CN209879141U - Multi-path optical switching system and optical device - Google Patents

Abstract

The utility model relates to the technical field of optical path systems, and discloses a multi-path optical switching system and an optical device, wherein the multi-path optical switching system comprises a light reflector, an emergent optical fiber interface, a first incident optical fiber interface and a second incident optical fiber interface; the light reflector comprises a reflecting surface, the light reflector receives emergent light rays emitted by the emergent optical fiber interface and reflects the emergent light rays, the light reflector can rotate around an axis parallel to the emergent light rays, the first incident light rays and the second incident light rays all pass through the same convergence point, the convergence point is located on the reflecting surface, and the light reflector is an isosceles right-angle prism or a plane mirror. And the light reflector is rotated, emergent light rays emitted by the emergent optical fiber interface are reflected to different directions by the light reflector and can be received by the first incident optical fiber interface or the second incident optical fiber interface, and the switching of double-path light is realized. In the test, the multi-path optical switching system does not need to be debugged for many times, so that the debugging time is greatly reduced, and the consistency of the test in the same batch is better.

Description

Multi-path optical switching system and optical device

Technical Field

The utility model relates to an optical path system technical field, in particular to multichannel optical switching system and optical equipment.

Background

Generally, in an optical device, such as a spectrometer, one optical device can only perform single-channel connection of an optical path in one experiment, and when the optical path needs to be switched and multi-channel connection of the optical path needs to be performed, an instrument needs to be debugged again, which causes disadvantages of long test time and poor test efficiency, or a new optical device needs to be used to obtain a new optical path, which increases test cost.

In order to solve the above problems, improvements in an optical apparatus and an optical switching system thereof are urgently needed.

Disclosure of Invention

The utility model discloses to above-mentioned technical problem and propose, aim at provides a multichannel light switching system, the utility model discloses a light reflector among the multichannel light switching system can rotate, through the rotation of light reflector and with the emergent light reflection of directive plane of reflection to different directions to received by the fiber interface of different positions, thereby realize the switching of light path, need not many times to debug multichannel light switching system in the many times experiment, greatly reduced debug time, the uniformity of same batch experiment is more excellent.

Particularly, the utility model provides a multichannel optical switching system, include:

an emergent optical fiber interface capable of emitting emergent light;

the light reflector comprises a reflecting surface, the reflecting surface is arranged towards the emergent optical fiber interface, the light reflector receives emergent light and reflects the emergent light, and the light reflector can rotate around an axis parallel to the emergent light;

the first incident optical fiber interface is positioned on one side of the optical reflector on the axis and can receive the first incident light reflected by the optical reflector;

the second incident optical fiber interface is positioned on one side of the light reflector on the axis, which is different from the first incident optical fiber interface, and can receive second incident light reflected by the light reflector;

the emergent light emitted by the emergent optical fiber interface, the first incident light received by the first incident optical fiber interface and the second incident light received by the second incident optical fiber interface pass through the same convergence point, and the convergence point is positioned on the reflecting surface;

the light reflector is an isosceles right-angle prism, the prism comprises a first right-angle surface, a second right-angle surface and a reflecting surface, and emergent rays are perpendicular to the first right-angle surface; alternatively, the first and second electrodes may be,

the light reflecting mirror is a plane mirror.

Compared with the prior art, the utility model provides a multichannel light switching system, the emergent light that emergent fiber optic interface sent reachs the plane of reflection of light reflector, then takes place reflection or total reflection at the plane of reflection. The rotating reflecting surface is opposite to the first incident optical fiber interface, so that the first incident light reflected by the light reflector is received by the first incident optical fiber interface, and correspondingly, the rotating light reflector enables the reflecting surface to be opposite to the second incident optical fiber interface, so that the second incident light reflected by the light reflector is received by the second incident optical fiber interface.

The orientation of the reflecting surface of the light reflector can be changed by rotating the light reflector, so that the direction of the light reflected by the reflecting surface is changed, the reflected light can be received by different incident optical fiber interfaces, and the switching of the double-path light is realized.

Preferably, the convergence point is located at a center point of the reflecting surface, and the axis passes through the convergence point.

According to the preferred scheme, the light rays are reflected at the central point of the reflecting surface and then emitted, the loss of the light rays in the process of propagation is small, and the luminous flux of the multipath light switching system is large.

In addition, the multiplex optical switching system preferably further includes:

the base is used for supporting the light reflector, one surface of the base, facing the emergent optical fiber interface, is provided with an inclined surface, and the inclined surface can be attached to the reflecting surface of the light reflector;

the light blocking flange is positioned on the periphery of the base, and the convergence point deviates from the orthographic projection of the light blocking flange on a plane vertical to the axis;

the entrance side connecting piece is connected with the base and the emergent optical fiber interface, the entrance side connecting piece is clamped with the light blocking flange, and the base is matched with the light blocking flange and the entrance side connecting piece to fix the light reflecting mirror;

the entrance side connecting piece is connected with the base and the emergent optical fiber interface and is clamped with the light blocking flange;

the side opening of the entrance side connecting piece opposite to the reflecting surface extends away from the light reflecting mirror at the opening end to form a light blocking flange.

According to the preferred scheme, the light reflected by the reflecting surface can be corrected by arranging the light blocking flange, and disordered light is shielded or absorbed, so that light beams emitted from the light reflecting mirror are concentrated, and the light beams are favorably received by the optical fiber interface.

In addition, the light reflector is preferably connected to a motor, and the light reflector can be driven by the motor to rotate.

According to this preferred embodiment, the motor drives the light reflecting mirror to rotate, and the rotation is accurate and fast. The motor may be rotated clockwise or counterclockwise to effect switching of the optical path. Of course, the motor may also rotate along one rotation direction, according to different rotation angles, to realize the switching of the optical path.

Further, preferably, the motor and the base are connected by a coupling.

According to this preferred embodiment, the motor and the light reflector are flexibly connected, and the concentricity of the light reflector is not affected even if the rotation axis of the motor is not coaxial with the light reflector.

In addition, as preferred, the multi-path optical switching system further comprises a switch, the switch is in communication connection with the motor, and the switch is started to drive the motor to rotate; alternatively, the first and second electrodes may be,

the motor is in communication connection with the control device, and the motor can rotate under the control of the control device.

According to the preferred scheme, the switch can be used for manual motor driving, the control equipment can also be used for automatic motor driving, and two motor driving modes, namely manual and automatic, are provided for a user to select, so that the operation is flexible and convenient.

Preferably, the multiplex optical switching system further includes:

the light reflector is positioned in the shell, and the emergent optical fiber interface, the first incident optical fiber interface and the second incident optical fiber interface are positioned on the outer side of the shell and are communicated with the shell;

the shaft barrel assembly comprises a shaft barrel, a shaft sleeve and a bearing, wherein the shaft barrel, the shaft sleeve and the bearing are matched for use, the bearing is positioned between the shaft barrel and the shaft sleeve, an outer ring of the bearing is fixedly installed on the shell, an inner ring of the bearing is coaxially sleeved outside the shaft barrel, and the light reflector is fixedly connected with the shaft sleeve.

According to this preferred embodiment, the rotation of the bearing can minimize the frictional resistance when rotating the light reflector, and the concentricity of the rotation of the light reflector can be ensured.

Preferably, the multiplex optical switching system further includes:

and the gravity hammer is used for driving the light reflecting mirror to rotate under the action of gravity only until the gravity hammer is positioned below the light reflecting mirror, and the reflecting surface deviates from the light paths of the first incident optical fiber interface and the second incident optical fiber interface.

According to the preferable scheme, the gravity hammer is arranged, so that the light reflector rotates to the reflecting surface to deviate from the first incident optical fiber interface and the second incident optical fiber interface only under the action of the gravity hammer when no external force acts on the light reflector, and at the moment, the two optical channels are in a Dark state, so that a Dark spectrum is obtained.

Preferably, the multiplex optical switching system further includes:

the third incident optical fiber interface is positioned on one side of the light reflector on the axis, which is different from the first incident optical fiber interface and the second incident optical fiber interface, and can receive third incident light reflected by the light reflector;

the first incident optical fiber interface, the second incident optical fiber interface and the third incident optical fiber interface are arranged around an axis in a rotational symmetry manner.

According to the preferred embodiment, by providing the third incident optical fiber interface, the direction of the light reflected by the reflecting surface can be changed by changing the direction of the reflecting surface of the light reflector, thereby realizing switching of three paths of light. The first incident optical fiber interface, the second incident optical fiber interface and the third incident optical fiber interface are beneficial to reducing interference among different optical paths, and the procedure and the step of rotating the light reflector can be simplified.

The utility model also provides an optical device, include as in aforementioned arbitrary technical scheme multichannel light switching system.

Compared with the prior art, the utility model provides an optical equipment can realize the switching of multichannel light, improves optical equipment's functionality and suitability.

Drawings

Fig. 1 is a schematic structural diagram of a multi-path optical switching system according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of the interior of the multi-path optical switching system according to the first embodiment of the present invention (for convenience, a part of the housing is hidden in the figure);

fig. 3 is a schematic structural diagram illustrating a structure in which light emitted from an outgoing optical fiber interface is received by a first incident light according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram illustrating a structure in which light emitted from an outgoing optical fiber interface is received by a second incident light according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a base and three optical fiber interfaces according to a first embodiment of the present invention;

fig. 6 is an exploded schematic view (one) of the coupling, the base and the shaft sleeve assembly according to the first embodiment of the present invention;

fig. 7 is an exploded view (ii) of the coupling, the base and the shaft barrel assembly according to the first embodiment of the present invention;

FIG. 8 is a simplified schematic diagram of an optical apparatus in accordance with one embodiment of the present invention;

fig. 9 is a schematic structural view illustrating that light emitted from an outgoing optical fiber interface is received by a third incident light according to a second embodiment of the present invention;

fig. 10 is a schematic structural diagram (a) of the light emitted from the outgoing optical fiber interface in the third embodiment of the present invention being received by the first incident light;

fig. 11 is a schematic structural diagram (ii) illustrating that the light emitted from the outgoing optical fiber interface is received by the first incident light according to the third embodiment of the present invention.

Description of reference numerals:

1. a housing; 11. an outgoing optical fiber interface; 11a, emitting light; 12. a first incident optical fiber interface; 12a, a first incident ray; 13. a second incident optical fiber interface; 13a, a second incident ray; 14. a third incident optical fiber interface; 14a, a third incident ray; 2. a base; 21. a bevel; 3. a prism; 3a, a first right-angle surface; 3b, a second right-angle surface; 3c, a reflecting surface; 31. a plane mirror; 32. an auxiliary mirror; o, a convergence point; H. an axis; 4. a motor; 51. a side-entry connector; 51a light blocking flange; 52. a light blocking flange; 6. a coupling; 61. clamping falcon; 62. a tongue and groove; 63. a card slot; 64. a clamping block; 7. a shaft barrel assembly; 71. a shaft cylinder; 72. a shaft sleeve; 73. a bearing; 9. a gravity hammer; 10. a multi-path optical switching system; 100. an optical device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. The structures of the multiplex optical switching system and the optical device, etc. are schematically shown in simplified form in the drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The embodiment of the utility model provides a multichannel optical switching system 10, see fig. 1 and show, including casing 1, casing 1 is the cuboid form, is provided with emergent optical fiber interface 11 at one of them tip of casing 1, is provided with first incident optical fiber interface 12 and second incident optical fiber interface 13 respectively at two opposite faces of casing 1, and emergent optical fiber interface 11, first incident optical fiber interface 12 and second incident optical fiber interface 13 are located the casing 1 outside and are linked together with casing 1. When in use, the housing 1 is horizontal, the first incident optical fiber interface 12 and the second incident optical fiber interface 13 are disposed opposite to each other, and the optical paths of the two are perpendicular to the optical path of the emergent optical fiber interface 11.

Referring to fig. 2, a base 2 is disposed inside the light reflector, the base 2 has an inclined surface 21 facing the outgoing optical fiber interface 11, the inclined surface 21 forms an angle of 45 ° with a plane where the outgoing optical fiber interface 11 is located, a light reflector is disposed on the base 2, and the base 2 supports the light reflector.

The light reflector includes a reflecting surface 3c, the reflecting surface 3c is disposed toward the outgoing optical fiber interface 11, and the light reflector receives and reflects the outgoing light 11 a. In the present embodiment, as shown in fig. 3, the light reflecting mirror is an isosceles right prism 3, and includes a first right-angle surface 3a, a second right-angle surface 3b, and a reflecting surface 3c, the first right-angle surface 3a and the second right-angle surface 3b are surfaces formed as right angles, and the reflecting surface 3c is an inclined surface facing the right angle.

When the prism 3 is positioned on the base 2, the reflecting surface 3c of the prism 3 is attached to the inclined surface 21 of the base 2, the outgoing optical fiber interface 11 is positioned on the first right-angle surface 3a side of the prism 3, and the first right-angle surface 3a faces away from the outgoing optical fiber interface 11. During the propagation of the light, the outgoing light 11a from the outgoing optical fiber interface 11 is perpendicular to the first right-angle surface 3a and parallel to the second right-angle surface 3 b. According to the total reflection principle of light, referring to fig. 3, the outgoing light 11a emitted from the outgoing optical fiber interface 11 perpendicularly hits the first right-angle surface 3a, and then enters the prism 3 along the original direction, and then hits the reflecting surface 3c, and since the incident angle (45 °) is larger than the critical angle (42 °) of the light entering the air from the glass, the light is totally reflected on the reflecting surface 3c, and then exits from the prism 3 along the direction perpendicular to the second right-angle surface 3 b. The first incident optical fiber interface 12 and the second incident optical fiber interface 13 are respectively located on the side surface of the prism 3, the first incident optical fiber interface 12 can receive the first incident light 12a reflected by the prism 3, and the second incident optical fiber interface 13 can receive the second incident light 13a reflected by the prism 3.

The first incident light 12a received by the first incident optical fiber interface 12 and the second incident light 13a received by the second incident optical fiber interface 13 are in the same plane, the emergent light 11a emitted by the emergent optical fiber interface 11, the first incident light 12a received by the first incident optical fiber interface 12 and the second incident light 13a received by the second incident optical fiber interface 13 both pass through the same convergence point O, and the convergence point O is located on the reflecting surface 3 c.

In particular, the prism 3 is configured to be rotatable about an axis H which is perpendicular to the plane of the first incident ray 12a and the second incident ray 13a, i.e. perpendicular to the first rectilinear surface 3a, i.e. parallel to the outgoing ray 11 a. By rotating the prism 3, the direction of the reflecting surface 3c of the prism 3 is changed, and the direction of the light beam reflected by the reflecting surface 3c is changed. The axis H is perpendicular to the first right-angle surface 3a and parallel to the second right-angle surface 3b, and the direction of the emergent light 11a emitted by the emergent optical fiber interface 11 is the same as the direction of the axis H. With reference to the axis H, the first entrance fiber interface 12 is located on the side of the prism 3 on the axis H, and the second entrance fiber interface 13 is located on the side of the prism 3 on the axis H different from the first entrance fiber interface 12. When the prism 3 is rotated to face the first incident optical fiber interface 12, as shown in fig. 3 and 4, the first incident light 12a reflected by the reflecting surface 3c enters the first incident optical fiber interface 12 and is received by the first incident optical fiber interface 12. On the other hand, when the prism 3 is rotated to face the second incident optical fiber interface 13, the second incident light 13a reflected by the reflecting surface 3c enters the second incident optical fiber interface 13 and is received by the second incident optical fiber interface 13.

Compared with the prior art, in the multi-path optical switching system 10 provided in this embodiment, the outgoing light 11a emitted from the outgoing optical fiber interface 11 perpendicularly enters the first right-angle surface 3a, reaches the reflecting surface 3c, and then is totally reflected and perpendicularly exits from the second right-angle surface 3 b. The prism 3 is rotated to enable the second right-angle surface 3b to be opposite to the first incident optical fiber interface 12, so that the first incident light 12a reflected by the prism 3 can be received by the first incident optical fiber interface 12, and correspondingly, the prism 3 is rotated to enable the second right-angle surface 3b to be opposite to the second incident optical fiber interface 13, so that the second incident light 13a reflected by the prism 3 can be received by the second incident optical fiber interface 13.

In short, the direction of the reflecting surface 3c of the prism 3 can be changed by rotating the prism 3, so that the direction of the light reflected by the reflecting surface 3c is changed, and the light reflected by the reflecting surface 3c can be received by different incident optical fiber interfaces 12 and 13, so that the switching of the dual-path light is realized. In the test, the multi-path optical switching system 10 does not need to be debugged for many times, so that the debugging time is greatly reduced, new equipment does not need to be used, the functionality of the multi-path optical switching system 10 is improved, and the cost is reduced.

The convergence point O is preferably located at the center point of the reflecting surface 3c, and light is incident from the center of the first right-angle surface 3a, reflected at the center point of the reflecting surface 3c, and then emitted through the center of the second right-angle surface 3 b. The loss of the light rays transmitted in the transmission process is small, the luminous flux of the light rays passing through the multi-path light switching system 10 is large, and the test result is more accurate.

Preferably, the axis H passes through the center point of the reflecting surface 3c, i.e. through the convergence point O, and is aligned with the outgoing light ray 11a from the outgoing optical fiber interface 11. Rotating the prism 3 about the axis H does not change the position at which the outgoing light 11a from the outgoing optical fiber interface 11 enters the prism 3, and the direction and position of the light entering the prism 3 are stable, thereby facilitating the prism 3 to stably output the light reflected by the reflecting surface 3 c.

Preferably, the first incident optical fiber interface 12 and the second incident optical fiber interface 13 are located on two opposite sides of the prism 3 on the axis H, and the first incident light ray 12a and the second incident light ray 13a are located on the same straight line. The angle at which the prism 3 transitions between the first entrance fibre interface 12 and the second entrance fibre interface 13 is 180 °. The first incident optical fiber interface 12 and the second incident optical fiber interface 13 thus arranged have the largest optical path difference between the first incident light 12a and the second incident light 13a when the optical paths are switched, so that interference between different optical paths can be reduced, and the procedure and step of rotating the prism 3 can be simplified.

Preferably, the reflecting surface 3c is coated or plated with a reflecting layer (not shown in the figure), the material of the reflecting layer may be magnesium fluoride or aluminum-plated magnesium fluoride, and the reflecting layer is provided to reduce light loss and ensure light flux entering the first incident optical fiber interface 12 and the second incident optical fiber interface 13.

The prism 3 is connected with a motor 4 by the base 2, and the prism 3 can be driven by the motor 4 to rotate. The prism 3 is driven to rotate by the motor 4, the motor 4 is driven accurately and quickly, so that the prism 3 can accurately and quickly change the orientation of the reflecting surface 3c, and the rotation of the prism 3 in different states can be completed within 1 second. The motor 4 may be rotated clockwise or counterclockwise to effect switching of the optical path. Of course, the motor 4 can also rotate along the same rotation direction, so as to realize the switching of the optical path according to different rotation angles. For example, in the present embodiment, the optical path can be switched once every 180 ° by rotating clockwise or counterclockwise.

Referring to fig. 5, 6 and 7, the base 2 is connected to the outgoing optical fiber connector 11 by an incoming side connector 51, a groove (not shown) is disposed at one end of the incoming side connector 51 away from the outgoing optical fiber connector 11, a light blocking flange 52 is disposed at the periphery of the base 2, the periphery of the light blocking flange 52 is in clamping fit with the groove of the incoming side connector 51, and the light blocking flange 52 is in clamping fit with the incoming side connector 51 and is connected by screws. The base 2, the light blocking flange 52 and the entrance side connector 51 cooperate to fix the prism 3 in the space enclosed by the three. The motor 4 rotates to drive the base 2 to rotate, so that the prism 3 is driven to rotate.

The convergence point O deviates from the orthographic projection of the light-blocking flange 52 on the plane perpendicular to the axis H, i.e., the convergence point O deviates from the orthographic projection of the light-blocking flange 52 on the second right-angle surface 3b in the present embodiment, and the emission of the light reflected by the reflecting surface 3c is less affected by the light-blocking flange 52. Meanwhile, the light blocking flange 52 may be made of a mirror material, and may reflect light that strikes the light blocking flange 52, so as to reduce light loss during the transmission process and increase the light flux entering the first incident optical fiber interface 12 or the second incident optical fiber interface 13.

The entrance-side connector 51 is open on the side opposite to the reflecting surface 3c, and extends away from the prism 3 at the open end to form a light-blocking flange 51 a. Through setting up the flange 51a that is in the light, can play the effect of collimater, the flange 51a that is in the light revises the light that reflects through plane of reflection 3c, shelters from the light of unorganized or absorption for from prism 3 through the light beam concentration that jets out after the reflection, when increasing luminous flux, still be favorable to being received by first incident optical fiber interface 12 or second incident optical fiber interface 13.

Preferably, the light blocking flange 51a is made of a light absorbing material, and can absorb the disordered light rays entering the first incident optical fiber interface 12 or the second incident optical fiber interface 13 through the light blocking flange 51 a. Of course, the light blocking flange 51a may also be made of a mirror material, and can reflect the light incident on the light blocking flange 51a, so as to reduce the light loss and increase the light flux of the first incident optical fiber interface 12 or the second incident optical fiber interface 13.

A rotary shaft (not shown) of the motor 4 is connected to the prism 3 by a coupling 6. Wherein, shaft coupling 6 in this embodiment is including installing the card falcon 61 at the tip of motor 4 axis of rotation, has seted up two draw-in grooves 63 on card falcon 61, is provided with the falcon groove 62 with card falcon 61 adaptation on base 2, and the protrusion is provided with two fixture blocks 64 with draw-in groove 63 adaptation in the falcon groove 62. The clamping tenon 61 is inserted into the tenon groove 62 to be clamped, and the clamping block 64 is inserted into the clamping groove 63 to be clamped, so that the rotating shaft is connected with the base 2. At this time, the motor 4 is flexibly connected with the prism 3, and the rotating concentricity of the prism 3 cannot be affected even if the rotating shaft of the motor 4 is not coaxial with the prism 3.

Of course, in other embodiments of the present invention, the coupling 6 may also be other coupling structures, such as a rubber coupling 6 or a spring coupling 6, as long as the flexible connection between the motor 4 and the base 2 can be realized.

In order to reduce the friction resistance to the prism 3 in the rotation process, a shaft barrel assembly 7 is arranged on the shell 1, and the prism 3 is rotatably connected with the shaft barrel assembly 7 and is arranged on the shell 1 under the action of the shaft barrel assembly 7. Only the rotating cylinder assembly 7 needs to be rotated when the prism 3 is rotated, thereby reducing the frictional resistance of the prism 3 during the rotation.

The shaft tube assembly 7 comprises a shaft tube 71, a shaft sleeve 72 and a bearing 73 positioned between the shaft tube 71 and the shaft sleeve 72, wherein the shaft tube 71, the shaft sleeve 72 and the bearing 73 are matched for use, the outer ring of the bearing 73 is fixedly arranged on the shell 1, the inner ring of the bearing 73 is coaxially sleeved outside the shaft tube 71, and the prism 3 is fixedly connected with the shaft sleeve 72. By the rotation of the bearing 73, the frictional resistance when the prism 3 is rotated can be minimized, and the concentricity of the rotation of the prism 3 can be ensured.

The multiple optical switching system 10 further includes a switch (not shown), which may be disposed on an outer surface of the housing 1 or on a housing of an optical apparatus 100 (see fig. 7) described later, and which is in communication with the motor 4 to activate the switch to drive the motor 4 to rotate. The switch can be a toggle switch or a push switch. Of course, the motor 4 may be connected to a control device (not shown) in communication, and the motor 4 may be rotated under the control of the control device. The control device may be an external computer or a control module provided in the housing 1 or the housing of the optical device 100. In the present embodiment, the switch may be used to drive the motor 4 manually, or the control device may be used to drive the motor 4 automatically, and the multi-path optical switching system 10 provides two driving modes of the motor 4, i.e. manual and automatic, for the user to select, which is flexible and convenient.

Dark Spectrum (Dark Spectrum), also called Dark signal, refers to the wavelength values of a series of spectra over a given integration time by a spectrometer without light incidence (neither from the sample nor from ambient light sources). The dark spectrum is used to correct for baseline regression and fixed pattern noise.

In the present embodiment, a gravity weight 9 is further provided, the gravity weight 9 is provided on the prism 3 and is offset from the reflection surface 3c of the prism 3, and the prism 3 can automatically rotate by the gravity of the gravity weight 9 until the gravity weight 9 is located at the lowermost position of the prism 3 in the vertical direction, and the reflection surface 3c at this time is offset from the first incident optical fiber interface 12 and the second incident optical fiber interface 13. More preferably, an angle formed by a line connecting the center of gravity weight 9 and convergence point O and a line connecting reflection surface 3c of prism 3 and convergence point O is set to 135 °. The gravity hammer 9 is arranged to enable the prism 3 to rotate to the reflecting surface 3c to be arranged upwards in an inclined angle of 45 degrees only under the action of gravity of the gravity hammer 9 when the prism 3 does not act externally, the reflecting surface 3c deviates from the first incident optical fiber interface 12 and the second incident optical fiber interface 13 at the same time, and at the moment, the two optical channels are in a Dark spectrum state, so that a Dark spectrum is obtained.

The multiplex optical switching system 10 in the present embodiment is detachably provided. Specifically, the housing 1 and the exit optical fiber interface 11, the first incident optical fiber interface 12 and the second incident optical fiber interface 13, the prism 3 and the base 2, the base 2 and the motor 4, and the shaft cylinder 71 and the shaft sleeve 72 and the bearing 73 are detachably mounted by using a clamping structure or a screw. The detachable multi-path optical switching system 10 is convenient to disassemble and assemble and convenient to maintain.

In addition, the optical path direction in the present embodiment may be switched, for example, the first incident optical fiber interface 12 and the second incident optical fiber interface 13 emit light, emit the light after being totally reflected by the prism 3, and then be received by the outgoing optical fiber interface 11.

Preferably, referring to fig. 8, the multiple optical switching system 10 in the present embodiment is also applicable to the optical apparatus 100, and the multiple optical switching system 10 is located in the optical apparatus 100. In this case, the optical device 100 can switch the dual light, and the functionality and applicability of the optical device 100 can be improved.

In particular, the optical device 100 may be a spectrometer, and the multiple optical switching system 10 is located within the spectrometer and operates as an optical path switching device. Of course, the optical device 100 may also be a photodiode, a photoresistor, a photomultiplier tube, a light source, or other components. The multi-path optical switching system 10 is used here as an optical switch to switch between two or more spectrometers.

Second embodiment

The second embodiment of the present invention provides a multi-path optical switching system 10, which is a further improvement of the first embodiment, and the parts not specifically illustrated include the reference numerals and the text descriptions, which are the same as the first embodiment, and are not repeated herein.

The main improvement of the second embodiment over the first embodiment is that, in the second embodiment of the present invention, as seen in fig. 9, the multi-path optical switching system 10 further includes a third incident optical fiber interface 14, the third incident optical fiber interface 14 is located on a side of the prism 3 different from the first incident optical fiber interface 12 and the second incident optical fiber interface 13 on the axis H, and the third incident optical fiber interface 14 can receive a third incident light 14a reflected by the prism 3. The first incident light 12a, the second incident light 13a and the third incident light 14a are in the same plane, and the plane is perpendicular to the outgoing optical fiber 11 a. By providing the third incident optical fiber interface 14, the direction of the light reflected by the reflecting surface 3c can be changed by changing the direction of the reflecting surface 3c of the prism 3, thereby realizing switching of three light paths.

Preferably, the first incoming fiber interface 12, the second incoming fiber interface 13 and the third incoming fiber interface 14 are arranged rotationally symmetrically about the axis H. The first incident optical fiber interface 12, the second incident optical fiber interface 13 and the third incident optical fiber interface 14 are beneficial to reducing interference among different optical paths, and can also simplify the procedure and steps of rotating the prism 3.

Of course, in other embodiments of the present invention, more incident optical fiber interfaces may be provided, and a plurality of incident optical fiber interfaces are preferably disposed around the axis H in a rotational symmetry manner, so as to realize multi-path optical switching.

Through long-time aging tests and repeated tests of the multi-path optical switching system 10 in the first and second embodiments, the test results both meet the requirements, the stability of the multi-path optical switching system 10 reaches 4.5%, the consistency of the two optical paths reaches 4.4%, and the luminous flux reaches 75%.

The embodiment solves the problem of switching two channels or multi-channel optical paths, and ensures the maximum luminous flux and the consistency of each channel.

Third embodiment

The third embodiment of the present invention provides a multi-path optical switching system 10, which is a further improvement of the first and second embodiments, and the parts not specifically illustrated include the reference numerals and the text descriptions, which are the same as the first and second embodiments, and are not repeated herein.

The main improvement of the third embodiment over the first and second embodiments is that, in the third embodiment of the present invention, as seen in fig. 10, the light reflecting mirror includes a plane mirror 31, the plane mirror 31 has the above-mentioned reflecting surface 3c, and the reflecting surface 3c is disposed toward the outgoing optical fiber interface 11. The reflecting surface 3c is preferably at an angle of 30 ° to 60 ° with respect to the direction of the outgoing light ray 11a from the outgoing optical fiber interface 11, and more preferably, as shown in fig. 10, the reflecting surface 3c is at an angle of 45 ° with respect to the direction of the outgoing light ray 11a from the outgoing optical fiber interface 11.

The outgoing light 11a emitted from the outgoing optical fiber interface 11 is emitted toward the reflecting surface 3c at an incident angle of 45 °, and then is reflected and emitted at an angle of 45 °. The plane mirror 31 rotates about the axis H, and can change the orientation of the reflecting surface 3c, reflect the outgoing optical fiber 11a in different directions, and receive the outgoing optical fiber by the incoming optical fiber interfaces 12 and 13 at different positions, thereby realizing the switching of the dual-path light.

In the present embodiment, the flat mirror 31 may be provided on the base 2 as described above, or may be adhesively provided on the base 2.

Of course, the light reflector may also include an auxiliary mirror 32 matched with the plane mirror 31 as shown in fig. 11, the auxiliary mirror 32 also belongs to a plane mirror, and the auxiliary mirror 32 is matched with the plane mirror 31 to realize the conversion of the light path. For example, in the present embodiment, the plane mirror 31 and the auxiliary mirror 32 both face the outgoing optical fiber interface 11, and the included angle between the two is 135 °, and the outgoing light 11a emitted from the outgoing optical fiber interface 11 is reflected by the auxiliary mirror 32 and the plane mirror 31, respectively, and then exits in the direction perpendicular to the outgoing light 11 a. The axis H passes through the center point of the plane mirror 31, the auxiliary mirror 32 is kept stationary, and the plane mirror 31 is rotated to change the orientation of the reflecting surface 3c, reflect the outgoing optical fiber 11a in different directions, and is received by the incoming optical fiber interface at different positions, thereby realizing the switching of the dual-path light or the multi-path light.

It will be appreciated by those of ordinary skill in the art that in the embodiments described above, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be basically implemented without these technical details and various changes and modifications based on the above-described embodiments. Accordingly, in actual practice, various changes in form and detail may be made to the above-described embodiments without departing from the spirit and scope of the invention.

Claims (10)

1. A multiplexed optical switching system, comprising:

an emergent optical fiber interface capable of emitting emergent light;

the light reflector comprises a reflecting surface, the reflecting surface is arranged towards the emergent optical fiber interface, the light reflector receives and reflects the emergent light rays, and the light reflector can rotate around an axis parallel to the emergent light rays;

the first incident optical fiber interface is positioned on one side of the light reflector on the axis and can receive first incident light reflected by the light reflector;

the second incident optical fiber interface is positioned on one side of the light reflector on the axis, which is different from the first incident optical fiber interface, and can receive second incident light reflected by the light reflector;

the emergent ray, the first incident ray and the second incident ray pass through the same convergence point, and the convergence point is positioned on the reflecting surface;

the light reflector is an isosceles right-angle prism, the prism comprises a first right-angle surface, a second right-angle surface and the reflecting surface, and the emergent light is perpendicular to the first right-angle surface; alternatively, the first and second electrodes may be,

the light reflecting mirror is a plane mirror.

2. The multiple-light switching system according to claim 1, wherein the convergence point is located at a center point of the reflecting surface, and the axis passes through the convergence point.

3. The multi-channel optical switching system according to claim 1 or 2, further comprising:

the base is used for supporting the light reflector, one surface of the base, facing the emergent optical fiber interface, is provided with an inclined surface, and the inclined surface can be attached to the reflecting surface of the light reflector;

the light blocking flange is positioned on the periphery of the base, and the convergence point deviates from the orthographic projection of the light blocking flange on a plane perpendicular to the axis;

the entrance side connecting piece is connected with the base and the emergent optical fiber interface, the entrance side connecting piece is clamped with the light blocking flange, and the base is matched with the light blocking flange and the entrance side connecting piece to fix the light reflector;

the light blocking flange is formed by extending the opening end of the entrance side connecting piece away from the light reflecting mirror.

4. The multiple-optic switching system according to claim 3, wherein the mirror is connected to a motor, the mirror being capable of being rotated by the motor.

5. The multiple optical switching system of claim 4 wherein the motor is coupled to the base using a coupling.

6. The multi-channel optical switching system according to claim 4 or 5, further comprising a switch communicatively connected to the motor, the switch being activated to drive rotation of the motor; alternatively, the first and second electrodes may be,

the motor is in communication connection with a control device, and the motor can rotate under the control of the control device.

7. The multi-path optical switching system according to any one of claims 1-2 and 4-5, further comprising:

the light reflector is positioned in the shell, and the emergent optical fiber interface, the first incident optical fiber interface and the second incident optical fiber interface are positioned outside the shell and communicated with the shell;

the shaft barrel assembly comprises a shaft barrel, a shaft sleeve and a bearing, the shaft barrel, the shaft sleeve and the bearing are matched for use, the outer ring of the bearing is fixedly arranged on the shell, the inner ring of the bearing is coaxially sleeved outside the shaft barrel, and the light reflector is fixedly connected with the shaft sleeve.

8. The multi-path optical switching system according to any one of claims 1-2 and 4-5, further comprising:

the gravity hammer is configured to drive the light reflecting mirror to rotate only under the action of gravity until the gravity hammer is positioned below the light reflecting mirror, and the reflecting surface deviates from the optical paths of the first incident optical fiber interface and the second incident optical fiber interface.

9. The multi-path optical switching system according to any one of claims 1-2 and 4-5, further comprising:

the third incident optical fiber interface is positioned on one side of the light reflector on the axis, which is different from the first incident optical fiber interface and the second incident optical fiber interface, and can receive third incident light reflected by the light reflector;

the first incident optical fiber interface, the second incident optical fiber interface, and the third incident optical fiber interface are rotationally symmetric around the axis.

10. An optical device comprising a multiple optical switching system as claimed in any one of claims 1 to 9.