TWI513999B - Stereoscopic microscope system - Google Patents

Description

Stereo microscope system

The present invention relates to a microscope, and more particularly to a stereoscopic microscope system.

In order to enhance the display technology of the microscope, the conventional monocular microscope further develops the binocular microscope technology, among which the "Adapter lens system for a greenough-type stereomicroscope" of US Pat. No. 6,313,952 and "Greenough-" of US Pat. No. 7,777,941. The stereomicroscopic technique of the "Greenough" technique disclosed by the type stereomicroscope is to replace the single objective lens in the conventional microscope with a dual objective lens, and the two objective lenses are sandwiched by 10-17 degrees to simulate the stereoscopic effect produced by human eye vision. Among them, the main structure is to use two eyepieces and an objective lens for precise assembly to form two symmetrical optical systems. The design concept of "Greenough" stereo microscope is similar to that of a general duplex microscope. The objective lens with a high numerical aperture can be selected to change its magnification. However, this system has a tilt angle due to the observation of the object by the two objective lenses, resulting in observation from the eyepiece. The result of the experiment will have trapezoidal distortion, and the magnification of the dual objective lens will be fixed when the microscope is assembled, so the magnification will be limited.
In addition, the "Confocal microscope" disclosed in PCT Patent No. WO1997031282 uses a sophisticated scanning device to obtain two-dimensional planar images of a plurality of three-dimensional objects, and then combines these two-dimensional images to reconstruct a complete 3D image. Imagery, although it is possible to reconstruct a three-dimensional object using multiple layers of 2D imagery, it requires an expensive scanner and is not the best choice for the user.
In addition, the "Common Main Objective Stereomicroscope" technology disclosed in the "Objective for stereomicroscopes of the telescope type" of the US Patent No. 6717739 and the "Stereomicroscope" of the US Patent No. 7605975, the object image information will pass through a single lens. Distribute to the left and right channels and transmit the left and right image pairs to both eyes. This technology solves the problem of using dual lenses, but when the light path is divided into two lights, two sets of zoom lenses are still needed, and precision is also required. The alignment is not only effective in reducing the complexity, but also in the cost.
Summarizing the above three stereo microscope technologies, each has its own shortcomings, and it is necessary to improve.

The main object of the present invention is to solve the problem that the lens group of the stereo microscope is too complicated and the cost cannot be reduced.
Another object of the present invention is to solve the problem that the lens set of the stereo microscope is complicated to cause image distortion.
In order to achieve the above object, the present invention provides a stereoscopic microscope system for acquiring a stereoscopic image of an observation object and amplifying the image on an image capturing module, the image capturing module including a first image capturing component. And a second image capturing device, the stereoscopic microscope system is disposed between the observation object and the image capturing module, and the observation object includes a magnifying objective lens module and a beam splitting lens in sequence toward the image capturing module. And a condenser module. The center of the magnifying objective lens module is defined as a central axis extending toward the object and the image capturing module. The object is located on the central axis, and the magnifying objective lens module is disposed on the light of the object. The image is enlarged and outputted by a parallel light on a side of the magnifying objective module away from the object; the spectroscopic lens has a receiving surface for receiving the parallel light, and at least one first light emitting surface for performing light output and at least a second light-emitting surface, the at least one first light-emitting surface and the at least one second light-emitting surface are symmetrically disposed on the central axis, and the at least one first light-emitting surface and the at least one second light-emitting surface are respectively associated with the central axis The first light and the second light output are respectively outputted by the at least one first light emitting surface and the at least one second light emitting surface, and the first light and the second light are respectively received by the splitting lens. The two light rays are not parallel to each other; the center of the concentrating mirror module is disposed on the central axis, and the concentrating mirror module receives the first light and the second light and performs focusing, so that the first light and the second light are divided Focused on the first imaging device and the second imaging element.
As can be seen from the above description, the present invention has the following features:
First, the first light and the second light corresponding to the left and right eyes are respectively obtained and focused by the combination of the splitting lens and the condensing mirror module, thereby reducing the setting of the optical lens group, thereby reducing the manufacturing cost of the microscope system.
Second, the mirror group has a simple structure, reduces the complexity of the optical alignment, and effectively reduces the distortion problem.

11‧‧‧ Observations
12‧‧‧Image capture module
121‧‧‧First image taking component
122‧‧‧Second image taking component
13‧‧‧ center axis
14‧‧‧Parallel light
20‧‧・Magnifying objective lens module
30, 30a‧‧ ‧ split lens
31‧‧‧ Receiving surface
32, 32a‧‧‧The first shiny surface
33, 33a‧‧‧ second shiny surface
40‧‧‧Condenser module
51‧‧‧First light
52‧‧‧second light
61‧‧‧First displacement unit
62‧‧‧Second displacement unit
63‧‧‧ third displacement unit

FIG. 1 is a schematic structural view of a mirror assembly of the present invention.
FIG. 2 is a schematic structural view of a lens assembly according to another embodiment of the present invention.
FIG. 3 is a schematic structural view of a mirror group according to still another embodiment of the present invention.

The detailed description and technical content of the present invention will now be described as follows:
Referring to FIG. 1 , the present invention is a stereoscopic microscope system for acquiring a stereoscopic image of an observation object 11 and amplifying it, and imaging the image capturing module 12 on the image capturing module 12 . 12 includes a first image capturing component 121 and a second image capturing component 122. The stereoscopic microscope system is disposed between the object 11 and the image capturing module 12, and the object 11 is directed to the image capturing module. The 12-direction includes a magnifying objective lens module 20, a beam splitting lens 30, and a concentrating mirror module 40. The center of the magnifying objective lens module 20 is defined as a central axis 13 extending toward the object 11 and the image capturing module 12 . The object 11 is located on the central axis 13 , and the magnifying objective lens module 20 is disposed on the central axis 13 . Obtaining a light image of the object 11 and amplifying it, and outputting the parallel light 14 on the side of the magnifying objective lens module 20 away from the object of the object 11. In the embodiment, the magnifying objective lens module 20 is single. The infinity lens can be a convex lens, and the center of the magnifying objective lens module 20 refers to a position where the light passes through the lens without being deflected. Therefore, the observation object 11 is first disposed on the magnifying objective lens module 20. The focal length is between the focal length and the double focal length, and the image of the observation object 11 can be outputted as the parallel light 14 and has the function of aberrance, and the magnification can be 2X, 4X to 100X, which is illustrated. The magnifying objective lens module 20 referred to in the present invention may refer to a single lens sheet or a combination of a plurality of lenses, but the centers of all the lenses must correspond to the position of the central axis 13.
The beam splitting lens 30 has a receiving surface 31 for receiving the parallel light 14 and at least one first light emitting surface 32 and at least one second light emitting surface 33 for respectively outputting light, and the at least one first light emitting surface 32 and the at least one The second light-emitting surface 33 is symmetrically disposed on the central axis 13 , and the at least one first light-emitting surface 32 and the at least one second light-emitting surface 33 are respectively less than 90 degrees from the central axis 13 , and the spectroscopic lens 30 receives the After the parallel light 14 , a first light ray 51 and a second light ray 52 are respectively output from the first light absorbing surface 32 and the second light absorbing surface 33 . The first light ray 51 and the second light ray 52 are not parallel to each other. In other words, the spectroscopic lens 30 receives the parallel light 14 corresponding to the observation object 11 and transmits the parallel light 14 into the first light ray 51 and the second light ray 52 through the beam splitting lens 30, respectively. The image on the left side of the observation object 11 and the image on the right side. For example, the beam splitting lens 30 can be a single turn.
The center of the concentrating mirror module 40 is disposed on the central axis 13. The concentrating mirror module 40 receives the first ray 51 and the second ray 52 and focuses the first ray 51 and the second ray 52 respectively. In the first image capturing component 121 and the second image capturing component 122, the first image capturing component 121 and the second image capturing component 122 can directly represent an eye for observation, and the first image capturing component 121 and the first image capturing component 121 The second image capturing device 122 can also be a photographing device such as a CCD image capturing device, and further convert the observed image into a digital signal for output. Also, the concentrating mirror module 40 may refer to a single lens or a combination of a plurality of lenses, but the centers of all the lenses must correspond to the position of the central axis 13. In addition, an eyepiece may be further disposed at the position of the first image capturing element 121 and the second image capturing element 122 to adjust the magnification of the magnification of the objective lens module 20 .
In addition to the above-described embodiment in which the triangular aperture is used as the spectral lens 30, as shown in FIG. 2, the first light-emitting surface 32a and the second light-emitting surface 33a of the beam splitting lens 30a respectively have a plurality of The first light-emitting surface 32a and the second light-emitting surface 33a are periodically arranged in a direction away from the central axis 13 with the central axis 13 respectively, and the first light-emitting surfaces 32a are parallel to each other. The two light-emitting surfaces 33a are also parallel to each other, thereby forming a symmetrical structure such as a saw-tooth shape, and the first light-emitting surfaces 32a and the second light-emitting surfaces 33a are also symmetric about the central axis 13 in this embodiment. The normal directions of the first light-emitting surface 32a and the second light-emitting surfaces 33a are far from the central axis 13.
Please refer to FIG. 3 again, wherein the magnifying objective lens module 20, the beam splitting lens 30 and the concentrating mirror module 40 are respectively connected with a first displacement unit 61, a second displacement unit 62 and a third displacement unit. 63. The distance between the magnifying objective lens module 20 and the observation object 11 , the distance between the spectroscopic lens 30 and the magnifying objective lens module 20 , and the concentrating mirror module 40 and the spectroscopic lens 30 are respectively controlled. The distance between them. Thereby, the purpose of focusing is achieved, and the different distances are adjusted according to the magnifications of the magnifying objective lens module 20, the spectroscopic lens 30, and the condensing mirror module 40 after the individual replacement, to obtain an appropriate focal length, and to perform a clear inspection.
In a preferred embodiment of the present invention, the distance between the object 11 and the magnifying objective lens module 20 is set to be 2.2 cm, and the distance between the magnifying objective lens module 20 and the spectroscopic lens 30 is 7.5 cm. The distance from the lens 30 to the concentrating mirror module 40 is 2.7 cm, and the distance from the concentrating mirror module 40 to the image capturing module 12 is 27.9 cm. The magnification of the objective lens module 20 is 1.9 cm, and the magnification is 10X; the angle between the first light-emitting surface 31 and the second light-emitting surface 32 of the beam splitting lens 30 and the receiving surface 31 is 3 degrees; the concentrating mirror module 40 is a lenticular lens and has a focal length of 20 cm. The stereoscopic image of the observed object 11 can be obtained by the image capturing module 12 by the above optical setting method and specification.
In summary, the present invention has the following features:
First, the first light and the second light corresponding to the left and right eyes are respectively obtained and focused by the combination of the splitting lens and the condensing mirror module, thereby reducing the setting of the optical lens group, thereby reducing the manufacturing cost of the microscope system.
Second, the mirror group has a simple structure, reduces the complexity of the optical alignment, and effectively reduces the distortion problem.
3. The mirror group can be replaced to adjust the magnification, and the first displacement unit, the second displacement unit and the third displacement unit are adjusted to corresponding positions to obtain an appropriate focal length and display a clear image.

11‧‧‧ Observations

12‧‧‧Image capture module

121‧‧‧First image taking component

122‧‧‧Second image taking component

13‧‧‧ center axis

14‧‧‧Parallel light

20‧‧・Magnifying objective lens module

30‧‧‧Splitting lens

31‧‧‧ Receiving surface

32‧‧‧The first glazing

33‧‧‧Second glazing

40‧‧‧Condenser module

51‧‧‧First light

52‧‧‧second light

Claims (7)

A stereoscopic microscope system for acquiring a stereoscopic image of an observation object and amplifying it, and imaging the same on an image capturing module, the image capturing module comprising a first image capturing component and a second image capturing component. The stereo microscope system is disposed between the observation object and the image capturing module, and includes:
An enlarged objective lens module defines a center of the magnifying objective lens module extending toward the observation object and the image capturing module as a central axis, the observation object is located on the central axis, and the magnifying objective lens module obtains the observation object a light image is amplified and outputted by a parallel light on a side of the magnifying objective lens module away from the object;
a beam splitting lens disposed between the magnifying objective lens module and the image capturing module, the beam splitting lens having a receiving surface for receiving the parallel light, and at least one first light emitting surface and at least a second light for respectively outputting light The light emitting surface, the at least one first light emitting surface and the at least one second light emitting surface are symmetrically disposed on the central axis, and the angle between the at least one first light emitting surface and the at least one second light emitting surface and the central axis are respectively smaller than After the spectroscopic lens receives the parallel light, a first light and a second light are respectively output from the at least one first light emitting surface and the at least one second light emitting surface, and the first light and the second light are mutually And a concentrating mirror module disposed between the spectroscopic lens and the image capturing module, the center of the concentrating mirror module is disposed on the central axis, and the concentrating mirror module receives the first light and the second light And focusing, the first light and the second light are respectively focused on the first image capturing element and the second image capturing element. The stereoscopic microscope system of claim 1, wherein the first light-emitting surface and the second light-emitting surface of the light-splitting lens respectively have a plurality of, and the first light-emitting surface and the second light-emitting surface respectively The central axis is periodically arranged away from the central axis, and the first light emitting surfaces are parallel to each other, and the second light emitting surfaces are also parallel to each other. The stereoscopic microscope system of claim 2, wherein the normal directions of the first light-emitting surface and the second light-emitting surfaces are far from the central axis. The stereoscopic microscope system of claim 1, wherein a normal direction of the first light-emitting surface and the second light-emitting surface are away from the central axis. The stereoscopic microscope system of claim 1, further comprising a first displacement unit connected to the magnifying objective lens module for controlling a distance between the magnifying objective lens module and the observation object. The stereoscopic microscope system of claim 1, further comprising a second displacement unit connected to the spectroscopic lens for controlling a distance between the spectroscopic lens and the magnifying objective lens module. The stereoscopic microscope system of claim 1, further comprising a third displacement unit connected to the concentrating mirror module for controlling a distance between the concentrating mirror module and the beam splitting lens.