CN212060721U

CN212060721U - Near-infrared two-region stereomicroscope system

Info

Publication number: CN212060721U
Application number: CN202021194716.7U
Authority: CN
Inventors: 刘刚; 艾中凯; 晏宗飞
Original assignee: Shanghai Hengguang Zhiying Medical Technology Co ltd
Current assignee: Shanghai Hengguang Zhiying Medical Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2020-12-01
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a two district stereoscopic microsystems of near-infrared, including light shielding structure and install at the inside indium gallium arsenic refrigeration camera of light shielding structure, imaging lens one, 45 degrees speculum, long wave pass filter one, optical waveguide, displacement platform controller and displacement platform, be equipped with imaging lens one on indium gallium arsenic refrigeration camera's the camera lens X direction, imaging lens one's opposite side X direction is equipped with long wave pass filter one, and long wave pass filter one's opposite side X direction is equipped with 45 degrees speculums, the utility model discloses two district stereoscopic microsystems of near-infrared can enough realize stereoscopic imaging of stereoscopic microscope's real-time positive image, and it is darker because of its penetration depth again, can realize more deep stereoscopic imaging. The imaging effect of the living body imaging of the small animal is improved.

Description

Near-infrared two-region stereomicroscope system

Technical Field

The utility model relates to the technical field of optics, specifically a two district stereomicroscope systems of near-infrared.

Background

The stereomicroscope is a binocular microscope which is a visual instrument with an erect stereoscopic effect and can observe an object from different angles to cause stereoscopic sensation to two eyes. The observation body is not required to be processed and manufactured, and can be observed by being directly placed under the lens and being matched with illumination, and the observation body is upright and convenient to operate and dissect. Although the magnification of the stereomicroscope is inferior to that of a conventional microscope, the stereomicroscope has a long working distance, a large focal depth, and a large field diameter, and is convenient for observing the whole layer of an object to be detected, and therefore, a microscope more favorable for fluorescence imaging and real-time observation needs to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two district stereoscopic microscope systems of near-infrared to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a near-infrared two-region stereoscopic microscope system comprises a light shielding structure, an indium gallium arsenic refrigerating camera, an imaging lens I, a 45-degree reflector, a long-wave pass filter I, an optical waveguide, a displacement table controller and a displacement table, wherein the indium gallium arsenic refrigerating camera, the imaging lens I, the 45-degree reflector, the long-wave pass filter I, the zoom lens group and the displacement table are arranged in the light shielding structure, the imaging lens I is arranged in the X direction of a lens of the indium gallium arsenic refrigerating camera, the long-wave pass filter I is arranged in the X direction of the other side of the imaging lens I, the 45-degree reflector is arranged in the X direction of the other side of the long-wave pass filter I, the zoom lens group is arranged in the Y direction below the 45-degree reflector, a dichroic mirror is arranged in the Y direction below the zoom lens group, a long-wave pass filter II is arranged in the Y direction below the dichroic mirror, the imaging lens II is provided with the displacement table in, the displacement table controller is electrically connected with the displacement table.

As a further technical solution of the present invention: and the second long-wave pass filter transmits light above 800nm and has a transmittance higher than 95%, does not transmit light below 780nm and has an OD value higher than 4.

As a further technical solution of the present invention: the focal lengths of the first imaging lens and the second imaging lens are both 5mm to 200mm, and F is 1.2 to 4.

As a further technical solution of the present invention: the magnification of the zoom lens group is adjustable between 1.5 times and 5 times.

As a further technical solution of the present invention: the 45-degree reflector is a mechanically fixed non-adjustable silvered film reflector.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses two district stereoscopic microscope systems of near-infrared can enough realize stereoscopic microscope's real-time positive image third dimension formation of image, and it is darker because of its penetration depth, can realize deeper stereoscopic imaging again. The imaging effect of the living body imaging of the small animal is improved.

Drawings

Fig. 1 is a schematic diagram of the present patent.

In the figure: the device comprises an indium gallium arsenic refrigerating camera-1, an imaging lens I-2, a 45-degree reflector-3, a long-wave-pass filter I-4, a zoom lens group-5, a dichroic mirror-6, a long-wave-pass filter II-7, an imaging lens II-8, a collimating lens-9, an optical waveguide-10, a displacement table controller-11 and a displacement table-12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, embodiment 1 provides a near-infrared two-zone stereomicroscope system, which includes a light shielding structure, and an ingaas refrigeration camera 1, an imaging lens i 2, a 45-degree reflector 3, a long-wave pass filter i 4, an optical waveguide 10, a displacement stage controller 11 and a displacement stage 12 installed inside the light shielding structure, wherein the imaging lens i 2 is installed on the ingaas refrigeration camera 1 in the lens X direction, the long-wave pass filter i 4 is installed on the imaging lens i 2 in the X direction, the 45-degree reflector 3 is installed on the long-wave pass filter i 4 in the X direction, a zoom lens group 5 is installed on the 45-degree reflector 3 in the Y direction below, a dichroic mirror 6 is installed on the zoom lens group 5 in the Y direction, a long-wave pass filter ii 7 is installed on the dichroic mirror 6 in the Y direction below, an imaging lens ii 8 is installed on the long-wave pass filter ii 7 in the Y direction below, and a displacement stage 12 is installed on the imaging lens ii 8 in the Y direction below, the X direction of the dichroic mirror 6 is provided with a collimating lens 9, the other side X direction of the collimating lens 9 is provided with an optical waveguide 10, and a displacement stage controller 11 is electrically connected with a displacement stage 12.

The exciting light is output through the optical waveguide 10, the emitted light is converted into collimated light beams or laser beams with smaller divergence angles through the collimating lens 9, the collimated light beams or the laser beams are reflected through the dichroic mirror 6, the interference of non-exciting wave bands is inhibited through the long-wave pass filter II-7, and the laser beams are focused to the plane of the displacement table 12 through the imaging lens II-8. The subject is aligned with the excitation light by the adjustment of the direction of the stage XYZ by the stage controller 11.

The fluorescence generated by the excited object to be detected is collimated into parallel light beams by the imaging lens II-8, transmitted by the dichroic mirror 6, reflected by the zoom lens group 5 lens by the 45-degree reflector 3, filtered by the long-wave pass filter I4 to remove non-fluorescence interference, and focused to the focal plane of the InGaAs refrigeration camera 1 by the imaging lens I2 to complete the imaging process.

Example 2: on the basis of the embodiment 1, the light source adopted by the design is a single-wavelength laser light source which is transmitted by an optical fiber or an optical waveguide and ranges from 800nm to 1300nm, and the fluorescence wavelength range of the light source is between 950nm and 2000 nm. The collimator functions to collimate the laser light of the optical waveguide into a parallel beam or a laser beam of a small divergence angle. The dichroic mirror 6 is used for emitting exciting light and transmitting fluorescence, and can be adjusted in a rotating mode along an optical axis plane by taking the cube as a fixed seat. And the second long-wave pass filter 7 transmits at 800nm or more and has a transmittance higher than 95%, and does not transmit at 780nm or less and has an OD value higher than 4. The focal length of the imaging lens II 8 is any optional value between 5mm and 200mm, and F is any optional value between 1.2 and 4. The magnification of the zoom lens 5 group is adjustable between 1.5 and 5 times. The 45-degree reflector 3 is a mechanically fixed non-adjustable silvered film reflector. The long-wave pass filter 2 has a transmission band of more than 95% and can be selected at any upper and lower limits within the range of 900nm to 1700 nm. The focal length of the imaging lens 2 is any optional value between 5mm and 200mm, and F is any optional value between 1.2 and 4. The InGaAs camera 1 is a refrigeratable InGaAs near-infrared camera, and the camera is in an optimized detection range of 800nm to 1700 nm.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A near-infrared two-region stereomicroscope system comprises a shading structure, an indium gallium arsenic refrigeration camera (1), an imaging lens I (2), a 45-degree reflector (3), a long-wave pass filter I (4), an optical waveguide (10), a displacement table controller (11) and a displacement table (12) which are arranged inside the shading structure, and is characterized in that the imaging lens I (2) is arranged in the X direction of a lens of the indium gallium arsenic refrigeration camera (1), the long-wave pass filter I (4) is arranged in the X direction of the other side of the imaging lens I (2), the 45-degree reflector (3) is arranged in the X direction of the other side of the long-wave pass filter I (4), a zoom lens group (5) is arranged in the Y direction below the 45-degree reflector (3), a dichroic mirror (6) is arranged in the Y direction below the zoom lens group (5), and a long-wave pass filter II (7) is arranged in the Y direction below the dichroic mirror (6), an imaging lens II (8) is arranged below the long-wave pass filter II (7) in the Y direction, a displacement table (12) is arranged below the imaging lens II (8) in the Y direction, a collimating lens (9) is arranged in the X direction of the dichroic mirror (6), an optical waveguide (10) is arranged on the other side of the collimating lens (9) in the X direction, and a displacement table controller (11) is electrically connected with the displacement table (12).

2. The near-infrared two-region stereomicroscope system according to claim 1, wherein the second long-wave pass filter (7) transmits at a wavelength of 800nm or more and has a transmittance of 95% or more, and is opaque at 780nm or less and has an OD of 4 or more.

3. A near-infrared two-zone stereomicroscope system according to claim 2, wherein the focal lengths of the first imaging lens (2) and the second imaging lens (8) are both between 5mm and 200mm, and F is between 1.2 and 4.

4. A near-infrared two-zone stereomicroscope system according to claim 1, characterized in that the magnification of the variable focus lens group (5) is adjustable between 1.5 and 5.

5. A near-infrared two-zone stereoscopic microscopy system according to claim 1, wherein the 45 degree mirror (3) is a mechanically fixed non-adjustable silvered film mirror.