JPS56142444A - Compensation filter board - Google Patents

Compensation filter board

Info

Publication number
JPS56142444A
JPS56142444A JP4571680A JP4571680A JPS56142444A JP S56142444 A JPS56142444 A JP S56142444A JP 4571680 A JP4571680 A JP 4571680A JP 4571680 A JP4571680 A JP 4571680A JP S56142444 A JPS56142444 A JP S56142444A
Authority
JP
Japan
Prior art keywords
radiation
compensation filter
refractive index
visible
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.)
Pending
Application number
JP4571680A
Other languages
Japanese (ja)
Inventor
Haruo Nagai
Hiroshi Uehara
Kuniichi Nunokawa
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.)
Kyowa Gas Chemical Industry Co Ltd
Original Assignee
Kyowa Gas Chemical Industry Co 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 Kyowa Gas Chemical Industry Co Ltd filed Critical Kyowa Gas Chemical Industry Co Ltd
Priority to JP4571680A priority Critical patent/JPS56142444A/en
Publication of JPS56142444A publication Critical patent/JPS56142444A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material

Landscapes

  • Physics & Mathematics (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)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

PURPOSE:To eliminate indistinctiveness from projected image, by composing a compensation filter board of a visible-light-permeable substance and making its entire thickness and refractive index constant. CONSTITUTION:An indent 9 of a radiation compensation filter layer 8, which is composed of a radiation-absorptive-visible-light-permeable substance in such a manner that its thickness is changed in accordance with compensation pattern of radiation corresponding to shape of an object to which radiation is applied, is filled with a substance, which has a similar refractive index to that of the radiation-absorptive- visible-light-permeable substance constituting the filter layer, by mold-injecting method, etc. to form a refractive index compensating layer 10. It is possible, by doing so, to maintain a constant thickness of a compensation filter board 5, which is formed by adjusting nonuniform surface of the compensation filter layer 8, and also to compensate for the refractive index.
JP4571680A 1980-04-09 1980-04-09 Compensation filter board Pending JPS56142444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4571680A JPS56142444A (en) 1980-04-09 1980-04-09 Compensation filter board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4571680A JPS56142444A (en) 1980-04-09 1980-04-09 Compensation filter board

Publications (1)

Publication Number Publication Date
JPS56142444A true JPS56142444A (en) 1981-11-06

Family

ID=12727067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4571680A Pending JPS56142444A (en) 1980-04-09 1980-04-09 Compensation filter board

Country Status (1)

Country Link
JP (1) JPS56142444A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109381204A (en) * 2017-08-04 2019-02-26 西门子保健有限责任公司 Equipment for X-ray device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109381204A (en) * 2017-08-04 2019-02-26 西门子保健有限责任公司 Equipment for X-ray device

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