High-precision ellipsoidal mirror focus adjusting device

Abstract

The utility model discloses a high-precision ellipsoidal mirror focus adjusting device which comprises an adjusting assembly, and the adjusting assembly comprises a base frame, a front-back adjusting seat, an installation groove, a left-right adjusting seat and an arc-shaped toothed plate. By rotating the front-back adjusting screw, the left-right adjusting screw and the angle adjusting shaft, multi-dimensional adjustment of the ellipsoidal mirror is achieved, the position and the angle of the ellipsoidal mirror can be flexibly adjusted according to specific requirements through the multi-dimensional accurate adjusting mode, the performance of an optical system is optimized, and the optical system can be adjusted more accurately. The strict requirements of high-precision optical experiments or production and manufacturing on the focus position can be met, and the focus adjusting precision is remarkably improved; through the multiple limiting structures such as the multiple limiting nuts and the multiple limiting rings, after adjustment is completed, displacement of all the adjusting components can be effectively prevented, it is ensured that the ellipsoidal mirror is stably kept at the adjusted position, stability of the focus position in the operation process of the optical system is guaranteed, and optical performance fluctuation caused by shaking or deviation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical equipment technical field, concretely is a high accuracy ellipsoidal mirror focal point adjusting device. BACKGROUND

[0002] In the field of optical equipment, ellipsoidal mirrors are widely used in many optical systems. Common projectors, microscopes, and professional astronomical telescopes all have ellipsoidal mirrors. Ellipsoidal mirrors can focus light and form images. The accuracy of the focal point position directly affects the performance of the optical system. If the focal point position is off, the image will be blurred, and the light will not be concentrated, which will greatly reduce the performance of the optical system.

[0003] The existing ellipsoidal mirror focal point adjusting device can only perform rough position adjustment and can only adjust in a single dimension, which cannot meet the needs of high-precision optical experiments or production and manufacturing, and severely limits the performance optimization of the optical system. In addition, the existing ellipsoidal mirror focal point adjusting device lacks effective limiting and fixing structures after adjustment, resulting in poor stability and inability to meet the needs of modern optical technology development. Therefore, a high-precision ellipsoidal mirror focal point adjusting device is proposed. SUMMARY

[0004] The utility model aims at providing a kind of high accuracy ellipsoidal mirror focal point adjusting device to solve one of the problems raised in the above background technique.

[0005] The utility model is implemented by the following technical solutions: a high-precision ellipsoidal mirror focal point adjusting device includes an adjusting assembly, the adjusting assembly includes a base frame, front and rear adjusting seats, mounting grooves, left and right adjusting seats, support arms, angle adjusting seats, shafts, rotating holes, angle adjusting shafts, adjusting gears, and arc-shaped tooth plates.

[0006] The inner side wall of the base frame is slidably connected to the front and rear adjusting seats. The upper surface of the front and rear adjusting seats is provided with mounting grooves. The inner side wall of the mounting grooves is slidably connected to the left and right adjusting seats. The upper surface of the left and right adjusting seats is fixedly connected to the support arms at the front and rear centers. The upper part of the side near the two support arms is rotatably connected to the angle adjusting seat. The front and rear surfaces of the angle adjusting seat are fixedly connected to the shafts at the lower center. The upper center of the side near the two support arms is provided with rotating holes. The outer side wall of the shaft is rotatably connected to the inner side wall of the rotating hole. The lower part of the side near the two support arms is penetrated by the angle adjusting shaft. The outer side wall of the angle adjusting shaft is fixedly connected to the adjusting gear at the middle. The lower surface of the angle adjusting seat is provided with an arc-shaped tooth plate. The outer side wall of the adjusting gear is meshingly connected to the outer side wall of the arc-shaped tooth plate.

[0007] As a further preferred of the technical solution: the upper surface of the angle adjusting base is fixedly connected with a spherical mirror mounting seat, a plurality of limiting screw holes are formed in the middle of the outer side wall of the spherical mirror mounting seat, and the inner side wall of the plurality of limiting screw holes is threadedly connected with a limiting screw.

[0008] As a further preferred of the technical solution: the front surface of the base frame is centrally penetrated by a front-back adjusting screw rod, the front surface of the front-back adjusting base is centrally provided with a front-back adjusting screw hole in the lower part, the inner side wall of the front-back adjusting screw hole is threadedly connected with the outer side wall of the front-back adjusting screw rod, the front-back adjusting base is centrally penetrated by a left-right adjusting screw rod on one side of the upper part, the left-right adjusting base is centrally provided with a left-right adjusting screw hole on one side, and the outer side wall of the left-right adjusting screw rod is threadedly connected with the inner side wall of the left-right adjusting screw hole.

[0009] As a further preferred of the technical solution: the outer side wall of the two rotating shafts is threadedly connected with an angle limiting screw nut on the side away from each other, and the side close to each other of the two angle limiting screw nuts is respectively connected to the side away from each other of the two supporting arms close to the outer side of the rotating shaft.

[0010] As a further preferred of the technical solution: the outer side wall of the front-back adjusting screw rod is threadedly connected with a front-back limiting screw nut close to the front and rear of the front-back adjusting base, and the outer side wall of the left-right adjusting screw rod is threadedly connected with a left-right limiting screw nut close to the two sides of the left-right adjusting base.

[0011] As a further preferred of the technical solution: the outer side wall of the front-back adjusting screw rod is fixedly connected with a first limiting ring close to the front and rear of the base frame, the side close to each other of the two first limiting rings is respectively rotatably connected to the front surface and the rear surface of the base frame close to the outer side of the front-back adjusting screw rod, the outer side wall of the left-right adjusting screw rod is fixedly connected with a second limiting ring close to the two sides of the front-back adjusting base, the side close to each other of the two second limiting rings is respectively rotatably connected to the two sides of the front-back adjusting base close to the outer side of the left-right adjusting screw rod, and the outer side wall of the angle adjusting shaft is fixedly connected with a third limiting ring on the front and rear, and the side close to each other of the two third limiting rings is respectively rotatably connected to the side away from each other of the two supporting arms close to the outer side of the angle adjusting shaft.

[0012] As a further preferred of the technical solution: one end of the front-back adjusting screw rod and the left-right adjusting screw rod is fixedly connected with a plane adjusting knob, and one end of the angle adjusting shaft is fixedly connected with an angle adjusting knob.

[0013] As a further preferred technical solution of the present application: the inner side wall of the base frame is provided with a first limiting groove in the middle of both sides, the middle of both sides of the front and rear adjusting seat is fixedly connected with a first limiting strip, the outer side wall of the first limiting strip is slidingly connected to the inner side wall of the first limiting groove, the middle of the inner front wall and the inner rear wall of the mounting groove is provided with a second limiting groove, the middle of the front surface and the rear surface of the left and right adjusting seats is fixedly connected with a second limiting strip, and the outer side wall of the second limiting strip is slidingly connected to the inner side wall of the second limiting groove.

[0014] The utility model discloses the advantages are:

[0015] 1, the utility model discloses the design of front and rear adjusting screw rod, left and right adjusting screw rod and angle adjusting shaft, cooperation screw connection and limiting structure have realized the translation adjustment of ellipsoidal mirror in front and back, left and right direction and angle adjustment, this multidimensional accurate adjustment mode, not only can according to specific demand flexible adjustment ellipsoidal mirror's position and angle, optimize optical system performance, can also satisfy high-precision optical experiment or production manufacturing focus point position's strict requirement, compared with traditional device that can only roughly adjust, the precision of focus point adjustment has been improved significantly;

[0016] 2, the utility model discloses through multiple limiting nuts and multiple limiting rings and a variety of limiting structures, after adjusting, can effectively prevent each adjusting component from displacement, ensure that ellipsoidal mirror stably keeps in the position after adjusting, guarantee the stability of focus point position in the optical system operation process, reduce the optical performance fluctuation due to shaking or deviation. ACCURACY

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, without creative labor, other drawings can also be obtained according to these drawings.

[0018] Figure 1 For the perspective structure diagram of the utility model;

[0019] Figure 2 For another perspective structure diagram of the utility model;

[0020] Figure 3 For the base frame and front and rear adjusting seat structure diagram of the utility model;

[0021] Figure 4 For the angle adjusting seat and spherical mirror mounting seat structure diagram of the utility model.

[0022] In the figure: 1, adjusting assembly; 11, base frame; 12, front and rear adjusting seat; 13, mounting groove; 14, left and right adjusting seat; 15, support arm; 16, angle adjusting seat; 17, rotating shaft; 18, rotating hole; 19, angle adjusting shaft; 20, adjusting gear; 21, arc-shaped tooth plate; 22, spherical mirror mounting seat; 23, limiting screw hole; 24, limiting screw; 25, front and rear adjusting screw; 26, front and rear adjusting screw hole; 27, left and right adjusting screw; 28, left and right adjusting screw hole; 29, angle limiting nut; 30, front and rear limiting nut; 31, left and right limiting nut; 32, first limiting ring; 33, second limiting ring; 34, third limiting ring; 35, flat adjusting knob; 36, angle adjusting knob; 37, first limiting groove; 38, first limiting strip; 39, second limiting groove; 40, second limiting strip. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] EMBODIMENT

[0025] Please refer to Figures 1-4 The utility model provides a kind of technical solutions: a high-precision ellipsoidal mirror focal point adjusting device, including adjusting assembly 1, adjusting assembly 1 includes base frame 11, front and rear adjusting seat 12, mounting groove 13, left and right adjusting seat 14, support arm 15, angle adjusting seat 16, rotating shaft 17, rotating hole 18, angle adjusting shaft 19, adjusting gear 20 and arc-shaped tooth plate 21;

[0026] The inner side wall of the base frame 11 is slidably connected with a front and rear adjusting seat 12, the upper surface of the front and rear adjusting seat 12 is provided with a mounting groove 13, the inner side wall of the mounting groove 13 is slidably connected with a left and right adjusting seat 14, the upper surface of the left and right adjusting seat 14 is fixedly connected with a support arm 15 at the front and rear center, the outer side wall of the two support arms 15 is rotatably connected with an angle adjusting seat 16 on the side close to the upper part, the front surface and the rear surface of the angle adjusting seat 16 are fixedly connected with a rotating shaft 17 at the lower center, the outer side wall of the two rotating shafts 17 is rotatably connected with a rotating hole 18 in the inner side wall, the side close to the lower part of the two support arms 15 is penetrated by an angle adjusting shaft 19, the outer side wall of the angle adjusting shaft 19 is fixedly connected with an adjusting gear 20 at the middle part, the lower surface of the angle adjusting seat 16 is provided with an arc-shaped tooth plate 21 at the middle part, the outer side wall of the adjusting gear 20 is meshingly connected with the outer side wall of the arc-shaped tooth plate 21, the angle adjusting seat 16 is driven to rotate by rotating the angle adjusting shaft 19 to adjust the angle.

[0027] In this embodiment, specifically: the upper surface of the angle adjusting seat 16 is fixedly connected with a spherical mirror mounting seat 22, a plurality of limiting screw holes 23 are formed in the outer side wall of the spherical mirror mounting seat 22, the inner side wall of the plurality of limiting screw holes 23 is threadedly connected with a limiting screw 24, the ellipsoidal mirror installed on the spherical mirror mounting seat 22 is clamped and fixed by tightening the plurality of limiting screws 24.

[0028] In this embodiment, specifically: the front surface of the base frame 11 is penetrated by a front and rear adjusting screw 25, the front surface of the front and rear adjusting seat 12 is provided with a front and rear adjusting screw hole 26 at the lower center, the inner side wall of the front and rear adjusting screw hole 26 is threadedly connected with the outer side wall of the front and rear adjusting screw 25, the upper center of one side of the front and rear adjusting seat 12 is penetrated by a left and right adjusting screw 27, the center of one side of the left and right adjusting seat 14 is provided with a left and right adjusting screw hole 28, the outer side wall of the left and right adjusting screw 27 is threadedly connected with the inner side wall of the left and right adjusting screw hole 28, the front and rear adjusting seat 12 is driven to move forward and backward by rotating the front and rear adjusting screw 25, the left and right adjusting seat 14 is driven to move left and right by rotating the left and right adjusting screw 27.

[0029] In this embodiment, specifically: the outer side wall of the two rotating shafts 17 is threadedly connected with an angle limiting nut 29 on the side away from each other, the side close to the outer side of the two support arms 15 away from each other of the two angle limiting nuts 29 is respectively connected, the two angle limiting nuts 29 are clamped on the support arms 15 by tightening the two angle limiting nuts 29, thereby limiting the rotating shaft 17 and the angle adjusting seat 16.

[0030] In the embodiment, specifically: the outer side wall of the front and rear adjusting screw 25 is close to the front and rear of the front and rear adjusting seat 12, and is threadedly connected with a front and rear limiting nut 30; the outer side wall of the left and right adjusting screw 27 is close to the two sides of the left and right adjusting seat 14, and is threadedly connected with a left and right limiting nut 31; by rotating the front and rear limiting nut 30 and the left and right limiting nut 31, the positions of the front and rear adjusting seat 12 and the left and right adjusting seat 14 are respectively limited and fixed.

[0031] In the embodiment, specifically: the outer side wall of the front and rear adjusting screw 25 is close to the front and rear of the base frame 11, and is fixedly connected with a first limiting ring 32; the two first limiting rings 32 are respectively rotatably connected to the front surface and the rear surface of the base frame 11 close to the outer side of the front and rear adjusting screw 25; the outer side wall of the left and right adjusting screw 27 is close to the two sides of the front and rear adjusting seat 12, and is fixedly connected with a second limiting ring 33; the two second limiting rings 33 are respectively rotatably connected to the two sides of the front and rear adjusting seat 12 close to the outer side of the left and right adjusting screw 27; the outer side wall of the angle adjusting shaft 19 is fixedly connected with a third limiting ring 34; the two third limiting rings 34 are respectively rotatably connected to the two sides of the two support arms 15 close to the outer side of the angle adjusting shaft 19; the first limiting ring 32, the second limiting ring 33 and the third limiting ring 34 limit the front and rear adjusting screw 25, the left and right adjusting screw 27 and the angle adjusting shaft 19 respectively, so as to prevent the front and rear adjusting screw 25, the left and right adjusting screw 27 and the angle adjusting shaft 19 from moving axially, increase the stability of rotation, and further improve the adjustment accuracy.

[0032] In the embodiment, specifically: one end of the front and rear adjusting screw 25 and the left and right adjusting screw 27 is fixedly connected with a plane adjusting knob 35; one end of the angle adjusting shaft 19 is fixedly connected with an angle adjusting knob 36; the plane adjusting knob 35 facilitates the rotation of the front and rear adjusting screw 25 and the left and right adjusting screw 27; and the angle adjusting knob 36 facilitates the rotation of the angle adjusting shaft 19.

[0033] In this embodiment, specifically: the inner side wall of the base frame 11 is provided with a first limiting groove 37 in the middle of both sides, the front and rear adjusting seat 12 is fixedly connected with a first limiting strip 38 in the middle of both sides, the outer side wall of the first limiting strip 38 is slidingly connected to the inner side wall of the first limiting groove 37, the inner front wall and the inner rear wall of the mounting groove 13 are provided with a second limiting groove 39 in the middle, the front surface and the rear surface of the left and right adjusting seat 14 are fixedly connected with a second limiting strip 40 in the middle, the outer side wall of the second limiting strip 40 is slidingly connected to the inner side wall of the second limiting groove 39, the first limiting strip 38 on the front and rear adjusting seat 12 is slid in the first limiting groove 37, so as to limit the first limiting strip 38, thereby increasing the stability of the movement of the front and rear adjusting seat 12, the second limiting strip 40 on the left and right adjusting seat 14 is slid in the second limiting groove 39, so as to limit the second limiting strip 40, thereby increasing the stability of the movement of the left and right adjusting seat 14.

[0034] The working principle or structural principle is that when in use, the ellipsoidal mirror is placed on the spherical mirror mounting seat 22, the ellipsoidal mirror is fixed by screwing the rotary limiting screw 24 inward, so that displacement of the ellipsoidal mirror during adjustment is prevented; the front and rear adjusting screw 25 is rotated by rotating the plane adjusting knob 35, the front and rear adjusting screw hole 26 is threadedly connected with the front and rear adjusting screw 25, the front and rear adjusting seat 12 is slidably connected with the first limiting groove 37 of the base frame 11 through the first limiting strip 38, so that the movement direction of the front and rear adjusting seat 12 is limited, therefore, the front and rear adjusting seat 12 moves forward and backward along the inner side wall of the base frame 11, and the ellipsoidal mirror mounted on the front and rear adjusting seat 12 is adjusted in position; the left and right adjusting screw 27 is rotated by rotating the plane adjusting knob 35, the left and right adjusting screw hole 28 is threadedly connected with the left and right adjusting screw 27, the left and right adjusting seat 14 is slidably connected with the second limiting groove 39 of the mounting groove 13 through the second limiting strip 40, so that the left and right adjusting seat 14 can slide left and right in the mounting groove 13, and the ellipsoidal mirror is adjusted in position left and right; the angle adjusting shaft 19 is rotated by rotating the angle adjusting knob 36, the adjusting gear 20 is rotated, the angle adjusting seat 16 is rotated on the supporting arm 15 around the rotating shaft 17, and the ellipsoidal mirror is adjusted in angle; after adjustment is completed, firstly, the two angle limiting nuts 29 are tightened, the rotating shaft 17 is limited by the close contact between the angle limiting nuts 29 and the supporting arm 15, and the angle adjusting seat 16 is limited and fixed; then, the two front and rear limiting nuts 30 are rotated to move to the front and rear adjusting seat 12, the two front and rear limiting nuts 30 are in close contact with the front and rear adjusting seat 12, and the position of the front and rear adjusting seat 12 is limited and fixed; then, the two left and right limiting nuts 31 are rotated, the two left and right limiting nuts 31 are in close contact with the left and right adjusting seat 14, and the position of the left and right adjusting seat 14 is limited and fixed, the stability of the adjusting components after adjustment is ensured, shaking or deviation is avoided, and the adjustment accuracy is ensured.

[0035] The above merely describes preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-precision ellipsoidal mirror focal point adjustment device, characterized by, Including adjusting assembly (1), the adjusting assembly (1) includes base frame (11), front and back adjusting seat (12), installation groove (13), left and right adjusting seat (14), support arm (15), angle adjusting seat (16), pivot (17), rotating hole (18), angle adjusting shaft (19), adjusting gear (20) and arc toothed plate (21); The inner side wall of the base frame (11) is slidably connected with the front and back adjusting seat (12), the upper surface of the front and back adjusting seat (12) is provided with the installation groove (13), the inner side wall of the installation groove (13) is slidably connected with the left and right adjusting seat (14), the upper surface of the left and right adjusting seat (14) is fixedly connected with the support arm (15) at the front and rear center, the proximal side upper part of the two support arms (15) is rotatably connected with the angle adjusting seat (16), the front surface and the rear surface of the angle adjusting seat (16) are fixedly connected with the pivot (17) at the lower center, the proximal side upper center of the two support arms (15) is provided with the rotating hole (18), the outer side wall of the pivot (17) is rotatably connected with the inner side wall of the rotating hole (18), the proximal side lower part of the two support arms (15) penetrates the angle adjusting shaft (19), the outer side wall of the angle adjusting shaft (19) is fixedly connected with the adjusting gear (20) at the middle part, the lower surface of the angle adjusting seat (16) is provided with the arc toothed plate (21) at the middle part, and the outer side wall of the adjusting gear (20) is meshingly connected with the outer side wall of the arc toothed plate (21).

2. The high-precision ellipsoidal mirror focal point adjusting device according to claim 1, characterized in that, The upper surface of the angle adjusting seat (16) is fixedly connected with the spherical mirror mounting seat (22), a plurality of limiting screw holes (23) are formed in the outer side wall of the spherical mirror mounting seat (22) around the outer wall, and the inner side wall of the plurality of limiting screw holes (23) is threadedly connected with a limiting screw (24).

3. The high-precision ellipsoidal mirror focal point adjusting device according to claim 1, characterized in that, The front surface center of the base frame (11) penetrates the front and back adjusting screw rod (25), the front surface lower center of the front and back adjusting seat (12) is provided with the front and back adjusting screw hole (26), the inner side wall of the front and back adjusting screw hole (26) is threadedly connected with the outer side wall of the front and back adjusting screw rod (25), and the proximal side upper center of the front and back adjusting seat (12) penetrates the left and right adjusting screw rod (27). The side center of the left and right adjusting seat (14) is provided with a left and right adjusting screw hole (28), and the outer side wall of the left and right adjusting screw rod (27) is threadedly connected with the inner side wall of the left and right adjusting screw hole (28).

4. The high-precision ellipsoidal mirror focal point adjustment device according to claim 1, characterized in that, The outer side wall of the two pivots (17) is threadedly connected with an angle limiting screw nut (29) on the side away from each other, and the proximal side of the two angle limiting screw nuts (29) is respectively connected to the side away from each other of the two support arms (15) close to the outer side of the pivot (17).

5. The high-precision ellipsoidal mirror focal point adjustment device according to claim 3, characterized in that, The outer side wall of the front and back adjusting screw rod (25) is threadedly connected with a front and back limiting screw nut (30) close to the front and rear parts of the front and back adjusting seat (12), and the outer side wall of the left and right adjusting screw rod (27) is threadedly connected with a left and right limiting screw nut (31) close to the two sides of the left and right adjusting seat (14).

6. The high-precision ellipsoidal mirror focal point adjustment device according to claim 3, characterized in that, The outer side wall of the front and rear adjusting screw (25) is fixedly connected with a first limiting ring (32) near the front and rear of the base frame (11), the side of the two first limiting rings (32) close to each other is respectively rotatably connected to the front surface and the rear surface of the base frame (11) close to the outer side of the front and rear adjusting screw (25), the outer side wall of the left and right adjusting screw (27) is fixedly connected with a second limiting ring (33) near the two sides of the front and rear adjusting seat (12), the side of the two second limiting rings (33) close to each other is respectively rotatably connected to the two sides of the front and rear adjusting seat (12) close to the outer side of the left and right adjusting screw (27), the outer side wall of the angle adjusting shaft (19) is fixedly connected with a third limiting ring (34) near the front and rear, and the side of the two third limiting rings (34) close to each other is respectively rotatably connected to the side of the two support arms (15) far away from each other close to the outer side of the angle adjusting shaft (19).

7. The high-precision ellipsoidal mirror focal point adjustment device according to claim 3, characterized in that, One end of the front and rear adjusting screw (25) and the left and right adjusting screw (27) is fixedly connected with a plane adjusting knob (35), and one end of the angle adjusting shaft (19) is fixedly connected with an angle adjusting knob (36).

8. The high-precision ellipsoidal mirror focal point adjustment device according to claim 1, characterized in that, The inner side wall of the base frame (11) is provided with a first limiting groove (37) in the middle of the two sides, the two sides of the front and rear adjusting seat (12) are fixedly connected with a first limiting strip (38), the outer side wall of the first limiting strip (38) is slidably connected to the inner side wall of the first limiting groove (37), the inner front wall and the inner rear wall of the mounting groove (13) are provided with a second limiting groove (39) in the middle, and the front surface and the rear surface of the left and right adjusting seat (14) are fixedly connected with a second limiting strip (40). The outer side wall of the second limiting strip (40) is slidably connected to the inner side wall of the second limiting groove (39).

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