CN1489377A - Series lens image system of electric-controlled fixing diaphragm for x-ray machine - Google Patents
Series lens image system of electric-controlled fixing diaphragm for x-ray machine Download PDFInfo
- Publication number
- CN1489377A CN1489377A CNA031336787A CN03133678A CN1489377A CN 1489377 A CN1489377 A CN 1489377A CN A031336787 A CNA031336787 A CN A031336787A CN 03133678 A CN03133678 A CN 03133678A CN 1489377 A CN1489377 A CN 1489377A
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- camera lens
- image
- image system
- camera
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- 230000003287 optical effect Effects 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000003623 enhancer Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000007743 anodising Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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- Microscoopes, Condenser (AREA)
- Radiography Using Non-Light Waves (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
Structure of the system comprises correction lens, plane mirror with high reflectance, CCD camera, lens of camera, diaphragm, stepper motor and relevant control software. The arrangement is as follows. Image enhancer is aimed at the correction lens directly. Output image of correction lens is sent to plane mirror with high reflectance. Image reflected by the plane mirror is passed through diaphragm, which is connected to the stepper motor directly. Output of the diaphragm is toward lens of camera. The camera is behind the lens, and video signal output is connected. Operation of the stepper motor is controlled by computer software. The advantages of the invention are: simple structure, low cost, good stability of system, obtained image with high S/N ratio and high resolution.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to the image pickup part of RF type X line machine.
Background technology
Image optical system is to use the image pre-treatment and the image acquisition units of the RF type X line machine of image amplifier, IMAQ is divided into two kinds: the fluoroscopy images of 1, gathering low dosage, the fluorescence of image amplifier output is collected on the cameral CCD wafer by camera lens; 2, gather the exposure image of high dose, dosage is very high during exposure, and when the light intensity of image amplifier cutout screen output is perspective tens times are saturated for preventing the output of CCD wafer, must add optical attenuation equipment before camera lens.
At present, the IMAQ of the image optical system of international mainstream type employing has four kinds of patterns: 1, only use electronic aperture to regulate luminous flux.2, use neutral colour filter (luminous flux is 40%) to cooperate electronic aperture to regulate luminous flux.3, in the tandem lens system, use electronic aperture to regulate luminous flux.4, in the tandem lens system, use neutral colour filter (luminous flux is 40%) to regulate luminous flux.
In these patterns, electronic aperture is driven by stepping motor, needs to proofread and correct, and filter also uses motor or rotary solenoid to drive.Using the shortcoming of filter and aperture combination is the control structure complexity, the cost height; Only use electronic aperture, there is following problem: 1, in non-tandem lens system, the aperture of control is the aperture of camera lens, yet in fact, the best optics point of camera lens has definite position, promptly adjust aperture and focal length after, re-use outside Electric Machine Control and regulate its aperture, the inclined to one side optimum of crossing of aperture position (is greater than or less than) more than one times, and the optical property of camera lens has bigger change, influences picture quality.2, in the tandem lens system, electronic aperture is in the directional light light path between two camera lenses, and its adjusting can not make the optical property of camera lens descend, but, the electrical control of electronic aperture and complicated in mechanical structure, very high to the manufacture process requirement of equipment, the relative cost height.
Summary of the invention
For solving the deficiency of above device structure, purpose of the present invention provides the tandem camera lens image system of the dynamo-electric control of a kind of X line fixed aperture, adopt the tandem camera lens, promptly calibrate camera lens and add camera lens, adopt the adjustment component of the logical light fixed size diaphragm of step motor control, to realize that this stability of a system height, cost are low, can collect high s/n ratio, high-resolution image as luminous flux.
Design of the present invention is achieved in that
Its structure of tandem camera lens image system of the dynamo-electric control of X line of the present invention fixed aperture is by the calibration camera lens, high reflectance reflective plane mirror, the CCD camera, camera lens, diaphragm, stepping motor and control corresponding software are formed, (as shown in Figure 1) its connection is that image amplifier in the X line machine is directly aimed at the calibration camera lens, the green reflective plane mirror of high reflection is delivered in the output of calibration camera lens image, level crossing refraction image passes through diaphragm, diaphragm directly and stepping motor join, diaphragm when blocking output facing to camera gun, diaphragm leaves the input light path of camera lens when the unshielding position, the camera lens back is a camera, be connected with vision signal output simultaneously, whether relevant with the photography dosage of X line the action of diaphragm is, be the unshielding position during low dosage of perspective promptly, exposure during high dose for blocking the position.
Wherein, employing thickness is 0.5mm, the center has the diaphragm of the black flake aluminum of diameter 2mm circular hole as optical system, diaphragm is by step motor control, use high reflectance reflective plane mirror with horizontal plane angle at 45, with the light path half-twist, make image optical system parallel with horizontal plane, high reflectance reflective plane mirror, thickness is 10mm, and reflectivity is 90%, and wave-length coverage is 460～780mm, the optical flat mirror that adopts metal coating to make uses photomultiplier (PMT) as auto brightness control (ABS) signal and automatic exposure control (AFC) signals sampling device.
Stepping motor: adopt 12 V4 phase composite stepper motors, stepper motor driver is the one pole constant voltage driving, and 4 eight clap excitation mode mutually, the step motor control diaphragm realizes by computer software, its flow chart as shown in Figure 2, control method is: beginning, start wait command, order has come, and whether the diaphragm action detects and put in place, if put in place, the diaphragm action stops, and continues wait command, and order has come, the diaphragm action, whether detect return then,, continue to detect if do not have return, return, the diaphragm action stops, and continues wait command, finishes circulation.
Advantage of the present invention, simple in structure, price is low, and the stability of a system is good, can collect high s/n ratio, high-resolution image.
Description of drawings
Fig. 1 is the tandem camera lens image system structure principle chart of the dynamo-electric control of X line fixed aperture;
Fig. 2 is the tandem camera lens image system control diaphragm software flow pattern of the dynamo-electric control of X line fixed aperture;
Embodiment
Have the diaphragm of the black flake aluminum of diameter 2mm circular hole with the center as optical system, the light intensity of decay image amplifier cutout screen, the signal to noise ratio of raising image strengthens some depth of field, improves the resolution of image.The action of diaphragm is accomplished accurate location by step motor control, band FEEDBACK CONTROL, band mechanical position limitation.Use high reflectance level crossing with horizontal plane angle at 45, with the light path half-twist, make image optical system parallel, thereby shortened the distance between image optical system and the ground, image optical system damages when effectively having prevented bed body banking motion danger with hitting with horizontal plane.High reflectance reflective plane mirror is the optical flat mirror that adopts metal coating to make.Use photomultiplier (PMT) as auto brightness control (ABS) signal and automatic exposure control (AEC) signals sampling device.Concrete device stepping motor: adopt 12v 4 phase composite stepper motors; Stepper motor driver: the one pole constant voltage driving, 48 clap excitation mode mutually; Diaphragm: the black anodizing aluminum slice, thickness 0.5mm, center-hole diameter are 2mm, diaphragm about 500ms operate time, less than 700ms, the diaphragm setting precision is ± 0.5mm; The CPU:89C2051 of circuit for controlling motor; Calibration camera lens: Rodenstock produces; High reflectance reflective plane mirror: the metal coating level crossing of 10mm thickness, reflectivity are 90%, and wave-length coverage is 460-780nm.
Claims (5)
1, the tandem camera lens image system of the dynamo-electric control of a kind of X line fixed aperture, it is characterized in that its structure of image system is by the calibration camera lens, high reflectance reflective plane mirror, the CCD camera, camera lens, diaphragm, stepping motor and control corresponding software are formed, its connection is that the image amplifier in the X line machine is directly aimed at the calibration camera lens, the green reflective plane mirror of high reflection is delivered in the output of calibration camera lens image, level crossing refraction image passes through diaphragm, diaphragm directly and stepping motor join, diaphragm output is facing to camera gun, the camera lens back is a camera, is connected with vision signal output simultaneously.
2, by the described image system of claim 1, it is characterized in that it is 0.5mm that diaphragm adopts thickness, the center has the black flake aluminum of diameter 2mm circular hole.
3, by the described image system of claim 1, it is characterized in that adopting the optical flat mirror of metal coating manufacturing, high reflectance reflective plane mirror with horizontal plane angle at 45, with the light path half-twist, make image optical system parallel with horizontal plane, thickness is 10mm, and reflectivity is 90%, and wave-length coverage is 460～780mm.
4, by the described image system of claim 1, it is characterized in that stepping motor is a 12V4 phase composite stepper motor, stepper motor driver is the one pole constant voltage driving, and 4 eight clap excitation mode mutually.
5, by the described image system of claim 1, it is characterized in that Control Software is that control method is: beginning starts wait command, order has come, and whether the diaphragm action detects and put in place, if put in place, the diaphragm action stops, and continues wait command, order has come, and whether the diaphragm action detects return then, if do not have return, continue to detect, return, the diaphragm action stops, and continues wait command, finishes circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03133678.7A CN1212727C (en) | 2003-08-13 | 2003-08-13 | Series lens image system of electric-controlled fixing diaphragm for X-ray machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03133678.7A CN1212727C (en) | 2003-08-13 | 2003-08-13 | Series lens image system of electric-controlled fixing diaphragm for X-ray machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1489377A true CN1489377A (en) | 2004-04-14 |
| CN1212727C CN1212727C (en) | 2005-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03133678.7A Expired - Fee Related CN1212727C (en) | 2003-08-13 | 2003-08-13 | Series lens image system of electric-controlled fixing diaphragm for X-ray machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212727C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692811A (en) * | 2012-05-30 | 2012-09-26 | 丹东奥龙射线仪器有限公司 | X-ray real-time imaging image acquisition adjusting device |
| CN107389715A (en) * | 2017-06-29 | 2017-11-24 | 苏州浪声科学仪器有限公司 | A kind of XRF collimating components |
| CN107389714A (en) * | 2017-06-29 | 2017-11-24 | 苏州浪声科学仪器有限公司 | A kind of X ray collimates block |
| CN111058289A (en) * | 2020-01-17 | 2020-04-24 | 青岛大学 | Method for enhancing hygroscopicity of sodium periodate-oxidized cotton fabric |
-
2003
- 2003-08-13 CN CN03133678.7A patent/CN1212727C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692811A (en) * | 2012-05-30 | 2012-09-26 | 丹东奥龙射线仪器有限公司 | X-ray real-time imaging image acquisition adjusting device |
| CN107389715A (en) * | 2017-06-29 | 2017-11-24 | 苏州浪声科学仪器有限公司 | A kind of XRF collimating components |
| CN107389714A (en) * | 2017-06-29 | 2017-11-24 | 苏州浪声科学仪器有限公司 | A kind of X ray collimates block |
| CN111058289A (en) * | 2020-01-17 | 2020-04-24 | 青岛大学 | Method for enhancing hygroscopicity of sodium periodate-oxidized cotton fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1212727C (en) | 2005-07-27 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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| ASS | Succession or assignment of patent right |
Owner name: PHILIPS ( CHINA )INVESTMENT CO., LTD. Free format text: FORMER OWNER: DONGRUI DIGITAL MEDICAL SYSTEM CO., LTD., SHENYANG Effective date: 20050114 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20050114 Address after: 200070, 218 West Tianmu Road, Shanghai, 20-22 Applicant after: Philips (China) Investment Co.,Ltd. Address before: 110179 Shenyang Hunnan hi tech Industrial Development Zone, East Software Park. Applicant before: Philips and Neusoft Medical Systems Co. |
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Owner name: PHILIPS AND NEUSOFT MEDICAL SY Free format text: FORMER OWNER: PHILIPS ( CHINA )INVESTMENT CO., LTD. Effective date: 20050812 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20050812 Address after: 110179 Liaoning province Shenyang Nanxin District Century Road No. 16 Patentee after: Philips and Neusoft Medical System Co.,Ltd. Address before: 200070, 218 West Tianmu Road, Shanghai, 20-22 Patentee before: Philips (China) Investment Co.,Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: DONGRUAN MEDICAL SYSTEMS CO., LTD., SHENYANG Free format text: FORMER OWNER: DONGRUAN PHILIPS MEDICAL EQUIPMENT AND SYSTEM CO., LTD. Effective date: 20140214 |
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| TR01 | Transfer of patent right | ||
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Effective date of registration: 20140214 Address after: 110179 Liaoning Shenyang Hunnan New Century Road No. 16 Patentee after: SHENYANG NEUSOFT MEDICAL SYSTEMS Co.,Ltd. Address before: 110179 Liaoning province Shenyang Nanxin District Century Road No. 16 Patentee before: Philips and Neusoft Medical System Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
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Address after: 110179 No. 177-1 Innovation Road, Hunnan District, Shenyang City, Liaoning Province Patentee after: Shenyang Neusoft Medical Systems Co.,Ltd. Address before: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 16 Patentee before: SHENYANG NEUSOFT MEDICAL SYSTEMS Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050727 Termination date: 20210813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |