JPH0418075Y2 - - Google Patents

Info

Publication number
JPH0418075Y2
JPH0418075Y2 JP1988111385U JP11138588U JPH0418075Y2 JP H0418075 Y2 JPH0418075 Y2 JP H0418075Y2 JP 1988111385 U JP1988111385 U JP 1988111385U JP 11138588 U JP11138588 U JP 11138588U JP H0418075 Y2 JPH0418075 Y2 JP H0418075Y2
Authority
JP
Japan
Prior art keywords
mirror
parabolic mirror
detection element
optical axis
parabolic
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
JP1988111385U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6446890U (enrdf_load_stackoverflow
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 JP1988111385U priority Critical patent/JPH0418075Y2/ja
Publication of JPS6446890U publication Critical patent/JPS6446890U/ja
Application granted granted Critical
Publication of JPH0418075Y2 publication Critical patent/JPH0418075Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
JP1988111385U 1988-08-25 1988-08-25 Expired JPH0418075Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988111385U JPH0418075Y2 (enrdf_load_stackoverflow) 1988-08-25 1988-08-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988111385U JPH0418075Y2 (enrdf_load_stackoverflow) 1988-08-25 1988-08-25

Publications (2)

Publication Number Publication Date
JPS6446890U JPS6446890U (enrdf_load_stackoverflow) 1989-03-23
JPH0418075Y2 true JPH0418075Y2 (enrdf_load_stackoverflow) 1992-04-22

Family

ID=31349385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988111385U Expired JPH0418075Y2 (enrdf_load_stackoverflow) 1988-08-25 1988-08-25

Country Status (1)

Country Link
JP (1) JPH0418075Y2 (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54179185U (enrdf_load_stackoverflow) * 1978-06-07 1979-12-18
US4258255A (en) * 1979-04-23 1981-03-24 American District Telegraph Company Infrared intrusion detection system

Also Published As

Publication number Publication date
JPS6446890U (enrdf_load_stackoverflow) 1989-03-23

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