CN109491073B

CN109491073B - Optical filter

Info

Publication number: CN109491073B
Application number: CN201910074500.2A
Authority: CN
Inventors: 程春丽; 樊雪花; 胡琴
Original assignee: Shenzhen Jiexun Photoelectric Co ltd
Current assignee: Shenzhen Jiexun photoelectric Co.,Ltd.
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2021-06-15
Anticipated expiration: 2039-01-25
Also published as: CN109491073A

Abstract

The invention relates to the technical field of optical equipment, in particular to an optical filter, which comprises a supporting mechanism, a box body, a light emitting mechanism, a first covering mechanism, a driving mechanism, a second covering mechanism and a reflecting mechanism, wherein the light emitting mechanism is arranged on the box body; the sliding block can be moved along the matching groove, and the light-emitting pipe can be stopped when being moved to the light ray with the required wavelength, so that the light ray with the required wavelength can be emitted, and the light-emitting mode of the filter is more diversified; the fixed plate can drive the shading films on two sides to move in the moving process, and the shading films can block other light rays, so that only one light ray is emitted, and the light emitting effect is ensured; rotatable actuating mechanism drives the pinion rack displacement, and the grating board moves along the bottom plate to make the light that first lens got into shine on the light reflection strip of grating board other positions, thereby guarantee that light reflection's light reflection strip is in the newest state, guarantee the reflection effect.

Description

Optical filter

Technical Field

The invention relates to the technical field of optical equipment, in particular to an optical filter.

Background

An optical filter is a device for wavelength selection, which can select a desired wavelength from a plurality of wavelengths, and light other than the wavelength is rejected; it can be used for wavelength selection, noise filtering of optical amplifiers, gain equalization, optical multiplexing/demultiplexing.

The existing optical filter can reflect a plurality of light rays under the reflection action of the grating plate, and the emitted light rays are only one type and can not be selected as required; and the reflecting part of the grating plate is fixed, and after long-time use, the physicochemical properties of the reflecting strips at the reflecting part can be changed, thereby influencing the reflecting effect. In view of this, the present invention provides an optical filter having the following features:

(1) according to the optical filter, the liquid drainage mesh is arranged at the bottom end of the drill rod, the sliding block can be moved along the matching groove, and the optical filter can stop when the light outlet pipe moves to the light ray with the required wavelength, so that the light ray with the required wavelength can be emitted, and the light outlet mode of the filter is more diversified;

(2) according to the optical filter, the fixed plate can drive the shading films on two sides to move in the moving process, and the shading films can block other light rays, so that only one light ray is emitted, and the light emitting effect is ensured;

(3) according to the optical filter, the rotary driving mechanism drives the toothed plate to displace, and the grating plate moves along the bottom plate, so that light rays entering the first lens irradiate the light reflecting strips at other positions on the grating plate, the light reflecting strips of the reflected light rays are ensured to be in the latest state, and the reflecting effect is ensured.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an optical filter, which can move a sliding block along a matching groove and stop when a light-emitting tube moves to a light ray with required wavelength, so that the light ray with the required wavelength can be emitted, and the light-emitting mode of the filter is more various; the fixed plate can drive the shading films on two sides to move in the moving process, and the shading films can block other light rays, so that only one light ray is emitted, and the light emitting effect is ensured; rotatable actuating mechanism drives the pinion rack displacement, and the grating board moves along the bottom plate to make the light that first lens got into shine on the light reflection strip of grating board other positions, thereby guarantee that light reflection's light reflection strip is in the newest state, guarantee the reflection effect.

The technical scheme adopted by the invention for solving the technical problems is as follows: an optical filter comprises a supporting mechanism, a box body, a light emitting mechanism, a first covering mechanism, a driving mechanism, a second covering mechanism and a reflecting mechanism; the box body is fixed inside the supporting mechanism and used for protecting each optical device; the bottom layer in the box body is provided with the reflecting mechanism, and the reflecting mechanism is used for reflecting light rays; the light emitting mechanism is arranged at the corner of the top surface of the box body and used for guiding out light; the first covering mechanism and the second covering mechanism are respectively arranged on two sides of the light emitting mechanism, the first covering mechanism and the second covering mechanism have the same structure, the displacement directions of the first covering mechanism and the second covering mechanism are opposite, and the first covering mechanism and the second covering mechanism are used for shielding light; the driving mechanism is connected with the reflecting mechanism in a meshed mode and used for driving the reflecting mechanism to move.

Specifically, the supporting mechanism comprises a supporting seat and a rubber pad, the inner wall of the supporting seat is connected with the rubber pad in a gluing mode, the supporting seat is embedded into the box body, and the box body is connected with the rubber pad in a gluing mode.

Specifically, a first lens and a second lens are symmetrically arranged at the corners of the top of the interior of the box body, and a light inlet pipe is arranged at the corner of the surface of the box body, which is opposite to the first lens.

Specifically, reflection mechanism includes bottom plate, grating board and pinion rack, the bottom plate is located the inside bottom surface of box, the surperficial sliding connection of bottom plate the grating board, the surface equidistance of grating board distributes and has isometric reflection of light strip, the cross-section of reflection of light strip is half circular, the grating board deviates from the side of first lens is equipped with perpendicularly the pinion rack, the length of pinion rack with the length of grating board is the same.

Specifically, actuating mechanism includes rotary column, connecting rod, first gear, second gear and third gear, the meshing of third gear is connected the pinion rack, the meshing of third gear is connected the second gear, the perpendicular meshing of second gear is connected first gear, the back of first gear is connected perpendicularly the connecting rod, the connecting rod run through in the box, the tip of connecting rod is equipped with the rotary column, the rotary column is located the outside of box.

Specifically, light-emitting mechanism includes box body, play fluorescent tube, slider and fixed plate, the box body is located the top surface corner of box body, the outer wall distribution of box body has the spacing hole of a plurality of, open on the surface of box body has the cooperation groove, the inside sliding connection of box body the slider, the length of box body with the triple of slider length, the slider passes through the dop block and connects spacing hole, the top surface of slider is equipped with perpendicularly go out the fluorescent tube, the inside of slider be equipped with go out the relative through-hole structure of fluorescent tube, the inside through-hole structure of slider with the second lens sets up relatively, the light-emitting tube run through in the cooperation groove, the outer wall that goes out the fluorescent tube is equipped with the rectangle the fixed plate.

Specifically, first cover mechanism, second cover mechanism locate respectively the both ends of cooperation groove, first cover mechanism includes receiver, reel, torsional spring and photomask, the end connection of photomask the fixed plate, the photomask twine in the outer wall of reel, the reel rotates to be located the inside of receiver, the reel with the junction of receiver inner wall is equipped with the torsional spring.

Specifically, a moving groove is formed in the bottom plate, and the grating plate is connected with the moving groove in a sliding manner; the bottom surface of the bottom plate is provided with a rotating wheel.

The invention has the beneficial effects that:

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of an optical filter according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the light emitting mechanism shown in FIG. 2;

FIG. 4 is a schematic view of a connection structure between the light emitting mechanism and the first covering mechanism shown in FIG. 3;

FIG. 5 is a schematic view of the first cover mechanism connection shown in FIG. 4;

fig. 6 is a schematic view of a connection structure between the bottom plate and the grating plate shown in fig. 1.

In the figure: 1. the light-emitting device comprises a supporting mechanism, 11, a supporting seat, 12, a rubber pad, 2, a box body, 21, a first lens, 22, a second lens, 23, a light inlet tube, 3, a light-emitting mechanism, 31, a box body, 311, a limiting hole, 312, a matching groove, 32, a light outlet tube, 33, a sliding block, 331, a clamping head, 34, a fixing plate, 4, a first covering mechanism, 41, a containing box, 42, a winding drum, 43, a torsion spring, 44, a shading film, 5, a driving mechanism, 51, a rotating column, 52, a connecting rod, 53, a first gear, 54, a second gear, 55, a third gear, 6, a second covering mechanism, 7, a reflecting mechanism, 71, a bottom plate, 711, a reflecting strip, 72, a grating plate, 73 and a toothed plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, the optical filter according to the present invention includes a supporting mechanism 1, a housing 2, a light emitting mechanism 3, a first covering mechanism 4, a driving mechanism 5, a second covering mechanism 6, and a reflecting mechanism 7; the box body 2 is fixed inside the supporting mechanism 1, and the box body 2 is used for protecting each optical device; the reflecting mechanism 7 is arranged on the bottom layer in the box body 2, and the reflecting mechanism 7 is used for reflecting light rays; the light emitting mechanism 3 is arranged at the corner of the top surface of the box body 2, and the light emitting mechanism 3 is used for guiding out light; the first covering mechanism 4 and the second covering mechanism 6 are respectively arranged on two sides of the light emitting mechanism 3, the first covering mechanism 4 and the second covering mechanism 6 have the same structure, the displacement directions of the first covering mechanism 4 and the second covering mechanism 6 are opposite, and the first covering mechanism 4 and the second covering mechanism 6 are used for shielding light; the driving mechanism 5 is engaged with the reflecting mechanism 7, and the driving mechanism 5 is used for driving the reflecting mechanism 7 to move.

Specifically, as shown in fig. 1, the supporting mechanism 1 includes a supporting seat 11 and a rubber pad 12, the inner wall of the supporting seat 11 is connected to the rubber pad 12 by gluing, the supporting seat 11 is embedded in the box body 2, and the box body 2 is connected to the rubber pad 12 by gluing; vibration can be reduced by the rubber pad 12, and vibration and offset of the optical device can be avoided.

Specifically, as shown in fig. 1, a first lens 21 and a second lens 22 are symmetrically disposed at the top corner of the interior of the box body 2, and a light inlet pipe 23 is disposed at the corner of the surface of the box body 2 opposite to the first lens 21; the light can be filtered and reflected through the lens.

Specifically, as shown in fig. 1, the reflection mechanism 7 includes a bottom plate 71, a grating plate 72 and a tooth plate 73, the bottom plate 71 is disposed on the inner bottom surface of the box body 2, the surface of the bottom plate 71 is slidably connected to the grating plate 72, equal-length reflection bars 711 are equidistantly distributed on the surface of the grating plate 72, the cross section of the reflection bars 711 is semicircular, the tooth plate 73 is vertically disposed on the side surface of the grating plate 72 away from the first lens 21, and the length of the tooth plate 73 is the same as that of the grating plate 72; the reflection of the light can be achieved by the light-reflecting strips 711 of the grating plate 72.

Specifically, as shown in fig. 2, the driving mechanism 5 includes a rotary column 51, a connecting rod 52, a first gear 53, a second gear 54, and a third gear 55, the third gear 55 is engaged with the toothed plate 73, the third gear 55 is engaged with the second gear 54, the second gear 54 is vertically engaged with the first gear 53, the back surface of the first gear 53 is vertically connected with the connecting rod 52, the connecting rod 52 penetrates through the box body 2, the end of the connecting rod 52 is provided with the rotary column 51, and the rotary column 51 is arranged outside the box body 2; the driving mechanism 5 can drive the grating plate 72 to move, so as to change the reflection position, so that the reflection position can be freely changed, and the latest reflection bars 711 can be ensured to be located at the working position.

Specifically, as shown in fig. 3 and 4, the light emitting mechanism 3 includes a box 31, a light emitting tube 32, a sliding block 33 and a fixing plate 34, the box body 31 is arranged at the corner of the top surface of the box body 31, a plurality of limiting holes 311 are distributed on the outer wall of the box body 31, the surface of the box body 31 is provided with a matching groove 312, the inside of the box body 31 is connected with the sliding block 33 in a sliding way, the length of the box body 31 is three times of the length of the sliding block 33, the sliding block 33 is clamped and connected with the limiting hole 311 through a clamping head 331, the top surface of the sliding block 33 is vertically provided with the light outlet pipe 32, the inside of the sliding block 33 is provided with a through hole structure opposite to the light outlet pipe 32, the through hole structure inside the slider 33 is arranged opposite to the second lens 22, the light outlet pipe 32 penetrates through the matching groove 312, and the rectangular fixing plate 34 is arranged on the outer wall of the light outlet pipe 32; the light-emitting mechanism 3 can emit light, and can freely move out of the position of the light pipe 32, and can emit light with different wavelengths.

Specifically, as shown in fig. 5, the first covering mechanism 4 and the second covering mechanism 6 are respectively disposed at two ends of the engagement groove 312, the first covering mechanism 4 includes a storage box 41, a reel 42, a torsion spring 43, and a light shielding film 44, an end of the light shielding film 44 is connected to the fixed plate 34, the light shielding film 44 is wound around an outer wall of the reel 42, the reel 42 is rotatably disposed inside the storage box 41, and the torsion spring 43 is disposed at a connection point between the reel 42 and an inner wall of the storage box 41; the light shielding film 44 can move along with the light emitting mechanism 3, so that light can be only discharged through the light emitting tube 32, and light at other positions cannot be emitted.

Specifically, as shown in fig. 6, a moving groove 711 is formed in the bottom plate 71, and the grating plate 72 is slidably connected to the moving groove 711; the bottom surface of the bottom plate 72 is provided with a rotating wheel 721; the moving speed of the grating plate 72 can be increased by the roller 721, so that the movement is smoother.

The sliding block 33 can be moved along the matching groove 312, and the light-emitting pipe 32 can be stopped when being moved to the light ray with the required wavelength, so that the light ray with the required wavelength can be emitted, and the light-emitting modes of the filter are more diversified; the fixed plate 34 drives the shading films 44 on the two sides to move in the moving process, and the shading films 44 can block other light rays, so that only one light ray is emitted, and the light emitting effect is ensured; the rotatable driving mechanism 5 drives the toothed plate 73 to displace, and the grating plate 72 moves along the bottom plate 71, so that the light rays entering the first lens 21 irradiate the light reflecting strips 711 at the other positions on the grating plate 72, thereby ensuring that the light reflecting strips 711 of the reflected light rays are in the latest state and ensuring the reflection effect. The method specifically comprises the following steps:

(1) external light irradiates the first lens 21 through the light inlet tube 23, then irradiates the light reflecting strips 711 of the grating plate 72, then is reflected to the second lens 22, and a plurality of light rays are reflected and scattered after being filtered by the lenses and the grating plate 72; the light is finally emitted through the box body 31, the sliding block 33 and the light-emitting tube 32;

(2) the slider 33 can be moved along the matching groove 312 to drive the fixing plate 34 to move, and the shading film 44 on the side departing from the moving direction of the slider 33 moves outwards, so that the shading film 44 leaves the winding drum 42 and drives the winding drum 42 to rotate, the torsion spring 43 compresses, and the shading film 44 with the same moving direction as the slider 33 is wound on the winding drum 42 under the driving of the torsion spring 43; when the light-emitting tube 32 moves to the position of the light with the required wavelength, the light-emitting mode can be stopped, and the light-shielding film 44 can block the rest light rays so that only one light ray is emitted;

(3) after the grating plate 72 is used for a period of time, the rotating column 51 can be rotated and the connecting rod 52 drives the first gear 53 to rotate, so that the second gear 54 and the third gear 55 are driven to rotate, the third gear 55 drives the toothed plate 73 to displace, and the grating plate 72 moves along the bottom plate 71, so that light rays entering the first lens 21 irradiate the light reflecting strips 711 at other positions on the grating plate 72, thereby ensuring that the light reflecting strips 711 of the reflected light rays are in the latest state and ensuring the reflection effect.

The invention can move the sliding block 33 along the matching groove 312, and can stop when the light-emitting tube 32 moves to the light ray with the required wavelength, so that the light ray with the required wavelength can be emitted, and the light-emitting mode of the filter is more various; the fixed plate 34 drives the shading films 44 on the two sides to move in the moving process, and the shading films 44 can block other light rays, so that only one light ray is emitted, and the light emitting effect is ensured; the rotatable driving mechanism 5 drives the toothed plate 73 to displace, and the grating plate 72 moves along the bottom plate 71, so that the light rays entering the first lens 21 irradiate the light reflecting strips 711 at the other positions on the grating plate 72, thereby ensuring that the light reflecting strips 711 of the reflected light rays are in the latest state and ensuring the reflection effect.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An optical filter, comprising: the device comprises a supporting mechanism (1), a box body (2), a light emitting mechanism (3), a first covering mechanism (4), a driving mechanism (5), a second covering mechanism (6) and a reflecting mechanism (7); the box body (2) is fixed inside the supporting mechanism (1), and the box body (2) is used for protecting each optical device; the bottom layer in the box body (2) is provided with the reflecting mechanism (7), and the reflecting mechanism (7) is used for reflecting light; the light emitting mechanism (3) is arranged at the corner of the top surface of the box body (2), and the light emitting mechanism (3) is used for guiding out light; the first covering mechanism (4) and the second covering mechanism (6) are respectively arranged on two sides of the light emitting mechanism (3), the first covering mechanism (4) and the second covering mechanism (6) are identical in structure, the displacement directions of the first covering mechanism (4) and the second covering mechanism (6) are opposite, and the first covering mechanism (4) and the second covering mechanism (6) are used for shielding light; the driving mechanism (5) is connected with the reflecting mechanism (7) in a meshing manner, and the driving mechanism (5) is used for driving the reflecting mechanism (7) to move; the supporting mechanism (1) comprises a supporting seat (11) and a rubber pad (12), the inner wall of the supporting seat (11) is connected with the rubber pad (12) in a gluing mode, the supporting seat (11) is embedded into the box body (2), and the box body (2) is connected with the rubber pad (12) in a gluing mode; a first lens (21) and a second lens (22) are symmetrically arranged at the corner of the top of the interior of the box body (2), and a light inlet pipe (23) is arranged at the corner of the surface of the box body (2) opposite to the first lens (21); reflecting mechanism (7) include bottom plate (71), grating board (72) and pinion rack (73), bottom plate (71) are located the inside bottom surface of box (2), the surperficial sliding connection of bottom plate (71) grating board (72), the surface equidistance of grating board (72) distributes and has isometric anti-light strip (711), the cross-section of anti-light strip (711) is the semicircle form, grating board (72) deviate from the side of first lens (21) is equipped with perpendicularly pinion rack (73), the length of pinion rack (73) with the length of grating board (72) is the same.

2. An optical filter according to claim 1, wherein: the driving mechanism (5) comprises a rotary column (51), a connecting rod (52), a first gear (53), a second gear (54) and a third gear (55), the third gear (55) is meshed with and connected with the toothed plate (73), the third gear (55) is meshed with and connected with the second gear (54), the second gear (54) is perpendicularly meshed and connected with the first gear (53), the back face of the first gear (53) is perpendicularly connected with the connecting rod (52), the connecting rod (52) penetrates through the box body (2), the end part of the connecting rod (52) is provided with the rotary column (51), and the rotary column (51) is arranged outside the box body (2).

3. An optical filter according to claim 1, wherein: the light emitting mechanism (3) comprises a box body (31), a light emitting pipe (32), a sliding block (33) and a fixing plate (34), wherein the box body (31) is arranged at the corner of the top surface of the box body (31), a plurality of limiting holes (311) are distributed on the outer wall of the box body (31), a matching groove (312) is formed in the surface of the box body (31), the sliding block (33) is connected with the inside of the box body (31) in a sliding mode, the length of the box body (31) is three times that of the length of the sliding block (33), the sliding block (33) is connected with the limiting holes (311) through a clamping head (331) in a clamping mode, the light emitting pipe (32) is vertically arranged on the top surface of the sliding block (33), a through hole structure opposite to the light emitting pipe (32) is arranged inside the sliding block (33), and the second lens (22) are oppositely arranged, the light outlet pipe (32) penetrates through the matching groove (312), and the rectangular fixing plate (34) is arranged on the outer wall of the light outlet pipe (32).

4. An optical filter according to claim 3, wherein: the first covering mechanism (4) and the second covering mechanism (6) are arranged at two ends of the matching groove (312) respectively, the first covering mechanism (4) comprises a storage box (41), a winding drum (42), a torsion spring (43) and a shading film (44), the end portion of the shading film (44) is connected with the fixing plate (34), the shading film (44) is wound on the outer wall of the winding drum (42), the winding drum (42) is rotatably arranged in the storage box (41), and the torsion spring (43) is arranged at the connecting position of the winding drum (42) and the inner wall of the storage box (41).

5. An optical filter according to claim 1, wherein: a moving groove (711) is formed in the bottom plate (71), and the grating plate (72) is connected with the moving groove (711) in a sliding manner; the bottom surface of the bottom plate (71) is provided with a rotating wheel (721).