 1964-11-11 |
Family
ID=22568528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3832662A Expired GB975125A (en) | 1961-12-11 | 1962-10-10 | Sheets of transparent thermoplastic compositions which diffuse light |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB975125A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2086214A1 (en) * | 1970-04-21 | 1971-12-31 | Jorgensen Knud | |
EP0050322A1 (en) * | 1980-10-16 | 1982-04-28 | Dala Invest AB | Glazing of a space opening |
WO2011124448A3 (en) * | 2010-04-09 | 2012-06-14 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigeration device having an illuminating unit |
EP3336424A4 (en) * | 2016-08-08 | 2019-03-06 | Kaneka Corporation | Building material with integrated light-emitting device |
-
1962
- 1962-10-10 GB GB3832662A patent/GB975125A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2086214A1 (en) * | 1970-04-21 | 1971-12-31 | Jorgensen Knud | |
EP0050322A1 (en) * | 1980-10-16 | 1982-04-28 | Dala Invest AB | Glazing of a space opening |
WO2011124448A3 (en) * | 2010-04-09 | 2012-06-14 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigeration device having an illuminating unit |
EP3336424A4 (en) * | 2016-08-08 | 2019-03-06 | Kaneka Corporation | Building material with integrated light-emitting device |
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