GB1499218A - Luminous key switches - Google Patents
Luminous key switchesInfo
- Publication number
- GB1499218A GB1499218A GB4351575A GB4351575A GB1499218A GB 1499218 A GB1499218 A GB 1499218A GB 4351575 A GB4351575 A GB 4351575A GB 4351575 A GB4351575 A GB 4351575A GB 1499218 A GB1499218 A GB 1499218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- cap
- switch
- oct
- switches
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/023—Light-emitting indicators
Landscapes
- Push-Button Switches (AREA)
Abstract
1499218 Illuminated switches DAV 23 Oct 1975 [23 Oct 1974] 43515/75 Heading H1N A switch unit for the instrument panel of an automobile comprises an opaque housing 1 containing a number of switches 2, each switch 2 comprising contacts (not shown) on a slider 11 and on a casing 4 together with a transparent methyl methacrylate plastics light transmitter body 26 interposed between a 1 watt red or amber warning light 17 and the translucent or transparent cap 23 of the press-button key 15, the body 26 having a concave recess 21 to accommodate the top of light 17. The housing 1 contains a 3 watt green panel light 32 and has an internal surface of high reflectivity such as white paint. Warning light 17 shows when the switch is on, the body 26 being shaped to concentrate the light on the cap 23, while the cap can be seen by light from 32 when the switch is off. The cap 23 may be detachable and carry a symbol indicating the function of the switch. In an alternative embodiment (not shown) the cap 23 is replaced by the outer surface of body 26 which is then ground or frosted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7435521A FR2289044A1 (en) | 1974-10-23 | 1974-10-23 | LUMINOUS BUTTON ELECTRIC SWITCH |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1499218A true GB1499218A (en) | 1978-01-25 |
Family
ID=9144377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4351575A Expired GB1499218A (en) | 1974-10-23 | 1975-10-23 | Luminous key switches |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2289044A1 (en) |
GB (1) | GB1499218A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2825833A1 (en) * | 1978-06-13 | 1979-12-20 | Standard Elektrik Lorenz Ag | Signal switch or push-button illuminated by LED - has transparent cover over LED to collimate light for even distribution at outer surface |
GB2158647A (en) * | 1984-04-02 | 1985-11-13 | Philips Nv | Coffee maker |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4758701A (en) * | 1984-03-14 | 1988-07-19 | Allen-Bradley Company | Indicator light assembly for control panel |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB629997A (en) * | 1947-10-10 | 1949-10-03 | Standard Telephones Cables Ltd | Improvements in or relating to switching keys having indicator lamps |
DE1765641A1 (en) * | 1968-06-22 | 1971-09-02 | Bosch Gmbh Robert | Switches, especially for motor vehicles |
-
1974
- 1974-10-23 FR FR7435521A patent/FR2289044A1/en active Granted
-
1975
- 1975-10-23 GB GB4351575A patent/GB1499218A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2825833A1 (en) * | 1978-06-13 | 1979-12-20 | Standard Elektrik Lorenz Ag | Signal switch or push-button illuminated by LED - has transparent cover over LED to collimate light for even distribution at outer surface |
GB2158647A (en) * | 1984-04-02 | 1985-11-13 | Philips Nv | Coffee maker |
Also Published As
Publication number | Publication date |
---|---|
FR2289044A1 (en) | 1976-05-21 |
FR2289044B1 (en) | 1978-12-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |