CN102411200A - Coaxial light-extraction-type digital microscope - Google Patents
Coaxial light-extraction-type digital microscope Download PDFInfo
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- CN102411200A CN102411200A CN2010102914447A CN201010291444A CN102411200A CN 102411200 A CN102411200 A CN 102411200A CN 2010102914447 A CN2010102914447 A CN 2010102914447A CN 201010291444 A CN201010291444 A CN 201010291444A CN 102411200 A CN102411200 A CN 102411200A
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Abstract
A digital microscope provided in the invention comprises: an image sensing circuit, which possesses an image sensing area; a first objective lens, which is arranged along one axis with the image sensing area; a light emitting device, which is arranged out of the axis and emits light towards a direction that is not coaxial with the axis; a light steering gear, which is arranged out of the axis and is used to change the direction of the light emitted from the light emitting device; a light splitting apparatus, which is arranged on the axis and is used to change a path of the light transmitted by the light steering gear so as to provide the light which is coaxial with the axis and is virtually output along the axis. The first objective lens is positioned between the image sensing area and the light splitting apparatus. The light, which is provide by the light splitting apparatus, is coaxial with the axis and is virtually output along the axis, can make the surface detail image of an object to be measured obtained by the digital microscope possess good sharpness and stereo perception. Therefore, an observer can clearly acquire subtle conditions of the surface of the object to be measured.
Description
Technical field
The relevant digital microscope of the present invention is technological, refers to a kind of digital microscope of coaxial light output formula especially.
Background technology
The application of digital microscope is quite extensive, after particularly the digital microscope of hand-held comes out, has more enlarged possible range of application and has promoted the convenience that uses.
Yet in running, the light between handheld digital microscope and determinand usually can influence the image quality of digital microscope.Be subject to the intensity of light and the angle of light, existing handheld digital microscope is unsatisfactory aspect the image definition of determinand surface details and relief performance, causes the observer to be difficult to the clear trickle situation of learning the determinand surface.
Summary of the invention
In view of this, how improving image definition and the stereoscopic sensation of handheld digital microscope for the determinand surface details, is that industry has problem to be solved really.
This instructions provides a kind of embodiment of digital microscope, and it includes: an image sensing circuit has an image sensing district on it; One first object lens are arranged along an axis with this image sensing district; One light-emitting device is arranged at outside this axis, and its light that sends not with this axis coaxle; One turn light rays device is arranged at outside this axis, is used for the turn light rays that this light-emitting device is sent; And a light-dividing device, be positioned on this axis, be used for changing the path of the light that this turn light rays device transmits, to provide with this axis coaxle and in fact along the light of this axis output; Wherein these first object lens are between this image sensing district and this light-dividing device.
This instructions provides a kind of embodiment of digital microscope, and it includes: an image sensing circuit has an image sensing district on it; One object lens are arranged along an axis with this image sensing district; One light-emitting device is arranged at outside this axis, is used for towards not emitting beam with the direction of this axis coaxle; One turn light rays device is arranged at outside this axis, is used for the turn light rays that this light-emitting device is sent; One light-dividing device is positioned on this axis, is used to change the path of the light that this turn light rays device transmits, to provide with this axis coaxle and in fact along the light of this axis output; One anti-reflex reflector is arranged at the side of this light-dividing device with respect to this turn light rays device, is used to receive the transmitted light of coming via this light-dividing device transmission; One first polaroid is arranged on this light-emitting device to the optical path of this light-dividing device; And one second polaroid, be arranged on this light-dividing device to the optical path in this image sensing district; Wherein this first polaroid is vertical in fact with the polarizing angle of this second polaroid, and these object lens are between this image sensing district and this light-dividing device.
One of advantage of previous embodiment is, can make the image of the resulting determinand surface details of digital microscope, has better sharpness and stereoscopic sensation, lets the observer can clearly obtain the trickle situation on determinand surface.
Another advantage of previous embodiment is, can reduce the required light-emitting component number of light-emitting device, the required energy in the time of more saving the digital microscope running.
Description of drawings
Fig. 1 is the synoptic diagram after microscopical first embodiment of handheld digital of the present invention simplifies.
Fig. 2 is the synoptic diagram after microscopical second embodiment of handheld digital of the present invention simplifies.
Fig. 3 is the synoptic diagram after microscopical the 3rd embodiment of handheld digital of the present invention simplifies.
Fig. 4 is the synoptic diagram after microscopical the 4th embodiment of handheld digital of the present invention simplifies.
Fig. 5 is the synoptic diagram after microscopical the 5th embodiment of handheld digital of the present invention simplifies.
Fig. 6 is the synoptic diagram after microscopical the 6th embodiment of handheld digital of the present invention simplifies.
Fig. 7 is the synoptic diagram after microscopical the 7th embodiment of handheld digital of the present invention simplifies.
Fig. 8 is the synoptic diagram after microscopical the 8th embodiment of handheld digital of the present invention simplifies.
[main element symbol description]
100,200,300,400,500,600,700,800 digital microscopes
102 axis
104 target objects
110 image sensing circuit
112 image sensing districts
120,890 object lens
130 light-emitting devices
140,240,340 turn light rays devices
150 light-dividing devices
162,164,678,680,780 polaroids
242 convex lens
342 incidence surfaces
344 echo areas
346 exiting surfaces
470,570,670,770 anti-reflex reflectors
572 reflecting elements
574 fixtures
576 reflectings surface
Embodiment
Below will cooperate correlative type that embodiments of the invention are described.In these were graphic, identical label was represented identical or similar assembly.
In the middle of instructions and follow-up claim, used some vocabulary to censure specific element.Those skilled in the art should understand, and same element may be called with different nouns.This instructions and follow-up claim are not come as the mode of distinguishing element with the difference of title, but come as the benchmark of distinguishing with the difference of element on function.Be an open term mentioned " comprising " in the middle of instructions and the follow-up claim in the whole text, so should be construed to " comprise but be not limited to ... ".
Fig. 1 illustrate is the synoptic diagram of the handheld digital microscope of first embodiment of the invention 100 after simplifying.In the present embodiment, digital microscope 100 has the tubular shell (not being illustrated among the figure) of a hollow.In the tubular shell of digital microscope 100, include an image sensing circuit 110, object lens 120, a light-emitting device (Luminance Device) 130, one turn light rays device (Light Redirector) 140 and one light-dividing device (Beam Splitter) 150.Image sensing circuit 110 includes one or more CMOS (Complementary Metal Oxide Semiconductor) sensor, CCD (ChargeCoupled Device) sensor, the hybrid sensor of CMOS/CCD, CID (Charge InjectionDevice) sensor or other photo-sensitive cells; Be used for the image on sensing one target object 104 surface, and produce corresponding image signal.As shown in the figure, have an image sensing district 112 on the image sensing circuit 110, let the light of returning can incide the sensor the image sensing circuit 110 from the surface reflection of target object 104.
In one embodiment; Image sensing circuit 110 sees through a predetermined transmission interface (for example USB interface, 1394 interfaces or the like) except meeting; The image signal that produces is returned to outside computer that couples or the detection system (not being illustrated among the figure), also can see through this transmission interface and receive the required electric power of digital microscope 100 runnings from this computer or detection system.
In digital microscope 100, the image sensing district 112 of object lens 120, image sensing circuit 110 and light-dividing device 150 are to arrange along an axis 102, and object lens 120 are between image sensing district 112 and light-dividing device 150.On real the work, can the spacing of object lens 120 with image sensing district 112 be designed to comply with the framework that needs adjustment, to increase the available multiplying power of digital microscope 100.For example, in the housing of digital microscope 100, a telescopic tube assembly can be set, object lens 120 or image sensing circuit 110 can be moved along axis 102 in the inside of this telescopic tube assembly, with the focal length or the multiplying power of adjustment digital microscope 100.Perhaps; Also can utilize one or more guide element (for example structures such as guide bar, director strip, screw thread); The suitable binding structure of arranging in pairs or groups is connected with object lens 120 or image sensing circuit 110; Object lens 120 or image sensing district 112 can be moved along axis 102 by the mode of slip or turn on guide element.
In digital microscope 100,, can light-emitting device 130 be arranged at the place outside the axis 102 for avoiding having influence on the path that the light of returning from the surface reflection of target object 104 gets into image sensing circuit 110.In addition, because digital microscope 100 is devices of hand-held, for the ease of using and gripping, it is too big that the volume of digital microscope 100 and width can not design, and makes that the enclosure interior space of digital microscope 100 is quite limited.Light-emitting device 130 is arranged to directly to need the shell space of broad towards the luminous configuration mode of light-dividing device 150, also can causes the width of digital microscope 100 to increase.Therefore, in the embodiment in figure 1, light-emitting device 130 be arranged to towards not luminous with the coaxial direction of axis 102, and directly not luminous towards light-dividing device 150.That is, can't be coaxial from the light that light-emitting device 130 directly penetrates with axis 102, can directly not get into light-dividing device 150 yet, use the housing that makes digital microscope 100 and can have width smaller.On real the work, light-emitting device 130 can be realized with LED matrix, to save required electric power.
Turn light rays device 140 also is to be arranged at outside the axis 102, in order to avoid have influence on the path that the light of returning from the surface reflection of target object 104 gets into image sensing circuit 110.Turn light rays device 140 is understood the direction of the turn light rays light-dividing device 150 that light-emitting device 130 is sent.In one embodiment, turn light rays device 140 available fiber realize.
Light-dividing device 150 can change the path of the light that transmits from turn light rays device 140; The light of also exporting along axis 102 in fact with axis 102 coaxial (coaxial) is provided; With the surface of illumination target object 104, and make the light of returning get into image sensing circuit 110 along axis 102 from the surface reflection of target object 104.
Because light shines the path on target object 104 surfaces from digital microscope 100; And light returns to get into the path of image sensing circuit 110 from the surface reflection of target object 104; The both is along axis 102; So resulting roughness (Roughness) or relevant details image of flatness (Smoothness) with target object 104 surfaces of digital microscope 100; Can come more clearly and stereoscopic sensation is more arranged than existing digital microscope, let the observer can more clearly learn the trickle situation that target object 104 is surperficial, for example the details that just rises and falls such as scratch, washmarking.
On real the work, can utilize one or more guide element (for example structure such as guide bar, director strip), the suitable binding structure of arranging in pairs or groups is connected with light-dividing device 150, and light-dividing device 150 can be moved along axis 102 by the mode of on guide element, sliding.When light-dividing device 150 when axis 102 moves, turn light rays device 140 also will be along with moving together or rotating.
Know that by aforementioned the light that light-emitting device 130 is sent via the optical effect of turn light rays device 140 and light-dividing device 150, can change into and axis 102 coaxial and light that export along axis 102 in fact at last.Therefore, most of light of being sent of light-emitting device 130 can be effectively utilized on illumination target object 104.Such design can significantly promote the light utilization ratio of light-emitting device 130, reduces required light-emitting component number.For example, when realizing light-emitting device 130, only need to use a LED just can provide digital microscope 100 enough illuminating raies, the required energy in the time of effectively saving digital microscope 100 runnings with LED matrix.
In another embodiment; Can to the optical path of light-dividing device 150, add a polaroid 162 at light-emitting device 130; And at light-dividing device 150 to the optical path in image sensing district 112; Add a polaroid 164 along axis 102, and both polarizing angles of polaroid 162 and polaroid 164 are vertical in fact.Polaroid 162 can be arranged between light-emitting device 130 and the turn light rays device 140, or between turn light rays device 140 and the light-dividing device 150.Polaroid 164 can be arranged between light-dividing device 150 and the object lens 120, or between object lens 120 and the image sensing district 112.On real the work, also can utilize suitable bindiny mechanism (for example articulating mode) to be arranged to packaged type or rotary type polaroid 162, the user can polaroid 162 selfluminous devices 130 be removed to the optical path of light-dividing device 150.Similarly, also can utilize suitable bindiny mechanism (for example articulating mode) to be arranged to packaged type or rotary type polaroid 164, the user can polaroid 164 be removed on axis 102.
When polaroid 162 not at light-emitting device 130 to the optical path of light-dividing device 150; Or polaroid 164 was not in 102 last times of axis; The image of image sensing circuit 110 detected target objects 104; Mainly can be based on by 130 of light-emitting devices and send, and obtain along the light that axis 102 reflects from the surface of target object 104.
When polaroid 162 is positioned at light-emitting device 130 to the optical path of light-dividing device 150; And polaroid 164 is positioned at 102 last times of axis; The image of image sensing circuit 110 detected target objects 104; Mainly can be based on and send, and the light of being returned by the surface diffusion of target object 104 obtains by other environment light sources.
By the mode that moves or rotate polaroid 162 and/or polaroid 164, the user can obtain the observation image under the Different Light and compare, and then the roughness or the relevant details of flatness on target object 104 surfaces are had the more understanding of relativity.
Fig. 2 is the synoptic diagram after the handheld digital microscope 200 of second embodiment of the invention is simplified.In the embodiment of Fig. 2, the turn light rays device 240 of digital microscope 200 is to realize with a reflecting surface (a for example minute surface or highly reflective surface).In addition, in a side of light-dividing device 150, that is between turn light rays device 240 and the light-dividing device 150, also be provided with convex lens 242.The irradiate light that produces when light-emitting device 130 can be reflected onto convex lens 242 during to turn light rays device 240, and the directive light-dividing device 150 again.In another embodiment; The light that convex lens 242 can reflect back turn light rays device 240 converts parallel in fact light directive light-dividing device 150 to; Making from the light of light-dividing device 150 directive target objects 104, can be the directional light that penetrates along axis 102 in fact.
The polaroid of being mentioned among the embodiment of earlier figures 1 162 can be arranged between the light-emitting device 130 and turn light rays device 240 of Fig. 2, between turn light rays device 240 and the convex lens 242 or between convex lens 242 and the light-dividing device 150.As for the set-up mode of polaroid 164 in digital microscope 200, identical with aforesaid digital microscope 100, so at this repeated description not.
Fig. 3 is the synoptic diagram after the handheld digital microscope 300 of third embodiment of the invention is simplified.The main difference of digital microscope 300 and aforesaid digital microscope 200 is the embodiment of turn light rays device.Turn light rays device 340 in the digital microscope 300 is to realize with a transparent in fact guiding device.In the present embodiment, turn light rays device 340 includes an incidence surface 342, an echo area 344 and an exiting surface 346.The light that light-emitting device 130 produces can expose to echo area 344 via incidence surface 342, and echo area 344 can reflex to exiting surface 346 with light, and last light penetrates to light-dividing device 150 via exiting surface 346 again.In one embodiment, the incidence surface 342 of turn light rays device 340 has a convex shape, can convert the light that light-emitting device 130 produces to parallel in fact irradiate light to echo area 344.Thus, from the light of turn light rays device 340 directive light-dividing devices 150, and, all can be parallel in fact light from the light of light-dividing device 150 directive target objects 104.On real the work, turn light rays device 340 can be realized with integrated structure with acryl, glass or other light transmission materials.
The polaroid mentioned among the embodiment of earlier figures 1 162 and polaroid 164, the set-up mode in digital microscope 300 be with identical in digital microscope 100, so at this repeated description not.
Fig. 4 is the synoptic diagram after the handheld digital microscope 400 of fourth embodiment of the invention is simplified.Compared to aforesaid digital microscope 100～300; Also set up an anti-reflex reflector 470 (Anti-Reflection Device) in the housing of digital microscope 400; Be positioned at the side of light-dividing device 150, be used to receive the transmitted light of coming via light-dividing device 150 transmissions with respect to the turn light rays device.The function of anti-reflex reflector 470 mainly is to avoid or alleviate the transmitted light that light-dividing device 150 transmissions are come, because the reflection of other objects (the for example inside surface of the housing of digital microscope 400) and the situation of the light-dividing device 150 of turning back.Because this situation may reduce the image quality of digital microscope 400.On real the work, can on the inside surface of the housing of digital microscope 400, a light-absorption layer (Light-Absorbing Layer) be set, for example flannelette or other low reflective material realize anti-reflex reflector 470.
Turn light rays device in the digital microscope 400 and other elements, the mode of taking off arbitrary embodiment before all available realize, for for purpose of brevity, at this repeated description not.
Fig. 5 is the synoptic diagram after the handheld digital microscope 500 of fifth embodiment of the invention is simplified.In the embodiment of Fig. 5, anti-reflex reflector 570 includes a reflecting element 572 and a fixture 574, then has a reflecting surface 576 on the reflecting element 572.Fixture 574 can with reflecting element 572 be positioned in the housing of digital microscope 500 with light-dividing device 150 corresponding positions on; And have an appropriate tilt angle, make that reflecting surface 576 can be from transmitted light guiding light-dividing device 150 place in addition that light-dividing device 150 transmissions are come.The preferably, the transmitted light that reflecting surface 576 can be come from light-dividing device 150 transmissions, guiding not can with the staggered direction of axis 102.
In another embodiment, also can be with a light-absorption layer, for example flannelette or other low reflective material are arranged on the reflecting surface 576 of reflecting element 572, in order to absorbing the transmitted light of coming from light-dividing device 150 transmissions, maybe with what reduce that light turns back light-dividing device 150.
Turn light rays device in the digital microscope 500 and other elements, the mode of taking off arbitrary embodiment before all available realize, for for purpose of brevity, at this repeated description not.
Fig. 6 is the synoptic diagram after the handheld digital microscope 600 of sixth embodiment of the invention is simplified.In digital microscope 600, anti-reflex reflector 670 includes a polaroid 678 in addition, is arranged at (for example on reflecting surface 576) between reflecting surface 576 and the light-dividing device 150.In addition, in digital microscope 600, also can at light-dividing device 150 to the optical path in image sensing district 112, a polaroid 680 be set, and both polarization directions of polaroid 678 and polaroid 680 are vertical in fact along axis 102.Thus; Even the transmitted light that light-dividing device 150 transmissions are come takes place; The situation of light-dividing device 150 because other reflected by objects are turned back again; These light compositions also can be filtered because of both optical polarization effects of polaroid 678 and polaroid 680, can further guarantee the image quality of digital microscope 600.On real the work, the position of polaroid 680 can be located between object lens 120 and the image sensing district 112, also can be located between object lens 120 and the light-dividing device 150.Perhaps, also available aforesaid polaroid 164 is realized the function of polaroid 680.
Turn light rays device in the digital microscope 600 and other elements, the mode of taking off arbitrary embodiment before all available realizes.
Fig. 7 is the synoptic diagram after the handheld digital microscope 700 of seventh embodiment of the invention is simplified.In the anti-reflex reflector 770 of digital microscope 700, can be between polaroid 678 and light-dividing device 150 (for example on polaroid 678) polaroid 780 is set, and both polarization directions of polaroid 678 and polaroid 780 are vertical in fact.On real the work, the distance piece (Spacing Element does not illustrate among the figure) of appropriate size can be set in polaroid 678 and 780 of polaroids, make polaroid 678 and polaroid 780 have a minim gap between the two.Both operation principles of polaroid 678 and polaroid 780 are similar with the collocation of aforesaid polaroid 678 and polaroid 680, at this repeated description not.
Turn light rays device in the digital microscope 700 and other elements, the mode of taking off arbitrary embodiment before all available realizes.
Fig. 8 is the synoptic diagram after the handheld digital microscope 800 of eighth embodiment of the invention is simplified.In digital microscope 800, also can object lens 890 be set along axis 102, make light-dividing device 150 between object lens 120 and object lens 890.
The setting of object lens 890, the available multiplying power that can increase digital microscope 800 is selected.On real the work, can the spacing of object lens 890 with light-dividing device 150 be designed to and can select with the multiplying power that increases digital microscope 800 according to the framework that needs adjustment.For example, can in the housing of digital microscope 800, a telescopic tube assembly be set, let object lens 890 move along axis 102, with the multiplying power of adjustment digital microscope 800 in the inside of this telescopic tube assembly.Perhaps, also can utilize one or more guide element (for example structures such as guide bar, director strip, screw thread), the suitable binding structure of arranging in pairs or groups is connected with object lens 890, and object lens 890 can be moved along axis 102 by the mode of slip or turn on guide element.
Turn light rays device in the digital microscope 800, anti-reflex reflector and other elements, the mode of taking off arbitrary embodiment before all available realize, for for purpose of brevity, at this repeated description not.
Before the embodiment of the digital microscope taken off can be applicable to many aspects, comprise application, the application of education sector and the application in amusement and recreation field or the like of application, automobile and other industrial circles of application, the medical science association area of (but being not limited to) material tests aspect.
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (20)
1. digital microscope, it includes:
One image sensing circuit has an image sensing district on it;
One first object lens are arranged along an axis with this image sensing district;
One light-emitting device is arranged at outside this axis, is used for towards not emitting beam with the direction of this axis coaxle;
One turn light rays device is arranged at outside this axis, is used for the turn light rays that this light-emitting device is sent; And
One light-dividing device is positioned on this axis, is used to change the path of the light that this turn light rays device transmits, to provide with this axis coaxle and in fact along the light of this axis output;
Wherein these first object lens are between this image sensing district and this light-dividing device.
2. digital microscope as claimed in claim 1, wherein the spacing in these object lens and this image sensing district is adjustable.
3. digital microscope as claimed in claim 2, wherein these object lens or this image sensing circuit can move along this axis.
4. digital microscope as claimed in claim 1, wherein this turn light rays device biography is parallel in fact light to the light of this light-dividing device.
5. digital microscope as claimed in claim 1, wherein the position of this light-dividing device can be moved along this axis.
6. digital microscope as claimed in claim 1, it includes in addition:
One convex lens are arranged at a side of this light-dividing device;
Wherein this turn light rays device includes:
One reflecting surface is used for the light that this light-emitting device produces is reflexed to this convex lens, and this light-dividing device of directive.
7. digital microscope as claimed in claim 6, wherein these convex lens can convert the light that this reflecting surface reflects back to parallel in fact light.
8. digital microscope as claimed in claim 1, wherein this turn light rays device includes:
One transparent in fact guiding device includes an incidence surface, an echo area and an exiting surface;
Wherein the light of this light-emitting device generation can expose to this echo area via this incidence surface, sees through this exiting surface again and penetrates.
9. digital microscope as claimed in claim 8, wherein this incidence surface has a convex shape, can convert the light that this light-emitting device produces to parallel in fact light.
10. digital microscope as claimed in claim 9, wherein this guiding device is integrated structure.
11. digital microscope as claimed in claim 1, it includes in addition:
One first polaroid is arranged on this light-emitting device to the optical path of this light-dividing device; And
One second polaroid is arranged on this light-dividing device to the optical path in this image sensing district along this axis;
Wherein this first polaroid is vertical in fact with the polarizing angle of this second polaroid.
12. digital microscope as claimed in claim 11, wherein this first polaroid can be removed on the optical path to this light-dividing device from this light-emitting device, and/or this second polaroid can be removed on this axis.
13. like claim 1 or 11 described digital microscopes, it is surrounded by in addition:
One anti-reflex reflector is arranged at the side of this light-dividing device with respect to this turn light rays device, is used to receive the transmitted light of coming via this light-dividing device transmission.
14. like 13 described digital microscopes, wherein should include a reflecting surface by anti-reflex reflector, be used for this place beyond this light-dividing device of transmitted light guiding.
15., wherein should include in addition by anti-reflex reflector like 14 described digital microscopes:
One the 3rd polaroid is arranged between this reflecting surface and this light-dividing device.
16., wherein should include in addition by anti-reflex reflector like 15 described digital microscopes:
One the 4th polaroid is arranged between the 3rd polaroid and this light-dividing device, and the 3rd, the 4th both polarization directions of polaroid are vertical in fact.
17. like 15 described digital microscopes, it includes in addition:
One the 4th polaroid is positioned at this light-dividing device to the optical path in this image sensing district;
Wherein the 3rd, the 4th both polarization directions of polaroid are vertical in fact.
18., wherein should include a light-absorption layer by anti-reflex reflector, in order to absorb this transmitted light like 13 described digital microscopes.
19. like 1,11 or 13 described digital microscopes, it includes in addition:
One second object lens are arranged along an axis with this image sensing district;
Wherein this light-dividing device is between these first object lens and this second object lens.
20. a digital microscope, it includes:
One image sensing circuit has an image sensing district on it;
One object lens are arranged along an axis with this image sensing district;
One light-emitting device is arranged at outside this axis, is used for towards not emitting beam with the direction of this axis coaxle;
One turn light rays device is arranged at outside this axis, is used for the turn light rays that this light-emitting device is sent;
One light-dividing device is positioned on this axis, is used to change the path of the light that this turn light rays device transmits, to provide with this axis coaxle and in fact along the light of this axis output;
One anti-reflex reflector is arranged at the side of this light-dividing device with respect to this turn light rays device, is used to receive the transmitted light of coming via this light-dividing device transmission;
One first polaroid is arranged on this light-emitting device to the optical path of this light-dividing device; And
One second polaroid is arranged on this light-dividing device to the optical path in this image sensing district;
Wherein this first polaroid is vertical in fact with the polarizing angle of this second polaroid, and these object lens are between this image sensing district and this light-dividing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102914447A CN102411200A (en) | 2010-09-21 | 2010-09-21 | Coaxial light-extraction-type digital microscope |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102914447A CN102411200A (en) | 2010-09-21 | 2010-09-21 | Coaxial light-extraction-type digital microscope |
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| CN102411200A true CN102411200A (en) | 2012-04-11 |
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Cited By (2)
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| CN110986808A (en) * | 2019-12-16 | 2020-04-10 | 广东谨诺科技有限公司 | Quadratic element image measuring instrument |
| CN115793225A (en) * | 2023-01-10 | 2023-03-14 | 南京木木西里科技有限公司 | Image acquisition reflection elimination adjusting device and system thereof |
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| CN115793225A (en) * | 2023-01-10 | 2023-03-14 | 南京木木西里科技有限公司 | Image acquisition reflection elimination adjusting device and system thereof |
| CN115793225B (en) * | 2023-01-10 | 2023-05-30 | 南京木木西里科技有限公司 | Image acquisition reflection elimination adjusting device and system thereof |
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Application publication date: 20120411 |