JPS5821397B2 - トンネルチヨウコウホウシキ - Google Patents

トンネルチヨウコウホウシキ

Info

Publication number
JPS5821397B2
JPS5821397B2 JP50029322A JP2932275A JPS5821397B2 JP S5821397 B2 JPS5821397 B2 JP S5821397B2 JP 50029322 A JP50029322 A JP 50029322A JP 2932275 A JP2932275 A JP 2932275A JP S5821397 B2 JPS5821397 B2 JP S5821397B2
Authority
JP
Japan
Prior art keywords
tunnel
light
light receiver
brightness
receiver
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
JP50029322A
Other languages
English (en)
Japanese (ja)
Other versions
JPS51103682A (enrdf_load_stackoverflow
Inventor
三谷正孝
東方眞
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP50029322A priority Critical patent/JPS5821397B2/ja
Publication of JPS51103682A publication Critical patent/JPS51103682A/ja
Publication of JPS5821397B2 publication Critical patent/JPS5821397B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
JP50029322A 1975-03-10 1975-03-10 トンネルチヨウコウホウシキ Expired JPS5821397B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50029322A JPS5821397B2 (ja) 1975-03-10 1975-03-10 トンネルチヨウコウホウシキ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50029322A JPS5821397B2 (ja) 1975-03-10 1975-03-10 トンネルチヨウコウホウシキ

Publications (2)

Publication Number Publication Date
JPS51103682A JPS51103682A (enrdf_load_stackoverflow) 1976-09-13
JPS5821397B2 true JPS5821397B2 (ja) 1983-04-28

Family

ID=12272977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50029322A Expired JPS5821397B2 (ja) 1975-03-10 1975-03-10 トンネルチヨウコウホウシキ

Country Status (1)

Country Link
JP (1) JPS5821397B2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0679183U (ja) * 1993-04-23 1994-11-04 日立電子株式会社 屋外筐体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0679183U (ja) * 1993-04-23 1994-11-04 日立電子株式会社 屋外筐体

Also Published As

Publication number Publication date
JPS51103682A (enrdf_load_stackoverflow) 1976-09-13

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