CN206193330U

CN206193330U - Microscope objective lighting device

Info

Publication number: CN206193330U
Application number: CN201621123597.XU
Authority: CN
Inventors: 刘建辉; 张前
Original assignee: Shenzhen Aokai Technology Co Ltd
Current assignee: Shenzhen Aokai Technology Co Ltd
Priority date: 2016-10-15
Filing date: 2016-10-15
Publication date: 2017-05-24
Anticipated expiration: 2026-10-15

Abstract

The utility model belongs to the technical field of the microscope, especially, the shadow -free lighting device of use in the microscope thing, a microscope objective lighting device, its characterized in that: lighting device constitute by cylinder shell and the circular ring shaped structure's that sets up in casing one end LED banks, the casing interior casing of being in the same place by the suit of mutually supporting and shell body combination the two, above -mentioned two -layer casing hookup location is provided with insulating cover, should insulating cover with insulating between interior casing and the shell body, the LED banks set up including in the annulus between casing and the shell body, the positive negative pole of LED banks is connected in interior casing and shell body electricity respectively, is provided with control switch between foretell interior casing and the shell body, the utility model discloses can provide a special microscope objective lighting device.

Description

A kind of micro objective lighting device

Technical field

The utility model belongs to microscopy field, especially a kind of shadow-free illumination dress of use in microscope thing Put.

Background technology

For the microexamination of nontransparent sample, unblanketed Uniform Illumination is realized frequently with external ring-shaped lighting device, To strengthen concave-convex effect；Even when ring illumination be used for convert multiplying power camera lens when, also require lighting device different multiplying when Uniform illumination zone and enough brightness of illuminations are waited, because operating distance can be widely varied in focussing process, this is required again Lighting device can all realize good illumination to the sample of various operating distances.Imaging effect is set farthest to have given play to Come.

In the sample of stereomicroscope observation observed by body surface reflection in microscope field, and it is existing Microscope be all the complex structure by an additional annular light source, and it is easily lost as an independent annex；Secondly Repacking is put needs more LED light groups, and the utilization rate of luminous energy is than relatively low, and manufacturing cost is also higher；In addition, the device is arranged on Object lens front end, can also influence microscopical operating space, lead to not cutaway, and power line also can be a lot, work together non- It is often cumbersome.

Microscope is the topmost application tool of upper biology, and application of many schools in classroom place is very in short supply, right The keeping of equipment is also troublesome, and school typically can all configure biomicroscope and stereomicroscope, two kinds of microscopes, but on the scene Ground is in short supply, and under the cumbersome scene of keeping, as long as increasing a camera lens with lighting source, just two kinds of microscopes can be closed into two is One, like this save cumbersome with keeping using space.Above-mentioned problem is always present in microscope when using, but so far Without a kind of very effective technical solution of appearance.

The content of the invention

The utility model is to provide a kind of special microscope object lens lighting device, microscope is possessed the work(of shadowless lighting Can, it is possible to achieve long reach, on a large scale, the illuminating effect of high brightness；Ensure that microscope in the uniform of low power observation ward Illumination, when high power is observed brightness concentrate.

What the technical solution of the utility model was realized in：A kind of micro objective lighting device, it is characterised in that：Institute The lighting device stated is made up of the LED light group of cylinder shell and the circular ring for being arranged on shell one end, described housing The inner housing and shell body being set in together by mutual cooperation combine the two, and above-mentioned two-layer housing link position is provided with insulation Set, the insulation sleeve will insulate between inner housing and shell body, and described LED light group sets ring between the inner hull and the outer hull In shape gap, the both positive and negative polarity of the LED light group is electrically connected respectively at inner housing and shell body, above-mentioned inner housing and shell body it Between be provided with controlling switch.

Described LED light group is made up of more than at least four LED illuminators fixed on circuit boards, and each LED lights The lighting angle of body 22 is not more than 120 degree.

The center of described LED light group overlaps when installing with objective lens optical axis.

Described lighting device end is located at LED light group outside and is provided with optical filter.

LED illuminator in described LED light group is each LED in white light or other monochromatic light, and LED light group Illuminator is luminous by controller plc and luminosity changes.

The housing upper end of described lighting device is provided with screw thread, and described lighting device is sleeved on into thing by the screw thread On mirror lens barrel, and lighting device is fixed on Nosepiece by above-mentioned screw thread.

Described LED light group inner housing is connected with LED light group negative pole, and connects power supply, described LED by inner housing Assembly housing body is connected with positive pole, and the controlling switch of shrapnel contact composition is provided with the Nosepiece, and the shrapnel contact leads to Crossing rotation Nosepiece makes lighting device be contacted with shrapnel contact.

Described controlling switch is to be provided with wireless control switch in the circuit board for be arranged on LED light group, by external distant Control device controls the opening and closing of LED light group.

The beneficial effects of the utility model are：The utility model is set with lighting device by using on the lens barrel of object lens Mode, can both provide micro objective illumination function, while being also not required to make structural modification to micro- lens head；Pass through Using the structure of annular LED lamp group, micro objective and annular LED lamp group is realized installation with one heart, ensure illumination effect While fruit, can also realize being illuminated without shadow, it is ensured that microscopical observing effect；By using illumination apparatus circuit structure Adjustment, ensure it is convenient lighting device is installed while avoid the exposed problem of outer lead；The utility model is by adopting Control device is connected in LED light group circuit, the regulation to lamplight brightness can also be realized.The utility model is by adopting in a word With a series of above-mentioned technical solutions, there is provided a kind of novel microscope lighting device easy to use, the microscope shines Bright device can upgrade to existing microscope, have many schools to have purchased biomicroscope originally, be merely able to observation Biologic slice, will produce many students not interested to biology, as long as increasing the object lens of the camera lens with lighting source, so that it may To observe the surface texture of insect, dissect, microscope can be allowed to reach preferably application.The big of insect world can just be opened Door, allows child to fall in love with study.

Brief description of the drawings

Fig. 1 is structure sectional view of the present utility model；

Fig. 2 is the utility model LED light group structural representation；

Fig. 3 is that the utility model uses the overall structure diagram on microscope.

Specific embodiment

The utility model will be further described with reference to the accompanying drawings and examples.

As depicted in figs. 1 and 2, a kind of micro objective lighting device, described lighting device is by cylinder shell and sets The LED light group 1 put in the circular ring of shell one end is constituted, the inner housing that described housing is set in together by cooperating 2 and the combination of shell body 3 the two, above-mentioned two-layer housing link position is provided with insulation sleeve 4, and the insulation sleeve 4 is by inner housing 2 and shell Insulated between body 3, the structure for simply saying this housing is exactly a double-layer barrel structure, is needed between inner housing 2 and shell body 3 To be isolated using insulation sleeve 4, make the above-mentioned two-layer housing can be as circuit loop part.Described LED Group 1 is arranged in the annulus between inner housing 2 and shell body 3, and the both positive and negative polarity of the LED light group 1 is respectively at the He of inner housing 2 Shell body 3 is electrically connected, and controlling switch is provided between above-mentioned inner housing 2 and shell body 3.The controlling switch can use common Circuit switch part.Above-mentioned microscope illuminator is sleeved on lens barrel 5 to realize the photograph to Germicidal efficacy article It is bright.If carrying out upgrading on the tangible existing equipment of above-mentioned microscope illuminator, can use in lighting device and Rubber ring is set between lens barrel 5 and realizes the connection of the two, naturally it is also possible to using the gluing grade of example other he fixed form.

As shown in Fig. 2 described LED light group 1 is by 7 groups of more than at least four LED illuminator being fixed on circuit board 6 Into the lighting angle of each LED illuminator 7 is not more than 120 degree.At least four LED illuminators 7 are preferably symmetrically arranged on In LED light group 1 simultaneously, you can ensure that uniform illumination can realize the effect of shadowless lighting.As shown in figure 1, the LED of the above lights Body 7 is welded on circuit board 6, is put into the annulus between inner housing 2 and shell body 3 by circuit board 6, makes circuit board 6 On cathode voltage be connected with shell body 3, then circuit board 24 is fixed by intermediate insulation set, by the inner casing of mounted LED light group 1 Body 2 and insulator 4, screw on shell body 3, the cathode traces on circuit board is connected on inner housing 2, middle insulation shell 4 to avoid short circuit for separating positive and negative pole tension.So LED illuminator 7 can select and send the LED illuminator of white light, or Person such as selects feux rouges, blue and green light, the illuminator of ultraviolet LED from monochromatic LED illuminator is sent.In shell 5 also Equipped with the control board 8 for controlling each LED illuminator 7 luminous.With lens barrel 5 when the center of described LED light group 1 is installed Optical axis coincidence.It is further illustrated in Fig. 2, most of light that each LED illuminator 7 sends can be collected in same optical axis 9. Described lighting device end is located at the outside of LED light group 1 and is provided with optical filter 10.Ground glass can also be installed, can be free Change.The optical filter 10 can provide the illuminating effect under specific condition for above-mentioned lighting device.In described LED light group 1 LED illuminator 7 is that each LED illuminator 7 in white light or other monochromatic light, and LED light group 1 is controlled by controller 8 Its luminous and luminosity change.So LED illuminator 7 can also be divided into that multistage control is luminous, thang-kng is divided into multistage to be carried out Individually control, controls every section of the open and close state and shinny intensity of LED illuminator 7 respectively；So as to realize being shone from different directions It is bright, it is used to observe the not ipsilateral form of sample.

As shown in Fig. 2 the housing upper end of described lighting device is provided with screw thread, it is generally located on inner housing 2, certainly The structure of appropriate cover plate inner housing 2 and shell body 3, it is also possible to be arranged on shell body 3, filled described illumination by the screw thread Put and be sleeved on lens barrel 5, and lighting device is fixed on Nosepiece 13 by above-mentioned screw thread.Described inner housing 2 are connected with the negative pole of LED light group 1, and connect power supply by inner housing 2, and described shell body 3 is connected with positive pole, the object lens The controlling switch of the composition of shrapnel contact 12 is provided with converter 13, the shrapnel contact 12 makes photograph by rotating Nosepiece 13 Bright device is contacted with shrapnel contact 12.The good rear thread of integral installation is directly screwed on Nosepiece 13, and the metal tape of inner housing 2 is born Electrode.Cathode voltage is transmitted on shell body 3 by shrapnel contact 12 carries out the transmission of electricity.As long as being transformed into the camera lens to be observed just The automatic LED lighted on object lens can be realized.

Described controlling switch is to be arranged in the circuit board of LED light group 1 to be provided with wireless control switch, by external distant Control device controls the opening and closing of LED light group 1.So can be that above-mentioned microscopical light source switch is more convenient and easy to behaviour Make.

Fig. 3 shows the use state figure that the utility model is arranged on a kind of microscope, the microscope bag shown in Fig. 3 Imaging screen liquid crystal display, focus adjusting mechanism, base, sample, hoistable platform, the utility model object lens 5 are included to be threadably secured to With on converter 13.When object lens are switched, circuit is connected in the 3 surface contact flat spring contact of shell body 12 of the outer end of lighting device；Carry Thing platform is adjusted to the position of focal plane by focusing handwheel, while adjusting rotation brightness regulation part, makes what annular light source was sent Light is radiated on the sample being positioned on article carrying platform, then, enterprising to display screen by camera imaging by reflex Row observation.

Described above is only preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to the utility model Limitation.In technological thought category of the present utility model, various modifications and modification, the ordinary skill of all this areas can occur Retouching, modification or equivalent that personnel are made as described above, belong to the scope that the utility model is protected.

Claims

1. a kind of micro objective lighting device, it is characterised in that：Described lighting device is by cylinder shell and is arranged on shell The LED light group of the circular ring of body one end is constituted, inner housing and shell that described housing is set in together by cooperating Both body combinations, above-mentioned two-layer housing link position is provided with insulation sleeve, and the insulation sleeve will insulate between inner housing and shell body, Described LED light group is set in annulus between the inner hull and the outer hull, and the both positive and negative polarity of the LED light group is respectively at interior Housing and shell body are electrically connected, and controlling switch is provided between above-mentioned inner housing and shell body.

2. a kind of micro objective lighting device according to claim 1, it is characterised in that：Described LED light group is by solid Fixed more than at least four LED illuminators composition on circuit boards, the lighting angle of each LED illuminator 22 is not more than 120 degree.

3. a kind of micro objective lighting device according to claim 1, it is characterised in that：In described LED light group Feel at ease and overlapped with objective lens optical axis when filling.

4. a kind of micro objective lighting device according to claim 1, it is characterised in that：Described lighting device end LED light group outside is provided with optical filter.

5. a kind of micro objective lighting device according to claim 1, it is characterised in that：In described LED light group LED illuminator is that each LED illuminator in white light or other monochromatic light, and LED light group is sent out by controller plc Light and luminosity change.

6. a kind of micro objective lighting device according to claim 1, it is characterised in that：The shell of described lighting device Body upper end is provided with screw thread, and described lighting device is sleeved on lens barrel by the screw thread, and will by above-mentioned screw thread Lighting device is fixed on Nosepiece.

7. a kind of micro objective lighting device according to claim 1, it is characterised in that：Described LED light group inner casing Body is connected with LED light group negative pole, and connects power supply by inner housing, and described LED light group shell body is connected with positive pole, the thing The controlling switch of shrapnel contact composition is provided with mirror converter, the shrapnel contact makes lighting device by rotating Nosepiece Contacted with shrapnel contact.

8. a kind of micro objective lighting device according to claim 1, it is characterised in that：Described controlling switch is to set Put and be provided with wireless control switch in the circuit board of LED light group, unlatching and pass by external remote control control LED light group Close.