CN101587244B - Device and method for correcting optical system assembling - Google Patents

Device and method for correcting optical system assembling Download PDF

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Publication number
CN101587244B
CN101587244B CN2008101005399A CN200810100539A CN101587244B CN 101587244 B CN101587244 B CN 101587244B CN 2008101005399 A CN2008101005399 A CN 2008101005399A CN 200810100539 A CN200810100539 A CN 200810100539A CN 101587244 B CN101587244 B CN 101587244B
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China
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optical system
light source
limited
focusing objective
objective len
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CN101587244A (en
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杨聪明
卢成志
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TAIRUI SCIENCE-TECHNOLOGY Co Ltd
TopRay Technologies Inc
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TAIRUI SCIENCE-TECHNOLOGY Co Ltd
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Abstract

The invention discloses a device and a simple and effective method for correcting optical system assembling so as to ensure that the best imaging position between the light source and a focusing object lens of a limited optical system is found and adjusted during the assembly of the limited optical system. The device comprises an external light source, a low-magnification imaging optical system, an electrical control system and a monitor. When parallel light beams generated by the external light source are parallel to the light axis of the limited optical system to be corrected, the low-magnification imaging optical system is made to present two focusing light spots formed by the internal light source and the external light source of the limited optical system to be corrected at the same time, and the best image height of the limited optical system to be corrected can be found by adjusting the position of a focusing object lens or the position of the light source of the limited opticalsystem to be corrected. The device for correcting the optical system assembling has simple structure, easy assembly, high assembly precision and low cost and can optically adjust the position of each limited focusing object lens.

Description

Optical system assembling means for correcting and method
Technical field
The present invention is relevant for a kind of optical system assembling means for correcting and method, is provided at limitedly when being the optical system assembling, and proofreading and correct limited is the light source of optical system and the optimal imaging position between the focusing objective len.
Background technology
The application demand of related elements such as optical lens such as CD player's read head, digital camera, mobile phone camera and optical communication significantly increases.Along be shaped flourish with relevant high-accuracy mould industry such as injection molding of moulded glass, this type of rotational symmetry optical element is when making or system assembles, and optical axis and rotation axes of symmetry will produce error as if not overlapping.Along with the requirement that optical lens widespread use and optical system assembling thereof are proofreaied and correct,, then be the important topic of making the high-precision optical eyeglass for the detection assessment of component error.
In general optical system, if the optical axis of lens does not overlap with axis of reference, when light enters optical system, no matter be by the reflection or reflecting formed optical imagery all error can occur, and then influenced the quality of whole optical system, therefore, before the assembling optical system, how meeting is carried out the measurement of error to the optical element (for example lens) of wherein required use earlier at present.
When confirming its image quality in traditional optical system, the method that is used in optical read head is luminous point that object lens the focused on amplification of the powerful optical system of use with read head, shape analysis image quality by luminous point, again and then analyze element quality and assembly error in the optical system, but, above-mentioned ray machine corrective system, owing to used the high magnification optical system, the influence of vibration when being subject to environment and adjustment, the practice servo-control system of need arranging in pairs or groups often solves this vibration problem, thereby construction system complexity and cost are higher.
Summary of the invention
The invention provides a kind of optical system assembling means for correcting and method.The invention provides when limited system (finite conjugate) optical system assembling, by means for correcting of the present invention, finding out limited is the light source (object) of optical system and the optimal imaging position between the focusing objective len, and assemble optical system as benchmark, just can reach this limited is the best image height position of optical system.
Means for correcting of the present invention, it is simple in structure, group is upright easily, assembly precision is high, cost is low, and can be limited at each be that relative position is done best the adjustment between focusing objective len and light source.Because limited is that focusing objective len in the optical system has nearmis unavoidably on technology, therefore by means for correcting of the present invention, the optimum position except between recoverable focusing objective len and internal light source, also can proofread and correct the fabrication error of focusing objective len.
Optical system assembling means for correcting of the present invention comprises external light source, low range imaging optical system, electric-control system and monitor.
According to the present invention, the parallel beam that external light source produces, entering the limited of institute's desire adjustment is in the optical system, and via focusing objective len, forms first focal spot; It is the internal light source of optical system that electric-control system starts the limited of desire adjustment, and allows the light beam of this internal light source via focusing objective len, forms second focal spot; Then, first and second focal spot imaging is amplified, and supervise by monitor by the low range imaging optical system; Adjusting focusing objective len by electric-control system at last or adjusting limited is the relevant position of the internal light source of optical system, is the light source of optical system and the relative position of the best between focusing objective len so that find limited.
Aforesaid optical system assembling means for correcting, wherein the light beam of this external light source generation is a directional light.
Aforesaid optical system assembling means for correcting, wherein should be limited be also to comprise glass cover-plate between optical system and this low range imaging optical system, this glass cover-plate is the compensation flat board of arranging in pairs or groups with this focusing objective len.
Aforesaid optical system assembling means for correcting, wherein this external light source is moved, starts in the fine setting of this this focusing objective len of electric-control system may command, also can provide power supply to this low range imaging optical system.
Light beam that external light source produced and desire adjustment are adjusted in optical system of the present invention assembling bearing calibration limited be the optical axis of optical system parallel after, allowing the low range imaging optical system can present the limited of desire adjustment simultaneously is the light source and formed two focal spots of external light source of optical system, and supervises by monitor; Be the light source position of optical system by position or the limited of adjustment desire adjustment of adjusting focusing objective len at last, just can find the limited of desire adjustment is the best image height of optical system.
The present invention also provides a kind of optical system assembling bearing calibration, being applied to limited is in the optical system, so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this method comprises the following step: it is that the optical axis of optical system is parallel that a. adjusts light beam that external light source produced limited with this; B. adjust the focal plane of low range imaging optical system, formed first focal spot of parallel beam line focus object lens (or the limited of desire adjustment is formed second focal spot of internal light source line focus object lens of optical system) of external light source is imaged on the monitor; C. move the position of any one element of this focusing objective len and this low range imaging optical system at least along optical axis direction, making this external light source and this limited is the light beam of this internal light source generation of optical system, is presented on the monitor via formed first focal spot of this focusing objective len and second focal spot; And d. adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position.
Aforesaid optical system assembling bearing calibration, wherein among this step a, the light beam that this external light source produced is a parallel beam.
Aforesaid optical system assembling bearing calibration, wherein among this step c, can move the position of this focusing objective len along optical axis direction, making this external light source and this limited is the light beam of this internal light source generation of optical system, is presented on this monitor via formed this first focal spot of this focusing objective len and this second focal spot.
Aforesaid optical system assembling bearing calibration, wherein among this step c, can move the position of this low range imaging optical system along optical axis direction, making this external light source and this limited is the light beam of this internal light source generation of optical system, is presented on this monitor via formed this first focal spot of this focusing objective len and this second focal spot.
Aforesaid optical system assembling bearing calibration, wherein among this step c, can move the position of this low range imaging optical system along optical axis direction simultaneously, making this external light source and this limited is the light beam of this internal light source generation of optical system, is presented on this monitor via formed this first focal spot of this focusing objective len and this second focal spot.
Aforesaid optical system assembling bearing calibration wherein in this steps d, can be adjusted the position of this focusing objective len, to obtain best image quality.
Aforesaid optical system assembling bearing calibration, wherein in this steps d, can adjust this limited is the position of this any one element of inside of optical system, to obtain best image quality.
Aforesaid optical system assembling bearing calibration, wherein in this steps d, can adjust this focusing objective len simultaneously limited with this is the position of this any one element of inside of optical system, to obtain best image quality.
The present invention also provides a kind of optical system assembling bearing calibration, being applied to limited is in the optical system, so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this method comprises the following step: it is that the optical axis of optical system is parallel that A. adjusts light beam that external light source produced limited with this; B. adjust the low range imaging optical system, the parallel beam that makes this external light source is through formed first focal spot of this focusing objective len and image on the monitor, writes down this imaging point position; C. the limited of electric-control system unlatching desire adjustment is the internal light source of optical system, at least adjust low range imaging optical system or focusing objective len and move, make that desire adjustment limited is that second focal spot of the internal light source line focus object lens of optical system images on the monitor screen in optical axis direction; And D. adjusts this of desire adjustment limited to be the position of this any one element of inside of optical system, to make the formed imaging point of this external light source that is write down among its imaging point and the step B, be positioned at best relative position.
The present invention provides a kind of optical system assembling bearing calibration again, being applied to limited is in the optical system, so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this method comprises the following step: (1). adjusting light beam that external light source produced limited with this is that the optical axis of optical system is parallel; (2). adjust the focal plane of low range imaging optical system, formed first focal spot of parallel beam line focus object lens (or the limited of desire adjustment is formed second focal spot of internal light source line focus object lens of optical system) of external light source is imaged on the monitor; (3). electric-control system is adjusted focusing objective len and is swung in optical axis direction, allows intersect on the monitor show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system; And (4). adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position.
The present invention also provides a kind of optical system assembling bearing calibration, being applied to limited is in the optical system, so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this method comprises the following step: it is that the optical axis of optical system is parallel that I. adjusts light beam that external light source produced limited with this; II. adjust the focal plane of low range imaging optical system, formed first focal spot of parallel beam line focus object lens (or the limited of desire adjustment is formed second focal spot of internal light source line focus object lens of optical system) of external light source is imaged on the monitor; III. to open the limited of external light source and desire adjustment simultaneously be the internal light source of optical system to electric control system controls, and adjust the low range imaging optical system and swing at optical axis direction, allow intersect on the monitor show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system; And IV. adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position.
Means for correcting of the present invention is simple in structure, group is upright easily, assembly precision is high, cost is low, and can be limited at each be that best the adjustment done in the focusing objective len position.
Detailed description and claims of cooperating following accompanying drawing, embodiment, will on address other objects and advantages of the present invention and be specified in after.
Description of drawings
Fig. 1 is a synoptic diagram of optical system assembling means for correcting of the present invention.
Fig. 2 is a workflow diagram of optical system assembling bearing calibration of the present invention.
Fig. 3 is the present invention's first work example, and a workflow diagram of optical system assembling bearing calibration is described.
Fig. 4 is the present invention's second work example, and a workflow diagram of optical system assembling bearing calibration is described.
Fig. 5 is the present invention's the 3rd work example, and a workflow diagram of optical system assembling bearing calibration is described.
Wherein, description of reference numerals is as follows:
101 external light sources 103 low range imaging optical systems
105 monitors 107 electric-control systems
110 limited be optical system 113 internal light sources
115 focusing objective lens 117 compensation are dull and stereotyped
The 110a spectroscope 101a first focal spot
113a second focal spot
201 adjust light beams that external light source produced and desire adjustment limited be that the optical axis of optical system is parallel
202 adjust the focal plane of low range imaging optical system, and formed first focal spot of parallel beam line focus object lens (or the limited of desire adjustment is formed second focal spot of internal light source line focus object lens of optical system) of external light source is imaged on the monitor
203 positions along any one element of mobile at least focusing objective len of optical axis direction and low range imaging optical system, allow external light source and desire adjustment limited be the light beam that the internal light source of optical system produces, be presented on the monitor via formed first and second focal spot of focusing objective len
204 adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position
302 adjust the low range imaging optical systems, make formed first focal spot of parallel beam line focus object lens of external light source and image on the monitor, write down this imaging point position
It is the internal light source of optical system that 303 electric-control systems are opened the limited of desire adjustment, at least adjust low range imaging optical system or focusing objective len and move, make that desire adjustment limited is that second focal spot of the internal light source line focus object lens of optical system images on the monitor screen in optical axis direction
304 the limited of adjustment desire adjustment are the position of any one element of inside of optical system, make the formed imaging point of external light source that is write down in its imaging point and the step 302, are positioned at best relative position
403 electric-control systems are adjusted focusing objective len and are swung in optical axis direction, allow intersect on the monitor show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system
It is the internal light source of optical system that 503 electric control system controls are opened the limited of external light source and desire adjustment simultaneously, and adjust the low range imaging optical system and swing at optical axis direction, allow intersect on the monitor show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system
Embodiment
Fig. 1 is a synoptic diagram of optical system of the present invention assembling means for correcting, wherein this device be applied in one limited be in the optical system 110, the optimal imaging position between its internal light source 113 and the focusing objective len 115.With reference to figure 1, this optical system assembling means for correcting has external light source 101, low range imaging optical system 103, electric-control system 107 and monitor 105 at least.
The directional light that the external light source 101 of this optical system assembling means for correcting produces, entering the limited of institute's desire adjustment is in the optical system 110, and via focusing objective len 115, forms the first focal spot 101a; It is the internal light source 113 of optical system that electric-control system 107 starts the limited of desire adjustment, and allows the light beam of this internal light source via focusing objective len 115, forms the second focal spot 113a; Then, first and second focal spot (101a, 113a) imaging is amplified, and supervise by monitor 105 by low range imaging optical system 103; Last electric-control system 107 adjusts focusing objective len 115 or adjusting limited is the relevant position of the internal light source 113 of optical system, is the best image height of optical system 110 so that find limited.
Wherein, be more to comprise dull and stereotyped (the componsated plate) 117 of compensation between optical system 110 and the low range imaging optical system 103 at the limited of desire adjustment, it is the compensation flat board of focusing objective len 115 collocation.Electric-control system 107 except the desire adjustment can be provided limited be that also the startup of external light source 101 is moved and controlled in the fine setting of may command focusing objective len 115, and the power supply supply of low range imaging optical system 103 can also be provided the internal light source 113 of optical system.And the limited of desire adjustment is to have spectroscope 110a in the optical system 110, is used for internal light source 113 is reflected into the incident light of other angles.Low range imaging optical system 103 has the sensitization coupling element, and (Charge Coupled Device CCD), can image in first and second focal spot (101a, 113a) on this sensitization coupling element.
What remark additionally is that the characteristic of focusing objective len is in the designed image position of object lens, can obtain best image quality.But, the internal light source (that is thing of optical system) of optical system is positioned on the optical axis of focusing objective len, when it is assembled in optical system, must there be reference index to be confirmed.Means for correcting of the present invention, promptly pass through the directional light that external light source 101 produces, its directional light direct of travel is parallel with optical axis side's property of optical system, and this directional light is via the formed first focal spot 101a of focusing objective len, by low range imaging optical system 103,101a images on the monitor with this first focal spot, and then the position of the first focal spot 101a that produced of this outside light source 101 promptly can be used as the standard reference position of system optical axis.
When the position of first focal spot is the standard reference position of system optical axis, open the internal light source of optical system at this moment, the light beam line focus object lens of this internal light source produce second focal spot.At this moment, the related elements (focusing objective len or internal light source position) of fine setting optical system allows second focal spot and first focal spot as the reference benchmark be positioned at the relative position of the best, and then this optical system promptly has best imaging effect.
In sum, Fig. 2 is a workflow diagram of optical system assembling bearing calibration of the present invention.With reference to figure 2, at first, adjust light beam that external light source produced and desire adjustment limited be that the optical axis of optical system is parallel, shown in step 201.Adjust the focal plane of low range imaging optical system, make formed first focal spot of parallel beam line focus object lens (or the limited of desire adjustment is formed second focal spot of internal light source line focus object lens of optical system) of external light source image in monitor, shown in step 202.Then, position along any one element of mobile at least focusing objective len of optical axis direction and low range imaging optical system, allow external light source and desire adjustment limited be the light beam that the internal light source of optical system produces, be presented on the monitor via formed first and second focal spot of focusing objective len, shown in step 203.Wherein, in the step 203, the position that can independent mobile focusing objective len or the position of low range imaging optical system; The position of the position of mobile focusing objective len and low range imaging optical system simultaneously.
At last, adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position, shown in step 204.Wherein, in the step 204, can adjust separately focusing objective len or limited be the position of inner any one element of optical system; Simultaneously the position of mobile focusing objective len and limited be the position of any one element of inside of optical system.
Below enumerate three work examples, illustrate and utilize optical system assembling means for correcting (as shown in Figure 1) of the present invention, it finely tunes the element of this means for correcting respectively, allow on the monitor record or intersect and show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system, the limited of convenient adjustment desire adjustment is the position of any one element of inside of optical system, and making the limited of this desire adjustment is the optimum position that optical system is adjusted to imaging easily.
Be without loss of generality, Fig. 3 is the present invention's first work example, and a workflow diagram of optical system assembling bearing calibration is described.In the first work example, system can be by the record external light source the position of formed first focal spot of parallel beam line focus object lens as the reference position, adjusting the limited of desire adjustment is the position of any one element of inside of optical system, reach the desire adjustment limited be that the imaging of optical system is positioned at best relative position.With reference to figure 3, as step 201, adjust light beam that external light source produced and desire adjustment limited be that the optical axis of optical system is parallel.Then, adjust the low range imaging optical system, make formed first focal spot of parallel beam line focus object lens of external light source and image on the monitor, write down this imaging point position, shown in step 302.Then, it is the internal light source of optical system that electric-control system is opened the limited of desire adjustment, at least adjusting low range imaging optical system or focusing objective len moves in optical axis direction, make that desire adjustment limited is that second focal spot of the internal light source line focus object lens of optical system images on the monitor screen, shown in step 303.At last, adjusting the limited of desire adjustment is the position of any one element of inside of optical system, makes the formed imaging point of external light source that is write down in its imaging point and the step 302, is positioned at best relative position, shown in step 304.
Fig. 4 is the present invention's second work example, and a workflow diagram of optical system assembling bearing calibration is described.In the second work example, use is along the focusing objective len of optical axis swing, allow intersect on the monitor and show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system, the limited of convenient adjustment desire adjustment is the position of any one element of inside of optical system, and making the limited of this desire adjustment is the optimum position that optical system is adjusted to imaging easily.With reference to figure 4, as step 201, adjust light beam that external light source produced and desire adjustment limited be that the optical axis of optical system is parallel.Then, adjust the focal plane of low range imaging optical system, formed first focal spot of parallel beam line focus object lens (or the limited of desire adjustment is formed second focal spot of internal light source line focus object lens of optical system) of external light source is imaged on the monitor, shown in step 202.Then, electric-control system is adjusted focusing objective len and is swung in optical axis direction, allows intersect on the monitor show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system, shown in step 403.At last, adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position, shown in step 204.
Fig. 5 is the present invention's the 3rd work example, and a workflow diagram of optical system assembling bearing calibration is described.In the 3rd work example, use is along the low range imaging optical system of optical axis swing, allow intersect on the monitor and show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system, the limited of convenient adjustment desire adjustment is the position of any one element of inside of optical system, and making the limited of this desire adjustment is the optimum position that optical system is adjusted to imaging easily.With reference to figure 5, same as step 201, adjust light beam that external light source produced and desire adjustment limited be that the optical axis of optical system is parallel.Then, adjust the focal plane of low range imaging optical system, formed first focal spot of parallel beam line focus object lens (or the limited of desire adjustment is formed second focal spot of internal light source line focus object lens of optical system) of external light source is imaged on the monitor, shown in step 202.Then, it is the internal light source of optical system that electric control system controls is opened the limited of external light source and desire adjustment simultaneously, and adjust the low range imaging optical system and swing at optical axis direction, allow intersect on the monitor show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system, shown in step 503.At last, adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position, shown in step 204.
What deserves to be mentioned is, owing to have the common M of longitudinal magnification<-1 between its system's thing of focusing objective len and the picture, therefore when adjusting the internal light source of optical system, its relative distance that moves is bigger than formed second focal spot of line focus object lens, so can use the low equipment of adjusting precision, but still can obtain higher adjusting precision at imaging surface at the interior lights source.Because the focal spot of external light source is consistent with the distance that focusing objective len moves; But the limited of desire adjustment is formed second focal spot of internal light source line focus object lens of optical system, and when focusing objective len moved, its focusing objective len displacement and the second focal spot displacement were also inequality; Therefore, when mobile focusing objective len position, can make first and second two focal spots be positioned at the optimum position.And limited is in the optical system, and comprising at least one focusing objective len, and this focusing objective len also can be by corrective system of the present invention, and finding out limited is the optimal imaging position of optical system.
The above only for the most preferred embodiment of invention, can not limit scope of the invention process according to this.Be that all equalizations of doing according to claim of the present invention change and modify, all should still belong in the scope that patent of the present invention contains.

Claims (11)

1. optical system assembling means for correcting, being applied to limited is in the optical system so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this device comprises:
External light source;
The low range imaging optical system;
Electric-control system;
Monitor;
The light beam that this external light source produces, entering this of institute's desire adjustment limited is in the optical system, via this focusing objective len, forms first focal spot; It is this internal light source of optical system that this electric-control system starts this of desire adjustment limited, allows the light beam of this internal light source via this focusing objective len, forms second focal spot; Then, this low range imaging optical system amplifies this first focal spot and this second focal spot imaging, and supervises by monitor; Adjusting this limited is any one element of this internal light source of optical system or the position of this focusing objective len, to obtain best image quality.
2. optical system assembling means for correcting as claimed in claim 1, wherein the light beam of this external light source generation is a directional light.
3. optical system as claimed in claim 1 assembling means for correcting, wherein should be limited be also to comprise glass cover-plate between optical system and this low range imaging optical system, this glass cover-plate is the compensation flat board of arranging in pairs or groups with this focusing objective len.
4. optical system assembling means for correcting as claimed in claim 1, wherein this external light source is moved, starts in the fine setting of this this focusing objective len of electric control system controls, or provides power supply to this low range imaging optical system.
5. optical system assembling bearing calibration, being applied to limited is in the optical system so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this method comprises the following step:
A. the light beam of adjusting external light source and being produced is limited with this to be that the optical axis of optical system is parallel;
B. adjust the focal plane of low range imaging optical system, make formed first focal spot of parallel beam line focus object lens of external light source or desire adjustment limited be formed second focal spot of internal light source line focus object lens of optical system and imaging on the monitor;
C. move any one element of this low range imaging optical system and the position of this focusing objective len at least along optical axis direction, making this external light source and this limited is the light beam of this internal light source generation of optical system, is presented on the monitor via formed first focal spot of this focusing objective len and second focal spot; And
D. adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position.
6. optical system assembling bearing calibration as claimed in claim 5 wherein in this steps d, can be adjusted the position of this focusing objective len, to obtain best image quality.
7. optical system assembling bearing calibration as claimed in claim 5, wherein in this steps d, can adjust this limited is the position of this any one element of inside of optical system, to obtain best image quality.
8. optical system assembling bearing calibration as claimed in claim 5, wherein in this steps d, can adjust this focusing objective len simultaneously limited with this is the position of this any one element of inside of optical system, to obtain best image quality.
9. optical system assembling bearing calibration, being applied to limited is in the optical system so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this method comprises the following step:
A. the light beam of adjusting external light source and being produced is limited with this to be that the optical axis of optical system is parallel;
B. adjust the low range imaging optical system, the parallel beam that makes this external light source is through formed first focal spot of this focusing objective len and image on the monitor, writes down this imaging point position;
C. the limited of electric-control system unlatching desire adjustment is the internal light source of optical system, at least adjust low range imaging optical system or focusing objective len and move, make that desire adjustment limited is that second focal spot of the internal light source line focus object lens of optical system images on the monitor screen in optical axis direction; And
D. adjusting this of desire adjustment limited is the position of this any one element of inside of optical system, makes the formed imaging point of this external light source that is write down among its imaging point and the step B, is positioned at best relative position.
10. optical system assembling bearing calibration, being applied to limited is in the optical system so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this method comprises the following step:
(1). adjusting light beam that external light source produced limited with this is that the optical axis of optical system is parallel;
(2). adjust the focal plane of low range imaging optical system, make formed first focal spot of parallel beam line focus object lens of external light source or desire adjustment limited be formed second focal spot of internal light source line focus object lens of optical system and imaging on the monitor;
(3). electric-control system is adjusted focusing objective len and is swung in optical axis direction, allows intersect on the monitor show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system; And
(4). adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position.
11. optical system assembling bearing calibration, being applied to limited is in the optical system so that this limited be to have the optimal imaging position between the internal light source of optical system and the focusing objective len, this method comprises the following step:
I. the light beam of adjusting external light source and being produced is limited with this to be that the optical axis of optical system is parallel;
II. adjust the focal plane of low range imaging optical system, make formed first focal spot of parallel beam line focus object lens of external light source or desire adjustment limited be formed second focal spot of internal light source line focus object lens of optical system and imaging on the monitor;
III. to open the limited of external light source and desire adjustment simultaneously be the internal light source of optical system to electric control system controls, and adjust the low range imaging optical system and swing at optical axis direction, allow intersect on the monitor show that the limited of desire adjustment is the internal light source and formed two focal spots of external light source line focus object lens of optical system; And
IV. adjust at least focusing objective len or limited be the position of inner any one element of optical system, make to be adjusted limited be that formed second focal spot of internal light source line focus object lens of optical system is positioned at best image height position.
CN2008101005399A 2008-05-20 2008-05-20 Device and method for correcting optical system assembling Expired - Fee Related CN101587244B (en)

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GB2137746A (en) * 1983-04-05 1984-10-10 Hewlett Packard Co Apparatus for Detecting Deviations of Position from a Reference
CN1201230A (en) * 1997-02-17 1998-12-09 索尼公司 Objective glass, reproducing apparatus and method thereof
CN1210335A (en) * 1997-08-30 1999-03-10 三星电子株式会社 Optical pickup apparatus and method
KR20030019689A (en) * 2001-08-30 2003-03-07 삼성전자주식회사 Optic pickup apparatus comprising a optical axes compensating beam splitter and method of compensating of optic axes using the same
CN1979655A (en) * 2005-12-07 2007-06-13 台睿科技股份有限公司 Optical read-write head

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137746A (en) * 1983-04-05 1984-10-10 Hewlett Packard Co Apparatus for Detecting Deviations of Position from a Reference
CN1201230A (en) * 1997-02-17 1998-12-09 索尼公司 Objective glass, reproducing apparatus and method thereof
CN1210335A (en) * 1997-08-30 1999-03-10 三星电子株式会社 Optical pickup apparatus and method
KR20030019689A (en) * 2001-08-30 2003-03-07 삼성전자주식회사 Optic pickup apparatus comprising a optical axes compensating beam splitter and method of compensating of optic axes using the same
CN1979655A (en) * 2005-12-07 2007-06-13 台睿科技股份有限公司 Optical read-write head

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