JPH01123801U - - Google Patents

Info

Publication number
JPH01123801U
JPH01123801U JP1627588U JP1627588U JPH01123801U JP H01123801 U JPH01123801 U JP H01123801U JP 1627588 U JP1627588 U JP 1627588U JP 1627588 U JP1627588 U JP 1627588U JP H01123801 U JPH01123801 U JP H01123801U
Authority
JP
Japan
Prior art keywords
light source
source lamp
shielding tube
diffusion filter
inner peripheral
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.)
Pending
Application number
JP1627588U
Other languages
English (en)
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 JP1627588U priority Critical patent/JPH01123801U/ja
Publication of JPH01123801U publication Critical patent/JPH01123801U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Description

【図面の簡単な説明】
図はこの考案の実施例を示し、第1図はこの考
案の第1実施例の断面図、第2図は同第2実施例
の断面図、第3図は同第3実施例の断面図、第4
図はこの考案を用いた場合の指向曲線を表わす説
明図、第5図は従来の光源ランプの指向曲線を表
わす説明図である。 なお図中1は光源ランプ、2は遮へい筒、2a
は反射内周面、3は拡散フイルター、3aは外周
側面、4は遮へい体、4aは遮へい孔である。

Claims (1)

    【実用新案登録請求の範囲】
  1. 光源ランプの少なくとも光源の側面を被う、反
    射内周面を有する遮へい筒を光源ランプに被せ、
    この光源ランプの前方の遮へい筒の一端を塞ぐ拡
    散フイルターを設け、この拡散フイルターの外面
    を上記遮へい筒の当該一端面から前方へ突出させ
    たことを特徴とする広指向特性光学フイルター装
    置。
JP1627588U 1988-02-12 1988-02-12 Pending JPH01123801U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1627588U JPH01123801U (ja) 1988-02-12 1988-02-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1627588U JPH01123801U (ja) 1988-02-12 1988-02-12

Publications (1)

Publication Number Publication Date
JPH01123801U true JPH01123801U (ja) 1989-08-23

Family

ID=31229062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1627588U Pending JPH01123801U (ja) 1988-02-12 1988-02-12

Country Status (1)

Country Link
JP (1) JPH01123801U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127180B2 (ja) * 1980-02-20 1986-06-24 Denki Kagaku Kogyo Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127180B2 (ja) * 1980-02-20 1986-06-24 Denki Kagaku Kogyo Kk

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