CA1145870A - Cadran lumineux de telephone - Google Patents

Cadran lumineux de telephone

Info

Publication number
CA1145870A
CA1145870A CA000377781A CA377781A CA1145870A CA 1145870 A CA1145870 A CA 1145870A CA 000377781 A CA000377781 A CA 000377781A CA 377781 A CA377781 A CA 377781A CA 1145870 A CA1145870 A CA 1145870A
Authority
CA
Canada
Prior art keywords
light
guide plate
apertures
dial
pushbutton
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
CA000377781A
Other languages
English (en)
Inventor
Gerd Kuhfus
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.)
Nortel Networks Corp
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA000377781A priority Critical patent/CA1145870A/fr
Application granted granted Critical
Publication of CA1145870A publication Critical patent/CA1145870A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Push-Button Switches (AREA)
CA000377781A 1981-05-19 1981-05-19 Cadran lumineux de telephone Expired CA1145870A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000377781A CA1145870A (fr) 1981-05-19 1981-05-19 Cadran lumineux de telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000377781A CA1145870A (fr) 1981-05-19 1981-05-19 Cadran lumineux de telephone

Publications (1)

Publication Number Publication Date
CA1145870A true CA1145870A (fr) 1983-05-03

Family

ID=4119975

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000377781A Expired CA1145870A (fr) 1981-05-19 1981-05-19 Cadran lumineux de telephone

Country Status (1)

Country Link
CA (1) CA1145870A (fr)

Similar Documents

Publication Publication Date Title
US4349705A (en) Lighted telephone dial
US10942581B2 (en) Illuminated keyboard
EP0552497B1 (fr) Commutateur éclairé à membrane, de dimension réduite et avec éclairage amélioré
US8188397B2 (en) Sheet switch module
US5045656A (en) Switch provided with indicator
US7589292B2 (en) Keypad with light guide layer, keypad assembly and portable terminal
US5924785A (en) Light source arrangement
KR101138321B1 (ko) 발광 시트 모듈
JP4779065B2 (ja) ディスプレイパネルアセンブリ
US20120139843A1 (en) Illuminated keyboard
US20080143560A1 (en) Lightpipe for illuminating keys of a keyboard
WO1998050931A1 (fr) Eclairage direct d'un clavier par l'arriere
US7026563B2 (en) Switch-device sheet
GB2065373A (en) Illuminated key-board switch unit
CN212783186U (zh) 发光键盘与其背光模块
US6263070B1 (en) Telephone having an internally lit display
WO2007132781A1 (fr) Dispositif d'entrée pourvu d'une fonction d'éclairage
US4551598A (en) Illuminated membrane switch
CA2061565C (fr) Commutateur de clavier plat
KR100443097B1 (ko) 선 형상 조명 장치
CA1145870A (fr) Cadran lumineux de telephone
JPH11345532A (ja) 照光式押釦スイッチ装置
CN219512995U (zh) 发光按键结构
JPH09180574A (ja) 照光型スイッチ機構
JPH07118244B2 (ja) シ−ソ−スイツチ

Legal Events

Date Code Title Description
MKEX Expiry