JPH0548517B2 - - Google Patents

Info

Publication number
JPH0548517B2
JPH0548517B2 JP59106924A JP10692484A JPH0548517B2 JP H0548517 B2 JPH0548517 B2 JP H0548517B2 JP 59106924 A JP59106924 A JP 59106924A JP 10692484 A JP10692484 A JP 10692484A JP H0548517 B2 JPH0548517 B2 JP H0548517B2
Authority
JP
Japan
Prior art keywords
circuit
capacitor
constant voltage
constant
light
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 - Lifetime
Application number
JP59106924A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60250231A (ja
Inventor
Taketsugu Wada
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 JP10692484A priority Critical patent/JPS60250231A/ja
Publication of JPS60250231A publication Critical patent/JPS60250231A/ja
Publication of JPH0548517B2 publication Critical patent/JPH0548517B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Burglar Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
JP10692484A 1984-05-25 1984-05-25 減光式分離型煙感知器 Granted JPS60250231A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10692484A JPS60250231A (ja) 1984-05-25 1984-05-25 減光式分離型煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10692484A JPS60250231A (ja) 1984-05-25 1984-05-25 減光式分離型煙感知器

Publications (2)

Publication Number Publication Date
JPS60250231A JPS60250231A (ja) 1985-12-10
JPH0548517B2 true JPH0548517B2 (enrdf_load_stackoverflow) 1993-07-21

Family

ID=14445963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10692484A Granted JPS60250231A (ja) 1984-05-25 1984-05-25 減光式分離型煙感知器

Country Status (1)

Country Link
JP (1) JPS60250231A (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929273Y2 (ja) * 1980-02-29 1984-08-22 ホーチキ株式会社 分離型減光式煙感知器
JPS60192092U (ja) * 1984-05-25 1985-12-20 松下電工株式会社 減光式煙感知器

Also Published As

Publication number Publication date
JPS60250231A (ja) 1985-12-10

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term