CN2099548U - Laser cross-line positioning instrument - Google Patents
Laser cross-line positioning instrument Download PDFInfo
- Publication number
- CN2099548U CN2099548U CN 91218215 CN91218215U CN2099548U CN 2099548 U CN2099548 U CN 2099548U CN 91218215 CN91218215 CN 91218215 CN 91218215 U CN91218215 U CN 91218215U CN 2099548 U CN2099548 U CN 2099548U
- Authority
- CN
- China
- Prior art keywords
- line
- laser
- utility
- model
- cross
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a laser cross-line positioning instrument which is a device used for providing an accurate positioning datum line for the clinical diagnosis of a nuclear magnetic resonance imaging scanner. A he-ne laser tube of the utility model is flatwise arranged on the bottom board of the instrument, a total reflector is arranged at the front end of the output of the laser tube. After reflected by the total reflector, a light beam is transmitted along a direction which is parallel to the edge line of the bottom board. Two beam expanding focusing mirrors are arranged between a beam splitter mirror and the total reflector, wherein, the beam splitting mirror can split the beam into two orthogonal light beams which are respectively projected on two cylindrical reflectors and form a cross line after reflected by the cylindrical surface. The light cross line of the utility model is fine, uniform and clear, which can be used for the clinical diagnosis of the nuclear magnetic resonance imaging scan, and can also provide the positioning datum line for a CT scan.
Description
This utility model laser cross hairs position finder is that the clinical diagnosis for the NMR imaging scanner unit provides the accurate localization directrix.
The NMR imaging scanner unit generally is equipped with the cross hairs position finder that uses ordinary light source to manufacture, and this position finder adopts incandescent lamp bulb to make light source, and the scioptics system amplifies, and again through the projection of cross-graduation plate, forms cross hairs.Though this position finder apparatus structure is simple, light cross hairs projection quality is not high, and the cross hairs definition is not enough, and the cross center spot is fuzzy, can not satisfy the required precision of the clinical use of NMR imaging scanner unit.
For the clinical diagnosis of giving the NMR imaging scanner unit provides clear accurate localization directrix, the spy makes this utility model.
Structure of the present utility model, as shown in Figure 1, in the accompanying drawing 1:
1, power source for helium-neon laser 2, electrode wires socket
3, he-ne laser tube 4, anode tap resistance
5, total reflective mirror 6,7, expansion bundle focus lamp
8, beam splitter 9,10, cylinder reflector
Power source for helium-neon laser 1 joins by electrode wires socket 2 and he-ne laser tube 3.Keeping flat device on base near string resistance 4, he-ne laser tube 3 in the wiring of laser tube 3 anode taps, completely reflecting mirror 5 places near the laser tube 3 output front ends, and the reflection by 5 makes light beam propagate along the direction parallel with the base plate sideline.Expand bundle focus lamp 6,7 and place between beam splitter 8 and the total reflective mirror 5, be used to improve laser divergence and fineness.Beam splitter 8 is divided into orthogonal each other two-beam with incident illumination, and this two-beam is mapped to respectively on 9,10 two cylinder reflector.
During work, connect the 220V alternating current power supply, open the switch of Laser Power Devices 1, light he-ne laser tube 3, laser beam passes beam expanding lens 6,7 and arrives beam splitter 8 through reflecting mirror 5 reflections, be divided into the pairwise orthogonal light beam thus, divide to be clipped to cylinder reflector 9,10, mirror 9 mirrors 10 are again with the upwards reflection of two incident beams, and space crossed up formation laser cross hairs again.
Cylinder reflector of the present utility model is a critical piece, its structure as shown in Figure 2, be by:
1, mirror holder bearing; 2, the fixing through hole of using; 3, lock-screw; 4, lifting bung flange; 5, cylinder mirror holder; 6, cylinder reflector; 7, composition such as holding screw.
By the effect of lifting bung flange 4, can finely tune the height of cylindrical lens 5, in order to adjust the spatial up position of throw light.Unclamp lock-screw 3 during adjustment earlier, regulate lifting bung flange 4, then the height of mirror holder 5 just can change, after light cross position mixes up, again lock-screw is screwed.
The effect of cylinder reflector is that the light beam that horizontal direction transmits is upwards reflected to form the laser lines.By two orthogonal each other cylinder reflector reflections, can form the laser cross hairs at the instrument superjacent air space.
The key technical indexes of the present utility model:
Effective projection distance: 600～750mm.
Light cross hairs length: long line is that 260～340mm, short-term are 160～220mm.
Light line fineness :～1mm
Power input voltage: 50Hz alternating current 220V ± 10%.
Laser tube power: 0.8mw(adds attenuator can reduce to 0.2mw)
Laser tube useful life :～12000 hours.
Instrument volume: 150 * 156 * 61mm
3
Advantage of the present utility model:
1, both can guarantee that the light cross hairs was meticulous evenly, can guarantee again that light cross central point was meticulous clear.The light line fineness reaches 1 mm wide in effective working distance, about 1 millimeter of cross center spot
2, satisfied the precision that NMR imaging scans clinical use fully.
2, because this utility model adopts is that red He-Ne Lasers is made light source, thereby the observability of cross hairs is better than the normal optical position finder.
3, owing to adopt reasonable structural design and high-quality small size he-ne laser tube, make this utility model satisfy miniaturization size regulation, be adapted at installing and using on the NMR imaging scanning system.
4, since laser tube working life of the present utility model more than 10,000 hours, this just can guarantee position finder use steady in a long-term, and need not to change in a short time laser tube.
5, this utility model is easy and simple to handle as long as connect the 220V common power, gets final product work.
The clinical diagnosis that this utility model not only can be used for NMR imaging scanning provides high-precision location directrix, also can be used for the diagnosis location of CT scan.
Claims (2)
1, a kind of laser cross hairs position finder is characterized in that it being by the helium-neon laser power line socket, the helium-neon laser pipe, and anode tap resistance, a total reflective mirror, 2 are expanded the out-focus mirror, a beam splitter, 2 cylinder reflector are formed.
2, laser cross hairs position finder as claimed in claim 1 is characterized in that described cylinder reflector is by the mirror holder bearing, fixes and uses through hole, lock-screw, lifting bung flange, cylinder mirror holder, cylinder reflector, compositions such as holding screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91218215 CN2099548U (en) | 1991-07-11 | 1991-07-11 | Laser cross-line positioning instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91218215 CN2099548U (en) | 1991-07-11 | 1991-07-11 | Laser cross-line positioning instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2099548U true CN2099548U (en) | 1992-03-25 |
Family
ID=4925731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91218215 Expired - Lifetime CN2099548U (en) | 1991-07-11 | 1991-07-11 | Laser cross-line positioning instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2099548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105725979A (en) * | 2016-05-16 | 2016-07-06 | 王军 | Human body moire imaging device |
-
1991
- 1991-07-11 CN CN 91218215 patent/CN2099548U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105725979A (en) * | 2016-05-16 | 2016-07-06 | 王军 | Human body moire imaging device |
| CN105725979B (en) * | 2016-05-16 | 2019-02-15 | 深圳大学 | A kind of human body moire imaging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5440423A (en) | Optical illumination instrument | |
| CN2800304Y (en) | Composite lighting system for mini size on-line high precision vision measure | |
| MXPA04000043A (en) | Diffractive shaping of the intensity distribution of a spatially partially coherent light beam. | |
| CN2099548U (en) | Laser cross-line positioning instrument | |
| CN110895364A (en) | High-coupling-efficiency fiber laser debugging device and method | |
| CN104142613A (en) | Large-area digital photo-etching optical system | |
| CN102052919B (en) | Laser projection module with conical reflector supported by thin walls | |
| CN1261814C (en) | Light rod type optical engine lighting system | |
| CN219004968U (en) | High-precision picosecond laser cutting equipment | |
| CN116009271A (en) | Collimator with coded reticle pattern | |
| CN114235344A (en) | Debugging device and debugging method for laser resonator cavity mirror | |
| CN1078358C (en) | Illuminator and exposure method using same | |
| US5144638A (en) | Master dye laser oscillator including a specific grating assembly for use therein | |
| CN1313864C (en) | Reflective phase type focal area light distribution regulating system | |
| CN1188661C (en) | Laser aligner for realizing self collimator quick capturing and alignment method | |
| CN201278063Y (en) | Light intensity distribution regulating apparatus for focal point zone | |
| CN218272930U (en) | Galvanometer type laser scanning experimental device | |
| CN110681989A (en) | Be used for laser precision cutting equipment | |
| CN214278627U (en) | LED parallel light source system of IC lead frame | |
| CN218396499U (en) | Bifocal laser invisible cutting device | |
| CN220795589U (en) | Double-line laser shaping device | |
| CN215263179U (en) | Laser line light source suitable for linear array camera dark field detection | |
| CN212083834U (en) | Narrow-spectrum parallel light generation device suitable for optical test | |
| CN203817623U (en) | Polarization state conversion device for laser beams | |
| CN114019667B (en) | Double-arm illumination system, light sheet fluorescence microscope and use method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |