JPS6334402U - - Google Patents

Info

Publication number
JPS6334402U
JPS6334402U JP12992786U JP12992786U JPS6334402U JP S6334402 U JPS6334402 U JP S6334402U JP 12992786 U JP12992786 U JP 12992786U JP 12992786 U JP12992786 U JP 12992786U JP S6334402 U JPS6334402 U JP S6334402U
Authority
JP
Japan
Prior art keywords
air
atmospheric
chamber
compression chamber
piston
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.)
Granted
Application number
JP12992786U
Other languages
Japanese (ja)
Other versions
JPH0335285Y2 (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 JP1986129927U priority Critical patent/JPH0335285Y2/ja
Publication of JPS6334402U publication Critical patent/JPS6334402U/ja
Application granted granted Critical
Publication of JPH0335285Y2 publication Critical patent/JPH0335285Y2/ja
Expired legal-status Critical Current

Links

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  • Eye Examination Apparatus (AREA)

Description

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

第１図は、この考案の一実施例を示す非接触式
眼圧計の気流吹き付け装置の断面図である。第２
図は、第１図に示した気流吹き付け装置他の作動
状態を示す断面図である。第３図は、従来の非接
触式眼圧計の気流吹き付け装置の概略説明図であ
る。 １０……シリンダ、１１……ピストン、１１ａ
……端壁、１１ｂ……弁孔、１２……圧縮室、１
３……大気吸込室、１４……リード弁（第１一方
向弁）、１５……リニア・ＤＣモータ（リニア・
アクチユエータ）、１９……エア吸込口、２２…
…リード弁（第２一方向弁）、２５……ノズル、
２６……被検眼。 FIG. 1 is a sectional view of an airflow blowing device for a non-contact tonometer showing an embodiment of this invention. Second
The figure is a cross-sectional view showing the operating state of the airflow blowing device shown in FIG. 1 and others. FIG. 3 is a schematic explanatory diagram of a conventional airflow blowing device for a non-contact tonometer. 10...Cylinder, 11...Piston, 11a
... End wall, 11b ... Valve hole, 12 ... Compression chamber, 1
3...Atmospheric suction chamber, 14...Reed valve (first one-way valve), 15...Linear/DC motor (linear/DC motor)
actuator), 19... air suction port, 22...
... Reed valve (second one-way valve), 25 ... Nozzle,
26... Eye to be examined.

Claims (1)

【実用新案登録請求の範囲】 シリンダ内にピストンを配設して、前記シリン
ダ内を大気吸込室と圧縮室に区画すると共に、前
記ピストンを圧縮室側に進出させて前記圧縮室内
の空気を圧縮させることにより、該圧縮空気を前
記圧縮室に連通するノズルから検眼位置に向けて
吹き付ける様にした非接触式眼圧計の気流吹き付
け装置において、 第１一方向弁を前記ピストンに前記大気吸込室
側から圧縮室側にのみ空気を流すことが可能に装
着すると共に、前記大気吸込室に大気を吸い込む
エア吸込口を設けて、大気側から前記大気吸込室
側にのみ空気を流すことが可能な第２一方向弁を
前記エア吸込口に設けたことを特徴とする非接触
式眼圧計の気流吹き付け装置。[Claims for Utility Model Registration] A piston is disposed in a cylinder to divide the inside of the cylinder into an atmospheric suction chamber and a compression chamber, and the piston is advanced toward the compression chamber to compress the air in the compression chamber. In the airflow spraying device for a non-contact tonometer, the compressed air is sprayed from a nozzle communicating with the compression chamber toward an eye examination position, by connecting a first one-way valve to the piston on the side of the atmospheric suction chamber. At the same time, an air suction port for sucking atmospheric air is provided in the atmospheric suction chamber so that air can flow only from the atmospheric side to the atmospheric suction chamber side. 2. An airflow blowing device for a non-contact tonometer, characterized in that a one-way valve is provided at the air suction port.
JP1986129927U 1986-08-26 1986-08-26 Expired JPH0335285Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986129927U JPH0335285Y2 (en) 1986-08-26 1986-08-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986129927U JPH0335285Y2 (en) 1986-08-26 1986-08-26

Publications (2)

Publication Number Publication Date
JPS6334402U true JPS6334402U (en) 1988-03-05
JPH0335285Y2 JPH0335285Y2 (en) 1991-07-26

Family

ID=31026943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986129927U Expired JPH0335285Y2 (en) 1986-08-26 1986-08-26

Country Status (1)

Country Link
JP (1) JPH0335285Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008237516A (en) * 2007-03-27 2008-10-09 Topcon Corp Air puff device for non-contact tonometer
JP2008272258A (en) * 2007-04-27 2008-11-13 Nidek Co Ltd Contactless ophthalmotonometer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61321A (en) * 1984-06-12 1986-01-06 株式会社トプコン Non-contact tonometer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61321A (en) * 1984-06-12 1986-01-06 株式会社トプコン Non-contact tonometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008237516A (en) * 2007-03-27 2008-10-09 Topcon Corp Air puff device for non-contact tonometer
JP2008272258A (en) * 2007-04-27 2008-11-13 Nidek Co Ltd Contactless ophthalmotonometer

Also Published As

Publication number Publication date
JPH0335285Y2 (en) 1991-07-26

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