CN219065852U

CN219065852U - Spectrometer focal length calibrating device

Info

Publication number: CN219065852U
Application number: CN202223559306.XU
Authority: CN
Inventors: 张景辉
Original assignee: Yantai University
Current assignee: Yantai University
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-23
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a spectrometer focal length calibration device which comprises a box body, wherein a box cover is arranged at the top of the box body, a first lens and a second lens are arranged in the box body, clamping blocks are arranged at two ends of the first lens and the second lens, the clamping blocks above the first lens and the second lens are fixedly connected with a movable block, the movable block is penetrated by a threaded rod, one end of the threaded rod is provided with a bearing, the other end of the threaded rod penetrates through the side wall of the box body and is fixedly connected with a first gear, the first gear is connected with the side wall of the box body through the bearing, a rocker is arranged on the surface of the first gear, the first gear is connected with the second gear in a meshed manner, and the rocker is arranged on the surface of the second gear. The utility model has the advantages that: the focusing distance can be calibrated more accurately; the maintenance is convenient; the inside is convenient for heat dissipation.

Description

Spectrometer focal length calibrating device

Technical Field

The utility model relates to the technical field of spectrometers, in particular to a focal length calibration device of a spectrometer.

Background

In spectrometers, lenses are commonly used optical elements that function to concentrate, collimate or diverge light propagating in an optical path. If the lens is erroneously positioned, the imaging quality of the entire optical system is directly affected. Therefore, the mounting and positioning of the lens is very important. When the spectrometer is used for measurement, the focal length is usually required to be adjusted and calibrated, and the parts for fixing optical elements such as lenses have installation errors, so that in the actual assembly process, the focal length of the lenses needs to be adjusted for a long time, and meanwhile, a heat dissipation mechanism is lacked in the lens, so that the normal detection of the spectrometer is easily affected.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a spectrometer focal length calibration device.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a spectrum appearance focal length calibrating device, includes the box, the box top be equipped with the case lid, the box inside be equipped with first and second lens, first and second both ends of lens all be equipped with the grip block, first and second top of lens's grip block and movable block fixed connection, the movable block run through by the threaded rod, threaded rod one end be equipped with the bearing, the other end passes the box lateral wall, with a gear fixed connection, first gear pass through the bearing and be connected with the box lateral wall, first gear surface be equipped with rocker one, first gear and meshing be connected with gear two, second gear surface be equipped with rocker two.

As an improvement, the box cover is hinged with the box body, the top is provided with a vent, and the vent is provided with a dust screen.

As an improvement, the clamping blocks at the bottoms of the first lens and the second lens are fixedly connected with sliding blocks.

As an improvement, a fan is arranged at the bottom of the box body, and a filter screen plate is arranged at the outer side of the fan.

As an improvement, the radius of the first gear is larger than that of the second gear.

As an improvement, a grating is arranged between the first lens and the second lens.

As an improvement, the inner wall of the movable block, which is in contact with the threaded rod, is provided with threads which are engaged with the threads of the threaded rod.

Compared with the prior art, the utility model has the advantages that:

1. the first lens and the second lens are arranged in the box body and fixed through the clamping blocks, the top of each clamping block is fixedly connected with the movable block, each movable block is penetrated by the threaded rod, the inner wall of each movable block is meshed with the threaded rod, and when the threaded rod rotates, the movable blocks are displaced to adjust the positions of the first lens and the second lens.

2. The end part of the threaded rod is connected with a first gear, the first gear is connected with a second gear in a meshed manner, the radius of the second gear is smaller than that of the first gear, the positions of the first lens and the second lens can be quickly adjusted through the first gear, and the micro distance can be adjusted through the second gear, so that the focal length adjustment is more accurate.

3. The bottom of the box body is provided with the fan, the box cover is provided with the ventilation opening, air flow can be accelerated, heat dissipation is carried out inside the box body, and dust is prevented from entering through the dustproof filter screen.

Drawings

Fig. 1 is a schematic diagram of the internal structure of a focal length calibration device of a spectrometer according to the present utility model.

Fig. 2 is a schematic diagram of a gear of a focal length calibration device of a spectrometer according to the present utility model.

As shown in the figure: 1. a case; 2. a case cover; 3. a first lens; 4. a second lens; 5. a clamping block; 6. a movable block; 7. a threaded rod; 8. a first gear; 9. a rocker I; 10. a second gear; 11. a rocker II; 12. a sliding block; 13. a blower; 14. a screen plate; 15. and (5) a grating.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "top/bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model provides a spectrometer focal length calibrating device, includes box 1, as shown in fig. 1-2, box 1 top be equipped with case lid 2, box 1 inside be equipped with lens one 3 and lens two 4, lens one 3 and lens two 4 both ends all be equipped with grip block 5, grip block 5 and movable block 6 fixed connection of lens one 3 and lens two 4 top, movable block 6 run through by threaded rod 7, the inner wall of movable block 6 and threaded rod 7 contact be equipped with the screw thread, with threaded rod 7 screw thread engagement, when threaded rod 7 is rotatory, movable block 6 displacement adjusts the position of lens one 3 and lens two 4.

The utility model provides a novel optical lens, including box 1, gear and lens, 7 one end of threaded rod be equipped with the bearing, the other end passes box 1 lateral wall, with gear 8 fixed connection, gear 8 pass through bearing and box lateral wall connection, gear 8 surface be equipped with rocker one 9, gear 8 be connected with gear two 10 with the meshing, gear two 10 surface be equipped with rocker two 11, gear 8 radius be greater than gear two 10 radius, can adjust lens one 3 and lens two 4's position fast through gear 8, can adjust the micro distance through gear two 10, make the focus adjust more accurate.

The box cover 2 is hinged with the box body 1, a vent is formed in the top of the box cover, a dust screen is arranged at the vent, a fan 13 is arranged at the bottom of the box body 1, a screen plate 14 is arranged at the outer side of the fan 13, air flow can be accelerated, heat dissipation is conducted inside the box body 1, and dust is prevented from entering the box body through the dust screen and the screen plate 14.

The working principle of the utility model is as follows: through rotating rocker one 9, the rotary gear one 8 can adjust the position of lens one 3 and lens two 4 fast, through rotating rocker and 11, and rotary gear two 10 can be to little distance adjustment, makes the focal length adjust more accurate, dispel the heat to inside through fan 13, when overhauling inside, open case lid 2 can.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. The utility model provides a spectrometer focal length calibrating device, includes box (1), its characterized in that: the novel portable electronic device is characterized in that a box cover (2) is arranged at the top of the box body (1), a first lens (3) and a second lens (4) are arranged inside the box body (1), clamping blocks (5) are arranged at two ends of the first lens (3) and the second lens (4), the clamping blocks (5) above the first lens (3) and the second lens (4) are fixedly connected with the movable blocks (6), the movable blocks (6) are penetrated by threaded rods (7), bearings are arranged at one ends of the threaded rods (7), the other ends of the threaded rods penetrate through the side wall of the box body (1) and are fixedly connected with a first gear (8), the first gear (8) is connected with the side wall of the box body through the bearings, a first rocker (9) is arranged on the surface of the first gear (8), the first gear (8) is connected with a second gear (10) in a meshed mode, and the second rocker (11) is arranged on the surface of the second gear (10).

2. A spectrometer focal length calibration apparatus as claimed in claim 1, wherein: the box cover (2) is hinged with the box body (1), the top is provided with a vent, and the vent is provided with a dust screen.

3. A spectrometer focal length calibration apparatus as claimed in claim 1, wherein: the clamping blocks (5) at the bottoms of the first lens (3) and the second lens (4) are fixedly connected with sliding blocks (12).

4. A spectrometer focal length calibration apparatus as claimed in claim 1, wherein: the bottom of the box body (1) is provided with a fan (13), and the outer side of the fan (13) is provided with a filter screen plate (14).

5. A spectrometer focal length calibration apparatus as claimed in claim 1, wherein: the radius of the first gear (8) is larger than that of the second gear (10).

6. A spectrometer focal length calibration apparatus as claimed in claim 1, wherein: and a grating (15) is arranged between the first lens (3) and the second lens (4).

7. A spectrometer focal length calibration apparatus as claimed in claim 1, wherein: the inner wall of the movable block (6) contacted with the threaded rod (7) is provided with threads which are engaged with the threaded rod (7).