JPS6468603A - Luminous flux forming device - Google Patents
Luminous flux forming deviceInfo
- Publication number
- JPS6468603A JPS6468603A JP62227170A JP22717087A JPS6468603A JP S6468603 A JPS6468603 A JP S6468603A JP 62227170 A JP62227170 A JP 62227170A JP 22717087 A JP22717087 A JP 22717087A JP S6468603 A JPS6468603 A JP S6468603A
- Authority
- JP
- Japan
- Prior art keywords
- luminous flux
- reflected
- spot
- shaped
- parallel 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.)
- Granted
Links
- 230000004907 flux Effects 0.000 title abstract 18
- 238000003745 diagnosis Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
- Radiation-Therapy Devices (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
PURPOSE:To expand the range of the angle where reflected luminous flux can be detected by providing a reflecting tape which reflects luminous flux converged into spot-shaped parallel light by modulation recursively almost in the incidence direction and photoelectric detectors which detect the reflected luminous flux. CONSTITUTION:This luminous flux forming device is equipped with a luminous flux generation source 1 which generates modulated luminous flux, a lens 2 which converges the luminous flux into spot-shaped parallel light, half-mirrors 3 and 5 which distribute the luminous flux in two directions, cylindrical lenses 4 and 6 which diffuse the reflected luminous flux into pieces of luminous flux crossing each other at right angles, a reflection mirror 7 for the luminous flux passed through the half-mirrors 3 and 5, a lens 8 which converges its reflected luminous flux into spot-shaped parallel light, the reflecting tape 13 which reflects the spot-shaped luminous flux 23 recursively, and photoelectric detectors 11 which detect its reflected luminous flux. Therefore, a patient is easily positioned with a cross-shaped intersection 25 at the time of radiation treatment or diagnosis, and the reflected luminous flux 24 from the reflecting tape 13 stuck on a plane which is not perpendicular to the luminous flux such as the noise or chin of the patient is detected at a high S/N by the photoelectric detectors 11 with the modulated luminous flux 23.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62227170A JP2538611B2 (en) | 1987-09-09 | 1987-09-09 | Light flux forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62227170A JP2538611B2 (en) | 1987-09-09 | 1987-09-09 | Light flux forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6468603A true JPS6468603A (en) | 1989-03-14 |
JP2538611B2 JP2538611B2 (en) | 1996-09-25 |
Family
ID=16856582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62227170A Expired - Fee Related JP2538611B2 (en) | 1987-09-09 | 1987-09-09 | Light flux forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2538611B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107072609A (en) * | 2014-08-19 | 2017-08-18 | 皇家飞利浦有限公司 | X-ray imaging device |
-
1987
- 1987-09-09 JP JP62227170A patent/JP2538611B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107072609A (en) * | 2014-08-19 | 2017-08-18 | 皇家飞利浦有限公司 | X-ray imaging device |
JP2017528202A (en) * | 2014-08-19 | 2017-09-28 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | X-ray imaging equipment |
US10420520B2 (en) | 2014-08-19 | 2019-09-24 | Koninklijke Philips N.V. | X-ray imaging apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2538611B2 (en) | 1996-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |