GB708203A - Improvements in dials having a dial plate of transparent material, more particularlyfor use in radio receivers - Google Patents
Improvements in dials having a dial plate of transparent material, more particularlyfor use in radio receiversInfo
- Publication number
- GB708203A GB708203A GB3384/52A GB338452A GB708203A GB 708203 A GB708203 A GB 708203A GB 3384/52 A GB3384/52 A GB 3384/52A GB 338452 A GB338452 A GB 338452A GB 708203 A GB708203 A GB 708203A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- dial
- lamp
- piece
- dial plate
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/02—Indicating arrangements
- H03J1/04—Indicating arrangements with optical indicating means
- H03J1/044—Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Details Of Measuring Devices (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
708,203. Indicating-apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 8, 1952 [Feb. 12, 1951], No. 3384/52. Class 106 (4). [Also in Group XL(c)] Indicating-apparatus having a dial plate 15 of poorly heat-resistant, transparent material illuminated by laterally incident light from one or more. incandescent lamps has a lightconducting connecting piece of transparent, better heat - resistant material 17 between the dial and lamp or lamps 11. As shown in Fig. 2, between a vertical dial plate 15, for example, of polystyrene, and an incandescent lamp 11, a trapezoidal connecting piece 17 of transparent sheet material is arranged at right angles to the plate 15, the material of the piece 17 weakening at a higher temperature than polystyrene, being, for example, polymethylmethacrylate or glass. The piece 17 engages the dial plate 15 along a surface 19 at approximately 45 degrees to the plate 15 and may be secured by a transparent adhesive. This arrangement allows air to flow freely round the lamp for cooling. Alternatively, the plate 17 or two plates may be arranged in line with the plate 15. The piece or pieces 17 may be coloured to give a colour effect to the dial 15. In another embodiment, Fig. 3, the lamp 11 is arranged in a cupshaped cavity in a rod 21 which fits into a circular aperture in a dial plate 23 and has a reentrant surface shaped to reflect light at rightangles.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL159216A NL82025C (en) | 1951-02-12 | 1951-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB708203A true GB708203A (en) | 1954-04-28 |
Family
ID=41119335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3384/52A Expired GB708203A (en) | 1951-02-12 | 1952-02-08 | Improvements in dials having a dial plate of transparent material, more particularlyfor use in radio receivers |
Country Status (5)
Country | Link |
---|---|
US (1) | US2770712A (en) |
DE (1) | DE944739C (en) |
FR (1) | FR1050731A (en) |
GB (1) | GB708203A (en) |
NL (2) | NL82025C (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2854509A (en) * | 1951-08-04 | 1958-09-30 | Alden Products Co | Facsimile optical scanning apparatus |
US2868960A (en) * | 1956-02-07 | 1959-01-13 | Arthur V Appel | Instrument dial illuminator |
DE1290996B (en) * | 1958-06-27 | 1969-03-20 | Siemens Ag | Illuminable display device for devices for electrical communications and measurement technology |
DE1173267B (en) * | 1961-08-14 | 1964-07-02 | M K Juchheim Thermometerfabrik | Device for photoelectric actuation of limit value contacts and for illuminating the display means on built-in pointer instruments |
US3148834A (en) * | 1961-11-22 | 1964-09-15 | Sperry Rand Corp | Illumination system |
US3248554A (en) * | 1961-12-13 | 1966-04-26 | Sperry Rand Corp | Uniform intensity illumination system |
US3761704A (en) * | 1972-01-06 | 1973-09-25 | Matusushita Electric Ind Co Lt | Dial illuminating device |
GB1463061A (en) * | 1973-05-22 | 1977-02-02 | Lucas Electrical Ltd | Illuminable element |
SE7413182L (en) * | 1974-10-18 | 1976-04-20 | Teleplan Ab | INDICATOR |
JPS5754126Y2 (en) * | 1975-01-27 | 1982-11-24 | ||
JPS5194684U (en) * | 1975-01-27 | 1976-07-29 | ||
JPS555992Y2 (en) * | 1975-02-18 | 1980-02-12 | ||
US4085436A (en) * | 1976-10-14 | 1978-04-18 | Allen Weiss | Ring light converter for electronic flash units |
US4447118A (en) * | 1981-09-21 | 1984-05-08 | The Boeing Company | Optical information transfer system |
US4564286A (en) * | 1983-06-09 | 1986-01-14 | Xerox Corporation | Illumination device |
JP2557409Y2 (en) * | 1991-05-07 | 1997-12-10 | パイオニア株式会社 | Grill lighting structure |
JPH08321918A (en) * | 1995-03-22 | 1996-12-03 | Canon Inc | Light transmission body, lighting fixture having the light transmission body and information processor having the lighting fixture |
JP2006252794A (en) * | 2005-03-08 | 2006-09-21 | Sumitomo Wiring Syst Ltd | Light guide body and lighting system provided with the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1714242A (en) * | 1927-04-19 | 1929-05-21 | Paramount Famous Lasky Corp | Reflector arc |
US2071284A (en) * | 1935-10-23 | 1937-02-16 | Bendix Radio Corp | Indicating device |
US2150836A (en) * | 1937-02-27 | 1939-03-14 | Weston Electrical Instr Corp | Electrical measuring instrument |
GB595003A (en) * | 1944-02-02 | 1947-11-25 | Ray Simpson | Improvements in means for illuminating indicating instruments |
US2413848A (en) * | 1944-02-02 | 1947-01-07 | Simpson Ray | Illuminated instrument |
US2560117A (en) * | 1947-01-31 | 1951-07-10 | Robert W Mallary | Sign |
US2611018A (en) * | 1949-06-24 | 1952-09-16 | Westinghouse Brake & Signal | Mimic diagram panel |
-
0
- NL NL7309453.A patent/NL159216B/en unknown
-
1951
- 1951-02-12 NL NL159216A patent/NL82025C/xx active
-
1952
- 1952-01-09 US US265683A patent/US2770712A/en not_active Expired - Lifetime
- 1952-02-08 GB GB3384/52A patent/GB708203A/en not_active Expired
- 1952-02-09 DE DEN5071A patent/DE944739C/en not_active Expired
- 1952-02-11 FR FR1050731D patent/FR1050731A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2770712A (en) | 1956-11-13 |
NL82025C (en) | 1956-07-16 |
NL159216B (en) | |
DE944739C (en) | 1956-07-12 |
FR1050731A (en) | 1954-01-11 |
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