CN210294667U

CN210294667U - Microscope with upper light source

Info

Publication number: CN210294667U
Application number: CN201921073345.4U
Authority: CN
Inventors: 李晓光; 苏文; 高静; 陈菲
Original assignee: Institute of Geology and Geophysics of CAS
Current assignee: Institute of Geology and Geophysics of CAS
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-04-10
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a device has microscope of light source, it includes light source and last light source base, goes up light source base suit on microscope's objective lens tube to last light source base is last to be provided with the light source, and goes up the light orientation microscope's objective table of light source. Utilize focus illumination direction adjustable light source under supplementary to observe through above-mentioned setting, object under the microscope can be clear to the observation more clear, draw more accurate conclusion, and light source controller can control the light source luminance of light source and time light source, and carry out the subregion control to time light source, select to open down the light in the different regions of light source according to the demand, can realize shining of different angle light sources, especially the dress appearance experiment to the diamond pressure chamber, experimental effects such as the micro-appraisal auxiliary experiment of mineral are better.

Description

Microscope with upper light source

Technical Field

The utility model belongs to the optical instrument field, specifically speaking relates to a device has microscope of light source.

Background

The microscope in the prior art is an optical instrument formed by one lens or a combination of a plurality of lenses, and is mainly used for magnifying tiny objects to be seen by naked eyes of people, in the using process, the light source of the microscope is an important factor influencing whether a user can clearly observe, the microscope is divided into an optical microscope and an electronic microscope, the optical microscope takes visible light as the light source and is structurally divided into an optical system and a mechanical device, wherein the illumination light source of the optical microscope is usually positioned below a condenser and is a special strong light bulb with uniform illumination, and peripheral light passes through a light through hole arranged on a stage and enters an eyepiece after being just illuminated by adjusting a cambered reflector at the bottom of the microscope, so that an observer can clearly observe objects on a slide.

Chinese patent application No. CN107045189A discloses an optical microscope based on a point light source illumination system, which comprises an eyepiece, an objective lens, an objective table, a point light source brightness controller and a microscope frame; eyepiece and objective are located respectively the upper and lower two sides on microscope carrier top, the objective table is located the bottom surface of objective table is located to the middle section of microscope carrier, pointolite, and the center of objective and the center of pointolite are located same vertical line, and pointolite brightness controller is connected with the pointolite, utilizes this utility model to provide higher illumination intensity, but when using microscope to carry out the complicated device operation of diamond pressure chamber isotructure and the experiment of mineral microscope appraisal, only can not satisfy the demand of specific direction high illumination light source through the lower light source that is located the objective table below.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming prior art's not enough, provides a device has microscope of light source to the realization shines to the multi-direction light source of observed object under the microscope, and can highlight some characteristics of observed object, and the incident direction of light source and lower light source is gone up in the nimble control, obtains the illumination demand of specific direction.

In order to solve the technical problem, the utility model adopts the following basic concept:

a microscope with upper light source is composed of a lens barrel, an object stage horizontally installed to said lens barrel and able to enlarge the object on object stage by said object stage, and an upper light source with light source towards said object stage.

Furthermore, the upper light source is at least four irradiation points, and the upper light source is arranged on the upper light source base in a pairwise opposite and equidistant manner;

preferably, the upper light source is a ring-shaped lamp strip.

Furthermore, the focal length and the focusing position of the upper light source can be adjusted;

preferably, the upper light source is rotatably connected with the upper light source base through a rotating guide rod.

Furthermore, a locking piece is arranged on the upper light source base, and a working amount is arranged between the upper light source base and the lens tube of the microscope objective lens, and the upper light source base can slide along the radial direction of the microscope objective lens and is locked and fixed through the locking piece;

preferably, the upper light source base is provided with a fracture, the upper light source base is in a shape of a locking pipe ring, the upper light source base has a maximum diameter with the lens tube of the objective lens, and the upper light source base is fixed on the lens tube of the objective lens after the screw is tightened.

Further, the microscope further comprises a lower light source and a lower light source base, wherein the lower light source base is fixed below an object stage of the microscope, the lower light source is arranged in the lower light source base, and light rays of the lower light source face the object stage.

Further, the lower light source at least comprises a center lamp group and a peripheral lamp group, the center lamp group and the peripheral lamp group are controlled in a partition mode, the peripheral lamp group is divided into a plurality of areas, and each area can be independently opened and closed.

Preferably, the upper light source and the lower light source are both LED lamp sets.

The controller is respectively connected with the upper light source and the lower light source and can independently control the on-off of the upper light source and the lower light source;

preferably, the zone control of the peripheral light groups is also controlled by the controller.

Further, the objective table is made of high-light-transmission materials;

preferably, the stage is a highly transparent glass or quartz material.

Further, the lower light source base is a circular light source base.

Furthermore, the central lamp group is circular, and the peripheral lamp group is annular and surrounds the central lamp group.

Utilize focus illumination direction adjustable light source under supplementary light source to observe, can be more clear observe the object under the microscope, draw more accurate conclusion, and light source controller can control the light source luminance of light source and time light source to and carry out the subregion control to time light source, select to open the light in the different regions of light source down according to the demand, can realize shining of different angle light sources, especially the dress appearance experiment to the diamond pressure chamber, experimental effects such as the micro-appraisal auxiliary experiment of mineral are better.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of an upper light source in the present invention;

FIG. 3 is a schematic view of the present invention showing the lower light source being fully turned on;

FIG. 4 is a schematic view of the peripheral lamp set of the present invention being turned on at the same side;

fig. 5 is a schematic diagram of the side-open of the peripheral lamp set of the present invention.

In the figure: 1. an upper light source; 11. an upper light source base 2 and a lower light source; 21. a center light group; 22. a peripheral lamp group; 23. a lower light source base; 4. a controller; 5. an object stage; 6. an objective lens.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, a microscope with a top light source, wherein a lens barrel, a lens arm and a lens base are connected in sequence to form a frame structure objective lens of the microscope and mounted on the lens barrel, an objective table 5 is horizontally mounted on the lens base and magnifies an object on the objective table 5 through an objective lens 6, the microscope comprises a top light source 1 and a top light source base 11, the top light source base 11 is annularly sleeved on the lens barrel of the objective lens 6 of the microscope, the top light source 1 is mounted on the top light source base 11, and the light of the top light source 1 is directed to the objective table 5 of the microscope, so as to irradiate the object on the microscope objective table 5, for example, during a diamond pressure chamber high-temperature high-pressure experiment, the object under the optical microscope is usually photographed through a digital camera, sometimes the photographing effect due to the light problem is not ideal, then the top light source 1 is turned on, so as to supplement light to the, the object shot by the digital camera is clearer, the diamond pressure cavity high-temperature and high-pressure experiment is taken as an example, but the experiment is not limited to the diamond pressure cavity high-temperature and high-pressure experiment, the microscope provided with the upper light source in the embodiment can be used in other experiments to improve the brightness of the observed object, for example, the object on a glass slide can be observed, so that the observation experiment can be performed by an observer conveniently.

In this embodiment, go up light source 1 and be four irradiation points at least to two liang of relative and equidistance is installed on last light source base 11, guarantee that sufficient and even illumination will be lighted by the observed object, it is preferred, go up light source 1 and be focus adjustable, focus position adjustable cyclic annular lamp area, cyclic annular light source 1's light can shine more evenly on objective table 5, provides more even illumination to the object on the slide glass, makes the result of observing more clear.

In this embodiment, the focal length and the focusing position of the upper light source 1 are adjustable, the upper light source 1 and the upper light source base 11 are rotatably connected through a rotating guide rod, since objects observed by a microscope are different, if the focal length of the light of the upper light source 1 is fixed, in an experimental process, not only a good illumination and brightening effect cannot be achieved, but also objects which can be seen clearly due to the scattered light of the upper light source 1 cannot be seen no matter how the microscope is adjusted, the light source with the adjustable focal length is selected as the upper light source 1, and similarly, the focusing position of the upper light source 1 also affects the result of an observation test, in an experimental process, if a plurality of objects are observed, after the objects are placed on a glass slide, the positions of the objects observed in each test cannot be guaranteed to be consistent, and if the focusing direction of the upper light source 1 is not adjustable, the position of the glass slide can only be continuously adjusted to be matched with the upper light source 1 for observation, so that the focusing position of the upper light source 1 is set to be adjustable, the operation in the experimental process can be simplified, and the operation of an observer is facilitated.

In this embodiment, a locking member is installed on the upper light source base 11, and an amount of light is provided between the upper light source base 11 and the microscope objective 6, the upper light source base 11 can slide along the radial direction of the microscope objective and is locked and fixed by the locking member, preferably, a fracture is provided on the upper light source base 11, and the upper light source base 11 is in a lock tube ring shape, and an amount of light is provided between the upper light source base 11 and the tube of the objective 6 when the diameter of the upper light source base 11 is the largest, when the screw is tightened, the upper light source base 11 is fixed on the tube of the objective 6, the sliding of the position of the upper light source base 11 can drive the light source emitting position of the upper light source 1 to change, even if the focal length of the upper light source 1 is adjustable, due to the difference of working environments, sometimes the external environment is too bright, the observation result is affected, and therefore, the brightness of the upper light source 1 needs to be improved, but if an object which cannot be observed, the brightness of the upper light source 1 can be increased or decreased by adjusting the position of the upper light source base 11 in the radial direction of the microscope objective lens 6, and the upper light source base 11 is fixed after adjustment.

In this embodiment, it further includes a lower light source 2 and a lower light source base 23, the lower light source base 23 is fixed under the stage 5 of the microscope, and the lower light source 2 is installed in the lower light source base 23, the light of the lower light source 2 faces the stage 5, the lower light source 2 replaces the cambered reflector in the conventional optical microscope, and the object to be observed can be illuminated after passing through the glass slide by the irradiation of the lower light source 2, and passes through the objective lens 6. The eyepiece passes into the eye of the observer or into the camera.

In this embodiment, the lower light source 2 at least comprises a central light group 21 and a peripheral light group 22, the central light group 21 and the peripheral light group 22 are controlled in a partitioned manner, the peripheral lamp group 22 is divided into a plurality of areas, each area can be independently opened and closed, the central lamp group 21 is kept normally on, the most basic light source is provided for observation, meanwhile, the peripheral lamp group 22 not only improves the brightness of the lower light source 2, but also the peripheral lamp group 22 capable of being controlled in a partition mode can adjust the heavily illuminated area of the lower light source 2, different illumination modes of the peripheral lamp group 22 can be selected to illuminate the observed object on the glass slide at different angles, the number and the manner of turning on the peripheral lamp groups 22 are determined according to different experimental conditions, as shown in fig. 3 to 5, the peripheral lamp group 22 is divided into four regions on average, and fig. 3 shows a state where the central lamp group 21 and the peripheral lamp group 22 of the lower light source 2 are all turned on; fig. 4 shows a situation that the central light group 21 of the lower light source 2 is turned on and the peripheral light group 22 lights on the same side, and the turning-on mode is suitable for a situation that the brightness of one side of the observed object is insufficient; fig. 5 shows a case where the central light group 21 of the lower light source 2 is turned on and the peripheral light group 22 lights the lights of the opposite sides, which is suitable for a case where the brightness of the opposite sides of the observed object is not enough or the observed object is relatively clear, and there is no need for too many light sources; the same partitioning structure of the peripheral light group 22 in fig. 3 to 5 is only one case in the present embodiment, and also for better operation of the light source, the peripheral light group 22 can be set to more areas, and the lower light source 2 can be operated more accurately by partitioning control.

And the upper light source 1 and the lower light source 2 are both LED lamp groups, the LED lamp groups can illuminate an object to be observed through the characteristic of high brightness of LED light, and meanwhile, the LED light color is purer and is more beneficial to the accuracy in observation.

In this embodiment, as shown in fig. 1, it further includes a controller 4, the controller 4 is respectively connected to the upper light source 1 and the lower light source 2, the controller 4 can independently control the on/off of the upper light source 1 and the lower light source 2, preferably, the partition control of the peripheral light group 22 is also controlled by the controller 4, the controller 4 can be installed on the frame of the microscope, and can also be independently set for the convenience of the operation of the observer, the controller 4 independently controls the on/off of the upper and lower light sources 2 to be suitable for different external environments, the upper light source 1 and/or the lower light source 2 are selectively turned on according to different external light intensities, the light source brightness of the upper light source 1 and the lower light source 2 is also controlled by the controller 4, the focal length of the upper light source 1 and the turning-on area of the peripheral light group 22 of the lower light source 2 are also controlled by the controller 4, the connection of the controller 4 with the upper light source 1 and the lower light, also can be through wire connection control, when adopting the wire connection, because go up light source base 11 and can drive light source 1 and carry out the adjustment of position, so can leave one section mobilizable wire with the wire length that controller 4 and last light source 1 are connected as required for the position of 11 vertical directions on the adjustment.

In this embodiment, objective table 5 is high printing opacity material, and is preferred, and the objective table is high printing opacity glass or quartz materials, because light source 2 is directly shone by the bottom down, and the area is great, and luminance is stronger, so set up objective table 5 to the propagation of light source 2 light under the high printing opacity material does benefit to more.

In this embodiment, the lower light source base 23 is a circular light source base 3.

In this embodiment, the central lamp group 21 is circular, and the peripheral lamp group 22 is annular and surrounds the central lamp group 21.

In the using process, firstly, a glass slide is placed on an object stage 5, a central lamp group 21 and an upper light source 1 of a lower light source 2 are turned on, an object on the object stage 5 can be seen clearly through adjusting an objective lens 6 and an ocular lens, then, the focal length and the focusing direction of the upper light source 1 and the number of lighting of a peripheral lamp group 22 of the lower light source 2 are adjusted until the brightness of the upper light source 1 and the brightness of the lower light source 2 are adjusted to be suitable for observation or photographing record, and in order to ensure that the photographed object keeps the original color tone, the control can be carried out by adjusting the brightness of the upper light source 2 and the brightness of the peripheral lamp group 22 in the photographing process.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. The utility model provides a microscope that device has last light source, wherein lens cone, microscope arm and microscope base connect gradually and constitute microscope's support body structure objective and install on the lens cone, objective table horizontal installation is on the microscope base to will enlarge its characterized in that through objective with the object on the objective table: the upper light source base is annularly sleeved on a lens tube of the objective lens, and is provided with an upper light source, and the light of the upper light source faces to the objective table.

2. A microscope having an upper light source according to claim 1, wherein: the upper light source is at least four irradiation points, and is arranged on the upper light source base in a pairwise opposite and equidistant manner;

the upper light source is a ring-shaped lamp strip.

3. A microscope having an upper light source according to claim 2, wherein: the focal length and the focusing position of the upper light source are adjustable;

the upper light source is rotatably connected with the upper light source base through a rotating guide rod.

4. A microscope having an upper light source according to claim 1, wherein: the upper light source base is provided with a locking piece, a working amount is arranged between the upper light source base and a lens tube of the microscope objective lens, and the upper light source base can slide along the radial direction of the microscope objective lens and is locked and fixed through the locking piece;

the upper light source base is provided with a fracture and is in a shape of a locking pipe ring, the upper light source base has a working amount with the lens tube of the objective lens when the diameter of the upper light source base is the largest, and the upper light source base is fixed on the lens tube of the objective lens after the screw is tightened.

5. A microscope having an upper light source according to claim 1, wherein: the microscope further comprises a lower light source and a lower light source base, wherein the lower light source base is fixed below an objective table of the microscope, a lower light source is arranged in the lower light source base, and light rays of the lower light source face the objective table.

6. A microscope having an upper light source according to claim 5, wherein: the lower light source at least comprises a central lamp group and a peripheral lamp group, the central lamp group and the peripheral lamp group are controlled in a partition mode, the peripheral lamp group is divided into a plurality of areas, and each area can be independently turned on and off;

the upper light source and the lower light source are both LED lamp sets.

7. A microscope having an upper light source according to claim 6, wherein: the controller is respectively connected with the upper light source and the lower light source and can independently control the on-off of the upper light source and the lower light source;

the zone control of the peripheral light groups is also controlled by the controller.

8. A microscope having an upper light source according to claim 5, wherein: the objective table is made of high-light-transmission materials;

the object stage is made of high-light-transmission glass or quartz material.

9. A microscope having an upper light source according to claim 5, wherein: the lower light source base is a circular light source base.

10. A microscope having an upper light source according to claim 6, wherein: the central lamp group is circular, and the peripheral lamp group is annular and surrounds the central lamp group.