CN101388259B - Optical clamp control device - Google Patents
Optical clamp control device Download PDFInfo
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- CN101388259B CN101388259B CN2007101453511A CN200710145351A CN101388259B CN 101388259 B CN101388259 B CN 101388259B CN 2007101453511 A CN2007101453511 A CN 2007101453511A CN 200710145351 A CN200710145351 A CN 200710145351A CN 101388259 B CN101388259 B CN 101388259B
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Abstract
The invention relates to a light schnabel control device, which comprises a light source, an objective lens and a focusing adjustment unit, wherein the focusing adjustment unit is arranged between the light source and the objective lens, and comprises a surface mirror group and a variable focus lens group. The surface mirror group comprises at least a surface mirror, and the surface mirror is arranged in a rotate type to change an emergence angle after optical lines of the light source are irradiated on the surface mirror. The variable focus lens group comprises at least a zoom lens, and the variable focus lens is arranged corresponding to the surface mirror. The optical lines can move on a focal plane or the front side or the rear side of the focal plane through a focus position of the objective lens through rotating the surface mirror or changing the focal length of the zoom lens. The light schnabel control device is matched with the variable focus lens group through the surface mirror group, and the focus position of laser can optionally change in space.
Description
Technical field
The present invention relates to a kind of optical clamp control device, and particularly relate to a kind of optical clamp control device that in the space, changes the light jaw positions arbitrarily.
Background technology
Use the light clamp technology of laser focusing be applied at present micro electronmechanical, give birth in the field such as doctor.Because laser can produce the effect that is similar to seizure to particle, can control the motion of a plurality of particles thus.Yet in the mechanism of control particle movement, the optical pressure gradient that particle is received changes, and particle is produced be similar to straight line, deviation or vortex movement.
In addition, though light clamp technology is very helpful controlling on the micron-sized particle, only need controls the particle on the focussing plane at present, thereby can't reach the motion of controlling particle in the space flexibly through the focusing of laser.
Summary of the invention
The present invention relates to a kind of optical clamp control device, use, the focal position of laser can be changed arbitrarily in the space through the collocation of face mirror group and Zoom lens group.
The invention provides a kind of optical clamp control device, this device comprises: light source, object lens and focus adjustment unit.Focus adjustment unit is arranged between light source and the object lens, and comprises face mirror group and Zoom lens group.Face mirror group comprises at least one face mirror, and this face mirror is provided with rotating mode, with the irradiate light that the changes light source shooting angle behind the face mirror.The Zoom lens group comprises at least one zoom lens, and this zoom lens corresponding surface mirror is provided with.Wherein, through the plane of rotation mirror or change the focal length of zoom lens, can make light through the focal position of object lens in the focal plane or front side, focal plane or rear side move.
According to optical clamp control device of the present invention, wherein this face mirror group comprises a plurality of face mirrors that are provided with rotary way.
According to optical clamp control device of the present invention, wherein the face mirror of this face mirror group is arranged with many groups form.
According to optical clamp control device of the present invention, wherein this Zoom lens group comprises a plurality of zoom lens.
According to optical clamp control device of the present invention, wherein the zoom lens of this Zoom lens group are arranged with many groups form.
According to optical clamp control device of the present invention, wherein these zoom lens are liquid lens (liquid lens) or electric liquid lens (electro-liquid lens).
According to optical clamp control device of the present invention, wherein this face mirror group be digital micromirror elements (digital mirror device, DMD).
According to optical clamp control device of the present invention, wherein this Zoom lens group is arranged between this face mirror group and this object lens.
According to optical clamp control device of the present invention, also comprise: first lens combination, between this face mirror group and this Zoom lens group; And second lens combination, between this Zoom lens group and this object lens.
According to optical clamp control device of the present invention, also comprise: the polar biased spectroscope, between this face mirror group and this Zoom lens group; And quarter wave plate, be arranged between this face mirror group and this polar biased spectroscope.
According to optical clamp control device of the present invention, wherein this light source is a lasing light emitter.
The present invention also provides a kind of optical clamp control device, and this device comprises: light source, object lens and focus adjustment unit.Focus adjustment unit is arranged between light source and the object lens, and comprises face mirror group.Face mirror group has at least one row face mirror, and this row face mirror comprises a plurality of rotating mirrors.These face mirrors are in order to the irradiate light that the changes light source shooting angle after the face mirror group, and through rotating these face mirrors, light are moved in the focal plane of object lens through the focal position of object lens.
According to optical clamp control device of the present invention, wherein this focus adjustment unit comprises that also the Zoom lens group is to should the setting of face mirror group.
According to optical clamp control device of the present invention, wherein this Zoom lens group is arranged between this face mirror group and this object lens.
According to optical clamp control device of the present invention, also comprise: first lens combination, between this face mirror group and this Zoom lens group; And second lens combination, between this Zoom lens group and this object lens.
According to optical clamp control device of the present invention, also comprise: the polar biased spectroscope, between this face mirror group and this Zoom lens group; And quarter wave plate, be arranged between this face mirror group and this polar biased spectroscope.
According to optical clamp control device of the present invention, wherein this face mirror group is a digital micromirror elements.
The present invention also provides a kind of optical clamp control device, and this device comprises: light source, object lens and focus adjustment unit.Focus adjustment unit is arranged between light source and the object lens, and comprises at least one row zoom lens.Wherein, through changing the focal length of each zoom lens, the light of light source is moved in front side, focal plane or rear side through the focal position of object lens.
According to optical clamp control device of the present invention, wherein this focus adjustment unit comprises that also at least one row face mirror is to should the setting of row zoom lens.
According to optical clamp control device of the present invention, wherein these row zoom lens are between this face mirror and this object lens.For making the foregoing of the present invention can be more obviously understandable, hereinafter is special lifts preferred embodiment, and combines appended accompanying drawing, elaborates as follows:
Description of drawings
Fig. 1 shows the synoptic diagram of optical clamp control device according to the preferred embodiment of the invention.
Fig. 2 shows the synoptic diagram of the zoom lens change focal length of Fig. 1.
Fig. 3 shows the synoptic diagram of the face mirror rotational angle of Fig. 1.
Fig. 4～5 show the synoptic diagram of the zoom lens change focal length of Fig. 3.
Embodiment
The optical clamp control device that present embodiment discloses comprises light source, object lens and focus adjustment unit.This focus adjustment unit comprises face mirror group and Zoom lens group, and wherein focus adjustment unit is between light source and object lens.Through the face mirror or the conversion Zoom lens group of plane of rotation mirror group, the focal position of light on the focal plane of object lens changed, perhaps make the focal position change of light at front side, focal plane or rear side.Following accompanying drawing specifies the design of optical clamp control device.
With reference to Fig. 1, it shows the synoptic diagram of optical clamp control device according to the preferred embodiment of the invention.As shown in Figure 1, optical clamp control device 1 comprises light source 100, object lens 110 and focus adjustment unit, and wherein focus adjustment unit is arranged between light source 100 and the object lens 110.Focus adjustment unit comprises face mirror group 120 and Zoom lens group 130.Face mirror group 120 comprises at least one face mirror, and this face mirror is provided with rotating mode, with the irradiate light that changes light source 100 shooting angle behind the face mirror.Zoom lens group 130 comprises at least one zoom lens, and this zoom lens corresponding surface mirror is provided with.Wherein, through the plane of rotation mirror or change the focal length of zoom lens, FP or FP front side, focal plane or rear side move in the focal plane through the focal position of object lens can to make light.The light source 100 of present embodiment for example is a lasing light emitter.Because the directive property of laser is high and have high strength, is suitable as very much light source 100 and uses.
About the configuration of focus adjustment unit, its Zoom lens group 130 is preferably placed between face mirror group 120 and the object lens 110.As shown in Figure 1, optical clamp control device 1 also comprises first lens combination 140, second lens combination 150,160 and quarter wave plates of polar biased spectroscope (polarized beam splitter) (quarter wave plate) 170.First lens combination 140 is between face mirror group 120 and Zoom lens group 130, and 150 of second lens combination are between Zoom lens group 130 and object lens 110.Polar biased spectroscope 160 is between the face mirror group 120 and first lens combination 140, and 170 of quarter wave plates are arranged between face mirror group 120 and the polar biased spectroscope 160.
In the present embodiment, face mirror group 120 comprises a plurality of rotating mirrors 121～123, and Zoom lens group 130 comprises a plurality of zoom lens 131～133.Wherein face mirror 121～123 all becomes row to arrange with zoom lens 131～133.Face mirror group 120 can be digital micromirror elements (DMD), has a plurality of rotating little eyeglasses on it, with the shooting angle of any adjustment light.131～133 of zoom lens for example are liquid lens, or are preferably electric liquid lens.The electricity liquid lens can change its thickness applying the state of different voltages under, so during as the element of Zoom lens group 130, can adjust the focal length of himself with electric liquid lens.
The laser (line polar biased light) that penetrates when light source 100 is during from a side incident of polar biased spectroscope 160, and polar biased spectroscope 160 can make laser deviation and directive quarter wave plate 170.The face mirror of meeting directive face mirror group 120 behind the laser penetration quarter wave plate 170, for example the face mirror 121.After laser also penetrates quarter wave plate 170 once more by 121 reflections of face mirror, can incide polar biased spectroscope 160 once more.Then, laser just passes the zoom lens 133 and second lens combination 150 of first lens combination 140, Zoom lens group 130 in regular turn.At last, laser convergence Jiao FP goes up (for example focal position M1) in the focal plane of object lens 110.Because any face mirror can rotate on the face mirror group 120, and each zoom lens on the Zoom lens group 130 also can change its focal length, therefore can control arbitrarily laser on the FP of focal plane, the focal position of FP front side, focal plane or rear side.
With reference to Fig. 2, its zoom lens that show Fig. 1 change the synoptic diagram of focal length.As shown in Figure 2, make the less thick of zoom lens 133 separately after.Because the focal length of zoom lens size is inversely proportional to thickness, thereby during the less thick of zoom lens 133, it is big that its focal length can become.Behind laser penetration second lens combination 150 and object lens 110, the rear side of laser convergence Jiao FP (for example focal position M2) in the focal plane.Otherwise big if the thickness of zoom lens 133 becomes, then the focal length of zoom lens 133 can diminish, and makes the precedent of laser focusing in focal plane of lens.Like this,, just can change the focal position of laser, make its front side of dropping on focal plane FP or rear side as long as adjust the thickness of arbitrary zoom lens on the Zoom lens group 130.
Then with reference to Fig. 3, it shows the synoptic diagram of the face mirror rotational angle of Fig. 1.As shown in Figure 3, only let the face mirror 121 of face mirror group 120 clockwise rotate a low-angle.Because face mirror 121 has changed the shooting angle of laser radiation behind the face mirror 121; Make laser incide polar biased spectroscope 160 obliquely jointly; And penetrate first lens combination 140, zoom lens 133, second lens combination 150 and object lens 110, last laser convergence Jiao other position (for example focal position M3) on the FP of focal plane successively.
Certainly, also can adjust the focal length of the zoom lens of face mirror rotational angle and Zoom lens group 130 on the face mirror group 120 simultaneously.With reference to Fig. 4～5, its zoom lens that show Fig. 3 change the synoptic diagram of focal length.After mirror 121 rotated an angle face to face, laser transformed to focal position M3 (referring to Fig. 1 and Fig. 3) by original focal position M1.At this moment, as shown in Figure 4 if adjust the thickening that the thickness of zoom lens 133 makes again, then because the focal length of zoom lens 133 size is inversely proportional to thickness, the focal position of laser will transform to the front side (for example focal position M4) of focal plane FP.Otherwise if the thickness of zoom lens 133 is reduced, as shown in Figure 5, then the focal position of laser will transform to the rear side (for example focal position M5) of focal plane FP.
Though the face mirror group 120 of present embodiment is to explain with the face mirror 121～123 that becomes row to arrange, and Zoom lens group 130 is to explain that with the zoom lens 131～133 that comprise into the row arrangement the present invention is not limited to this.In other embodiments, face mirror group 120 can comprise a plurality of mirrors and zoom lens with Zoom lens group 130.Preferably, these face mirrors or zoom lens are arranged on the plane with many groups form, and a face mirror is corresponding zoom lens setting.Like this, optical clamp control device 1 focuses on except front side or the rear side that can control laser FP in the focal plane, can also further control the focal position of laser on the FP of focal plane up and down along different path movement.
In addition, though the optical clamp control device 1 of present embodiment explain with Zoom lens group 130, yet in other embodiments, also can only use rotating mirror operation of general optical lens collocation.For instance, but can a plurality of lens be arranged in the mechanism that an opposite face mirror group 120 moves.Like this, towards moving away from face mirror group 120 or near face mirror group 120, the focal position that also can change laser is front side, focal plane or rear side through mechanism's drive lens.
The optical clamp control device 1 of present embodiment for example is applied to control the particle movement of micro-fluidic system.According to the demand of practical operation, adjust each circuit elements design parameter in the optical clamp control device 1, for example select lens combination with suitable focal length and quantity thereof, object lens, polar biased spectroscope etc. for use, make the focal position of laser be positioned at preset range.When operation; The detection test specimen that carries particle is arranged in this preset range; Through the rotational angle of adjustment face mirror, the focal length size of change focus lens, therefore the focal position of just convertible laser in the space make the particle that is captured by the light clamp move thereupon.
The optical clamp control device that the above embodiment of the present invention disclosed is the collocation operation through face mirror group and lens combination, make optical clamp control device can be in the space focal position of conversion laser arbitrarily.
In sum, though the present invention with the preferred embodiment disclosure as above, yet it is not in order to limit the present invention.Those of ordinary skills under the situation that does not deviate from the spirit and scope of the present invention, can do various changes and modification.Therefore, protection scope of the present invention should be as the criterion with what accompanying claims was limited subsequently.
The primary clustering symbol description
1: optical clamp control device 100: light source
110: object lens 120: face mirror group
121～123: face mirror 130: the Zoom lens group
131～133: 140: the first lens combination of zoom lens
170: quarter wave plate FP: focal plane
M1～M5: focal position
Claims (10)
1. an optical clamp control device (1) comprising:
Light source (100) is used to produce light;
Object lens (110) have the focal plane; And
Focus adjustment unit is arranged between said light source (100) and the said object lens (110), and said focus adjustment unit comprises:
Face mirror group (120) comprises at least one face mirror, and said mirror is provided with rotating mode, changes the shooting angle after said irradiate light arrives said mirror; And
Zoom lens group (130); Comprise at least one zoom lens, corresponding said the mirror setting of said zoom lens, said zoom lens can change its focal length; Wherein, said Zoom lens group (130) is arranged between said mirror group (120) and the said object lens (110);
Said optical clamp control device (1) also comprises: first lens combination (140) is positioned between said mirror group (120) and the said Zoom lens group (130); And second lens combination (150), be positioned between said Zoom lens group (130) and the said object lens (110);
Wherein, said mirror all becomes row to arrange with said zoom lens, through rotating said mirror or changing the focal length of said zoom lens, make said light through the focal position of said object lens (110) in said focal plane or front side, said focal plane or rear side move.
2. optical clamp control device according to claim 1 (1), wherein, said mirror group (120) comprises a plurality of face mirrors that are provided with rotary way.
3. optical clamp control device according to claim 2 (1), wherein, said mirror of said mirror group (120) arranged with many groups form.
4. optical clamp control device according to claim 1 (1), wherein, said Zoom lens group (130) comprises a plurality of zoom lens.
5. optical clamp control device according to claim 4 (1), wherein, the said zoom lens of said Zoom lens group (130) are arranged with many groups form.
6. optical clamp control device according to claim 1 (1), wherein, said zoom lens are liquid lens or electric liquid lens.
7. optical clamp control device according to claim 1 (1), wherein, said mirror group (120) is digital micromirror elements.
8. optical clamp control device according to claim 1 (1), wherein, said light source (100) is a lasing light emitter.
9. an optical clamp control device (1) comprising:
Light source (100) is used to produce light;
Object lens (110) have the focal plane; And
Focus adjustment unit; Be arranged between said light source (100) and the said object lens (110), said focus adjustment unit comprises face mirror group (120), and said mirror group (120) has at least one row face mirror; Said row face mirror comprises a plurality of rotating mirrors; Said mirror is used for changing the shooting angle after said irradiate light arrives said mirror group (120), and wherein, said focus adjustment unit also comprises Zoom lens group (130); Corresponding said mirror group (120) is provided with, and said Zoom lens group (130) is arranged between said mirror group (120) and the said object lens (110);
Said optical clamp control device (1) also comprises: first lens combination (140) is positioned between said mirror group (120) and the said Zoom lens group (130); And second lens combination (150), be positioned between said Zoom lens group (130) and the said object lens (110);
Wherein, said mirror all becomes row to arrange with said zoom lens, through rotating said mirror, said light moved in said focal plane through the focal position of said object lens (110).
10. optical clamp control device according to claim 9 (1), wherein, said mirror group (120) is digital micromirror elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101453511A CN101388259B (en) | 2007-09-11 | 2007-09-11 | Optical clamp control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101453511A CN101388259B (en) | 2007-09-11 | 2007-09-11 | Optical clamp control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101388259A CN101388259A (en) | 2009-03-18 |
| CN101388259B true CN101388259B (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101453511A Expired - Fee Related CN101388259B (en) | 2007-09-11 | 2007-09-11 | Optical clamp control device |
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| Country | Link |
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| CN (1) | CN101388259B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534641A (en) * | 2003-03-31 | 2004-10-06 | ���Ῠ���ܴ�ع���ʽ���� | Light picking device and objective lens therefor |
| CN1540435A (en) * | 2003-04-24 | 2004-10-27 | 明基电通股份有限公司 | Projecting unit inside portable electronic equipment |
| CN1838277A (en) * | 2005-01-20 | 2006-09-27 | 柯尼卡美能达精密光学株式会社 | Optical pickup apparatus |
-
2007
- 2007-09-11 CN CN2007101453511A patent/CN101388259B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534641A (en) * | 2003-03-31 | 2004-10-06 | ���Ῠ���ܴ�ع���ʽ���� | Light picking device and objective lens therefor |
| CN1540435A (en) * | 2003-04-24 | 2004-10-27 | 明基电通股份有限公司 | Projecting unit inside portable electronic equipment |
| CN1838277A (en) * | 2005-01-20 | 2006-09-27 | 柯尼卡美能达精密光学株式会社 | Optical pickup apparatus |
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| Publication number | Publication date |
|---|---|
| CN101388259A (en) | 2009-03-18 |
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