Large eyepiece microscope[ Field of technology ]
The invention belongs to the field of electron optics and video microscopes, and particularly relates to a large eyepiece microscope.
[ Background Art ]
Microscope is the most common scientific research instrument, especially optical microscope, and is widely applied to the fields of scientific research teaching, industry, biology and the like. Generally, a conventional optical microscope is provided with an eyepiece, and the eyepiece comprises an eyepiece, an objective lens, a focusing screw and the like, so that human eyes need to observe through the eyepiece. When the microscope is used, the eyes of a person need to be aligned with the exit pupil of an eyepiece of the microscope, movement of eyes and head bodies is limited, long-time use is not facilitated, discomfort, physical fatigue and the like of an observer are easily caused, an improved microscope for connecting with a screen for observation gradually appears in the market, and an electronic screen is externally connected with the microscope externally connected with the screen through a structure independent of the microscope, and an image of amplified information is transmitted for the observer to observe from the screen. However, this mode of microscope still has problems to be solved for some scenarios, especially in some biological fields, involving operation under the microscope. When an observer uses the microscope in the mode, the area of the observed image is inconsistent with the area of the observed object operated by hands, and the work of the observer is not facilitated due to the inconsistency, so that the work efficiency and the operation precision are limited.
The present invention has been made in view of the above-described drawbacks.
[ Invention ]
The invention aims to overcome the defects of the prior art, provides the large eyepiece microscope, so as to relieve the limitation on the visual field range of an observer, facilitate the observer to observe an image in a larger space range, reduce fatigue, realize that the observed image position is consistent with the observed object position, facilitate operation and improve the working efficiency and the operation precision.
The invention is realized by the following technical scheme:
A large eyepiece microscope comprises an objective table 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 reflection light path.
Below the objective lens set 1 is an objective table 7 for carrying an observed object, and the objective lens set 1 is used for collecting an image of the observed object placed on the objective table 7 and transmitting the collected image to the camera module 2 in a zooming and focusing mode.
The camera module 2 is connected with an image data processing module 3, and the camera module 2 is located above the objective lens group 1 and is used for collecting an image amplified by the objective lens group 1 and converting an optical signal of the object amplified image into an electric signal to be transmitted to the image data processing module 3.
The image data processing module 3 is also connected to the electronic screen module 4 to transmit an electrical signal of the enlarged image of the observed object to the electronic screen module 4 for display.
The viewing means are arranged close to the human eye 11 side of the observer for transforming the image displayed on the electronic screen module 4 for observation by the observer.
The observation device comprises a reflecting mirror 5 and a protective screen 6, wherein the reflecting mirror 5 is positioned below one side of the electronic screen module 4 for displaying images, the reflecting mirror 5 is used for changing the direction of the images displayed on the electronic screen module 4 so that the position of a virtual image 10 after imaging is the same as the position of an observed object or the requirement of large eyepiece observation is realized nearby the virtual image, the protective screen 6 is positioned at one side of the reflecting mirror 5 for reflecting the images and is positioned between the reflecting mirror 5 and a human eye 11 for protection, and a movable rotating shaft 8 for adjusting the angle of the reflecting mirror 5 is further connected to the lower side of the reflecting mirror 5 so as to change the position of the observed virtual image 10 and the observation position of the human eye 11.
The observation device is a lens group 12 which is connected to the electronic screen module 4 in parallel and is positioned at one side of the electronic screen module 4 for displaying images, the lens group 12 is positioned between the human eye 11 and the electronic screen module 4 so as to facilitate an observer to observe the images which are sent out by the electronic screen module 4 and amplified by the lens group 12, and a movable rotating shaft 8 for adjusting the angles of the lens group 12 and the electronic screen module 4 is also connected between the lens group 12 and the electronic screen module 4 so as to change the position of the observed virtual image 10 and the observation position of the human eye 11.
The observation device comprises a reflecting mirror 5 and a lens group 12, wherein the reflecting mirror 5 is positioned below one side of the electronic screen module 4 for displaying images, the reflecting mirror 5 is used for changing the propagation direction of the images displayed on the electronic screen module 4, so that the spatial position of a virtual image is positioned at the same side as an observed object, and the requirement of large eyepiece observation is met, the lens group 12 is positioned at one side of the reflecting mirror 5 for reflecting the images and between the reflecting mirror 5 and a human eye 11, so that an observer observes an enlarged image which is sent by the reflecting mirror 5 and is close to an observed object after being imaged by the lens group 12, and a moving rotating shaft 8 for adjusting the angle of the moving rotating shaft is also connected to the lower side of the reflecting mirror 5, so that the position of the observed virtual image 10 and the observation position of the human eye 11 are changed.
When the center position of the electronic screen module 4 and the position of the measured object are symmetrical about the plane 9 where the reflecting mirror 5 is positioned, the position of the virtual image 10 coincides with the position of the measured object.
The position of the virtual image formed by the lens group 12 can be consistent with the position of the measured object by adjusting the moving rotating shaft 8.
The input end of the camera module 2 coincides with the focal point of the output end of the objective lens group 1.
The camera module 2 is a CCD sensor or a CMOS sensor.
The microscope is provided with an illumination source 13 for illuminating the object to be measured.
The image data processing module 3 is provided with an expansion port, and the expansion port is connected with an external upper computer and is used for transmitting the electric signals of the processed image of the measured object to the external upper computer.
Compared with the prior art, the invention has the beneficial effects that:
1. Through electronic screen module luminous, the speculum formation of image, the observer can observe the image of measured object without the eyepiece, provides bigger observation scope, and the observer sees the formation of image more easily, and is more convenient to realize the demand of the big visual field scope of big eyepiece.
2. Through adjusting the movable rotating shaft, the direction and the position of the reflecting mirror can be adjusted, so that the position of a virtual image observed by human eyes is changed, and an observer can select a comfortable position to observe, thereby relieving fatigue. When the center position of the luminous screen of the electronic screen module and the position of the measured object are symmetrical about the plane where the reflecting mirror is positioned, based on the optical basic principle, the center of the virtual image observed by human eyes is consistent with the position of the measured object, so that an observer can conveniently perform experimental operation under a microscope.
3. By designing the use of a single mirror, the cost is low compared to solutions using multiple mirrors.
[ Description of the drawings ]
Fig. 1 is a schematic diagram of the principle structure and the optical path of the first embodiment of the present invention.
FIG. 2 is a schematic diagram of a second principle structure and an optical path according to the first embodiment of the present invention.
Fig. 3 is a schematic diagram of the principle structure and the optical path of the second embodiment of the present invention.
FIG. 4 is a schematic diagram of a second principle structure and an optical path of a second embodiment of the present invention.
Fig. 5 is a schematic diagram of the principle structure and the optical path of the third embodiment of the present invention.
In fig. 1 to 5, 1 objective lens group, 2 camera module, 3 image data processing module, 4 electronic screen module, 5 reflector, 6 protection screen, 7 objective table, 8 movable rotating shaft, 9 plane of reflector 5, 10 virtual image observed by human eye, 11 human eye, 12 lens group, 13 illumination light source.
[ Detailed description ] of the invention
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 5, a large eyepiece microscope of the present invention includes a stage 7, an objective lens group 1, a camera module 2, an electronic screen module 4, and an observation device for observing an image, which are sequentially provided along a reflection optical path.
Below the objective lens set 1 is an objective table 7 for carrying an observed object, and the objective lens set 1 is used for collecting an image of the observed object placed on the objective table 7 and transmitting the collected image to the camera module 2 in a zooming and focusing mode.
The camera module 2 is connected with an image data processing module 3, and the camera module 2 is located above the objective lens group 1 and is used for collecting an image amplified by the objective lens group 1 and converting an optical signal of the object amplified image into an electric signal to be transmitted to the image data processing module 3.
The image data processing module 3 is also connected to the electronic screen module 4 to transmit an electrical signal of the enlarged image of the observed object to the electronic screen module 4 for display.
The viewing means are arranged close to the human eye 11 side of the observer for transforming the image displayed on the electronic screen module 4 for observation by the observer.
When the microscope operation is performed, the object to be measured is placed on the stage 7, appropriate external illumination is adjusted to provide enough light to illuminate the object to be measured, the objective lens group 1 is adjusted to an appropriate magnification, and the focal position is adjusted to the object to be measured. The light of the measured object is collected by the objective lens group 1 and is amplified and imaged by the objective lens group 1 to irradiate on the sensing part of the camera module 2, the amplified image is collected by the camera module 2 and is transmitted to the image data processing module 3, the image data is transmitted to the electronic screen module 4 after being processed, the electronic screen module 4 emits light to emit the amplified image of the measured object, the light emitted by the electronic screen module 4 is observed by the human eye 11 after being transformed by the observation device, and the observed virtual image 10 center is consistent with the measured object position.
The input end of the camera module 2 coincides with the focal point of the output end of the objective lens group 1. The image of the observed object amplified by the objective lens group 1 can be acquired more accurately, and the acquisition efficiency is improved.
The camera module 2 is a CCD sensor or a CMOS sensor. The optical signal of the image amplified by the objective lens group 1 can be better converted into an electric signal, and the conversion efficiency and the transmission efficiency can be improved.
The microscope is provided with an illumination source 13 for illuminating the object to be measured. The object to be measured can be conveniently observed, the observation effect is improved, and the illumination light source 13 can also be added in the objective table 7 to provide illumination for the light-permeable object.
The image data processing module 3 is provided with an expansion port, and the expansion port is connected with an external upper computer and is used for transmitting the electric signals of the processed image of the measured object to the external upper computer.
Embodiment one:
As shown in fig. 1 to 2, the observation device comprises a reflecting mirror 5 and a protective screen 6, wherein the reflecting mirror 5 is positioned below one side of the electronic screen module 4 for displaying images, the reflecting mirror 5 is used for changing the direction of the images displayed on the electronic screen module 4 so that the position of a virtual image 10 after imaging is the same as the position of an observed object or the requirement of large eyepiece observation is realized near the position of the observed object, the protective screen 6 is positioned at one side of the reflecting mirror 5 for reflecting the images and is positioned between the reflecting mirror 5 and a human eye 11 for protection, and a moving rotating shaft 8 for adjusting the angle of the reflecting mirror 5 is also connected to the lower side of the reflecting mirror 5 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 reflecting mirror 5 is adjusted to the position that the center of the electronic screen and the position of the object to be measured are symmetrical with respect to the plane 9 where the reflecting mirror 5 is positioned, based on the optical basic 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 coincides with the position of the object to be measured, so that the spatial discomfort of the observer is eliminated, and the experimental operation of the observer under the microscope is facilitated. When the position of the reflecting mirror 5 is adjusted so that the virtual image is positioned right in front of the line of sight in the normal viewing posture of the person, it is possible to facilitate continuous long-time viewing by the observer in a comfortable posture, and to alleviate fatigue.
When the center position of the electronic screen module 4 and the position of the measured object are symmetrical about the plane 9 where the reflecting mirror 5 is positioned, the position of the virtual image 10 coincides with the position of the measured object. Through electronic screen luminescence, the speculum 5 images, and the observer can observe the image of measured object without traditional eyepiece to realize the demand of big eyepiece large-view observation, provide bigger observation scope, the observer sees the formation of image more easily, and is more convenient. The angle of the reflecting mirror 5 can be adjusted by adjusting the moving rotating shaft 8, so that the position of a virtual image observed by human eyes is changed, and an observer can select a comfortable position to observe, thereby reducing fatigue.
The mirror 5 is a single lens in order to save costs.
Embodiment two:
As shown in fig. 3 to 4, the observation device is a lens group 12 connected to the electronic screen module 4 in parallel and located at 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 observes the image amplified by the lens group 12 sent by the electronic screen module 4, and a moving rotating shaft 8 for adjusting the angle of the lens group 12 and the electronic screen module 4 is also connected between the lens group 12 and the electronic screen module 4, so as to change the position of the observed virtual image 10 and the observation position of the human eye 11. The lens assembly 12 is mainly used for changing the virtual image position in the observation device, and can also be used for magnifying the image of the electronic plane module 4 when the design requirement exists.
As shown in fig. 3, when the moving shaft 8 is adjusted to observe an image, the position of the virtual image 10 coincides with the position of the measured object, so as to eliminate the sense of spatial incongruity of the observer, facilitate the operation, and based on the optical basic principle, the center of the virtual image 10 observed by the human eye 11 coincides with the position of the measured object, so as to facilitate the experimental operation of the observer under the microscope.
As shown in fig. 4, when the movement axis 8 is adjusted so that the virtual image 10 is positioned directly in front of the line of sight in the normal viewing posture of a person, it is possible to facilitate continuous long-time viewing by the observer in a comfortable posture, and to alleviate fatigue.
Embodiment III:
As shown in fig. 5, the observation device comprises a reflecting mirror 5 and a lens group 12, wherein the reflecting mirror 5 is positioned below one side of the electronic screen module 4 for displaying an image, the reflecting mirror 5 is used for changing the propagation direction of the image displayed on the electronic screen module 4, so that the space position of a virtual image is positioned at the same side as an observed object, and the requirement of large eyepiece observation is realized, the lens group 12 is positioned at one side of the reflecting mirror 5 for reflecting the image and between the reflecting mirror 5 and a human eye 11, so that an observer observes an enlarged image which is sent by the reflecting mirror 5 and is close to the observed object after being imaged by the lens group 12, and a moving rotating shaft 8 for adjusting the angle of the moving rotating shaft is also connected to the lower side of the reflecting mirror 5, so as to change the position of the observed virtual image 10 and the observation position of the human eye 11.
Through adjusting the movable rotating shaft, the angle of the reflecting mirror can be adjusted, so that the position of a virtual image observed by human eyes is changed, an observer can select a comfortable position for observation, and fatigue is reduced. The difference between the third embodiment and the second embodiment is that the transverse space structure of the third embodiment may be more compact, and the partial transverse space in the second embodiment is converted into the longitudinal space by the reflecting mirror 5, so that the volume appearance design may be optimized.