CN113552713A - All-day telescope scanning device and all-day telescope - Google Patents
All-day telescope scanning device and all-day telescope Download PDFInfo
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- CN113552713A CN113552713A CN202110730440.2A CN202110730440A CN113552713A CN 113552713 A CN113552713 A CN 113552713A CN 202110730440 A CN202110730440 A CN 202110730440A CN 113552713 A CN113552713 A CN 113552713A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention provides a full-sun telescope scanning device and a full-sun telescope, which relate to the technical field of solar telescopes and comprise a main lens cone, a double-folding filter and a detector; the main lens cone comprises an attenuation sheet which is used for limiting the solar energy entering the target surface of the detector; the double-folding filter comprises a first reflecting mirror, a second reflecting mirror, a filtering module and a driving unit; the first reflector reflects the light output by the main lens barrel to the second reflector, and the second reflector reflects the light to the light filtering module to be filtered and then emits the light to the detector; the full-solar telescope scanning device can control the first reflector and the second reflector to rotate, and further finely adjust the angle of a full-solar beam input to the detector.
Description
Technical Field
The invention relates to the technical field of solar telescopes, in particular to a full-sun telescope scanning device and a full-sun telescope.
Background
The full-solar-area imaging subsystem of the 60cm solar telescope comprises 3 imaging channels which are respectively a TiO waveband, an H alpha line and a Ca K line. The all-solar imaging subsystem has the function of all-solar imaging of the three channels and also has the function of guiding and controlling the main telescope so as to ensure that the pointing and tracking precision of the main telescope can be corrected in time when wind or a vibration source exists. Because the imaging view field of the whole solar surface is only 32 ', and the guiding of the primary telescope subsystem at least needs 64' imaging view field to ensure that the position of the whole solar surface imaging subsystem can be accurately calculated when the primary telescope points to any position of the solar surface. If all three imaging channels are designed to be 64' imaging field of view, the spatial resolution is limited, and the central spectrum drift of the edge field of view of the filter is severe.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the technical scheme that:
a full-sun telescope scanning device comprises a main lens cone, a double-folding filter and a detector;
the main lens cone comprises an attenuation sheet which is used for limiting the solar energy entering the target surface of the detector;
the double-folding filter comprises a first reflecting mirror, a second reflecting mirror, a filtering module and a driving unit; the first reflector reflects the light output by the main lens barrel to the second reflector, and the second reflector reflects the light to the light filtering module to be filtered and then emits the light to the detector;
the driving unit is connected with the first reflecting mirror and the second reflecting mirror and can drive the first reflecting mirror and/or the second reflecting mirror to rotate.
Preferably, the filter module includes a Lyot-type birefringent filter and an interference filter; the detectors include CaK imaging detectors, H alpha imaging detectors, and TiO imaging detectors.
Preferably, the main barrel includes an optical beam-reducing module capable of reducing the total solar beam.
Preferably, the driving unit comprises a motor, a first transmission mechanism and a second transmission mechanism, and the motor is connected with the first transmission mechanism and the second transmission mechanism and can drive the first transmission mechanism and the second transmission mechanism to rotate;
the first transmission mechanism is connected with the first reflector, and the second transmission mechanism is connected with the second reflector.
Preferably, the first transmission mechanism and the second transmission mechanism comprise reciprocating mechanisms, each reciprocating mechanism comprises a driving gear set and a driven gear set, each driving gear set comprises a first driving wheel, a second driving wheel and a third driving wheel, the first driving wheel, the second driving wheel and the third driving wheel are coaxial and fixedly connected with each other, and the first driving wheel and the second driving wheel are incomplete gears;
the driven gear set comprises a first driven wheel and a second driven wheel, and the first driven wheel and the second driven wheel are coaxial and fixedly connected with each other;
the reciprocating mechanism also comprises an intermediate wheel, and the intermediate wheel is arranged between the first driving wheel and the first driven wheel and is meshed with the first driving wheel and the first driven wheel; the second driving wheel is meshed with the second driven wheel; the third action wheel is connected with the motor, and the motor can drive the third action wheel to rotate.
Preferably, the first transmission mechanism further comprises a one-way mechanism, the one-way mechanism comprises a first one-way wheel and a second one-way wheel, the first one-way wheel is connected with the motor, and the second one-way wheel is connected with the reciprocating mechanism;
the first one-way wheel is provided with a pawl, the second one-way wheel is provided with a ratchet, and the pawl is in contact with the ratchet.
Preferably, the device further comprises a bi-folded optical path calibration component, wherein the bi-folded optical path calibration component comprises a laser source, a first calibration reflector, a second calibration reflector and a laser displacement sensor.
Preferably, the laser source is arranged beside the main lens barrel, and the direction of the laser output by the laser is parallel to the total solar light output by the main lens barrel;
the first calibration reflector is arranged beside the first reflector and can synchronously rotate with the first reflector, and the second calibration reflector is arranged beside the second reflector and can synchronously rotate with the second reflector.
The application also provides a full-sun telescope, and the full-sun telescope scanning device calculates the pointing position of the full-sun telescope in real time according to the position of the right ascension and the declination of the solar track, controls the full-sun telescope to point to the position, and enables the optical axis of the full-sun telescope to coincide with the center of the sun.
Preferably, the method comprises an automatic tracking operation mode and an interactive tracking operation mode;
under the automatic tracking operation mode, the all-day imaging subsystem automatically interprets the information of the size, the position and the like of the black seeds on the all-day image and automatically points to the mass center position of the black seeds with the largest area.
Under the interactive tracking operation mode, the full-solar imaging subsystem automatically guides the main telescope subsystem to point to the position according to the solar position of the input coordinate, and high-resolution imaging observation of a specific solar area is realized.
The invention has the beneficial effect that the full-solar telescope scanning device is provided, and the high-performance customized interference filter of the American ANDOVER company is adopted as the filter aiming at the TiO waveband full-solar imaging system with wider spectral bandwidth. For the two imaging channels of H α line and Ca K line with narrow spectral bandwidths, a Lyot-type birefringent filter with narrow spectral bandwidth and sharp spectral profile is used. The TiO wave band full-solar imaging system adopts an interference filter, has wide bandwidth and is insensitive to an incident angle, so that the system can be directly placed in an imaging light path to directly carry out spectral filtering and realize full-solar imaging observation of a photosphere layer.
The drive unit of this application can control first speculum and second speculum and rotate, and then finely tune the angle of the full solar surface light beam of input detector.
The driving unit can also synchronously drive the first reflecting mirror and the second reflecting mirror to rotate at the same angle, so that the accuracy of finely adjusting the angle of the full-solar-surface light beam input to the detector is improved.
The double-folded light path calibration component is further included, and feedback adjustment can be performed under the condition that the double-folded light paths are not aligned by using the transmission structure of the driving unit.
Drawings
FIG. 1 is a schematic diagram of a scanning device of a full-sun telescope according to an embodiment of the present invention;
FIG. 2 is a block diagram of a calibration assembly according to an embodiment of the present invention;
FIG. 3 is a bottom view of an alignment assembly in accordance with an embodiment of the present invention;
FIG. 4 is a structural view of a one-way mechanism according to an embodiment of the present invention;
FIG. 5 is a perspective view of a full-sun telescope according to an embodiment of the present invention;
FIG. 6 is a diagram of the optical system of the scanning device of the full-sun telescope according to the embodiment of the present invention;
FIG. 7 is a structural diagram of a bi-folded optical path calibration assembly according to an embodiment of the present invention.
Detailed Description
The method of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments of the invention.
Example 1
Referring to fig. 1-4, an embodiment of the invention provides a scanning device for a full-sun telescope, including a main lens barrel 1, a birefringence filter and a detector 2;
the main lens barrel 1 comprises an attenuation sheet which is used for limiting the solar energy entering the target surface of the detector 2;
the double-folding filter comprises a first reflecting mirror 3, a second reflecting mirror 4, a filtering module and a driving unit; the first reflector 3 reflects the light output by the main lens barrel 1 to the second reflector 4, and the second reflector 4 reflects the light to the light filtering module for filtering and then emits the light to the detector 2;
the driving unit is connected with the first reflecting mirror 3 and the second reflecting mirror 4 and can drive the first reflecting mirror 3 and/or the second reflecting mirror 4 to rotate.
In this embodiment, the driving unit can rotate the first mirror 3 and/or the second mirror 4 to finely adjust the angle of the total solar beam input to the detector 2. In the specific implementation process, the full-sun telescope scanning device is used for obtaining the full view of the sun, the observation range output by the main lens barrel 1 is wide, only a part of light output by the main lens barrel 1 can be input into the detector 2, therefore, the sun cannot be completely aligned to the center due to the setting direction and the setting angle of the full-sun telescope scanning device, and according to the prior art, if the detector 2 of the full-sun telescope scanning device can only observe partial sun images, the angle of the full-sun telescope scanning device needs to be adjusted to align the sun.
However, in most cases, the full-sun telescope scanning device is a pointing position calculated according to the position of the declination and the right ascension of the solar orbit, which is inconvenient to be manually adjusted, and the full-sun telescope scanning device cannot automatically track after being manually adjusted.
Therefore, the driving unit of the all-day telescope scanning device provided by the application can control the first reflecting mirror 3 and/or the second reflecting mirror 4 to rotate, and further finely adjust the angle of the all-day light beam input to the detector 2, so that the sun is in the central position of the image in the image acquired by the detector 2.
In a specific implementation, the first mirror and the second mirror may be directly driven to rotate by two independently controlled stepper motors 51.
Further, the filtering module comprises a Lyot type birefringent filter and an interference filter; the detectors 2 include CaK imaging detector 2, H α imaging detector 2, and TiO imaging detector 2.
Further, the main barrel 1 includes an optical beam-reducing module capable of reducing the total solar beam.
The color sphere layer is positioned on the upper part of the photosphere layer and is a thin layer of solar atmosphere. The material flow form in the solar atmosphere can be obviously seen on the photosphere layer, and the main occurrence height of solar flare and dark stripe projection is also the main occurrence height, so that the method has important scientific observation and popular science observation significance.
In a specific implementation, as shown in FIG. 6, an attenuator is placed at the very front of the system to limit the amount of solar energy that enters the target surface of the detector 2. The broadband optical filter is mainly used for filtering spectral bands outside a multispectral imaging range, limiting stray light and further limiting light energy entering the telescope system.
The spectral bandwidths of two full-solar imaging channels of H alpha line and Ca K of the color sphere layer are narrow, and a Lyot birefringent filter is required to be used. Since the birefringent filter is sensitive to the incident angle of the light, a large angle of incidence will result in a shift of the spectral lines. And birefringent filters generally need to be placed in parallel optical paths. Compared with a TiO waveband photosphere full-solar-area imaging system, two full-solar-area imaging channels of a color sphere layer H alpha line and Ca K need to be provided with a relay optical system in front of the imaging system, and after a light filter is placed in a contracted parallel light beam to perform spectral filtering, full-solar-area narrow-band imaging of two wavebands is realized through the imaging system. Since the field of view required to complete the monitoring imaging of the entire solar surface exceeds the angular range of the light passing through the optical filter, a two-dimensional scanning optical system needs to be added to the relay optical system.
The central wavelengths of the Ca K, H alpha line and TiO wave band full-solar imaging channels are 393.37nm, 656.3nm and 705.7nm respectively, and the full widths at half maximum of a spectrum transmittance curve are 0.1nm, 0.06nm and 2-5 nm respectively. The full-solar light beams passing through the optical filter are finally respectively incident on the Ca K imaging detector 2, the H alpha imaging detector 2 and the TiO imaging detector 2, full-solar imaging images with different solar atmosphere heights are collected, and preparation is made for further data processing, popular science display and popular science education.
Further, the driving unit comprises a motor 51, a first transmission mechanism 52 and a second transmission mechanism 53, wherein the motor 51 is connected with the first transmission mechanism 52 and the second transmission mechanism 53 and can drive the first transmission mechanism 52 and the second transmission mechanism 53 to rotate;
the first transmission mechanism 52 is connected to the first reflecting mirror 3, and the second transmission mechanism 53 is connected to the second reflecting mirror 4.
Further, the first transmission mechanism 52 and the second transmission mechanism 53 comprise reciprocating mechanisms, each reciprocating mechanism comprises a driving gear set 54 and a driven gear set 55, each driving gear set 54 comprises a first driving wheel 541, a second driving wheel 542 and a third driving wheel 543, the first driving wheel 541, the second driving wheel 542 and the third driving wheel 543 are coaxial and fixedly connected with each other, and the first driving wheel 541 and the second driving wheel 542 are incomplete gears;
the driven gear set 55 comprises a first driven wheel 551 and a second driven wheel 552, and the first driven wheel 551 and the second driven wheel 552 are coaxial and fixedly connected with each other;
the reciprocating mechanism further includes an intermediate wheel 56, the intermediate wheel 56 being disposed between the first driving wheel 541 and the first driven wheel 551, and being engaged with the first driving wheel 541 and the first driven wheel 551; the second driving pulley 542 and the second driven pulley 552 are meshed; the third driving wheel 543 is connected with the motor 51, and the motor 51 can drive the third driving wheel 543 to rotate.
Further, the first transmission mechanism 52 further comprises a one-way mechanism, the one-way mechanism comprises a first one-way wheel 571 and a second one-way wheel 572, the first one-way wheel 571 is connected with the motor 51, and the second one-way wheel 572 is connected with the reciprocating mechanism;
the first one-way wheel 571 is provided with a pawl, the second one-way wheel 572 is provided with a ratchet, and the pawl and the ratchet are in contact.
As shown in fig. 2-3, in the present embodiment, the output shaft of the motor 51 is connected to the power gear 58, the motor 51 drives the power gear 58 to rotate, the power gear 58 is engaged with the first one-way wheel 571 of the first transmission system and the second input gear 59 of the second transmission system, and the power gear 58 can drive the first one-way wheel 571 and the second input gear 59 to rotate.
For first transmission 52:
the first transmission mechanism 52 comprises a one-way mechanism, the one-way mechanism comprises a first one-way wheel 571 and a second one-way wheel 572, the first one-way wheel 571 is connected with the motor 51, and the second one-way wheel 572 is connected with the reciprocating mechanism; the first one-way wheel 571 is provided with a pawl, the second one-way wheel 572 is provided with a ratchet, and the pawl and the ratchet are in contact. An elastic member, which may be a spring or a leaf spring, is disposed between the pawl and the first one-way wheel 571, and the elastic member is used to enable the pawl to be close to the ratchet.
When the motor 51 rotates in the forward direction, the pawls contact with the ratchet teeth, and the rotation of the first one-way pulley 571 can be transmitted to the second one-way pulley 572; conversely, when the motor 51 rotates in the reverse direction, the pawls and the ratchet teeth rotate relatively, the elastic member is compressed, and the rotation of the first one-way wheel 571 cannot be transmitted to the second one-way wheel 572.
For the second transmission 53:
when the motor 51 rotates in the forward or reverse direction, the second transmission mechanism 53 can rotate in the forward or reverse direction.
The first transmission mechanism 52 and the second transmission mechanism 53 both comprise reciprocating mechanisms, each reciprocating mechanism comprises a driving gear set 54 and a driven gear set 55, each driving gear set 54 comprises a first driving wheel 541, a second driving wheel 542 and a third driving wheel 543, the first driving wheel 541, the second driving wheel 542 and the third driving wheel 543 are coaxial and are fixedly connected with each other, and the first driving wheel 541 and the second driving wheel 542 are incomplete gears;
the driven gear set 55 comprises a first driven wheel 551 and a second driven wheel 552, and the first driven wheel 551 and the second driven wheel 552 are coaxial and fixedly connected with each other;
the reciprocating mechanism further includes an intermediate wheel 56, the intermediate wheel 56 being disposed between the first driving wheel 541 and the first driven wheel 551, and being engaged with the first driving wheel 541 and the first driven wheel 551; the second driving pulley 542 and the second driven pulley 552 are meshed; the third driving wheel 543 is connected with the motor 51, and the motor 51 can drive the third driving wheel 543 to rotate.
For the first transmission mechanism 52, the second one-way wheel 572 is engaged with the third driving wheel 543; for the second transmission 53, the second input gear 59 is engaged with the third driving gear.
The first driving wheel 541, the second driving wheel 542 and the third driving wheel 543 are coaxial and fixedly connected to each other, and the first driving wheel 541 and the second driving wheel 542 are incomplete gears. The third driving wheel 543 drives the first driving wheel 541 and the second driving wheel 542 to rotate, as shown in fig. 3, only one half of the first driving wheel 541 and the second driving wheel 542 has gears, and the other half has no gears.
As shown in fig. 3, the second driving gear 542 is engaged with the second driven gear 552, and the driven gear set 55 and the driving gear set 54 rotate in opposite directions; the driving gear set 54 continues to rotate, the second driving gear 542 is disengaged from the second driven gear 552, and the first driving gear 541 is engaged with the intermediate gear 56 to drive the intermediate gear 56 to rotate; the intermediate wheel 56 is engaged with the first driven wheel 551 to rotate the first driven wheel 551, and at this time, the driven gear set 55 and the driving gear set 54 rotate in the same direction.
Therefore, when the driving gear set 54 rotates, the driven gear set 55 rotates reciprocally.
Further, the device also comprises a bi-folded optical path calibration component 6, wherein the bi-folded optical path calibration component 6 comprises a laser source 61, a first calibration reflector 62, a second calibration reflector 63 and a laser displacement sensor 64.
Further, the laser source 61 is arranged beside the main lens barrel 1, and the direction of the laser output by the laser is parallel to the full-sunlight output by the main lens barrel 1;
the first calibration reflector 62 is disposed beside the first reflector 3 and can rotate synchronously with the first reflector 3, and the second calibration reflector 63 is disposed beside the second reflector 4 and can rotate synchronously with the second reflector 4.
Referring to fig. 7, in a specific implementation process, a light path emitted by the bi-fold light path calibration component 6 is parallel to a full-sun light path in space, before the first transmission mechanism 52 and the second transmission mechanism 53 are adjusted by the driving unit, the laser is started, whether output light rays of the first transmission mechanism 52 and the second transmission mechanism 53 are parallel or not is judged by the laser displacement sensor 64, and if the output light rays are parallel, the first transmission mechanism 52 and the second transmission mechanism 53 can synchronously rotate through the forward rotation motor 51;
if the output light beams of the first transmission mechanism 52 and the second transmission mechanism 53 are not parallel, the motor 51 is rotated in the reverse direction to adjust the angle of the first transmission mechanism 52, so that after the output light beams of the first transmission mechanism 52 and the second transmission mechanism 53 are parallel, the first transmission mechanism 52 and the second transmission mechanism 53 can be synchronously rotated through the motor 51 rotated in the forward direction, and the angle of the full-solar-surface light beam input into the detector 2 is further finely adjusted.
Referring to fig. 5, the present application further provides a full-sun telescope, wherein the full-sun telescope scanning device calculates the pointing position of the full-sun telescope in real time according to the position of the right ascension and declination of the solar orbit, and controls the full-sun telescope to point at the position, so that the optical axis of the full-sun telescope coincides with the center of the sun.
Further, an automatic tracking operation mode and an interactive tracking operation mode are included;
under the automatic tracking operation mode, the full-sun telescope can automatically interpret the size, position and other information of the black particles on the full-sun image and automatically point to the mass center position of the black particles with the largest area.
Under the interactive tracking operation mode, the full-sun telescope automatically guides the main telescope subsystem to point to the position according to the sun position of the input coordinate, and high-resolution imaging observation of a specific sun area is realized.
In the specific implementation process, the full-sun telescope has the capacity of multispectral full-sun imaging, and also has the function of guiding and controlling a 60cm solar telescope main telescope subsystem, and the function is completed by a photosphere layer (TiO waveband) full-sun imaging subsystem with a 64' imaging view field.
The specific working mode is as follows: and calculating the pointing position of the 60cm solar telescope in real time according to the declination and declination positions of the solar orbit, and controlling the primary telescope subsystem to point at the position, so as to finally realize the coincidence of the optical axis of the 60cm solar telescope and the center of the solar surface.
Under the automatic tracking operation mode, the full-sun telescope can automatically interpret the size, position and other information of the black particles on the full-sun image and automatically point to the mass center position of the black particles with the largest area.
Under the interactive tracking operation mode, the full-sun telescope inputs the sun position according to the mouse or the coordinates of the audience, and automatically guides the main telescope subsystem to point to the position, so that high-resolution imaging observation of a specific sun region is realized.
When the pointing position of the main telescope is located at the center of the non-full-solar plane, the color sphere layer (H alpha line) and the Ca K line full-solar plane imaging system of the imaging view field 32' ensure that the full-solar plane is always located at the center of the imaging detector 2 through adjusting and controlling respective adjusting devices.
In addition, under any operation mode, the full-sun telescope measures the pointing parameters of the primary telescope subsystem in real time, and corrects the pointing errors of the primary telescope in real time when the pointing accuracy of the primary telescope subsystem is influenced by external wind load, vibration and the like. The tracking precision of the full-solar telescope is required to be within 0.5'.
In the embodiment, in order to adapt to the salt fog environment of the 60cm solar telescope at seaside, the full-day telescope is subjected to corresponding salt fog resistance and corrosion resistance treatment measures, and an anti-reflection dielectric film is plated on the outer side of the attenuation sheet, so that the damage of seaside salt fog to a film system is prevented, and the performance and safety of optical elements and structural elements inside the full-day telescope are protected;
salt mist permeation prevention treatment is carried out inside the full-sun telescope, so that internal optical parts and structural parts are protected to be safe;
the bottom layer of three-proofing paint is coated outside the lens barrel structure of the all-day telescope, so that the salt fog resistance and the corrosion resistance of the all-day telescope are guaranteed.
In addition, the full-solar telescope is subjected to athermal treatment in the aspect of structural design, and the specific measures comprise:
after the three-proofing paint is coated on the surface of the lens cone structure of the all-day telescope, the TiO2 paint is coated again, so that the surface reflectivity of the structure is obviously improved, the heat absorption is reduced, the structure stability is obviously improved, and the imaging performance is ensured;
the three imaging channels of the imaging camera of the all-solar telescope are all provided with automatic focusing mechanisms, so that the system defocusing aberration caused by the thermal deformation of an optical element or a structure can be effectively compensated, and the imaging quality of the all-solar telescope is ensured.
The automatic focusing mechanism adopts a linear displacement mechanism, is driven by a stepping motor 51, and is additionally provided with a mechanical limit and an electrical limit at a focusing limit position, so that the safety of a focusing system is ensured.
The full-sun telescope is arranged on a four-way structure of a main lens barrel 1 of the 60cm solar telescope, and the full-sun telescope can track and continuously monitor and image along with the 60cm solar telescope
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "inner", "outer", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for the purpose of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Where "inside" refers to an interior or enclosed area or space. "periphery" refers to an area around a particular component or a particular area.
In the description of the embodiments of the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the embodiments of the invention, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the embodiments of the present invention, it should be understood that "-" and "-" indicate the same range of two numerical values, and the range includes the endpoints. For example, "A-B" means a range greater than or equal to A and less than or equal to B. "A to B" means a range of not less than A and not more than B.
In the description of the embodiments of the present invention, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A full-sun telescope scanning device is characterized in that: comprises a main lens cone, a double-folding filter and a detector;
the main lens cone comprises an attenuation sheet which is used for limiting the solar energy entering the target surface of the detector;
the double-folding filter comprises a first reflecting mirror, a second reflecting mirror, a filtering module and a driving unit; the first reflector reflects the light output by the main lens barrel to the second reflector, and the second reflector reflects the light to the light filtering module to be filtered and then emits the light to the detector;
the driving unit is connected with the first reflecting mirror and the second reflecting mirror and can drive the first reflecting mirror and/or the second reflecting mirror to rotate.
2. An all-day telescope scanning device as claimed in claim 1, wherein: the filtering module comprises a Lyot type birefringent filter and an interference filter; the detectors include CaK imaging detectors, H alpha imaging detectors, and TiO imaging detectors.
3. An all-day telescope scanning device as claimed in claim 2, wherein: the main lens cone comprises an optical beam-shrinking module, and the optical beam-shrinking module can shrink the full-solar light beam.
4. An all-day telescope scanning device as claimed in claim 1, wherein: the driving unit comprises a motor, a first transmission mechanism and a second transmission mechanism, and the motor is connected with the first transmission mechanism and the second transmission mechanism and can drive the first transmission mechanism and the second transmission mechanism to rotate;
the first transmission mechanism is connected with the first reflector, and the second transmission mechanism is connected with the second reflector.
5. An all-day telescope scanning device according to claim 4, wherein: the first transmission mechanism and the second transmission mechanism comprise reciprocating mechanisms, each reciprocating mechanism comprises a driving gear set and a driven gear set, each driving gear set comprises a first driving wheel, a second driving wheel and a third driving wheel, the first driving wheel, the second driving wheel and the third driving wheel are coaxial and fixedly connected with each other, and the first driving wheel and the second driving wheel are incomplete gears;
the driven gear set comprises a first driven wheel and a second driven wheel, and the first driven wheel and the second driven wheel are coaxial and fixedly connected with each other;
the reciprocating mechanism also comprises an intermediate wheel, and the intermediate wheel is arranged between the first driving wheel and the first driven wheel and is meshed with the first driving wheel and the first driven wheel; the second driving wheel is meshed with the second driven wheel; the third action wheel is connected with the motor, and the motor can drive the third action wheel to rotate.
6. An all-day telescope scanning device according to claim 4 or 5, wherein: the first transmission mechanism further comprises a one-way mechanism, the one-way mechanism comprises a first one-way wheel and a second one-way wheel, the first one-way wheel is connected with the motor, and the second one-way wheel is connected with the reciprocating mechanism;
the first one-way wheel is provided with a pawl, the second one-way wheel is provided with a ratchet, and the pawl is in contact with the ratchet.
7. An all-day telescope scanning device according to claim 4, wherein: the double-folded light path calibration assembly comprises a laser source, a first calibration reflector, a second calibration reflector and a laser displacement sensor.
8. An all-day telescope scanning device according to claim 7, wherein: the laser source is arranged beside the main lens barrel, and the direction of the laser output by the laser is parallel to the total solar light output by the main lens barrel;
the first calibration reflector is arranged beside the first reflector and can synchronously rotate with the first reflector, and the second calibration reflector is arranged beside the second reflector and can synchronously rotate with the second reflector.
9. An all-day telescope comprising an all-day telescope scanning device as claimed in any one of claims 1 to 8, wherein: the full-sun telescope scanning device calculates the pointing position of the full-sun telescope in real time according to the position of the declination and the right ascension of the solar orbit, controls the full-sun telescope to point at the pointing position, and enables the optical axis of the full-sun telescope to coincide with the center of the sun.
10. The telescope according to claim 9, wherein: the method comprises an automatic tracking operation mode and an interactive tracking operation mode;
under the automatic tracking operation mode, the all-day imaging subsystem automatically interprets the information of the size, the position and the like of the black seeds on the all-day image and automatically points to the mass center position of the black seeds with the largest area.
Under the interactive tracking operation mode, the full-solar imaging subsystem automatically guides the main telescope subsystem to point to the position according to the solar position of the input coordinate, and high-resolution imaging observation of a specific solar area is realized.
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