CN104698580A - Lighting device applied to microscope - Google Patents
Lighting device applied to microscope Download PDFInfo
- Publication number
- CN104698580A CN104698580A CN201510117561.4A CN201510117561A CN104698580A CN 104698580 A CN104698580 A CN 104698580A CN 201510117561 A CN201510117561 A CN 201510117561A CN 104698580 A CN104698580 A CN 104698580A
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- led illuminator
- lighting device
- annular
- light
- bore area
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
Abstract
The invention discloses a lighting device applied to a microscope. The lighting device comprises a shell in which a light through hole is formed, an annular light source is accommodated on the shell around the light through hole and comprises an annular cooler, and the surface of an inner hole of the annular cooler is of a conical surface; a plurality of LED (Light Emitting Diode) illuminants are annularly distributed on the surface of the inner hole of the annular cooler, parts of light beams given out by each LED illuminant can be collected on a same optical axis, and the optical axis is parallel to an axial direction of the light through hole and is overlapped with a central axis of an inner hole of the annular cooler; the annular cooler is provided with a conducting circuit electrically connected with each LED illuminant, and the shell is internally provided with a control circuit board which controls each LED illuminant to give out light; the shell is spirally connected with a condensation ring, the surface of the inner hole of the condensation ring is of an inverted conical shape, and the central axis of the surface of the inner hole of the condensation ring and the optical axis are overlapped. According to lighting device provided by the invention, the lighting effect with long operating distance, large scope and high brightness can be realized.
Description
Technical field
The present invention relates to and be applied to microscopical lighting device, especially one is applied to microscopical lighting device.
Background technology
For the microexamination of nontransparent sample, the normal ring lighting device that adopts realizes unblanketed Uniform Illumination, to strengthen concave-convex effect; Simultaneously, in order to can the profile of clear confirmation sample structure, again can the small inner structure of clear confirmation sample, usually light angle, illumination orientations is also needed to change, even when ring illumination is used for continuous zoom lens, also require that lighting device can provide large-scale Uniform Illumination when low power, and highlight illumination among a small circle can be provided when high power; When ring illumination is used for macro-lens, because in focussing process, working distance defection significantly changes, this requires that again lighting device can realize good illumination to the sample of various operating distance.
At present, conventional ring lighting device has: fluorescence ring lighting device, fiber annular lighting device, LED ring lighting device.
Fluorescence ring lighting device due to the efficiency of light energy utilization low, the bad control of divergence of beam angle, cause illumination zone very large, be difficult to reach high-power illumination in suitable locus, like this, when often causing height multiple to observe, sample brightness of image is not enough, and energy dissipation is serious, and this also just limits the usable range of fluorescence ring illumination.
Also it is low to there is the efficiency of light energy utilization in fiber annular lighting device, the problem of the bad control of light angle, although can strengthen power to improve brightness, often exists and involves great expense, the problem that small product size is very large.
And LED ring lighting device can overcome the some shortcomings of above-mentioned two kinds of ring lighting devices, be well used in existing microscopical illumination, but the ring lighting device of existing employing LED also comes with some shortcomings.
As in patent CN2914118Y, describe a kind of stereo microscope LED annular illumination system, bracket in the annular plastics of the ring-shaped P CB circuit board of employing welding light emitting diode and band " recessed " type mouth and multiple " eight " nibs, by PCB being pressed in plastics in bracket, make the pin natural torsion of light emitting diode, thus make light emitting diode emit beam just in time can uniform focus in target.But this LED ring illumination, its LED chip directly can only be dispelled the heat by limb, and heat dispersion is obviously bad, also just high-power LED cannot be suitable for,, in this case, easily there is the problem of brightness of illumination deficiency in all impossible reliably working of LED of even >=0.3W; In order to improve brightness, often adopt and increase LED quantity, cause small product size very large thus, thus affect operation convenience, cause cost to improve simultaneously, this device just cannot take into account simultaneously low power use time illumination uniformity and high power use time capacity usage ratio; This device has certain requirement to operating distance simultaneously, can not meet the situation that operating distance significantly changes, limit the usable range of this device.
And for example in patent CN100544541C, describe the manufacture method of the oblique illuminating apparatus of a kind of ring-type, light-emitting element array is adopted to be fixed on flexible PCB, by additional configuration plane device setting, thus luminescent device is emitted beam just in time can focus in target, because flexible PCB generally adopts macromolecular material, material conducts heat is bad, cause LED chip heat dispersion bad, also just high-power LED cannot be suitable for, the all impossible reliably working of LED of even >=0.3W, in this case, easily there is the problem of brightness of illumination deficiency, in order to improve brightness, often adopt and increase LED quantity, also cause small product size very large thus, thus affect operation convenience, simultaneously, because flexible PCB price is partially expensive, and it is too soft, easy deformed damaged, manufacturing cost is caused to promote.
Visible, in above-mentioned existing product, all can not adapt to the change that farm labourer makes illumination distances, and lighting requirement when can only be applicable to particular job distance, both can not ensure Uniform Illumination during low power, the maximization that when can ensure that high power is observed again, illumination energy utilizes.
Summary of the invention
The technical problem to be solved in the present invention is to provide one and is applied to microscopical lighting device, realize long reach, on a large scale, the illuminating effect of high brightness; Ensure that the Uniform Illumination of microscope when low power is observed, the illumination energy when high power is observed utilizes and maximizes.
For achieving the above object, technical scheme of the present invention is: one is applied to microscopical lighting device, comprise housing, housing is arranged a light hole, the housing of light hole periphery holds an annular light source, described annular light source comprises an annular radiator, this annular radiator bore area is coned face, multiple LED illuminator is distributed with at the bore area of this annular radiator, multiple LED illuminator circularizes evenly distributed, all LED illuminator at least form an annular, the some light that each LED illuminator sends can collect on same optical axis, this optical axis is parallel to the axis of this light hole, and with this annular radiator endoporus central axes, this annular radiator is provided with conducting wire and is electrically connected each LED illuminator, housing is also provided with the resigning hole allowing all LED illuminator that light is penetrated, and the control circuit board controlling each LED illuminator luminescence is also housed in housing.
Further improvement, described resigning hole is equipped with transparent dust cover.
Preferred all LED illuminator be send white light LED illuminator or send the combination of monochromatic LED illuminator for sending monochromatic LED illuminator or part for the LED illuminator and part sending white light.
Further, all LED illuminator form multiple annular.Brightness of illumination can be improved further like this.
The quantity being preferably formed the LED illuminator of each annular is no less than 18, and the lighting angle of each LED illuminator is not more than 60
.。
The coning angle of preferred described annular radiator bore area is not less than 50
.。
The coning angle of the lighting angle of preferred each LED illuminator and this annular radiator bore area of 1/2 adds up to 90 °.The outer beam of each like this LED illuminator can realize being parallel to optical axis injection, to realize long reach, throws light on a large scale.
Further improvement, all LED illuminator are divided into multistage and control luminous, controlling separately, controlling the open and close state of every section of LED illuminator and shinny intensity respectively by being divided into multistage; Thus realize throwing light on from different directions, in order to observe the not ipsilateral form of sample.Now housing can be provided with the luminescence that multiple button electrical connection control circuit board controls all LED illuminator.
Preferred described annular radiator is formed by aluminium base or copper base drawing pipe.Better to form the circular conical surface of annular radiator endoporus.
Preferred each LED illuminator welding or attachment are connected on the bore area of this annular radiator.
Further improvement, described housing is formed by connecting by upper shell and lower house, upper shell is equipped with and connects microscopical trip bolt.Facilitate the assembling of whole lighting device like this and whole lighting device is connected on microscope.
Further improvement, described housing spins an optically focused ring, and optically focused ring bore area is turbination, and central axis and the described optical axis of optically focused ring bore area coincide.Reach and change the angle of LED illuminator emission of light and the brightness of illumination, adjustment operating distance, adjustment illumination zone or change light angle are to realize different illumination contrasts.Now rotate the relative position that optically focused ring can change optically focused ring and housing, also just can change the relative distance of optically focused ring and annular light source, change the illumination condition be irradiated on sample, to adapt to the needs of microscope difference observation operating mode.
The transmission ring of the reverberation bowl of the reverberation bowl on the reverberation bowl of preferred described optically focused ring to be bore area be minute surface or described optically focused ring to be bore area be diffuse transmission type surface or described optically focused ring to be bore area be gradual change reflectivity surface or described optically focused ring to be bore area be matte surface.
The present invention is owing to being arranged on LED illuminator distribution on the bore area of an annular radiator, the LED illuminator of relatively high power just can be set by the thermolysis that annular radiator is good, realize highlight illumination, this annular radiator bore area is coned face simultaneously, multiple LED illuminator circularizes evenly distributed, the some light that each LED illuminator sends can collect on same optical axis, this optical axis be parallel to this light hole axis and with this annular radiator endoporus central axes.By the lighting angle of the cone angle and each LED illuminator that control this annular radiator bore area, the ray cast that just can conveniently realize LED illuminator to send is to larger distance, realize long reach, on a large scale, highlight illumination effect, due to can realize long reach, on a large scale, the illuminating effect of high brightness, just ensure that the Uniform Illumination of microscope when low power is observed, the illumination energy when high power is observed utilizes and maximizes.
The present invention also has following advantage:
1, because annular radiator radiating effect is better, the serviceable life of product can be improved;
2, whole product structure is simply compact, can effectively reduce manufacturing cost, and convenient and microscope supports the use;
3, not only can realize after further increasing optically focused ring that operating distance is variable, illumination zone is variable, illumination contrast can be realized again variable;
4, the further large plastometric set characteristic that has of the aluminium base or copper base tube material of reasonable utilization, by the annular radiator of mechanical technology machine-shaping, can change in the past by bending LED pins and employing flexible PCB, the unstable properties that causes, cannot use the problem of great power LED.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
Fig. 2 is the schematic diagram of annular light source illumination path of the present invention;
Fig. 3 is the illumination path schematic diagram that annular light source of the present invention and optically focused ring cooperatively interact;
Fig. 4 is the using state figure that the present invention is arranged on a kind of microscope.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment, the present invention is described in further detail.
Shown in Fig. 1, Fig. 2, one is applied to microscopical lighting device, comprise housing 1, housing 1 is fixed together by lock-screw 13 by upper shell 11 and lower house 12, housing 1 is arranged a light hole 14, the housing 1 of light hole 14 periphery holds an annular light source 2, and described annular light source 2 comprises an annular radiator 21, this annular radiator 21 bore area 211 is coned face, and the coning angle a of this annular radiator 21 bore area 211 is not less than 50
.；
Multiple LED illuminator 22 is distributed with at the bore area 211 of this annular radiator 21, each LED illuminator 22 welding or mounting method are connected on the bore area 211 of this annular radiator 21, this annular radiator 21 is also provided with conducting wire and is electrically connected each LED illuminator 22, multiple LED illuminator 22 circularizes evenly distributed, all LED illuminator 22 form a ring shooting, also can form multiple ring shooting;
The quantity forming the LED illuminator 22 of each ring shooting is no less than 18, and the lighting angle b of each LED illuminator 22 is not more than 60
.。
1/2 lighting angle a of each LED illuminator 22 and 1/2 coning angle b of this annular radiator 21 bore area is preferably made to add up to 90 °, it is farther that the light that such LED illuminator 22 penetrates can shine, can infinite distance be incident upon in theory, to realize long reach, throw light on a large scale.
Fig. 2 further shown in, most of light that each LED illuminator 22 sends can collect on same optical axis 3, this optical axis 3 be parallel to this light hole 14 axis and with this annular radiator 21 endoporus central axes, when this light hole 14 selects circular hole, this optical axis 3 also can with the central axes of this light hole 14; Fig. 2 also illustrates, inside each LED illuminator 22, light and optical axis 3 form an angle and penetrate, thus realize most casual labourer and make range blanking A, and each LED illuminator 22 outer beam is almost parallel to optical axis 3 and penetrates, can realize maximum hot spot illumination width B, farm labourer makes illumination distances C;
Housing 1 is also provided with the resigning hole 15 allowing all LED illuminator 22 that light is penetrated, the control circuit board 4 controlling the luminescence of each LED illuminator 22 is also housed in housing 1.
Described resigning hole 15 is equipped with transparent dust cover 5.
All LED illuminator 22 can select the LED illuminator 22 sending white light, or select as sending monochromatic LED illuminator 22, as selected the LED illuminator of ruddiness, blue light, green glow, or part is for sending the LED illuminator 22 of white light and partly sending the combination of monochromatic LED illuminator 22.
All LED illuminator 22 can also be divided into multistage and control luminous, controlling separately, controlling the open and close state of every section of LED illuminator 22 and shinny intensity respectively by being divided into multistage; Thus realize throwing light on from different directions, in order to observe the not ipsilateral form of sample.
Housing 1 is provided with two contact buttons 16 and is electrically connected control circuit board 4 and controls all LED illuminator 22 and carry out luminescence.
Described annular radiator 21 is formed by aluminium base or copper base drawing pipe.The material of aluminium base or copper base the selection of pipe high heat-conduction coefficient, large plastometric set, the draw ratio preferably covering copper position is not more than 1:6, and the draw ratio of other position is not more than 1:10; Such mechanical technology method adopting stretching, can conveniently make annular radiator 21 form required curve form.
In order to the brightness of the angle and illumination that change LED illuminator 22 emission of light, adjustment operating distance, adjustment illumination zone or change light angle are to realize different illumination contrasts, described housing 1 to be spun an optically focused ring 6 by screw thread, optically focused ring 6 bore area 61 is turbination, and central axis and the described optical axis 3 of optically focused ring 6 bore area 61 coincide.
Described optically focused ring 6 can select bore area 61 to be the reverberation bowl of minute surface, or described optically focused ring 6 selects bore area 61 to be the reverberation bowl on diffuse transmission type surface, or described optically focused ring 6 selects bore area 61 to be the reverberation bowl of gradual change reflectivity surface, or described optically focused ring 6 selects bore area 61 to be the transmission ring of matte surface.
Fig. 3 illustrates the illumination path schematic diagram that annular light source 2 and optically focused ring 6 cooperatively interact further, the light that annular light source 2 penetrates focuses on optical axis 3 and forms maximum angle c after the bore area 61 of optically focused ring 6 reflects, and the light that annular light source 2 penetrates forms minimum angle d focus on optical axis 3 after optically focused ring 6 stops after, the shortest illumination distances can be realized like this after the bore area 61 of optically focused ring 6 reflects and reduce the distance D, in the distance E section of optical axis 3, the light of the light that annular light source 2 penetrates and the reflection of optically focused ring 6 bore area 61 is overlapped, the illumination of more high brightness can be realized, to realize partial duty apart from interior highlight illumination, also can change different illumination contrast simultaneously.
Because optically focused ring 6 is screwed on housing 1 by screw thread, the relative distance of optically focused ring 6 and annular light source 2 just can be changed by adjustment optically focused ring 6 and the relative position of housing 1, also each parameter recited above can be changed: maximum angle c, minimum angle d, distance D and E, to adapt to the difference needs of microscopic.
Fig. 4 illustrates that the present invention is arranged on the using state figure on a kind of microscope, and the present invention is equipped with and is connected microscopical trip bolt 23 on upper shell 1.The microscope shown in Fig. 4 comprises eyepiece 10, zoom body group 20, focus adjusting mechanism 30, base 40, sample 50.The present invention is connected in the end of zoom body group 20 by trip bolt 23; Zoom body group 20 adjusts to position of focal plane by focus adjusting mechanism 30, drive the lighting device of the present invention be contained in zoom body group 20 to move up and down simultaneously, the light that annular light source 2 is sent is radiated at the sample 50 be positioned on base 40, then, entered in the visual field of observer through eyepiece 10 by reflex.
When microscope works in high power, optically focused ring 6 is installed in invention, illuminating ray cover to illumination zone adaptive with it, realize capacity usage ratio and maximize, maximum luminance; When microscope works in low power, optically focused ring 6 can be taken off, or change the optically focused ring 6 of low power adaptive with it into, realize the large-scale Uniform Illumination when low power.
Below be only the present invention's preferred embodiment, those skilled in the art makes by claim the protection domain that equivalent change all falls into this case.
Claims (13)
1. one kind is applied to microscopical lighting device, comprise housing, housing is arranged a light hole, the housing of light hole periphery holds an annular light source, it is characterized in that: described annular light source comprises an annular radiator, this annular radiator bore area is coned face, multiple LED illuminator is distributed with at the bore area of this annular radiator, multiple LED illuminator circularizes evenly distributed, all LED illuminator at least form an annular, the some light that each LED illuminator sends can collect on same optical axis, this optical axis be parallel to this light hole axis and with this annular radiator endoporus central axes, this annular radiator is provided with conducting wire and is electrically connected each LED illuminator, housing is also provided with the resigning hole allowing all LED illuminator that light is penetrated, and the control circuit board controlling each LED illuminator luminescence is also housed in housing.
2. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: described resigning hole is equipped with transparent dust cover.
3. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: all LED illuminator be send white light LED illuminator or send the combination of monochromatic LED illuminator for sending monochromatic LED illuminator or part for the LED illuminator and part sending white light.
4. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: all LED illuminator form multiple annular.
5. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: the quantity forming the LED illuminator of each annular is no less than 18, and the lighting angle of each LED illuminator is not more than 60 °.
6. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: the coning angle of described annular radiator bore area is not less than 50 °.
7. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: the coning angle of the lighting angle of each LED illuminator and this annular radiator bore area of 1/2 adds up to 90 °.
8. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: all LED illuminator are divided into multistage and control luminous.
9. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: described annular radiator is formed by aluminium base or copper base drawing pipe.
10. one according to claim 1 is applied to microscopical lighting device, it is characterized in that: each LED illuminator welding or attachment are connected on the bore area of this annular radiator.
11. one according to claim 1 are applied to microscopical lighting device, it is characterized in that: described housing is formed by connecting by upper shell and lower house, upper shell is equipped with and connects microscopical trip bolt.
12. one according to any one of claim 1 to 11 are applied to microscopical lighting device, it is characterized in that: described housing spins an optically focused ring, optically focused ring bore area is turbination, and central axis and the described optical axis of optically focused ring bore area coincide.
13. one according to claim 12 are applied to microscopical lighting device, it is characterized in that: the transmission ring of the reverberation bowl of the reverberation bowl on the reverberation bowl of described optically focused ring to be bore area be minute surface or described optically focused ring to be bore area be diffuse transmission type surface or described optically focused ring to be bore area be gradual change reflectivity surface or described optically focused ring to be bore area be matte surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510117561.4A CN104698580B (en) | 2015-03-18 | 2015-03-18 | One kind is applied to microscopical lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510117561.4A CN104698580B (en) | 2015-03-18 | 2015-03-18 | One kind is applied to microscopical lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104698580A true CN104698580A (en) | 2015-06-10 |
| CN104698580B CN104698580B (en) | 2017-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510117561.4A Active CN104698580B (en) | 2015-03-18 | 2015-03-18 | One kind is applied to microscopical lighting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717062A (en) * | 2018-08-24 | 2018-10-30 | 中国工程物理研究院机械制造工艺研究所 | A kind of the details in a play not acted out on stage, but told through dialogues defect detecting device and its measurement method of heavy caliber ultra-precision surface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005331623A (en) * | 2004-05-18 | 2005-12-02 | Ccs Inc | Illuminator for microscope |
| CN200986612Y (en) * | 2006-12-08 | 2007-12-05 | 张前 | LED luminous diode ring lighting |
| JP3142994U (en) * | 2008-04-22 | 2008-07-03 | 株式会社渋谷光学 | Dark field illumination device |
| CN204462526U (en) * | 2015-03-18 | 2015-07-08 | 麦克奥迪实业集团有限公司 | One is applied to microscopical lighting device |
-
2015
- 2015-03-18 CN CN201510117561.4A patent/CN104698580B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005331623A (en) * | 2004-05-18 | 2005-12-02 | Ccs Inc | Illuminator for microscope |
| CN200986612Y (en) * | 2006-12-08 | 2007-12-05 | 张前 | LED luminous diode ring lighting |
| JP3142994U (en) * | 2008-04-22 | 2008-07-03 | 株式会社渋谷光学 | Dark field illumination device |
| CN204462526U (en) * | 2015-03-18 | 2015-07-08 | 麦克奥迪实业集团有限公司 | One is applied to microscopical lighting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717062A (en) * | 2018-08-24 | 2018-10-30 | 中国工程物理研究院机械制造工艺研究所 | A kind of the details in a play not acted out on stage, but told through dialogues defect detecting device and its measurement method of heavy caliber ultra-precision surface |
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| Publication number | Publication date |
|---|---|
| CN104698580B (en) | 2017-06-27 |
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