A microscope with large eyepiece

Abstract

The present invention discloses a large eyepiece microscope, including a stage, an objective lens group, a camera module, an electronic screen module and an observation device for observing images, which are arranged in sequence along the light reflection path. The invention uses the electronic screen module to emit light, and the reflector to form an image. The observer can observe the image of the object under test without the eyepiece, providing a larger observation range, making it easier for the observer to see the image, and more convenient, thereby meeting the requirements of a large eyepiece with a large field of view. At the same time, by adjusting the movable shaft, the direction and position of the reflector can be adjusted, thereby changing the position of the virtual image observed by the human eye, allowing the observer to choose a comfortable position for observation and reduce fatigue.

Description

[Technical field]

[0001] The invention belongs to the field of electronic optics and video microscopes, in particular to a large eyepiece microscope. [Background technology]

[0002] Microscopes are the most common scientific research instruments, especially optical microscopes, which are widely used in scientific research, teaching, industry, biology and other scenes and fields. Usually, traditional optical microscopes are equipped with eyepieces, which are composed of eyepieces, objective lenses, focusing screws and other parts, and the human eye needs to observe through the eyepieces. When using this kind of microscope, the human eye needs to be aligned with the exit pupil of the microscope eyepiece, which limits the movement of the human eye and head body, is not conducive to long-term use, and is easy to cause discomfort and physical fatigue to the observer. In response to this, improved microscopes connected to screens for observation are gradually appearing on the market. Microscopes with external screens are connected to electronic screens through structures independent of the microscope, and the images of magnified information are transmitted for the observer to observe from the screen. However, this type of microscope still has problems to be solved for some scenes, especially some biological fields, involving operations under the microscope. When the observer uses this type of microscope, the area where the image is observed is inconsistent with the area where the observed object is located during the hands-on operation. This incoordination is not conducive to the observer's work and limits work efficiency and operation accuracy.

[0003] The present invention is just produced based on the above shortcomings. [Summary of the invention]

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a large eyepiece microscope to remove the limitation on the observer's field of view, so that the observer can observe images in a larger spatial range, reduce fatigue, and make the position of the observed image consistent with the position of the observed object, facilitate operation, and improve work efficiency and operation accuracy.

[0005] The present invention is achieved through the following technical solutions:

[0006] A large eyepiece microscope comprises a stage 7, an objective lens group 1, a camera module 2, an electronic screen module 4 and an observation device for observing images which are sequentially arranged along a reflected light path.

[0007] Below the objective lens group 1 is a stage 7 for carrying the observed object. The objective lens group 1 is used to collect images of the observed object placed on the stage 7, and to transmit the collected images to the camera module 2 after zooming and focusing.

[0008] The camera module 2 is connected to the image data processing module 3 . The camera module 2 is located above the objective lens group 1 and is used to collect the image magnified by the objective lens group 1 , and convert the optical signal of the magnified image of the object into an electrical signal and transmit it to the image data processing module 3 .

[0009] The image data processing module 3 is also connected to the electronic screen module 4 to transmit the electrical signal of the magnified image of the observed object to the electronic screen module 4 for display.

[0010] The observation device is arranged close to the observer's human eye 11 to transform the image displayed on the electronic screen module 4 for observation by the observer.

[0011] The observation device includes a reflector 5 and a protective screen 6. The reflector 5 is located below the side of the electronic screen module 4 displaying the image. The reflector 5 is used to change the direction of the image displayed on the electronic screen module 4 so that the position of the virtual image 10 after imaging is the same as the position of the observed real object or near it to meet the requirement of large eyepiece observation; the protective screen 6 is located on the side of the reflector 5 reflecting the image and is located between the reflector 5 and the human eye 11 to play a protective role; the lower side of the reflector 5 is also connected to a movable shaft 8 for adjusting its angle, so as to change the position of the observed virtual image 10 and the observation position of the human eye 11.

[0012] The observation device is a lens group 12 connected in parallel to the electronic screen module 4 and located on the side of the electronic screen module 4 displaying the image. The lens group 12 is located between the human eye 11 and the electronic screen module 4, so that the observer can observe the image emitted by the electronic screen module 4 and magnified by the lens group 12. A movable shaft 8 is also connected between the lens group 12 and the electronic screen module 4 for adjusting the angle between the two, so as to change the position of the observed virtual image 10 and the observation position of the human eye 11.

[0013] The observation device includes a reflector 5 and a lens group 12. The reflector 5 is located below the side of the electronic screen module 4 displaying the image. The reflector 5 is used to change the propagation direction of the image displayed on the electronic screen module 4 so that the spatial position of the virtual image is on the same side as the observed object and the need for large eyepiece observation is met; the lens group 12 is located on the side of the reflector 5 reflecting the image and between the reflector 5 and the human eye 11, so that the observer can observe the magnified image emitted by the reflector 5 after imaging by the lens group 12 and at a position close to the observed real object; the lower side of the reflector 5 is also connected to a movable shaft 8 for adjusting its angle to change the position of the observed virtual image 10 and the observation position of the human eye 11.

[0014] When the center position of the electronic screen module 4 and the position of the object to be measured are symmetrical about the plane 9 where the reflector 5 is located, the position of the virtual image 10 coincides with the position of the object to be measured.

[0015] By adjusting the movable rotating shaft 8, the position of the virtual image formed by the lens group 12 can be made consistent with the position of the object to be measured.

[0016] The input end of the camera module 2 and the output end of the objective lens group 1 have focal points that coincide with each other.

[0017] The camera module 2 is a CCD sensor or a CMOS sensor.

[0018] The microscope is provided with an illumination light source 13 for providing illumination to the object to be measured.

[0019] The image data processing module 3 has an expansion port, which is connected to an external host computer for transmitting the processed electrical signal of the image of the measured object to the external host computer.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the light emission of the electronic screen module and the image formation of the reflector, the observer can observe the image of the object under test without the need for an eyepiece, providing a larger observation range, making it easier for the observer to see the image and more convenient, thus meeting the needs of a large eyepiece with a large field of view.

[0022] 2. By adjusting the moving shaft, the direction and position of the reflector can be adjusted, thereby changing the position of the virtual image observed by the human eye, allowing the observer to choose a comfortable position for observation and reduce fatigue. When the center position of the light-emitting screen of the electronic screen module is symmetrical with the position of the object to be measured about the plane where the reflector is located, based on the basic principles of optics, the center of the virtual image observed by the human eye is consistent with the position of the object to be measured, which is convenient for the observer to operate the experiment under the microscope.

[0023] 3. By designing and using a single reflector, the cost is lower than that of solutions using multiple lenses.

Brief Description of the Drawings

[0024] Figure 1 This is one of the principle structure and optical path schematic diagrams of the first embodiment of the present invention.

[0025] Figure 2 This is the second schematic diagram of the principle structure and optical path of the first embodiment of the present invention.

[0026] Figure 3 This is one of the principle structure and optical path schematic diagrams of the second embodiment of the present invention.

[0027] Figure 4 This is the second schematic diagram of the principle structure and optical path of the second embodiment of the present invention.

[0028] Figure 5 It is a schematic diagram of the principle structure and optical path of the third embodiment of the present invention.

[0029] Figures 1 to 5In the figure, 1 is an objective lens group, 2 is a camera module, 3 is an image data processing module, 4 is an electronic screen module, 5 is a reflector, 6 is a protective screen, 7 is a stage, 8 is a moving shaft, 9 is a plane where the reflector 5 is located, 10 is a virtual image observed by the human eye, 11 is a human eye, 12 is a lens group, and 13 is an illumination light source. [Specific implementation method]

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] like Figures 1 to 5 As shown, a large eyepiece microscope of the present invention comprises a stage 7, an objective lens group 1, a camera module 2, an electronic screen module 4 and an observation device for observing images which are sequentially arranged along a reflected light path.

[0032] Below the objective lens group 1 is a stage 7 for carrying the observed object. The objective lens group 1 is used to collect images of the observed object placed on the stage 7, and to transmit the collected images to the camera module 2 after zooming and focusing.

[0033] The camera module 2 is connected to the image data processing module 3 . The camera module 2 is located above the objective lens group 1 and is used to collect the image magnified by the objective lens group 1 , and convert the optical signal of the magnified image of the object into an electrical signal and transmit it to the image data processing module 3 .

[0034] The image data processing module 3 is also connected to the electronic screen module 4 to transmit the electrical signal of the magnified image of the observed object to the electronic screen module 4 for display.

[0035] The observation device is arranged close to the observer's human eye 11 to transform the image displayed on the electronic screen module 4 for observation by the observer.

[0036] When operating the microscope, the object to be measured is placed on the stage 7, and appropriate external lighting is adjusted to provide sufficient light to illuminate the object to be measured. The objective lens group 1 is adjusted to an appropriate magnification and the focus position is on the object to be measured. The light of the object to be measured is collected by the objective lens group 1 and magnified by the objective lens group 1 to irradiate the sensing part of the camera module 2. The camera module 2 collects the magnified image and transmits it to the image data processing module 3. The image data is processed and transmitted to the electronic screen module 4. The electronic screen module 4 emits light to emit a magnified image of the object to be measured. The light emitted by the electronic screen module 4 is transformed and processed by the observation device and observed by the human eye 11, and the center of the observed virtual image 10 is consistent with the position of the object to be measured.

[0037] The input end of the camera module 2 coincides with the focus of the output end of the objective lens group 1. The image of the observed object magnified by the objective lens group 1 can be collected more accurately, thereby improving the collection efficiency.

[0038] The camera module 2 is a CCD sensor or a CMOS sensor, which can better convert the optical signal of the image magnified by the objective lens group 1 into an electrical signal, thereby improving the conversion efficiency and the transmission efficiency.

[0039] The microscope is provided with an illumination light source 13 for providing illumination to the object to be measured. It is convenient to observe the object to be measured and increase the observation effect. The illumination light source 13 can also be added to the stage 7 to provide illumination to the light-transmitting object.

[0040] The image data processing module 3 has an expansion port, which is connected to an external host computer for transmitting the processed electrical signal of the image of the measured object to the external host computer.

[0041] Embodiment 1:

[0042] like Figure 1 to Figure 2 As shown, the observation device includes a reflector 5 and a protective screen 6. The reflector 5 is located below the side of the electronic screen module 4 displaying the image. The reflector 5 is used to change the direction of the image displayed on the electronic screen module 4 so that the position of the virtual image 10 after imaging is the same as the position of the observed object or near it to meet the requirement of large eyepiece observation; the protective screen 6 is located on the side of the reflector 5 reflecting the image and is located between the reflector 5 and the human eye 11 to play a protective role; the lower side of the reflector 5 is also connected to a movable shaft 8 for adjusting its angle, so as to change the position of the observed virtual image 10 and the observation position of the human eye 11. When the position of the reflector 5 is adjusted to the point that the center position of the electronic screen and the position of the object to be measured are symmetrical about the plane 9 where the reflector 5 is located, based on the basic optical principle, the position of the virtual image 10 coincides with the position of the object to be measured, and the center of the virtual image 10 observed by the human eye 11 is consistent with the position of the object to be measured, so as to eliminate the observer's sense of spatial disharmony and facilitate the observer to perform experimental operations under the microscope. When the position of the reflector 5 is adjusted so that the virtual image is located directly in front of the line of sight in a normal viewing posture, the observer can observe continuously for a long time in a comfortable posture and reduce fatigue.

[0043] When the center position of the electronic screen module 4 is symmetrical with the position of the object to be measured about the plane 9 where the reflector 5 is located, the position of the virtual image 10 coincides with the position of the object to be measured. Through the light emission of the electronic screen and the image formation of the reflector 5, the observer can observe the image of the object to be measured without the need for a traditional eyepiece, thereby meeting the needs of large eyepiece and wide field of view observation, providing a larger observation range, making it easier for the observer to see the image, and more convenient. By adjusting the movable shaft 8, the angle of the reflector 5 can be adjusted, thereby changing the position of the virtual image observed by the human eye, allowing the observer to choose a comfortable position for observation and reduce fatigue.

[0044] The reflector 5 is a single lens to save costs.

[0045] Embodiment 2:

[0046] like Figure 3 to Figure 4 As shown, the observation device is a lens group 12 connected in parallel to the electronic screen module 4 and located on the side where the electronic screen module 4 displays the image. The lens group 12 is located between the human eye 11 and the electronic screen module 4, so that the observer can observe the image emitted by the electronic screen module 4 and magnified by the lens group 12. A movable shaft 8 for adjusting the angle between the lens group 12 and the electronic screen module 4 is also connected to change the position of the observed virtual image 10 and the observation position of the human eye 11. As described above, the lens group 12 in the observation device is mainly used to change the position of the virtual image. When there is a design requirement, the image of the electronic plane module 4 can also be magnified.

[0047] like Figure 3 As shown, when the movable rotating shaft 8 is adjusted so that when the image is observed, the position of the virtual image 10 coincides with the position of the object to be measured, so as to eliminate the observer's sense of spatial disharmony and facilitate operation. Based on the basic principles of optics, the center of the virtual image 10 observed by the human eye 11 is consistent with the position of the object to be measured, which is convenient for the observer to perform experimental operations under the microscope. Compared with the first embodiment, the device of the second embodiment is more compact in spatial structure and can optimize the volume.

[0048] like Figure 4 As shown, when the movable rotating shaft 8 is adjusted so that the virtual image 10 is located directly in front of the line of sight in a normal viewing posture of a person, it is convenient for the observer to observe continuously for a long time in a comfortable posture and reduce fatigue.

[0049] Embodiment three:

[0050] like Figure 5 As shown, the observation device includes a reflector 5 and a lens group 12, wherein the reflector 5 is located below the side of the electronic screen module 4 displaying the image, and the reflector 5 is used to change the propagation direction of the image displayed on the electronic screen module 4 so that the spatial position of the virtual image is on the same side as the observed object and the requirement of large eyepiece observation is met; the lens group 12 is located on the side of the reflector 5 reflecting the image and between the reflector 5 and the human eye 11, so that the observer can observe the magnified image emitted by the reflector 5 after imaging by the lens group 12 and at a position close to the observed real object; the lower side of the reflector 5 is also connected to a movable shaft 8 for adjusting its angle to change the position of the observed virtual image 10 and the observation position of the human eye 11.

[0051] By adjusting the movable rotating shaft, the angle of the reflector can be adjusted, thereby changing the position of the virtual image observed by the human eye, allowing the observer to choose a position he considers comfortable for observation, thereby reducing fatigue. The difference between the third embodiment and the second embodiment is that the lateral space structure of the third embodiment can be more compact, and part of the lateral space in the second embodiment is converted into a longitudinal space through the reflector 5, which can optimize the volume shape design.

Claims

1. A large eyepiece microscope, characterized in that: It comprises an object platform (7), an objective lens group (1), a camera module (2), an electronic screen module (4) and an observation device for observing images, which are sequentially arranged along a reflected light path; Below the objective lens group (1) is an object carrier (7) for carrying an observed object, and the objective lens group (1) is used to collect an image of the observed object placed on the object carrier (7), and to transmit the collected image to the camera module (2) by variable magnification and focusing. The camera module (2) is connected to an image data processing module (3); the camera module (2) is located above the objective lens group (1) and is used to collect the image magnified by the objective lens group (1), and convert the optical signal of the magnified image of the object into an electrical signal and transmit it to the image data processing module (3); The image data processing module (3) is also connected to the electronic screen module (4) to transmit the electrical signal of the magnified image of the observed object to the electronic screen module (4) for display; The observation device is arranged close to the observer's human eye (11) and is used to transform the image displayed on the electronic screen module (4) so ​​that the observer can observe it. The observation device comprises a reflector (5) and a protective screen (6); the reflector (5) is located below a side of an electronic screen module (4) displaying an image; the reflector (5) is used to change the direction of an image displayed on the electronic screen module (4) so ​​that the position of a virtual image (10) after imaging is the same as or near the position of a real object to be observed, thereby realizing the requirement of large eyepiece observation; the protective screen (6) is located on a side of the reflector (5) reflecting an image and between the reflector (5) and a human eye (11) to play a protective role; the lower side of the reflector (5) is also connected to a movable rotating shaft (8) for adjusting its angle, so as to change the position of the observed virtual image (10) and the observation position of the human eye (11).

2. A large eyepiece microscope according to claim 1, characterized in that: The observation device is a lens group (12) connected in parallel to the electronic screen module (4) and located on the side of the electronic screen module (4) displaying an image. The lens group (12) is located between the human eye (11) and the electronic screen module (4) so ​​that the observer can observe the image emitted by the electronic screen module (4) and magnified by the lens group (12). A movable rotating shaft (8) is also connected between the lens group (12) and the electronic screen module (4) for adjusting the angle between the two so as to change the position of the observed virtual image (10) and the observation position of the human eye (11).

3. A large eyepiece microscope according to claim 1, characterized in that: The observation device comprises a reflector (5) and a lens group (12); the reflector (5) is located below a side of an electronic screen module (4) displaying an image; the reflector (5) is used to change the propagation direction of the image displayed on the electronic screen module (4) so ​​that the spatial position of the virtual image is on the same side as the observed object and the requirement of large eyepiece observation is met; the lens group (12) is located on a side of the reflector (5) reflecting the image and between the reflector (5) and a human eye (11) so that an observer can observe an enlarged image emitted by the reflector (5) and formed by the lens group (12) at a position close to the observed object; and the lower side of the reflector (5) is also connected to a movable rotating shaft (8) for adjusting its angle so as to change the position of the observed virtual image (10) and the observation position of the human eye (11).

4. A large eyepiece microscope according to claim 2, characterized in that: When the center position of the electronic screen module (4) and the position of the object to be measured are symmetrical about the plane (9) where the reflector (5) is located, the position of the virtual image (10) coincides with the position of the object to be measured.

5. A large eyepiece microscope according to claim 2 or 3, characterized in that: By adjusting the movable rotating shaft (8), the position of the virtual image formed by the lens group (12) can be made consistent with the position of the object to be measured.

6. A large eyepiece microscope according to claim 1, characterized in that: The input end of the camera module (2) coincides with the focus of the output end of the objective lens group (1).

7. A large eyepiece microscope according to claim 1, characterized in that: The camera module (2) is a CCD sensor or a CMOS sensor.

8. A large eyepiece microscope according to claim 1, characterized in that: The microscope is provided with an illumination light source (13) for illuminating the object to be measured.

9. A large eyepiece microscope according to claim 1, characterized in that: The image data processing module (3) has an expansion port, which is connected to an external host computer and is used to transmit the processed electrical signal of the image of the measured object to the external host computer.

Images