JPH01142155U - - Google Patents

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Publication number
JPH01142155U
JPH01142155U JP3833988U JP3833988U JPH01142155U JP H01142155 U JPH01142155 U JP H01142155U JP 3833988 U JP3833988 U JP 3833988U JP 3833988 U JP3833988 U JP 3833988U JP H01142155 U JPH01142155 U JP H01142155U
Authority
JP
Japan
Prior art keywords
light
emitting
tube
emitting part
per unit
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.)
Granted
Application number
JP3833988U
Other languages
English (en)
Other versions
JPH0446370Y2 (ja
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 filed Critical
Priority to JP3833988U priority Critical patent/JPH0446370Y2/ja
Publication of JPH01142155U publication Critical patent/JPH01142155U/ja
Application granted granted Critical
Publication of JPH0446370Y2 publication Critical patent/JPH0446370Y2/ja
Expired legal-status Critical Current

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Description

【図面の簡単な説明】
第１図は本考案の一実施例の概略を示す説明図
である。 １０……ガラス製の管型封体、２０……縮径部
、３０……フイラメント、３１……発光部、３２
……非発光部、４０……リード、５１……発光部
の周囲空間、５２……非発光部の周囲空間。

Claims (1)

  1. 【実用新案登録請求の範囲】 １本のワイアが巻回されて発光部と非発光部と
    が交互に位置するよう形成されたフイラメントが
    ガラス製の管型封体の管軸に沿つて伸びるよう配
    設され、前記非発光部の少なくとも２点が前記ガ
    ラス製の管型封体に形成した縮径部により保持さ
    れてなる構造の管型白熱電球において、 前記発光部が密巻のコイルからなり、前記非発
    光部が疎巻のコイルからなり、 前記発光部の単位長さ当りの巻数をＡ、前記非
    発光部の単位長さ当りの巻数をＢとするとき、両
    者の比Ｂ／Ａの値が０．５〜０．７５であること
    を特徴とする管型白熱電球。
JP3833988U 1988-03-25 1988-03-25 Expired JPH0446370Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3833988U JPH0446370Y2 (ja) 1988-03-25 1988-03-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3833988U JPH0446370Y2 (ja) 1988-03-25 1988-03-25

Publications (2)

Publication Number Publication Date
JPH01142155U true JPH01142155U (ja) 1989-09-28
JPH0446370Y2 JPH0446370Y2 (ja) 1992-10-30

Family

ID=31264894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3833988U Expired JPH0446370Y2 (ja) 1988-03-25 1988-03-25

Country Status (1)

Country Link
JP (1) JPH0446370Y2 (ja)

Also Published As

Publication number Publication date
JPH0446370Y2 (ja) 1992-10-30

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