CN1066818A - Laser rotary mirror type optical scanning system - Google Patents
Laser rotary mirror type optical scanning system Download PDFInfo
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- CN1066818A CN1066818A CN 91103317 CN91103317A CN1066818A CN 1066818 A CN1066818 A CN 1066818A CN 91103317 CN91103317 CN 91103317 CN 91103317 A CN91103317 A CN 91103317A CN 1066818 A CN1066818 A CN 1066818A
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Abstract
Laser rotary mirror type optical scanning system is the improvement of the laser optical scanning system that uses about a kind of laser rotary mirror type film setter, is to be made of LASER Light Source 1, tilting mirror 5, rotation mirror motor 7, F θ object lens 8, film transport mechanism 9 etc., and wherein tilting mirror 5 adopts pentaprism mirror groups.The present invention has promptly reduced the required precision of known laser rotary mirror type optical scanning system to the processing of tilting mirror angle, tilting mirror dress school and rotation mirror motor axle system, significantly improved sweep speed again, the road scanning light beam that rotation mirror motor is whenever rotated a circle increases to the multi-channel scanning light beam, thereby has improved operating efficiency greatly.
Description
The present invention relates to a kind of optical scanning system, particularly the improvement and the raising of the laser optical scanning system that uses about a kind of laser rotary mirror type film setter.
Terahertz wave quasi-optics has formed a new science and technology field current.Because computer technology application and development and the particularly Chinese character solution of input technology on computers of literal, and the breakthrough of compressionism make traditional print publishing mode-hand-set, are replaced by the Computerized laser photo-composing system.
Laser photocomposing machine is the main output equipment of Computerized laser photo-composing system.At present, known laser photocomposing machine is divided three classes on scan mode substantially, i.e. rotary mirror type, mirror-vibrating and drum-type.Though the drum-type laser photocomposing machine satisfies the required precision of scanning imagery easily, structure is complicated, the cost height, and operating difficulties, the instrument noise is big, and its sweep speed is slow, inefficiency.The DJP-II type laser photocomposing machine that representative products has laser photocomposing machine that the PANASONIC electric corporation produces and Chinese Hangzhou communication equipment factory to produce.It is slow that the mirror-vibrating film setter equally also exists sweep speed, shortcomings such as inefficiency, and also volume is also big, but its required precision to galvanometer and galvanometer motor is not harsh.Pelbox72 and Pelbox108 type laser photocomposing machine and the Japanese SAPLS-SSZ type laser photocomposing machine that grinds company's production of writing that representative products has U.S. ECRM company to produce.The rotary mirror type film setter has overcome above-mentioned shortcoming, has advantages such as simple in structure, processing ease, sweep speed are fast, operating efficiency height.Its representative products has JZJ175, the JZJ380 type laser photocomposing machine of MK21 type laser photocomposing machine that Britain MONOTYPE company produces, Linotronic300, Linotronic500 type laser photocomposing machine and Changchun Inst. of Optics and Fine Mechanics, Chinese Academy of Sciences's development that U.S. Linotype company produces.
The optical scanning system of known rotary mirror type laser photocomposing machine is to be made of LASER Light Source, tilting mirror, rotation mirror motor, F θ object lens and film transport mechanism etc., wherein LASER Light Source divides two kinds of He-Ne Lasers light source and semiconductor laser light resources again, the He-Ne Lasers light source is by He-Ne laser, acousto-optic modulator, and beam expander constitutes; Semiconductor laser light resource is to be made of semiconductor laser and collimating mirror.What tilting mirror adopted is prismatic mirror of multiaspect or polygonal prism axicon lens.This simple in structure, can improve sweep speed and operating efficiency, but, directly affect its scanning accuracy because of the prismatic mirror of multiaspect and each reflecting surface of pyramid mirror have the processing angle error.Therefore, this system is all very harsh to the required precision of processing, dress school and the rotation mirror motor axle system of tilting mirror.U.S. ULTRE company proposes to replace prismatic mirror of multiaspect or polygonal prism axicon lens with an optics pentaprism, greatly reduces the angle processing to tilting mirror, the dress school of tilting mirror and the required precision of rotation mirror motor axle system.Sweep speed is slow, the problem of inefficiency but brought thereupon.
The objective of the invention is the optical scanning system of known laser rotary mirror type film setter is improved, propose a kind of requirement that promptly reduces the processing of tilting mirror angle, tilting mirror dress school and rotation mirror motor shafting precision, also can significantly improve the optical scanning system of sweep speed and operating efficiency.
Design of the present invention is partly to use pentaprism mirror group to replace the tilting mirror of known optical scanning system.Said pentaprism mirror group is made up of the pentaprism more than two or two, its each pentaprism is a pivot with same rotating shaft all, and the plane of incidence of each pentaprism is vertical with rotating shaft, and should satisfy incident light and emergent light at grade, emergent light is at the same side scanning imagery simultaneously.Optical scanning system of the present invention as shown in Figure 1.Constitute by LASER Light Source 1, optics pentaprism mirror group 5, rotation mirror motor 7, F θ object lens 8, film transport mechanism 9 etc., the light beam that LASER Light Source 1 sends reflexes to F θ object lens 8 through a plane of incidence of pentaprism mirror group 5, converge on the film of film transport mechanism 9, pentaprism mirror group 5 drives at the uniform velocity rotation by rotation mirror motor, and film drives uniform motion by the film trasport machine.Pentaprism is selected W II-90 ° pentaprism (GB7660.2-87) for use.
The present invention has promptly reduced the required precision to the processing of tilting mirror angle, tilting mirror dress school and rotation mirror motor axle system of known rotary mirror type optical scanning system.Also significantly improved sweep speed, the road scanning light beam that rotation mirror motor is whenever rotated a circle increases to the multi-channel scanning light beam, thereby has improved operating efficiency greatly.
Optical scanning system of the present invention is removed and is used for the laser rotary mirror type film setter, also can be used in the optical scanning system of aspects such as remote sensing, medical treatment, information processing.
Most preferred embodiment of the present invention as shown in Figure 2, by He-Ne laser 1, acousto-optic modulator 2, speculum 3, beam expander 4, pentaprism mirror group 5, garden grating 6, rotation mirror motor 7, F θ object lens 8, film transport mechanism 9 constitutes, acousto-optic modulator 2 is to utilize the acoustic optic interaction principle to make, it plays a part the laser high-speed switch, it is controlled by the word lattice signal of computer, the signal of telecommunication is converted to optical signal, on film, get exposure ready, and the scanning (spot scan and film movements) by both direction forms literal, beam expander 4 is in order to improve the angle of divergence of laser beam, to obtain image quality preferably, speculum 3 is long-pending in order to the reduction printer body, pentaprism mirror group adopts two W II-90 ° pentaprisms to be bonded, the plane of incidence of its two pentaprisms places on the same plane, and vertical with rotating shaft, and exit plane is parallel to each other and direction is opposite.Garden grating 6 is installed on the deflection axis, utilizes the signal of grating to control the positional precision of laser dotting, and F θ object lens 8 are that laser beam is converged on the film.The difference of it and general camera lens is can be uniform angle, on film plane, become uniform luminous point spacing, film transport mechanism 9 is transfer systems of film, adopt the differential type frictional drive, make film be in tensioning state and the film strictness is between two pairs of film trasport rollers and resemble the face position, pressure between every pair of friction roller is regulated by spring, in advance system, be provided with supply can and receiving can, so that realize the purpose of continuous sweep.
The accompanying drawing 1 of optical scanning system of the present invention is a rendering of the present invention, and Fig. 2 is a most preferred embodiment of the present invention.1 is LASER Light Source among the figure,, 2 is acousto-optic modulator, and 3 is speculum, and 4 is beam expander, and 5 is pentaprism mirror group, and 6 is the garden grating, and 7 is rotation mirror motor, and 8 is F θ object lens, 9 is film transport mechanism.
Claims (3)
1, laser rotary mirror type optical scanning system is by LASER Light Source, tilting mirror, rotation mirror motor, formations such as FO object lens and film transport mechanism, the light beam that LASER Light Source sends is injected the FO object lens and is converged on the film on the film transport mechanism through tilting mirror, tilting mirror is by rotation mirror motor control rotation, it is characterized in that tilting mirror adopts pentaprism mirror group, said pentaprism mirror group is made up of the pentaprism more than two or two, its each pentaprism is a pivot with same rotating shaft all, and the plane of incidence of each pentaprism is vertical with rotating shaft, and should satisfy incident light and emergent light at grade, emergent light is at the same side scanning imagery simultaneously.
2, optical scanning system according to claim 1 is characterized in that pentaprism mirror group is to be bonded by two pentaprisms, and the plane of incidence of its two pentaprisms places on the same plane and be vertical with rotating shaft, and exit plane is parallel to each other and direction is opposite.
3,, it is characterized in that pentaprism adopts W II-90 ° pentaprism according to claim 1 or 2 described optical scanning systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103317 CN1025598C (en) | 1991-05-18 | 1991-05-18 | Laser rotary mirror type optical scanning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103317 CN1025598C (en) | 1991-05-18 | 1991-05-18 | Laser rotary mirror type optical scanning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1066818A true CN1066818A (en) | 1992-12-09 |
| CN1025598C CN1025598C (en) | 1994-08-10 |
Family
ID=4906036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91103317 Expired - Fee Related CN1025598C (en) | 1991-05-18 | 1991-05-18 | Laser rotary mirror type optical scanning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1025598C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173178A (en) * | 2011-02-22 | 2011-09-07 | 苏州华必大激光有限公司 | Laser imaging device and method with unequal distances |
| CN102829772A (en) * | 2011-06-14 | 2012-12-19 | 喜利得股份公司 | Laser system for producing a laser marking on a surface |
| CN105973452A (en) * | 2016-05-12 | 2016-09-28 | 秦皇岛市地方道路管理处 | Remote bridge vibration monitoring system and method |
| CN106738870A (en) * | 2017-03-03 | 2017-05-31 | 无锡金谷三维科技有限公司 | The 3D printing method and its equipment of textile |
| CN106842228A (en) * | 2017-01-19 | 2017-06-13 | 北京飞思迈尔光电科技有限公司 | A kind of optical scanner sensor |
| CN109683344A (en) * | 2019-01-24 | 2019-04-26 | 中国科学院西安光学精密机械研究所 | Light supply apparatus and its building method for the vertical assembling & adjusting system of X-ray focusing mirror |
-
1991
- 1991-05-18 CN CN 91103317 patent/CN1025598C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173178A (en) * | 2011-02-22 | 2011-09-07 | 苏州华必大激光有限公司 | Laser imaging device and method with unequal distances |
| CN102173178B (en) * | 2011-02-22 | 2014-03-05 | 苏州华必大激光有限公司 | Laser imaging device and method with unequal distances |
| CN102829772A (en) * | 2011-06-14 | 2012-12-19 | 喜利得股份公司 | Laser system for producing a laser marking on a surface |
| CN105973452A (en) * | 2016-05-12 | 2016-09-28 | 秦皇岛市地方道路管理处 | Remote bridge vibration monitoring system and method |
| CN106842228A (en) * | 2017-01-19 | 2017-06-13 | 北京飞思迈尔光电科技有限公司 | A kind of optical scanner sensor |
| CN106842228B (en) * | 2017-01-19 | 2023-08-29 | 北京飞思迈尔光电科技有限公司 | Optical scanning sensor |
| CN106738870A (en) * | 2017-03-03 | 2017-05-31 | 无锡金谷三维科技有限公司 | The 3D printing method and its equipment of textile |
| CN109683344A (en) * | 2019-01-24 | 2019-04-26 | 中国科学院西安光学精密机械研究所 | Light supply apparatus and its building method for the vertical assembling & adjusting system of X-ray focusing mirror |
| CN109683344B (en) * | 2019-01-24 | 2023-10-03 | 中国科学院西安光学精密机械研究所 | Light source device for X-ray focusing mirror vertical adjustment system and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1025598C (en) | 1994-08-10 |
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| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |