CN204613503U - Lighting device and stereomicroscope - Google Patents
Lighting device and stereomicroscope Download PDFInfo
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- CN204613503U CN204613503U CN201520177471.XU CN201520177471U CN204613503U CN 204613503 U CN204613503 U CN 204613503U CN 201520177471 U CN201520177471 U CN 201520177471U CN 204613503 U CN204613503 U CN 204613503U
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Abstract
The lighting device that the utility model relate to stereomicroscope improves.The utility model proposes a kind of lighting device, comprising: an illumination group, this illumination group provides illuminating ray to sample, and this illumination group is fixedly connected on a rotating mechanism; One rotating mechanism, is fixed on this motion, and this rotating mechanism makes this illumination group carry out different light angle change; One motion, is fixed on this fixture, and this motion makes this illumination group carry out different illuminator level change; One fixture, is fixedly installed on mirror holder, and moves up and down with mirror holder; This illumination group makes the illuminator level of illumination group and/or light angle be continuously adjustable by this rotating mechanism and motion.The utility model also proposes a kind of stereomicroscope, comprising: eyepiece, zoom body group, focus adjusting mechanism, mirror holder, base and lighting device as above.The utility model is used in stereomicroscope, realizes oblique fire bright field illumination, the illumination of oblique fire deflection or oblique fire dark ground illumination to sample.
Description
Technical field
The utility model relate to a kind of stereomicroscope, specifically to the improvement of its lighting device.
Background technology
Fall to penetrating formula illumination also known as indirect illumination, refer to from object lens direction and throw light on to object, and utilize the one of reflected light imaging to throw light on, it is applicable to the observation of nontransparent sample.Fall to penetrating formula illumination and mainly contain two kinds: a kind of is coaxial-illuminating, and illuminating bundle direction is consistent with micro objective optical axis direction, realize the good observation originally of high reactionary slogan, anti-communist poster; Another kind is oblique illumination, illuminating bundle direction and microscopes optical axis angled, the observation to sample high resolving power, high-contrast can be realized.
In DE102005036230B3, describe and aly have the stereo microscope falling to penetrating light fixture.The arc armstand of this stereo microscope is distributed with multiple LED, LED single or multiplely can provide illumination together, just can provide bright field illumination when the LED of upright position independently uses, the part LED along arc then can provide an oblique illumination (angular range is 5 ° to 105 °).This episcopic illumination device is owing to being installed on fixing armstand position, every light beam that fixed angle can only be provided, light beam is adjustable, and flexibility ratio is poor, with entering to realize different oblique fire effects, the quantity required of LED also just increases, and cause control circuit more complicated, cost rises thereupon, even and if in this case, the consecutive variations of viewing angle also cannot be realized.
In CN101055346A, with reference to Fig. 1 and Fig. 2 that this patent provides, describe the dark field stereomicroscope of a use side-irradiation type lighting method.The method is lateral location light source being positioned over microscope stage, and it is 80 ° to 100 ° that the light beam that light source sends and sample are in same plane space and with the angle of optical axis, thus realizes the observation to the dark ground illumination of sample deflection.This lighting system can only provide dark field illumination, and light angle is nonadjustable, and applicability is single.
In U.S.Pat.No.8331020B2, describe and aly fall to penetrating lighting device, it uses multiple pointolite to be arranged on a carrier element, again three carrier elements are positioned over a plane orthogonal on the retainer of optical axis, retainer forward part be arcuation and directly over both sides have 2 arcuate guide mouths, a carrier element is fixed in the middle of retainer arc part, all the other 2 carrier elements distribution both sides can be moved along arcuate guide mouth, are used alone the object that a group or many group pointolites just can reach different angles observation sample like this.This scheme can to meet in in-plane displancement from different perspectives to the observation of sample, can realize, to the observation of sample not ipsilateral, but cannot meeting the illumination to the different angles of sample in free height, to reach various observing effect.
Describe in U.S.Pat.No.5038258 a stereo microscope use a kind of reflector formula fall to penetrating lighting device, reflector is placed perpendicular to optical axis, up-narrow and down-wide, reflector inwall is dispersed with multiple LED equably in the form of a ring, be distributed in LED in reflector inwall different rings like this and have a less and not identical angle relative to optical axis, thus can realize the observation of sample under multi-angle different illumination intensity.But such lighting device means the increase along with viewing angle, the quantity of LED will increase, and the size of relative reflector also needs and then to strengthen, and along with the increase of LED quantity, control circuit is more complicated, and cost is along with rising.And this light angle falling to penetrating lighting device is limited in scope, the consecutive variations observing contrast cannot be realized.
In CN 1292286C, with reference to Fig. 4, Fig. 7 and Figure 16 that this patent provides, describe aly to fall to penetrating lighting device.Multiple light-emitting diode light, substrate and diffusing device are positioned in spill framework body, then spill framework body is fixedly connected with mirror holder, thus constitute this and fall to penetrating lighting device.Because it is fixed on microscopical mirror holder, its light angle is nonadjustable, can only realize throwing light on to the oblique fire deflection of sample.
Utility model content
The purpose of this utility model is, a kind of lighting device for stereomicroscope is provided, by adjusting the position of illumination group freely, realize the wide variation of light angle, realize to the oblique fire bright field illumination of sample the illumination of oblique fire deflection oblique fire dark ground illumination, the consecutive variations observing contrast can be realized.
Another object of the present utility model is, provides a kind of lighting device for stereomicroscope, and make its structure simple, workable, cost is cheap.
Another object of the present utility model is, provides a kind of lighting device for stereomicroscope, makes its highly versatile, be namely applicable to the observation of solid phase sample, be also applicable to the observation of liquid phase sample.
So the utility model proposes a kind of lighting device, comprising: an illumination group, this illumination group provides the illuminating ray of demand angle, demand brightness and range of needs to sample, and this illumination group is fixedly connected on a rotating mechanism; One rotating mechanism, is fixed on a motion, and this rotating mechanism makes this illumination group carry out different light angle change; One motion, is fixed on a fixture, and this motion makes this illumination group carry out different illuminator level change; One fixture, is fixedly installed on mirror holder, and moves up and down with mirror holder; This illumination group makes the illuminator level of illumination group and/or light angle be continuously adjustable by this rotating mechanism and motion, thus realizes oblique fire bright field illumination, the illumination of oblique fire deflection or oblique fire dark ground illumination.
So the utility model proposes a kind of stereomicroscope, comprising: eyepiece, zoom body group, focus adjusting mechanism, mirror holder, base and lighting device, for placing observed sample on base, this lighting device is lighting device as above.
Lighting device provided by the utility model makes this illumination group carry out different illuminator level change by this motion, simultaneously except itself can move up and down, can also move up and down with mirror holder focus adjusting mechanism, and make this illumination group carry out different light angle change by this rotating mechanism, and utilize illumination group to provide demand angle to sample, the illuminating ray of demand brightness and range of needs; So the illuminator level of illumination group and/or light angle are continuously adjustable, thus realize oblique fire bright field illumination, the illumination of oblique fire deflection or oblique fire dark ground illumination.
Because stereomicroscope is easy to the impact of senior diffraction light due to inoperative, parasitic light when details in a play not acted out on stage, but told through dialogues is observed, and affect the contrast of imaging.In the utility model, because lighting device can a wide range ofly move up and down, so just can adjust the angle increasing illuminating ray, objective system can not entered by senior diffraction light, meanwhile, because illuminating ray angle is very large, not high relative to the height of sample yet, the possibility that such sample superjacent air space foreign material are thrown light on is also less, and such parasitic light is also less, thus improves details in a play not acted out on stage, but told through dialogues contrast.
Accompanying drawing explanation
Fig. 1 is the first embodiment schematic diagram of the utility model in stereomicroscope illumination;
Fig. 2 is the first embodiment partial sectional view of the utility model in stereomicroscope illumination;
Fig. 3 is the lighting device composition diagram of the first embodiment;
Fig. 4 is the lighting device cut-open view of the first embodiment;
Fig. 5 represents the second embodiment schematic diagram of the utility model in stereomicroscope illumination;
Fig. 6 is the lighting device composition diagram of the second embodiment;
Fig. 7 is the lighting device cut-open view of the second embodiment;
Fig. 8 represents the three embodiment schematic diagram of the utility model in stereomicroscope illumination;
Fig. 9 is the lighting device composition diagram of the 3rd embodiment;
Figure 10 is the lighting device cut-open view of the 3rd embodiment;
Figure 11 is the lighting device composition diagram of the 4th embodiment.
Embodiment
For further illustrating each embodiment, the utility model provides accompanying drawing.These accompanying drawings are a part for the utility model disclosure, and it is mainly in order to illustrate embodiment, and the associated description of instructions can be coordinated to explain the operation principles of embodiment.Coordinate with reference to these contents, those of ordinary skill in the art will be understood that other possible embodiments and advantage of the present utility model.Assembly in figure not drawn on scale, and similar element numbers is commonly used to assembly like representation class.
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
First embodiment of the present utility model is described below with reference to the accompanying drawings.Fig. 1 is the schematic diagram of lighting device in stereomicroscope, and Fig. 2 is the partial sectional view of lighting device in stereomicroscope, and Fig. 3 is lighting device composition diagram, and Fig. 4 penetrates lighting device cut-open view.The stereomicroscope of this embodiment and conventional stereomicroscope similar, include: eyepiece, zoom body group, focus adjusting mechanism 14, mirror holder 15, base 12 and lighting device, for placing observed sample on base 12, difference is the structure of lighting device.The lighting device of this embodiment forms primarily of three parts: up-down mechanism 21, rotating mechanism 22, illumination group part 23.As Fig. 1 and Fig. 2, the up-down mechanism 21 of this lighting device is fixed on this fixture, mirror holder 15 in this fixture and microscope fixedly connects together, and namely can rotate focusing handwheel group by focus adjusting mechanism 14(), this lighting device is moved up and down along armstand 13 together with mirror holder 15.Simultaneously, this lighting device is slided up and down relative to mirror holder 15 by up-down mechanism 21 again, and utilize rotating mechanism 22 that illumination group 23 is rotated into different light angle, illumination group 23 penetrate light beam be irradiated to along different angles be positioned at base 12 sample on, by reflex through microscopical head 11(eyepiece, zoom body group) enter in the visual field of observer.
Specifically, this embodiment, up-down mechanism 21 is that employing rail structure realizes.Consult shown in Fig. 2 and Fig. 3,4, this rail structure mainly comprises the slide track seat 37 that a slide block 31 and has a chute 371, and this slide track seat 37 is also this fixture as this embodiment simultaneously, and is fixedly connected on below mirror holder 15.This slide track seat 37 can be fixedly connected on below mirror holder 15 by the mode such as screw or welding (to be positioned at armstand 13), also can be directly to be formed to downward-extension one end as the part of this mirror holder 15.On the chute 371 of this slide track seat 37, activity arranges slide block 31, and this slide block 31 can slide along the chute 371 of slide track seat 37 relatively, thus forms a straight line up-down mechanism.
In this embodiment, the chute 371 of this slide track seat 37 adopts " V " font guide rail, and the track auxiliary section 31a of this corresponding with it slide block 31 is also corresponding " V " font convex ridge.In addition, the chute 371 of this slide track seat 37 also can adopt other rail shapes to substitute, and such as adopt rectangular guideway, " W " font (or claiming swallow-tail form) guide rail or cylindrical slideway etc., same, the profile of the auxiliary section of this slide block 31 is corresponding with it.
Preferred in this embodiment, this slide block 31 is provided with some elasticity ailhead 31b(figure and shows with 3, not as limit), automatically to regulate the elasticity be slidably matched of the chute 371 of this slide block 31 and slide track seat 37.This lighting device armstand 15 freely up and down can be moved relatively, and ensure that any position in stroke can not glide automatically because of gravity.Meanwhile, the lighting device of this this embodiment is obviously also a kind of structure that can freely dismantle.
In order to the adjustment realizing light angle changes, this rotating mechanism 22 realizes by this illumination group 23 being pivoted to be connected in this up-down mechanism 21.Consult shown in Fig. 4, this embodiment is concrete, uses screw to make it to be fixed together with this slide block 31 by a fixed block 32.The holder 36 of illumination group be fixed in fixed block 32 on this slide block 31 all there is an axis hole, use the axial screw 34 of through axis hole, anti-attrition pad 33, elastic washer 35 the two to be pivoted and to couple together, thus constitute the rotating mechanism 22 of this lighting device.Finally, the main part screw of illumination group 23 and holder 36 are fixed together.This connected mode that is pivoted of this rotating mechanism 22 ensures that illumination group 23 can around the axis of rotation on fixed block 32.
In this embodiment, this illumination group 23 comprises light source assembly and lens subassembly, and this lens combination is uncontrollable.Best, also can be that this illumination group comprises light source assembly and lens subassembly, this lens combination be adjustable, carries out continuously adjustabe for the illumination zone to light source assembly, brightness of illumination.Meanwhile, the light source assembly of this illumination group 23 also can be colour temperature, luminance adjustable light source, preferably adopts the light source of light emitting diode (LED) to realize.
In summary, the up-down mechanism 21 of the lighting device of this embodiment adopts rail structure to realize, can move up and down by straight line alone, the slide track seat 37 of this lighting device is fixed on mirror holder 15 simultaneously, thus can by adjusting focus adjusting mechanism 14 and synchronously moving up and down together with armstand 13.Thus the lighting device of this embodiment achieves the flexible adjustability of light source on vertical height, simultaneously illumination group 23 by with up-down mechanism 21 pivot joint and form a rotating mechanism 22, rotation adjustment can be carried out again, thus reach the freedom of beam angle adjustment.The lighting device of this embodiment makes the illuminator level of illumination group 23 and/or light angle be continuously adjustable, thus realizes oblique fire bright field illumination, the illumination of oblique fire deflection or oblique fire dark ground illumination, reaches the freedom of beam angle adjustment.
Although the first above-mentioned embodiment is by achieving up-down mechanism and rotating mechanism achieves the illuminator level of illumination group and the adjustment of illumination angle, this up-down mechanism only can realize straight line and move up and down, at some application scenarios still underaction.Therefore, the utility model also proposes can other motion, not only can illumination group change at illuminator level (up and down), and also can realize illumination group and change in illumination span (front and back).
The fixture of these expansion embodiments is the holders being fixedly connected on below mirror holder, holder is pivoted connection one stem body component, this stem body component is this holder rotary oscillation relatively, this rotating mechanism is fixed on this stem body component, thus constitute can change illuminator level can also change illumination span motion.
Concrete, expansion embodiment of the present utility model (the second embodiment and the 3rd embodiment) is described below with reference to the accompanying drawings.
Second embodiment of the present utility model is described below with reference to the accompanying drawings.Fig. 5 is the schematic diagram of lighting device in stereomicroscope of the second embodiment, and Fig. 6 is the oblique illumination device composition diagram of this embodiment, and Fig. 7 is the lighting device cut-open view of this embodiment.The lighting device of this embodiment forms primarily of three parts: telescopic body of rod oscillating motion mechanism 41, rotating mechanism 42, illumination group 23.As Fig. 5 and Fig. 6, the lighting device of this embodiment is fixed on fixture by telescopic body of rod oscillating motion mechanism 41, the fixture of this embodiment is employing one holder 61, this holder 61 fixedly connects together with the mirror holder 15 in microscope, namely focusing handwheel group can be rotated by focus adjusting mechanism 14(), this lighting device is moved up and down along armstand 13 together with mirror holder 15.Simultaneously, this lighting device is again by telescopic body of rod oscillating motion mechanism 41 and relative to mirror holder 15 pendulum angle and collapsing length, thus carry out changing by continuous setup to illuminator level (up and down) and illumination span (front and back), and utilize rotating mechanism 22 that illumination group 23 is rotated into different light angle, illumination group 23 penetrate light beam be irradiated to along different angles be positioned at base 12 sample on, by reflex through microscopical head 11(eyepiece, zoom body group) enter in the visual field of observer.
As Fig. 7, telescopic body of rod oscillating motion mechanism 41 mainly comprises: the moving lever 63 of sleeve 66 and with it pivot bush unit.Holder 61(fixture by this embodiment) be screwed on mirror holder 15, and this sleeve 66 of connection that is pivoted on this holder 61, thus this sleeve 66 can this holder 61 rotary oscillation relatively, this moving lever 63 can this sleeve 66 telescopic slide relatively, thus form can relative to the telescopic body of rod oscillating motion mechanism 41 of mirror holder 15 pendulum angle and collapsing length.
Concrete in this embodiment, this holder 61 has an axis hole, this sleeve 66 also has an axis hole, sleeve 66 and holder 61 anti-attrition pad 69a separate, and use the coupling shaft 68 of this two axis hole through, elastic washer 67 is connected with packing ring 69.
Preferably, the vertical position through with a wherein axis hole (this embodiment is for the axis hole on holder 61) also has a screw, screws in this screw elasticity of regulating this sleeve 66 and this holder 61 pivotal fit different from the conflict dynamics of this coupling shaft 68 by a screw 62.Like this, can ensure that sleeve 66 can rotate up and down swing and can not automatically glide in any position.Moving lever 63 is sheathed in sleeve 66, makes two panels arc shaped slider 65 compressional movement bar 63 change the elasticity of stretching by revolving drum 64.
Supplementary notes, although this embodiment only shows a kind of telescopic stem body component for Fig. 7, those skilled in the art can select other telescopic body of rod modular construction as required.
In order to the adjustment realizing light angle changes, this rotating mechanism 22 realizes by this illumination group 23 being pivoted to be connected in this up-down mechanism 21.Consult shown in Fig. 7, this embodiment is concrete, Connection Block 51 and this moving lever 63 of this illumination group 23 all have an axis hole, this moving lever 63 and Connection Block 51 anti-attrition pad 69a separate, and use the coupling shaft 68 of this two axis hole through, elastic washer 67 to carry out being pivoted with packing ring 69 and be connected (identical with the articulated manner of sleeve 66 with the holder 61 of this embodiment) thus constitute the rotating mechanism 42 of this lighting device.The main part of this illumination group 23 is fixed together with screw and Connection Block 51 again.This connected mode that is pivoted of this rotating mechanism 42 ensures that illumination group 23 can around the axis of rotation on this moving lever 63.
Preferably, the vertical position through with a wherein axis hole (this embodiment is for the axis hole on Connection Block 51) also has a screw, screws in this screw elasticity of regulating this moving lever 63 and this Connection Block 51 pivotal fit different from the conflict dynamics of this coupling shaft 68 by a screw 62.Like this, ensure that illumination section 23 can be rotated and can not automatically glide in any position.
In this embodiment, identical with the first embodiment, this illumination group 23 comprises light source assembly and lens subassembly, and this lens combination is uncontrollable.Best, also can be that this illumination group comprises light source assembly and lens subassembly, this lens combination be adjustable, carries out continuously adjustabe for the illumination zone to light source assembly, brightness of illumination.Same, the light source assembly of this illumination group 23 also can be colour temperature, luminance adjustable light source, preferably adopts the light source of light emitting diode (LED) to realize.
In summary, the telescopic body of rod oscillating motion mechanism 41 of the lighting device of this embodiment adopts the pin-jointed structure of swingable stem body component, and stem body component adopts telescopic sleeve structure to realize, can not only moving up and down and seesawing in span in height alone, the holder 61 of this lighting device is fixed on mirror holder 15 simultaneously, thus can by adjusting focus adjusting mechanism 14 and synchronously moving up and down together with armstand 13.Thus the lighting device of this embodiment achieve light source on vertical height with the two-way flexible adjustability in front and back span, simultaneously illumination group 23 by with telescopic body of rod oscillating motion mechanism 41 pivot joint and form a rotating mechanism 42, rotation adjustment can be carried out again, thus reach the freedom of beam angle adjustment.The lighting device of this embodiment makes the illuminator level of illumination group 23 (comprising illumination front and back span) and/or light angle be continuously adjustable, thus realizes oblique fire bright field illumination, the illumination of oblique fire deflection or oblique fire dark ground illumination, reaches the freedom of beam angle adjustment.
3rd embodiment of the present utility model is described below with reference to the accompanying drawings.
Fig. 8 is the schematic diagram of lighting device in stereomicroscope of the 3rd embodiment, and Fig. 9 is the lighting device composition diagram of this embodiment, and Figure 10 is the lighting device cut-open view of this embodiment.This embodiment and the second embodiment basic simlarity, the lighting device of this embodiment forms primarily of three parts: the arm-type body of rod oscillating motion mechanism 71 of folding exhibition, rotating mechanism 72, illumination group 23.
As Fig. 8 and Fig. 9, the lighting device of this embodiment is fixed on fixture by the arm-type body of rod oscillating motion mechanism 71 of folding exhibition, the fixture of this embodiment is also employing one holder 91, this holder 91 fixedly connects together with the mirror holder 15 in microscope, namely focusing handwheel group can be rotated by focus adjusting mechanism 14(), this lighting device is moved up and down along armstand 13 together with mirror holder 15.Simultaneously, this lighting device can freely be adjusted relative to the front and back position up and down of mirror holder 15 by the folding arm-type body of rod oscillating motion mechanism 71 of exhibition again, thus carry out changing by continuous setup to illuminator level (up and down) and illumination span (front and back), and utilize rotating mechanism 72 that illumination group 23 is rotated into different light angle, illumination group 23 penetrate light beam be irradiated to along different angles be positioned at base 12 sample on, by reflex through microscopical head 11(eyepiece, zoom body group) enter in the visual field of observer.
As Figure 10, the arm-type body of rod oscillating motion mechanism 71 of folding exhibition mainly comprises: one or more this embodiment of straight-arm 97(for 2, not as limit) and linking arm 95.Holder 91(fixture by this embodiment) be screwed on mirror holder 15, and connection one straight-arm 97 that is pivoted on this holder 91, other straight-arms 97 are pivoted all successively with linking arm 95 and are connected, thus the folding that formation can freely can adjust relative to the front and back position up and down of mirror holder 15 opens up arm-type body of rod oscillating motion mechanism 71.
Concrete in this embodiment, this holder 91 has an axis hole, this straight-arm 97 also has an axis hole, and straight-arm 97 and holder 91 anti-attrition pad 99 separate, and use the coupling shaft 98 of this two axis hole through, elastic washer 96 to carry out being pivoted with packing ring 94 and be connected (identical with the second embodiment).
Same, the vertical position through with a wherein axis hole (this embodiment is for the axis hole on holder 91) also has a screw, screws in this screw elasticity of regulating this straight-arm 97 and this holder 91 pivotal fit different from the conflict dynamics of this coupling shaft 98 by a screw 92.
Other second straight-arm 97 and above-mentioned first straight-arm 97, and second straight-arm 97 is all adopt anti-attrition pad 99 to separate with linking arm 95, and use coupling shaft 98, elastic washer 96 to carry out being pivoted being connected with packing ring 94, difference is that the other end of coupling shaft 98 is limited by axle latch 93, with Anti-extrusion.
Supplementary notes, although this embodiment only shows the arm-type stem body component of a kind of folding exhibition for Figure 10, those skilled in the art can select other folding to open up arm-type stem body component structure as required.
In order to the adjustment realizing light angle changes, this rotating mechanism 72 is connected to this folding to open up in arm-type body of rod oscillating motion mechanism 71 realize by this illumination group 23 being pivoted.Consult shown in Figure 10, identical with the second embodiment, this embodiment is concrete, Connection Block 81 and this linking arm 95 of this illumination group 23 all have an axis hole, this linking arm 95 separates with Connection Block 81 anti-attrition pad, and use the coupling shaft of this two axis hole through, elastic washer and packing ring to carry out being pivoted being connected, thus constitute the rotating mechanism 72 of this lighting device.The main part of this illumination group 23 is fixed together with screw and Connection Block 81 again.This connected mode that is pivoted of this rotating mechanism 42 ensures that illumination group 23 can around the axis of rotation on this linking arm 95.
Same preferred, the vertical position through with a wherein axis hole (this embodiment is for the axis hole on Connection Block 81) also has a screw, screws in this screw elasticity of regulating this linking arm 95 and this Connection Block 81 pivotal fit different from the conflict dynamics of this coupling shaft by a screw.Like this, ensure that illumination section 23 can be rotated and can not automatically glide in any position.
In this embodiment, same as the previously described embodiments, this illumination group 23 comprises light source assembly and lens subassembly, and this lens combination is uncontrollable.Best, also can be that this illumination group comprises light source assembly and lens subassembly, this lens combination be adjustable, carries out continuously adjustabe for the illumination zone to light source assembly, brightness of illumination.Same, the light source assembly of this illumination group 23 also can be colour temperature, luminance adjustable light source, preferably adopts the light source of light emitting diode (LED) to realize.
In summary, the folding of the lighting device of this embodiment opens up the pin-jointed structure that arm-type body of rod oscillating motion mechanism 71 adopts swingable stem body component, and stem body component adopts folding exhibition arm configuration to realize, can not only moving up and down and seesawing in span in height alone, the holder 91 of this lighting device is fixed on mirror holder 15 simultaneously, thus can by adjusting focus adjusting mechanism 14 and synchronously moving up and down together with armstand 13.Thus the lighting device of this embodiment achieve light source on vertical height with the two-way flexible adjustability in front and back span, illumination group 23 forms a rotating mechanism 72 by opening up arm-type body of rod oscillating motion mechanism 71 pivot joint with folding simultaneously, rotation adjustment can be carried out again, thus reach the freedom of beam angle adjustment.The lighting device of this embodiment makes the illuminator level of illumination group 23 (comprising illumination front and back span) and/or light angle be continuously adjustable, thus realizes oblique fire bright field illumination, the illumination of oblique fire deflection or oblique fire dark ground illumination, reaches the freedom of beam angle adjustment.
Above-mentioned second embodiment and the 3rd embodiment realize body of rod oscillating motion mechanism with telescopic and the arm-type stem body component of folding exhibition, but those skilled in the art still can select other stem body component and fixture articulated manner to realize body of rod oscillating motion mechanism.Such as, the stem body component of straight-arm stretching type as shown in figure 11 can also be adopted to realize, etc.
As fully visible, lighting device of the present utility model and the stereomicroscope with this lighting device, can have following advantage:
(1) structure is simple, and production cost is low;
(2) can adjust the position of illumination group freely, can realize the oblique fire bright field illumination to sample, the illumination of oblique fire deflection, oblique fire dark ground illumination, can realize the consecutive variations observing contrast;
(3) for convenience detach, workable;
(4) be both applicable to the observation of solid phase sample, be also applicable to the observation of liquid phase sample.
Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (13)
1. a lighting device, is characterized in that, comprising:
One illumination group, this illumination group provides the illuminating ray of demand angle, demand brightness and range of needs to sample, and this illumination group is fixedly connected on a rotating mechanism;
One rotating mechanism, is fixed on a motion, and this rotating mechanism makes this illumination group carry out different light angle change;
One motion, is fixed on a fixture, and this motion makes this illumination group carry out different illuminator level change;
One fixture, is fixedly installed on mirror holder, and moves up and down with mirror holder;
This illumination group makes the illuminator level of illumination group and/or light angle be continuously adjustable by this rotating mechanism and motion, thus realizes oblique fire bright field illumination, the illumination of oblique fire deflection or oblique fire dark ground illumination.
2. lighting device according to claim 1, it is characterized in that: this fixture is the slide track seat be fixedly connected on below mirror holder, there is a chute, on this chute, activity arranges a slide block, this slide block is relatively along the slide of slide track seat, thus forming this motion, this rotating mechanism is fixed on this slide block.
3. lighting device according to claim 2, is characterized in that: this slide block is provided with some elasticity ailheads, automatically to regulate the elasticity be slidably matched of the chute of this slide block and slide track seat.
4. the lighting device according to Claims 2 or 3, is characterized in that: the chute of this slide track seat is " V " font guide rail, rectangular guideway, " W " font guide rail or cylindrical slideway, and the profile of the auxiliary section of this slide block is corresponding with it.
5. lighting device according to claim 1, it is characterized in that: this fixture is a holder being fixedly connected on below mirror holder, this holder is pivoted connection one stem body component, this stem body component is this holder rotary oscillation relatively, thus forming this motion, this rotating mechanism is fixed on this stem body component.
6. lighting device according to claim 5, is characterized in that: this holder has an axis hole, and this stem body component also has an axis hole, is realized and holder pivot joint by the axle of this two axis hole through and elastic washer, pad.
7. lighting device according to claim 6, is characterized in that: the vertical position through with a wherein axis hole also has a screw, and the conflict dynamics screwing in this screw and this axle by a screw regulates the elasticity of this stem body component and this holder pivotal fit.
8. the lighting device according to claim 5 or 6, is characterized in that: described stem body component is telescopic mechanism, the folding arm-type mechanism of exhibition or straight-arm stretching type mechanism.
9. the lighting device according to claim 1 or 2 or 5, is characterized in that: this rotating mechanism realizes variable-angle by this illumination group being pivoted to be connected on this motion.
10. lighting device according to claim 9, it is characterized in that: this rotating mechanism specifically: this illumination group has an axis hole, this motion also has an axis hole, realizes this illumination group and this rotating mechanism pivot joint by the axle of this two axis hole through and elastic washer, pad.
11. lighting devices according to claim 1, is characterized in that: this illumination group comprises light source assembly and lens subassembly, and this lens combination is uncontrollable.
12. lighting devices according to claim 1, is characterized in that: this illumination group comprises light source assembly and lens subassembly, and this lens combination is adjustable, carry out continuously adjustabe for the illumination zone to light source assembly, brightness of illumination.
13. 1 kinds of stereomicroscopes, comprise: eyepiece, zoom body group, focus adjusting mechanism, mirror holder, base and lighting device, for placing observed sample on base, its spy is: this lighting device is as the lighting device as described in arbitrary in the claims 1-12.
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| CN201520177471.XU CN204613503U (en) | 2015-03-27 | 2015-03-27 | Lighting device and stereomicroscope |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044896A (en) * | 2015-03-27 | 2015-11-11 | 麦克奥迪实业集团有限公司 | Lighting device and stereoscopic microscope |
| CN108956466A (en) * | 2018-07-31 | 2018-12-07 | 江西省长益光电有限公司 | A kind of appearance inspection device |
| CN109541789A (en) * | 2018-11-22 | 2019-03-29 | 深圳市爱科学教育科技有限公司 | Microscope |
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2015
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044896A (en) * | 2015-03-27 | 2015-11-11 | 麦克奥迪实业集团有限公司 | Lighting device and stereoscopic microscope |
| CN108956466A (en) * | 2018-07-31 | 2018-12-07 | 江西省长益光电有限公司 | A kind of appearance inspection device |
| CN109541789A (en) * | 2018-11-22 | 2019-03-29 | 深圳市爱科学教育科技有限公司 | Microscope |
| CN109541789B (en) * | 2018-11-22 | 2021-09-21 | 深圳市爱科学教育科技有限公司 | Microscope |
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