KR101770311B1 - Apparatus for concentrating sunlight - Google Patents

Abstract

The present invention relates to a solar light concentrator, and more particularly, to a solar concentrator which includes a light collecting part for reflecting sun light received therein at least two times and condensing the collected sun light, a reflecting plate for receiving the condensed light passing through the light collecting part, A tilting case opened to the lower side, a panning structure supporting the tilting case so as to be tilting movable and having a light path, supporting means for supporting the panning structure so as to be capable of panning, tilting the tilting case in a state of being mounted on the panning structure, A tilting portion for moving the condensing portion in accordance with the altitude change of the sun; a panning portion and a tilting portion for panning the panning structure in a state where the panning structure is supported by the supporting means, And a control unit for controlling the operation of the panning unit, wherein the tracking motion of the light collecting unit with respect to the sun is very accurate In addition, since the penetration of various dusts and contaminants into the inside of the optical path is completely blocked, there is no loss of light passing therethrough, and in addition, a natural sunlight is concentrated and transmitted, Ultraviolet rays and infrared rays are also totally penetrated, and indoor light, plant growth, sterilization / disinfection, vitamin D generation, air conditioning and heating can be used for various purposes.

Description

[0001] APPARATUS FOR CONCENTRATING SUNLIGHT [0002]

Field of the Invention [0002] The present invention relates to a light concentrating apparatus for concentrating solar light, and more particularly, to a solar concentrating apparatus configured to precisely implement tilting and panning along a sun's position.

As the exhaustion of fossil energy such as petroleum and natural gas and the serious and diverse problems caused by global warming have been raised every day, international regulations on environment have been strengthened and the use of fossil fuels has been suppressed and solar energy, wind power, There is growing interest in using renewable energy.

Among renewable energy, solar energy is being utilized in various ways. For example, solar heat can be used for heating, heat energy can be converted into electric energy to be used as a power source, or light itself can be used for indoor lighting.

For example, as disclosed in Korean Utility Model Registration Utility Model No. 20-0303227, techniques such as a daylight saving device using a sunlight condensing device for collecting sunlight and applying it to indoor illumination have been developed.

The conventional daylight-holding apparatus includes a reflecting unit that reflects sunlight, a condensing unit that is disposed in front of the reflecting unit and condenses light reflected by the reflecting unit, and a condensing unit that receives light reflected by the condensing unit, An optical fiber for moving the optical fiber, and a solar irradiator provided at the end of the optical fiber.

However, since the frame for supporting the light collecting portion is disposed on the entire surface of the reflection portion, the shadow light is always scattered on the reflection portion of the daylight saving device. Since the frame has to have a certain degree of stiffness to secure the light collecting part strongly and stably, it can not be made thin, for example, in order to reduce the area of the shade.

In addition, there is a disadvantage in that the infrared band is filtered or the infrared and ultraviolet band are blocked or almost attenuated while the light travels along the optical fiber to enter the light collecting part. The fact that the amount of light irradiated through the irradiation part of the optical fiber end is smaller than the amount of light incident on the light collecting part means that the overall efficiency of the device is lowered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a light source device and a method of manufacturing the same, There is an object to provide a solar concentrating apparatus which does not have a solar cell.

The present invention also relates to a method of concentrating natural sunlight and transmitting the sunlight as well as not only visible light but also ultraviolet light and infrared light so that it can be used in indoor or underground environments such as indoor lighting, plant growth, sterilization / disinfection, The present invention is directed to a solar light concentrator which can exhibit the same effect as the solar light of the sun light.

According to an aspect of the present invention, there is provided a solar light concentrating apparatus comprising: a light collecting unit for reflecting sunlight received therein at least two times, A tilting case which is fixed to a lower portion of the light collecting portion and has a reflector for receiving and condensing the condensed light passing through the light collecting portion and opened downward; A panning structure supporting the tilting case in a tilting motion and having a light path; Supporting means for supporting the panning structure so as to be capable of panning; A tilting unit that tilts the tilting case in a state of being mounted on the panning structure and moves the condensing unit in accordance with the altitude change of the sun; A panning unit installed in the panning structure and panning the panning structure in a state of being supported by the supporting unit to move the focusing unit in accordance with the azimuth change of the sun; And a control unit for controlling operations of the tilting unit and the panning unit.

The condensing unit may include a condensing case having a predetermined diameter; A main mirror installed in the light-collecting case, receiving sunlight to reflect and condense the light, and having a center hole at the center thereof; A sub-mirror facing the main mirror and reflecting the light condensed by the main mirror to pass through the center hole; And a light-transmissive cover for covering the upper space of the main mirror by covering the light-collecting case at the center of the sub-mirror.

The reflector may be a mirror that reflects the condensed light passing through the center hole and guides the condensed light to the optical path. The reflector has a rotation axis on both sides of the mirror, and the rotation axis of the reflection plate is rotatably disposed inside the tilting case A support frame for supporting the support frame, and an angle adjusting unit installed on the support frame for adjusting the angle of the mirror.

In addition, the supporting means may include: a base for providing a supporting force; A pedestal provided on the base and supporting the panning structure so as to be panned; And a hollow fixed cylinder fixed to the base, a part of which is positioned inside the panning structure and provides a vertical light path.

In addition, the light path in the center hole or the panning structure of the light collecting part may further include a light-transmitting sealer for blocking the center hole or the light path and allowing the condensed light to pass therethrough.

Further, the translucent sealer may include: a quartz plate for passing the condensed light; And a holder for accommodating the quartz plate therein.

Also, the tilting case may be tiltably supported on the panning structure through a tilting shaft, and the tilting unit may include a tilting worm wheel fixed to the tilting shaft; A tilting worm which meshes with the tilting worm wheel; And a tilting motor that axially rotates the tilting worm and causes the tilting case to rotate through the tilting worm wheel and the tilting shaft.

The panning unit may include a panning worm wheel fixed to an upper end of the fixed cylinder; A panning worm which mates with the panning worm wheel; A worm holder supporting the panning worm rotatably and fixed to the inside of the panning structure; And a panning motor that pivotally rotates the panning worm so that the panning structure panning moves the fixed cylinder as a central axis.

The solar light condensing apparatus of the present invention as described above is excellent in the follow-up motion of the light collecting unit with respect to the sun and is thus highly reliable, and the penetration of various dusts and contaminants into the light path is completely blocked, There is almost no efficiency.

The present invention also relates to a method and a device for collecting and transmitting natural sunlight as it transmits not only visible light but also ultraviolet rays and infrared rays to provide natural light in indoor or underground environments such as indoor lighting, plant growth, sterilization / disinfection, It has the same effect as the sunlight in the field, and its application range is wide.

1 is a perspective view of a solar light condensing apparatus according to an embodiment of the present invention.
Figs. 2 to 4 are views for explaining the internal configuration of the solar light collecting apparatus shown in Fig. 1. Fig.
5 is an exploded perspective view showing the internal structure of the tilting case shown in FIG.
6 is a view for explaining the operation of the solar light condensing apparatus according to an embodiment of the present invention.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Basically, the solar light collecting device 11 according to the present embodiment is constructed so as to be vertically installed on the ground or on the roof of a building, to condense the solar light, to send it down to a desired space. The desired space will be the interior or underground that needs natural lighting.

Especially, since the worm and worm wheel, which are means for adjusting the tilting angle and the panning angle of the light collecting part 13 to be described later, are independently driven, very precise and stable operation performance can be realized.

1 is a perspective view of a solar light condensing device 11 according to an embodiment of the present invention.

As shown in the drawing, the solar light collecting device 11 according to the present embodiment has a cylindrical shape and includes a light collecting portion 13 having a main diameter (21 in FIG. 2) and a minor diameter (19) And a driving unit 25 for supporting the light collecting unit 13 and controlling the tilting angle and the panning angle of the light collecting unit 13.

The light collecting unit 13 receives sun light and collects the light, and guides the collected light to the driving unit 25 side.

The driving unit 25 includes a supporting unit 33 fixed to a horizontal plane and a panning structure 33 that is axially rotated with respect to the axis of the supporting unit 37 while being supported by the supporting unit 33 And a tilting case 27 positioned at an upper portion of the panning structure 39 so as to be able to move in a tilting motion and having an upper end coupled to the light collecting part 13. Due to the action of the driving unit 25, the light collecting unit 13 always moves along the sun's orbit and can absorb the maximum solar energy.

Hereinafter, the detailed configuration of the above-described light condensing device 11 will be described in detail with reference to FIG. 2 through FIG.

Figs. 2 to 4 are views for explaining the internal configuration of the solar light collecting device 11 shown in Fig. 1. Fig.

2, the light-collecting portion 13 includes a cylindrical light-collecting case 15 having upper and lower openings and a constant diameter, and a light-transmitting cover 17 (see FIG. 1) covering the upper and lower ends of the light- A main mirror 21 mounted inside the light-collecting case 15; a sub-mirror 19 positioned at the center of the light-transmissive cover 17; and a light-transmitting sealer 47 do.

The light condensing unit 13 reflects sunlight received from the outside at least two times and collects the sunlight. In the present embodiment, a set of the main mirror 21 and the sub-mirror 19 are provided twice.

The light-collecting case 15 is a cylindrical member made of metal or synthetic resin and has rigidity, and stably protects the main mirror 21 inside. The size of the light condensing case 15 may be varied as required.

The support plate 23 is a disc-shaped support plate fixed to the lower end of the light-collecting case 15, and its bottom surface engages with the upper end of the tilting case 27. Since the tilting case 27 and the light collecting part 13 form a body, the tilting case 27 simultaneously performs a tilting motion. A through hole 23a is formed in the center of the support plate 23. The through hole 23a is a path through which the condensed light (collected light) re-reflected to the sub-mirror 19 to be described later passes downward.

The translucent cover 17 also seals the upper space 15a of the main mirror 21 and has a minor diameter 19 at its center. The light-transmitting cover 17 may be made of glass or quartz, and in some cases, a support structure instead of a cover may be used.

The sub-mirror 19 is held at a constant distance from the main mirror 21 while being supported by the light-transmissive cover 17. The interval of the minor diameter 19 with respect to the main mirror 21 is a distance at which the light reflected by the main mirror 21 and condensed can be irradiated to the mirror surface center of the minor diameter 19. [

Particularly, as described above, since the translucent cover 17 itself serves as a support for supporting the minor diameter 19, there is no frame for supporting the minor 19, 21). It means that the shade does not fall on the main mirror 21.

As shown in FIG. 6, the sub-mirror 19 is a concave mirror that is reflected by the main mirror 21 and reflects the condensed light back to a mirror 29 to be described later. The sub-mirror 19 is detachable with respect to the light- . The peripheral portion of the minor diameter 19 and the inner circumferential surface of the mounting hole of the light-transmitting cover 17 may be screwed together by threading. It goes without saying that the sub-diameter 19 can be replaced when the sub-diameter 19 is detachably applied.

On the other hand, the main mirror 21 is a concave mirror whose edge is tightly fixed to the inner circumferential surface of the condenser case 15, and as shown in Fig. 6, the sunlight incident through the light projector cover 17 is reflected and condensed Concentrate on the squadron (19). A center hole 21a is formed at the center of the main mirror 21. The center hole 21a is a passage through which condensed light reflected by the minor diameter 19 passes.

A translucent seal 47 is provided in the center hole 21a. The transparent hermetic enclosure 47 is constituted by a ring-shaped holder 47b tightly fixed to the inner peripheral surface of the center hole 21a and a quartz plate 47a fitted in the holder 47b.

The transparent hermetic enclosure 47 blocks the center hole 21a to prevent dust, various foreign substances or pests from entering the upper space 15a. The upper space 15a is completely sealed by the light-transmitting cover 17 and the light-transmitting seal 47. As the holder 47b, a metal or a heat-resistant sealing material can be used.

Further, the quartz plate 47a passes the condensed light reflected by the sub-mirror 19 as it is as a disk having a certain thickness. As it is known, quartz does not block ultraviolet rays or infrared rays when passing light. Particularly, since the quartz plate 47a has a constant thickness, it does not refract the condensed light passing through it.

The driving unit 25 includes a supporting means 33 for providing a supporting force, a panning structure 39 supported on the upper portion of the supporting means 33 so as to be capable of panning, A panning section 45 located inside the panning structure 39 and panning the panning structure 39 and a tilting section 27 for tilting the tilting casing 27 43).

The panning motion refers to a clockwise or counterclockwise rotation about a vertical center axis of a fixed cylinder 45h to be described later.

The support means 33 includes a base 35 fixed to the floor, a support portion 37 provided on the base 35 to support the panning structure 39 axially rotatably, And a fixed cylinder 45h extending vertically in a state fixed to the panning structure 39 and a part of which is located in the receiving space 39a of the panning structure 39. [ The floor may be the floor or the roof of the building or any structure.

The bearing portion 37 is a bearing which operates in a state of being supported by the base 35. The bearing portion 37 supports both the panning structure 39 and the panning structure 39 in a vertical direction . That is, even if the center of gravity of the panning structure 39 is laterally eccentric, the panning structure 39 is supported so as not to fall over.

The fixed cylinder 45h is vertically extended in a state where the lower end of the fixed cylinder 45h is fixed to the base 35. The fixed cylinder 45h is a hollow cylinder having an upper portion passing through the center portion of the receiving portion 37 and the bottom portion 39e of the panning structure 39, Member. The fixed cylinder 45h maintains a fixed state even when the panning structure 39 rotates.

In particular, the fixed cylinder 45h provides a light path (45k in Fig. 6) having a constant inner diameter. The light passage 45k is a passage through which the condensed light reflected by the mirror 29 passes. Light condensed through the light path 45k is guided to a necessary space, and is used, for example, for indoor lighting, plant growth, sun bathing, heating, and the like.

The panning structure 39 supports the tilting case 27 so that the tilting case 27 can be vertically tilted. The panning structure 39 includes a pair of vertically extending support plates 39d, a partition plate 39b connecting the support plate 39d, And a bottom portion 39e. The partition 39b is a member horizontally fixed to the upper portion of the bottom portion 39e and has a light passage 39c at the center thereof. The light passage 39c is also a through hole for passing condensation downward.

Reference numeral 41 denotes a side cover. The side cover 41 covers and protects the tilting part 43 provided outside the one support plate 39d. For reference, the tilting part 43 is installed only on one side support plate 39d. However, they may be provided on both side support plates 39d as required.

The tilting case 27 is supported by a tilting shaft 43h between the support plates 39d. The tilting case 27 can rotate in the up and down direction, that is, in the tilting motion, using the tilting shaft 43h as the rotating shaft.

The tilting case 27 is an upper opened casing having an angle-controlled mirror 29 therein.

5 shows the inner structure of the tilting case 27 in detail.

As shown in Fig. 5, the tilting case 27 has a square opening at its upper end. The upper end surface of the tilting case 27 is tightly fixed to the bottom surface of the support plate 23 of the light collecting part 13. [ The lower portion of the tilting case 27 takes the form of a partial cylinder and has a light passing slit 27b. The inner space 27a of the tilting case 27 is opened downward through the light passing slit 27b.

The light passing slit 27b is a through hole having a constant width so that condensed light reflected by the mirror 29 is vertically irradiated through the light path 39c irrespective of the tilting angle of the tilting case 27. [

The tilting case 27 includes a supporting frame 27c for rotatably supporting a rotary shaft 29a of the mirror 29 and a supporting frame 27c supported by the supporting frame 27c, And an angle adjusting unit 31 for adjusting the angle of view.

6, the mirror 29 is a reflector that receives the condensed light Z coming from the condenser 13 and guides the reflected light to the light passages 39c and 45k. The condenser 29 has a rotary shaft 29a . The rotary shaft 29a is rotatably supported by the support frame 27c and is rotated by the angle adjuster 31. [ As the rotary shaft 29a rotates, it is natural that the angle of the mirror 29 is changed.

The angle adjusting unit 31 includes an operation motor 31a fixed to one support frame 27c, a drive pulley 31b fixed to a drive shaft of the operation motor 31a, And a belt 31d connecting the drive pulley 31b and the driven pulley 31c.

The operation motor 31a is a precision stepping motor that is operated by a control signal of the control unit (51 of FIG. 6) to move the drive pulley 31b. The mirror 29 can be angularly moved by an angle of 1 degree or less by driving the operation motor 31a by the control unit 51. [ The angle adjusting unit 31 independently drives the tilting unit 43 and the panning unit 45 regardless of the mechanical action.

The description will be continued with reference to Figs. 2 to 4 again.

As shown in the figure, the tilting unit 43 includes a tilting motor 43a supported by a support plate 39d, and a tilting motor 43a fixed to the outer surface of the support plate 39d at a side of the tilting motor 43a A tilting worm 43f supported at both ends of the support member 43e so as to be rotatable about its axis, a tilting drive pulley 43b fixed to the drive shaft of the tilting motor 43a, A tilting driven pulley 43d fitted to one end of the tilting worm 43f and a transmission belt 43c connecting the tilting drive pulley 43b and the tilting driven pulley 43d to each other, And a tilting worm wheel 43g fixed to the tilting shaft 43h in a combined state.

By applying the tilting worm 43f and the tilting worm wheel 43g as described above, the actual angle of the tilting case 27 as well as the light-collecting portion 13 is not changed even if an external force is applied to the light-collecting portion 13, for example. As is known, worms and worm wheels are because the power transfer flow has one directionality of the worm wheel in the worm.

The tilting worm wheel 43g rotates as the tilting worm 43f rotates and rotates the tilting shaft 43h. As a result, the tilting motor 43a can be driven to tilt the tilting case 27 and the light collecting part 13 to a desired angle.

The tilting motor 43a is also operated by a control signal from the controller 51. [ As a result, the tilting angle of the light condensing portion 13 is precisely controlled by the controller 51.

On the other hand, the panning part 45 panners the panning structure 39 in both directions so that the light collecting part 13 corresponds to a change in the position of the sun. That is, the panning angle of the light collecting part 13 is adjusted.

The panning portion 45 includes a panning worm wheel 45e fixed to the upper end of the fixed cylinder 45h and a panning worm 45g mating with the panning worm wheel 45e, A worm holder 45f for rotatably supporting the panning worm 45g and a panning motor 45a for pivoting the panning worm 45g.

A panning drive pulley 45b is fixed to the drive shaft of the panning motor 45a and a panning driven pulley 45d is provided to the panning worm 45g. The panning drive pulley 45b and the panning driven pulley 45b 45d are energized by a power transmission belt 45c.

In the panning portion 45 having the above configuration, when the panning motor 45a is driven to rotate the panning worm 45g, the panning worm 45g is rotated by the panning worm wheel 45e 45e. Since the panning worm wheel 45e is fixed to the fixed cylinder 45h, the panning worm 45g receives the reaction force and moves along the circumferential direction of the panning worm wheel 45e.

Needless to say, the panning structure 39 simultaneously moves while the panning worm 45g moves along the periphery of the panning worm wheel 45e.

In addition, the panning motor 45a also performs precise driving in response to a control signal from the control unit 51. [ The azimuth angle of the light collecting unit 13 is adjusted by the control signal of the controller 51. [

The condensing device 11 according to the present embodiment is capable of moving the tilting portion 43 and the panning portion 45 depending on the control operation of the control portion 51 to thereby tilting the condensing portion 13 The angles and the panning angles are precisely operated and the angle of the mirror 29 is adjusted by the angle adjusting portion 31 so that the light condensing (Z in FIG. 6) can be guided to the vertical lower portion regardless of the position of the sun.

6 is a view for explaining the operation of the solar light condensing device 11 according to the embodiment of the present invention.

Referring to the drawing, it can be seen that the main mirror 21 of the light collecting part 13 receives solar light in a state of being tilted so as to have an angle of &thetas; with respect to a vertical line.

The tilting angle of the light-collecting unit 13 reflects the current altitude of the sun. That is, the sun altitude is grasped in real time and adjusted through the tilting unit 43. Similarly, the direction of the light collecting portion 13 is adjusted in real time by the panning portion 45 in accordance with the orientation of the sun. That is, the azimuth of the light-collecting unit 13 is changed without stopping under the control of the control unit 51. [

Since the sun continues to move without stopping, it is natural that the tilting angle, the panning angle, and the reflection angle of the mirror continuously change.

The light reflected by the main mirror 21 is converged by the minor diameter 19 and passes through the center hole 21a and the through hole 23a to reach the mirror 29 in a condensed state. The mirror 29 is converged by the half of the tilting angle? Of the condensing part 13 and is guided to the light paths 39c and 45k.

Since the incident angle and the reflection angle of the light to the mirror are the same, the angle between the mirror 29 and the vertical line is half of the tilting angle. For example, if the light collecting section 13 is inclined at an angle of 30 degrees with respect to the vertical line, the mirror 29 is inclined at an angle of 15 degrees with respect to the vertical line. The condensed light Z reflected by the mirror 29 passes through the light passages 39c and 45k and is supplied to a customer.

The light collecting device 11 according to the present embodiment controls the angle of the light collecting part (the light collecting part 11) by simultaneous control of the angle adjusting part 31, the tilting part 43 and the panning part 45 under the control of the control part 51 13) always accepts the maximum amount of light corresponding to the change of the position of the sun.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

11: condenser 13: condenser 15: condenser case
15a: Upper space 17: Projection cover 19:
21: main mirror 21a: center hole 23: support plate
23a: through hole 25: driving part 27: tilting case
27a: inner space 27b: light passage slit 27c: support frame
29: mirror 29a: rotary shaft 31:
31a: operating motor 31b: driving pulley 31c: driven pulley
31d: Belt 33: Supporting means 35: Base
37: receiving portion 39: panning structure 39a: receiving space
39b: diaphragm 39c: light passage 39d: support plate
39e: bottom portion 41: side cover 43: tilting portion
43a: tilting motor 43b: tilting drive pulley 43c: electric belt
43d: tilting driven pulley 43e: support member 43f: tilting worm
43g: tilting worm wheel 43h: tilting shaft 45: panning part
45a: Panning motor 45b: Panning drive pulley 45c: Electric belt
45d: panning driven pulley 45e: panning worm wheel 45f: worm holder
45g: Panning worm 45h: Fixed cylinder 45k: Light path
47: Transparent sealing device 47a: Quartz plate 47b: Holder
51:

Claims (8)

A light collecting part for reflecting the received solar light at least twice inside and condensing the collected sunlight;
A tilting case which is fixed to a lower portion of the light collecting portion and has a reflecting plate for receiving and reflecting the condensed light passing through the light collecting portion,
A panning structure supporting the tilting case in a tilting motion and having a light path;
Supporting means for supporting the panning structure so as to be capable of panning;
A tilting unit that tilts the tilting case in a state of being mounted on the panning structure and moves the condensing unit in accordance with the altitude change of the sun;
A panning unit installed in the panning structure and panning the panning structure in a state of being supported by the supporting unit to move the focusing unit in accordance with the azimuth change of the sun; And
And a control unit for controlling operations of the tilting unit and the panning unit,
Wherein the panning structure comprises:
A pair of vertically extending support plates;
A bottom portion connecting the pair of support plates; And
And a diaphragm connected to the pair of support plates, the diaphragm being horizontally fixed to the upper portion of the bottom portion, the diaphragm having the optical path in the center,
Wherein the support means comprises:
A base secured to the floor to provide a bearing force;
A pedestal provided at an upper portion of the base and supporting the panning structure to be rotatable; And
And a hollow fixed cylinder fixed to the base and a part of which is positioned inside the panning structure,
Wherein the tilting case is tiltably supported between the pair of support plates via a tilting shaft,
The tilting portion
A tilting worm wheel fixed to the tilting shaft;
A tilting worm which meshes with the tilting worm wheel; And
And a tilting motor that axially rotates the tilting worm while being supported by the support plate and tilts the tilting case and the light collecting unit to a desired angle,
The panning unit includes:
A panning worm wheel fixed to an upper end of the fixed cylinder;
A panning worm which mates with the panning worm wheel;
A worm holder supporting the panning worm rotatably, the worm holder being fixed inside the panning structure; And
And a panning motor that pivotally rotates the panning worm to allow the panning structure to perform panning motion with the fixed cylinder as a central axis,
When the panning motor is driven,
Wherein the panning worm rotates the panning worm wheel with the panning worm wheel at the center thereof in response to a reaction force. The method according to claim 1,
The light-
A condensing case of a constant diameter;
A main mirror installed in the light-collecting case, receiving sunlight to reflect and condense the light, and having a center hole at the center thereof;
A sub-mirror facing the main mirror and reflecting the light condensed by the main mirror to pass through the center hole; And
And a light-projecting cover for covering the upper space of the main mirror by covering the light-collecting case with the minor diameter at the center thereof. 3. The method of claim 2,
The reflecting plate reflects the condensed light passing through the center hole and guides the reflected light to the optical path. The reflecting plate has a rotation axis on both sides thereof,
Wherein the tilting case has a support frame rotatably supporting the rotation axis of the reflection plate and an angle adjusting unit installed on the support frame to adjust the angle of the mirror. delete The method according to claim 1,
And a light-permeable sealer for shielding the center hole or the light passage and allowing the condensed light to pass therethrough is further provided in the center hole of the light-collecting portion or the light passage in the panning structure. 6. The method of claim 5,
The light-
A quartz plate through which the condensed light passes; And
And a holder for accommodating the quartz plate therein. delete delete

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