Inverted microscope multicolor fluorescent lighting device

Abstract

The utility model belongs to the technical field of fluorescence microscopes, and particularly relates to an inverted microscope multicolor fluorescence lighting device, which comprises a shell arranged on a microscope, a lighting cavity is arranged in the shell, a lamp chamber component and a color filtering component are arranged in the lighting cavity, the lamp chamber component comprises a plurality of lamp chambers fixedly arranged on the inner wall of the shell, and the color filtering component is arranged in the lamp chamber. The illumination directions of the lamp chambers are different, the color filtering assembly comprises a plurality of color filtering blocks fixedly installed on the rotating disc, the number of the color filtering blocks is equal to the number of the lamp chambers, a plurality of photoelectric switches are arranged at the positions, corresponding to the color filtering blocks, of the inner wall of the shell, and the corresponding photoelectric switches are shielded, so that the color filtering blocks are arranged in the lamp chambers. When a light path needs to be converted, the turntable is rotated through the gear, so that the light filtering blocks required by observation correspond to the corresponding lamp chambers, and the photoelectric switches corresponding to the lamp chambers can be shielded by the rotation of the turntable, so that the required lamp chambers are lightened, and the light path conversion is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fluorescence microscopes, in particular to a multi-color fluorescence lighting device for an inverted microscope. Background Art

[0002] When light shines on certain substances, these substances will stimulate the phenomenon of light with a longer wavelength than the wavelength of the irradiated light, which is called fluorescence. The irradiated light is called excitation light, and the excited light is called fluorescence. A fluorescence microscope is a microscope that uses this principle to illuminate the observed object with light of certain wavelengths as a light source to stimulate fluorescence for observation. An inverted fluorescence microscope is a type of fluorescence microscope, which is suitable for microscopic observation and research of tissue culture, cell in vitro culture, plankton, environmental protection, food testing, and fluid sediments in the fields of biology and medicine. In the fluorescent lighting device of the inverted microscope in the prior art, the lamp room corresponds to the color filter block one by one and moves in a straight line at the same time, which causes the device to occupy a large space; the existing lighting device has the same irradiation direction of the lamp room, and the heat dissipation does not meet the requirements of the LED lamp, so the power of the LED lamp cannot be increased; and the existing lighting device is troublesome to switch the light path and is expensive. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, the utility model provides a multi-color fluorescence illumination device for an inverted microscope.

[0004] An inverted microscope multicolor fluorescent lighting device comprises a shell mounted on the microscope, wherein a lamp chamber assembly and a color filter assembly are arranged in the shell, wherein the lamp chamber assembly comprises a plurality of lamp chambers fixedly mounted on the inner wall of the shell, wherein the irradiation directions of the plurality of lamp chambers are all different, wherein the color filter assembly comprises a plurality of color filter blocks fixedly mounted on a rotating disk, wherein the number of the color filter blocks is equal to the number of the lamp chambers, wherein a plurality of photoelectric switches are arranged on the inner wall of the shell at positions corresponding to the color filter blocks, and by shielding the corresponding photoelectric switches, the LED lights on the lamp chambers irradiate the corresponding color filter blocks.

[0005] Furthermore, the turntable is mounted on a support via a bearing, a first gear is fixedly mounted on the turntable via bolts, the first gear is transmission-connected to a third gear via a second gear, the third gear is connected to an adjustment knob via a rotating shaft, and the adjustment knob is mounted on the outside of the end cover.

[0006] Furthermore, the lamp house assembly includes a first lamp house and a third lamp house with opposite irradiation directions, and a second lamp house which forms a certain angle with the irradiation direction of the first lamp house.

[0007] Furthermore, the color filter assembly includes a first color filter block, a second color filter block and a third color filter block, and the turntable is also provided with a bright field tube. The first color filter block, the second color filter block, the third color filter block and the bright field tube are installed on the turntable at equal distances in the circumferential direction with the pillar as the center.

[0008] Furthermore, a light shielding sheet is installed on the first color filter block, and the plurality of photoelectric switch pillars are distributed circumferentially around the center of a circle, and the plurality of photoelectric switches correspond to the first color filter block, the second color filter block and the third color filter block respectively.

[0009] Furthermore, the housing is provided with a brightness knob for adjusting the illumination brightness of the lamp chamber assembly.

[0010] Furthermore, a gear bracket for limiting the second gear and the third gear is fixedly installed on the inner side of the end cover by bolts.

[0011] Furthermore, an end cover is provided at the open end of the shell, and a light outlet is provided on both the shell and the end cover.

[0012] Furthermore, a turntable positioning frame is provided in the lighting cavity, and a positioning groove matching with the turntable positioning frame is provided on the edge of the turntable.

[0013] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is: in the utility model, when it is necessary to switch the light path, the turntable is rotated to make the filter block required for observation correspond to the corresponding lamp room, and the photoelectric switch corresponding to the lamp room can be blocked by rotating the turntable, so that the required lamp room is lit, the light path conversion is convenient, the cost is low, the lamp room assembly is fixedly mounted on the inner wall of the shell, the number of lamp rooms and the number of filter blocks are the same, and in the process of switching the light path, it is only necessary to adjust the position of the filter block by rotating the adjustment knob, thereby reducing the volume of the lighting device, and the lamp room is mounted on different orientations of the shell, so that the lamp room irradiates in different directions, which is convenient for heat dissipation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded schematic diagram of a multi-color fluorescent illumination device for an inverted microscope of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of a multi-color fluorescence illumination device for an inverted microscope according to the utility model.

[0016] Figure 3 This is a schematic diagram of the bright field mode in the utility model.

[0017] Figure 4 This is a schematic diagram of the fluorescence mode 1 in the utility model,

[0018] Figure 5 This is a schematic diagram of the fluorescence mode 2 in the present utility model.

[0019] Figure 6 It is a schematic diagram of fluorescence mode 3 in the present invention.

[0020] In the figure, 1, adjustment knob, 2, end cover, 3, gear bracket, 4, first gear, 5, second gear, 6, third gear, 7, turntable, 8, bearing, 9, first color filter block, 10, second color filter block, 11, third color filter block, 12, shading sheet, 13, first photoelectric switch, 14, second photoelectric switch, 15, third photoelectric switch, 16, bright field tube, 17, first light chamber, 18, second light chamber, 19, third light chamber, 20, brightness knob, 21, power switch, 22, power input port, 23, LED lamp bead driver board, 25, positioning slot, 26, turntable positioning frame, 27, shell, 28, light outlet, 29, pillar. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0022] according to Figure 1-6 As shown, an inverted microscope multicolor fluorescent lighting device includes a shell 27 installed on the microscope, a lamp room assembly and a color filter assembly are arranged in the shell 27, the lamp room assembly includes a plurality of lamp rooms fixedly mounted on the inner wall of the shell 27, the irradiation directions of the plurality of lamp rooms are all different, the color filter assembly includes a plurality of color filter blocks fixedly mounted on a turntable 7, the number of the color filter blocks is equal to the number of the lamp rooms, a plurality of photoelectric switches are arranged on the inner wall of the shell 27 at positions corresponding to the color filter blocks, and by shielding the corresponding photoelectric switches, the LED lights on the lamp rooms illuminate the corresponding color filter blocks.

[0023] In the above specific embodiment, when it is necessary to switch the light path, the turntable 7 is rotated to make the filter block required for observation correspond to the corresponding lamp room, and by rotating the turntable 7, the photoelectric switch corresponding to the lamp room can be blocked, so that the required lamp room is lit. The light path conversion is convenient and the cost is low. The lamp room assembly is fixedly mounted on the inner wall of the shell 27. The number of lamp rooms is the same as the number of filter blocks. In the process of switching the light path, it is only necessary to adjust the position of the filter block by rotating the adjustment knob 1, thereby reducing the size of the lighting device. The lamp room is installed at different positions of the shell 27, so that the lamp room irradiates in different directions, which is convenient for heat dissipation of the device.

[0024] The turntable 7 is mounted on the support 29 via a bearing 8, a first gear 4 is fixedly mounted on the turntable 7 via bolts, the first gear 4 is transmission-connected to the third gear 6 via a second gear 5, the third gear 6 is connected to the adjustment knob 1 via a rotating shaft, and the adjustment knob 1 is mounted on the outside of the end cover 2. By rotating the adjustment knob 1, the turntable 7 can be rotated, thereby switching the optical path of the machine model, which is convenient to switch and has low cost.

[0025] The lamp chamber assembly includes a first lamp chamber 17 and a third lamp chamber 19 with opposite irradiation directions, and a second lamp chamber 18 with a certain angle to the irradiation direction of the first lamp chamber 17. Compared with the traditional parallel installation of lamp chambers, this installation position of the lamp chambers reduces the volume of the device.

[0026] The color filter assembly includes a first color filter block 9, a second color filter block 10 and a third color filter block 11. The turntable 7 is also provided with a bright field tube 16. The first color filter block 9, the second color filter block 10, the third color filter block 11 and the bright field tube 16 are equidistantly installed on the turntable 7 with the pillar 29 as the center, so that the lighting device has three fluorescence modes and one bright field mode, thereby increasing the applicability of the device.

[0027] A shading sheet 12 is installed on the first color filter block 9, and a plurality of the photoelectric switch pillars 29 are distributed circumferentially with the center of a circle. The plurality of photoelectric switches correspond to the first color filter block 9, the second color filter block 10 and the third color filter block 11 respectively, and the shading sheet 12 is driven to rotate by rotating the turntable 7. When the shading sheet 12 blocks the photoelectric switch, the LED lamp beads on the corresponding lamp chamber are lit, thereby irradiating the filter block.

[0028] In specific applications, this device has 1 set of bright field and 3 sets of fluorescence modes, such as Figure 3 The bright field mode is shown. The power supply is connected to the power switch 21 and the LED lamp bead driving board 23 from the power input port 22. After the LED lamp bead driving board 23 works, the first photoelectric switch 13, the second first photoelectric switch 13, and the third first photoelectric switch 13 start to work. Figure 3 The middle light shielding sheet 12 is installed on the first color filter block 9. When the photoelectric switch is not blocked, it is in the non-trigger mode, the LED light is off, and the bright field tube 16 is at the light outlet 28, and the microscope bright field observation can be used. Figure 4 In the position shown, the first photoelectric switch 13 is blocked by the light shielding sheet 12, triggering the corresponding LED light on the third lamp chamber 19 to light up, and the LED light is emitted into the first color filter block 9, and the light is reflected downward through the excitation sheet and dichroic mirror in the first color filter block 9 to illuminate the sample through the microscope objective lens. The sample emits fluorescence after being irradiated, and passes through the dichroic mirror and emission sheet in the first color filter block 9 to enter the eyepiece for observation. Rotate the adjustment knob 1 to the position shown in the figure. Figure 5The second fluorescent mode is shown, the second photoelectric switch 14 is blocked by the light shielding sheet, triggering the corresponding LED light of the first lamp chamber 17 to light up, and rotating the adjustment knob 1 to Figure 6 As shown, the third photoelectric switch 15 is blocked by the light shielding sheet 12, triggering the corresponding LED light of the second lamp chamber 18 to light up.

[0029] The housing 27 is provided with a brightness knob 20 for adjusting the illumination brightness of the lamp chamber assembly, and the user can adjust the illumination brightness as needed.

[0030] A gear bracket 3 for limiting the second gear 5 and the third gear 6 is fixedly installed on the inner side of the end cover 2 by bolts to ensure the meshing among the first gear 4, the second gear 5 and the third gear 6.

[0031] An end cover 2 is disposed at the open end of the housing 27 , and a light outlet 28 is disposed on both the housing 27 and the end cover 2 .

[0032] A turntable positioning frame 26 is provided in the lighting cavity, and a positioning groove 25 matching with the turntable positioning frame 26 is provided at the edge of the turntable 7. When the turntable 7 rotates to a designated position, the turntable 7 is positioned by the roller on the positioning frame and the positioning groove 25.

[0033] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An inverted microscope multicolor fluorescence illumination device, comprising a housing (27) mounted on a microscope, characterized in that: The housing (27) is provided with a lamp chamber assembly and a color filter assembly. The lamp chamber assembly includes a plurality of lamp chambers fixedly mounted on the inner wall of the housing (27). The irradiation directions of the plurality of lamp chambers are all different. The color filter assembly includes a plurality of color filter blocks fixedly mounted on the turntable (7). The number of the color filter blocks is equal to the number of the lamp chambers. A plurality of photoelectric switches are provided on the inner wall of the housing (27) at positions corresponding to the color filter blocks. By shielding the corresponding photoelectric switches, the LED lights on the lamp chambers irradiate the corresponding color filter blocks.

2. The multicolor fluorescence illumination device for an inverted microscope according to claim 1, characterized in that: The turntable (7) is mounted on a support (29) via a bearing (8); a first gear (4) is fixedly mounted on the turntable (7) via bolts; the first gear (4) is transmission-connected to a third gear (6) via a second gear (5); the third gear (6) is connected to an adjustment knob (1) via a rotating shaft; and the adjustment knob (1) is mounted on the outer side of the end cover (2).

3. The multi-color fluorescence illumination device for an inverted microscope according to claim 1, characterized in that: The lamp chamber assembly comprises a first lamp chamber (17) and a third lamp chamber (19) with opposite irradiation directions, and a second lamp chamber (18) which forms a certain angle with the irradiation direction of the first lamp chamber (17).

4. The multi-color fluorescence illumination device for an inverted microscope according to claim 3, characterized in that: The color filter assembly comprises a first color filter block (9), a second color filter block (10) and a third color filter block (11); the turntable (7) is also provided with a bright field tube (16); the first color filter block (9), the second color filter block (10), the third color filter block (11) and the bright field tube (16) are mounted on the turntable (7) at equal distances in the circumferential direction with the support column (29) as the center.

5. The multi-color fluorescence illumination device for an inverted microscope according to claim 4, characterized in that: A light shielding sheet (12) is installed on the first color filter block (9), a plurality of the photoelectric switch pillars (29) are distributed in a circumferential direction around the center of a circle, and the plurality of the photoelectric switches correspond to the first color filter block (9), the second color filter block (10) and the third color filter block (11), respectively.

6. The multi-color fluorescence illumination device for an inverted microscope according to claim 5, characterized in that: The housing (27) is provided with a brightness knob (20) for adjusting the illumination brightness of the lamp chamber assembly.

7. The multi-color fluorescence illumination device for an inverted microscope according to claim 6, characterized in that: A gear bracket (3) for limiting the position of the second gear (5) and the third gear (6) is fixedly mounted on the inner side of the end cover (2) by means of bolts.

8. The multi-color fluorescence illumination device for an inverted microscope according to claim 7, characterized in that: An end cover (2) is provided at the open end of the shell (27), and a light outlet (28) is provided on both the shell (27) and the end cover (2).

9. The multi-color fluorescence illumination device for an inverted microscope according to claim 8, characterized in that: A turntable positioning frame (26) is provided in the lighting cavity, and a positioning groove (25) matching with the turntable positioning frame (26) is provided on the edge of the turntable (7).

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