JPS62187238U - - Google Patents

Info

Publication number
JPS62187238U
JPS62187238U JP7426686U JP7426686U JPS62187238U JP S62187238 U JPS62187238 U JP S62187238U JP 7426686 U JP7426686 U JP 7426686U JP 7426686 U JP7426686 U JP 7426686U JP S62187238 U JPS62187238 U JP S62187238U
Authority
JP
Japan
Prior art keywords
light
filter
emitting element
receiving element
dirt
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
JP7426686U
Other languages
Japanese (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 JP7426686U priority Critical patent/JPS62187238U/ja
Publication of JPS62187238U publication Critical patent/JPS62187238U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例によるフイルター汚
れ検知装置を示す回路図、第２図は同フイルター
汚れ検知装置のレンジフードへの取付状態を示す
断面図、第３図は従来のフイルターの汚れを確認
する状況図である。 １……発光素子、２……受光素子、３……フイ
ルター、４……検知回路。 Fig. 1 is a circuit diagram showing a filter dirt detection device according to an embodiment of the present invention, Fig. 2 is a sectional view showing how the filter dirt detection device is installed in a range hood, and Fig. 3 is a conventional filter dirt detection device. It is a situation diagram for checking. 1... Light emitting element, 2... Light receiving element, 3... Filter, 4... Detection circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 発光素子と、この発光素子と対向し受光量に応
じて流れる電流が変化する受光素子と、前記発光
素子と受光素子との光路間に挾設された空気の汚
れをとるフイルターと、前記受光素子の出力信号
により、汚れ検知信号を出力する検知回路とから
なるフイルター汚れ検知装置。 a light-emitting element; a light-receiving element that faces the light-emitting element and through which a current flows depending on the amount of light received; a filter that removes dirt from the air and is interposed between an optical path between the light-emitting element and the light-receiving element; and the light-receiving element. A filter dirt detection device consisting of a detection circuit that outputs a dirt detection signal based on the output signal of the filter.
JP7426686U 1986-05-16 1986-05-16 Pending JPS62187238U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7426686U JPS62187238U (en) 1986-05-16 1986-05-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7426686U JPS62187238U (en) 1986-05-16 1986-05-16

Publications (1)

Publication Number Publication Date
JPS62187238U true JPS62187238U (en) 1987-11-28

Family

ID=30919321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7426686U Pending JPS62187238U (en) 1986-05-16 1986-05-16

Country Status (1)

Country Link
JP (1) JPS62187238U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014055726A (en) * 2012-09-13 2014-03-27 Panasonic Corp Range hood

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014055726A (en) * 2012-09-13 2014-03-27 Panasonic Corp Range hood

Similar Documents

Publication Publication Date Title
JPH0175817U (en)
JPS62187238U (en)
JPS62187237U (en)
JPS6228655U (en)
JPS62168528U (en)
JPS6275454U (en)
JPS6320050U (en)
JPS6033143U (en) ventilation fan
JPS5954811U (en) camera ranging device
JPS5937648U (en) Reflective optical sensor device
JPS6399322U (en)
JPS60188358U (en) Air filter function deterioration warning device
JPS5856954U (en) Dirt detection device for vehicle lamps
JPS58170526U (en) Shaking detection device
JPS6194735U (en)
JPS5934304U (en) Vehicle position detection device
JPS62184404U (en)
JPS6378435U (en)
JPH01180687U (en)
JPS59161740U (en) photoelectric switch
JPH0215754U (en)
JPS6148538U (en)
JPS5933268U (en) semiconductor laser
JPH0396056U (en)
JPS6311997U (en)