JPS5210687A - X-ray iris device - Google Patents

X-ray iris device

Info

Publication number
JPS5210687A
JPS5210687A JP50086177A JP8617775A JPS5210687A JP S5210687 A JPS5210687 A JP S5210687A JP 50086177 A JP50086177 A JP 50086177A JP 8617775 A JP8617775 A JP 8617775A JP S5210687 A JPS5210687 A JP S5210687A
Authority
JP
Japan
Prior art keywords
iris device
ray iris
iris
pair
ray
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
JP50086177A
Other languages
Japanese (ja)
Other versions
JPS5546040B2 (en
Inventor
Chuji Tomita
Tsukasa Momoi
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.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
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 Hitachi Medical Corp filed Critical Hitachi Medical Corp
Priority to JP50086177A priority Critical patent/JPS5210687A/en
Publication of JPS5210687A publication Critical patent/JPS5210687A/en
Publication of JPS5546040B2 publication Critical patent/JPS5546040B2/ja
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/06—Diaphragms

Abstract

PURPOSE:To obtain a device having a simple and economical mechanism, wherein the shape of an iris is variable by only exchanging and securing a pair of cylindrical drums and the size of the iris is continuously varied with no step by rotating and driving this pair of drums.
JP50086177A 1975-07-16 1975-07-16 X-ray iris device Granted JPS5210687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50086177A JPS5210687A (en) 1975-07-16 1975-07-16 X-ray iris device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50086177A JPS5210687A (en) 1975-07-16 1975-07-16 X-ray iris device

Publications (2)

Publication Number Publication Date
JPS5210687A true JPS5210687A (en) 1977-01-27
JPS5546040B2 JPS5546040B2 (en) 1980-11-20

Family

ID=13879466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50086177A Granted JPS5210687A (en) 1975-07-16 1975-07-16 X-ray iris device

Country Status (1)

Country Link
JP (1) JPS5210687A (en)

Also Published As

Publication number Publication date
JPS5546040B2 (en) 1980-11-20

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