US20130248696A1

US20130248696A1 - Sunlight collection structure, multi light collection method, and sunlight transmission device

Info

Publication number: US20130248696A1
Application number: US13/990,037
Authority: US
Inventors: Ki Ho Hong
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-27
Filing date: 2011-11-15
Publication date: 2013-09-26
Also published as: ES2881294T3; JP6204944B2; EP2645011B1; KR20120058701A; WO2012070799A3; JP2015222167A; KR101313723B1; US10416361B2; CN103403470A; US20170363782A1; WO2012070799A2; EP2645011A4; CN105588341A; EP2645011A2; JP2014509434A; CN105588341B

Abstract

The present invention relates to a method for collecting sunlight through an image method by tracking the sun using a dish-shaped light collector or a paraboloidal light collector and, and to a method and an apparatus for transmitting high-density light as the collected sunlight to a remote place, to which the light is applied, and for generating super-high-density light by combining, in a multi-stage manner, the high-density light obtained through a plurality of light collectors. A first concave-paraboloidal reflector of a paraboloidal light collection unit can collect light, transmit the collected light to the remote place, and provide an efficient and quantitative use environment to an applied device by using a paraboloidal reflector set including: a first concave-paraboloidal mirror in which a slope of a paraboloide is provided to make a narrow width so that downward reflection is greater than or equal to 90% by an angle between an incident angle at an inner point of a paraboloidal mirror and a normal surface, the angle being larger than a critical angle, and which has an opening formed at the lower side of a central axis thereof; and a second convex-paraboloidal reflector, which has a small diameter, shares a focus of the first concave-paraboloidal mirror, and has a miniaturized shape of the first concave-paraboloidal mirror at a focal portion without an opening at a central axis thereof.

Description

TECHNICAL FIELD

The present invention relates to a method and structure for collecting sunlight that form a parallel beam by collection sunlight of a natural state in a high density using a paraboloidal reflector, and light transmitting technology of concentrating high density light in a super high density by combining in a multistage manner and transmitting sunlight collected in a super high density to a remote place, and checking and selectively adjusting a quantity of sunlight of a super high density and transmitting the sunlight with high efficiency while blocking, separating, and combining the sunlight.

BACKGROUND ART

US Patent Laid-Open Publication No. 2008-0092877 relates to a method of collecting sunlight at a focus using a fresnel lens, reflecting the sunlight to a plane reflector, reflecting the sunlight downward to a central funnel type reflector, collecting the sunlight, and transmitting the sunlight to a transmitting pipe, but when plane reflected light is applied to a funnel type (cone type) downward reflector, light is radially reflected and thus parallel light is not formed and collected, whereby even if light is returned to the pipe, the light becomes diffused reflection light, and when light is transmitted to a remote place, much transmission loss occurs, and particularly, when light passes through a joint portion or a bending portion, much light loss occurs and thus the method has very bad transmitting efficiency and cannot transmit intended light.
Korean Patent Laid-Open Publication No. 1983-0009444,
Korean Patent Laid-Open Publication No. 1989-000905, and Korean Patent Laid-Open Publication No. 1988-058282 relates to a method of collecting light using a convex lens and transmitting the light to an optical fiber, and as chromatic aberration and diffused reflection occur, transmitting efficiency is very bad, and thus the method cannot transmit high density light to a remote place.
Korean Patent Laid-Open Publication No. 10-2003-0027529 relates to a method of forming a small module with a plurality of small dish type reflectors, a second reflector provided at a periphery of a focus of each reflector, each second reflector, and an optical fiber bundle formed with optical fibers disposed directly under the each second reflector and for applying collected sunlight and transmitting sunlight to a far separated absorber using the optical fibers and performing thermal conversion of the sunlight, and in this time, because light of wave lengths in a ultraviolet ray area and a far infrared ray area is absorbed to the optical fiber, thermal efficiency is not good, and while transmitting the sunlight, a loss by diffused reflection occurs in a bending portion of a transmission pipe and thus transmitting efficiency is not good.

DISCLOSURE

Technical Problem

The present invention is made to overcome the above mentioned problems, and it is an object of the present invention to develop collecting technology and transmitting technology in order to highly concentrate sunlight and to transmit the sunlight to a super remote place; to minimize a loss of sunlight while preventing a heat from occurring in parts to which sunlight is applied when collecting sunlight using a paraboloidal reflector; to improve transmitting efficiency in order to transmit sunlight of an entire wave length area to a remote place; and to simplify a structure of a product and to improve weather resistance in order to easily perform mass production and maintenance.
Another object of the present invention is to reduce a light loss and to improve light collecting efficiency in order to obtain a transmitting rate of high efficiency; and to form sunlight in super concentration by combining sunlight in a multistage manner and to improve light collecting and transmitting efficiency.
Another object of the present invention is to combine diffused reflected sunlight in high concentration.

Technical Solution

To achieve the above objects, in order to enable parts for reflecting applied sunlight to perform total reflection, a gradient of a reflector is changed to an applied angle to be larger than a threshold angle, an aspheric reflector is formed in two layers, and by forming a reflecting path that passes through a through-hole in a lower portion, applied parallel light is formed in parallel concentration light.
By enabling parts that receive sunlight of a high temperature for a long time to perform total reflection, an absorption heat of light is prevented from being transferred to the parts, and in order to prevent a foreign substance from be stacked at an inlet of a first reflector, the inlet of the first reflector is formed with a transparent protective film.
Further, when collecting sunlight, sunlight can be transmitted as parallel light even at a flexure segment by a joint for minimizing the flexure segment, and at a segment of a predetermined distance or more, and by installing an alignment device for aligning transmitting light to parallel light, even if sunlight is transmitted to a super remote place, a loss of sunlight is minimized and thus transmitting efficiency is maximized.
By detecting a light quantity of sunlight with a filtering valve system at a necessary segment, a transmission amount is adjusted, light can be dispersed with a filtering valve on a wave length basis, and a use amount of sunlight in an absorber or a reacting path can be adjusted.
Hereinafter, a core principle of the present invention will be described.
Referred to FIG. 9, a first paraboloidal reflector 100 and a second paraboloidal reflector 200 sharing a focus F with the first paraboloidal reflector 100 exist, and when two applied light vertically applied to the paraboloidal reflectors are AB and DC, respectively and when a transmission line thereof is BA′ and CD′, if the two applied light and the transmission line are parallel, by an optical principle of a paraboloid,
applied light AB applied to the first paraboloidal reflector is reflected to F, and
applied light DC applied to the second paraboloidal reflector is reflected to F.
In this case,
<ABF=<DCF=k {circle around (1)}
Further, when a virtual image focus of F is F′, AA′ is parallel to DD′.
−D′CF′=<A′BF′=k {circle around (2)}
by Equation {circle around (1)} and {circle around (2)},
AB is parallel to CD′.
That is, applied light AB vertically applied to the first paraboloidal reflector 100 and light CD′ reflected by the second paraboloidal reflector 200 become parallel light.
Further, when a line vertical to a circumscribed surface at a point B is MM′, an applied angle <ABM is k/2, and in this case, when an angle k/2 is larger than a threshold angle, total reflection is performed.
When an outer edge segment of the first paraboloidal reflector, which is a substantial collection area is W, an internal segment covered by the second paraboloidal reflector is V, and when a lower opening of the first paraboloidal reflector is S,
S=V and W>V, and in this case, a light collection area ratio is largest.
In an exemplary embodiment of the present invention,
as shown in FIG. 9, in a first paraboloidal reflector in which <ABM is smaller than a threshold angle, in order to advance reflected light downward, the second paraboloidal reflector should be formed in a upward convex form.

Advantageous Effects

As described above, when collecting sunlight into parallel sunlight using the paraboloidal reflector, and when transmitting the sunlight using a light pipe, by forming an applied angle to be larger than a threshold angle, total reflection can occur and thus a heat does not occur in parts to which sunlight is applied and a loss of sunlight does not occur, whereby sunlight can be effectively collected and transmitted.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 illustrates a total reflection threshold angle optical principle.

FIG. 2 is a perspective view illustrating an assembled complete light collection structure according to an exemplary embodiment of the present invention.

FIG. 3 is a perspective view illustrating an example of a multi light collection structure according to an exemplary embodiment of the present invention.

FIG. 4 illustrates a structure of a transmission pipe combination condenser and an applied light collection principle according to an exemplary embodiment of the present invention.

FIG. 5 is a partial enlarged view illustrating a structure of a wide width combination condenser and an applied light collection principle according to an exemplary embodiment of the present invention.

FIG. 6 is a perspective view illustrating a total reflection joint according to an exemplary embodiment of the present invention.

FIG. 7 illustrates a total reflection joint according to an exemplary embodiment of the present invention.

FIG. 8 illustrates a transmission pipe combination condenser set according to an exemplary embodiment of the present invention.

FIG. 9 is a diagram illustrating an optical principle according to an exemplary embodiment of the present invention.

BEST MODES FOR CARRYING OUT THE INVENTION

Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the drawings.
The present invention includes a paraboloidal reflector 1 for receiving and collecting sunlight;
a light transmitting pipe 2 for transferring sunlight to another location; and
a sunlight collecting unit 3 for collecting sunlight at one location with a plurality of light transmitting pipes 2 and for forming the sunlight into one light.
When sunlight is reflected to the paraboloidal reflector 1, by maintaining an applied angle to be larger than a threshold angle at a contact point, a paraboloid is formed to occur total reflection, and in a lower portion of the paraboloidal reflector 1, a second aspheric reflector 15 for reflecting again reflected sunlight and transferring the sunlight to the light transmitting pipe 2 is formed.
The second aspheric reflector 15 shares a focus with the paraboloidal reflector 1, has a reduced form, and reflects sunlight downward, when sunlight is applied to a lower side surface of the paraboloidal reflector 1, and by forming an applied angle to be larger than a threshold angle, total reflection occurs, and thus a heat does not occur at the second aspheric reflector 15, whereby deformation and loss does not occur at the second aspheric reflector 15.
Further, in an upper end portion of the paraboloidal reflector 1, a transparent body 5 formed with glass or a synthetic resin is mounted to prevent rainwater, dust, or a foreign substance from being injected to the inside and thus sunlight can be effectively collected.
Sunlight is transmitted to a remote place through the light transmitting pipe 2, and in a bending portion and a joint portion of the light transmitting pipe 2, two reflectors 6 are mounted to enable an applied angle of sunlight to be larger than a threshold angle and thus total reflection occurs, whereby a heat does not occur in the reflector 6 and a thermal loss is prevented.
In the light transmitting pipe 2, a joint 7 is formed, the light transmitting pipe 2 can freely rotate, and in an upper end portion of the joint 7, a bending portion 8 is formed, and in the bending portion 8, two reflectors 9 are mounted to form an applied angle to be larger than a threshold angle and thus total reflection occurs, and the bending portion 8 can rotate, and in a lower portion of the bending portion 8, a connection pipe 10 is formed.
The connection pipe 10 can change a direction while rotating.
When a plurality of joints 7 are connected, sunlight can be transmitted in a vertical and lateral direction.
At one side of the light transmitting pipe 2, the sunlight block valve 20 is installed, and thus when sunlight is unnecessary, by closing the sunlight block valve 20, sunlight is not passed through.
The sunlight block valve 20 is mounted across the light transmitting pipe 2, and at one side thereof, a motor 21 is formed, and by forming a penetration pipe 22 and a block plate 23 adjacent to the motor 21, while the sunlight block valve 20 laterally moves by the motor, the sunlight block valve 20 passes through or blocks sunlight.
Further, by mounting a sunlight sensor unit 24 at one side of the sunlight block valve 20, the sunlight sensor unit 24 determines whether sunlight passes through, and when a work is performed, the sunlight sensor unit 24 can recognize the work.
In order to collect sunlight collected by two or more paraboloidal reflectors 1 at one location through the light transmitting pipe 2, the sunlight collecting unit 3 is mounted in an intermediate portion.
In order to achieve the above object, in the sunlight collecting unit 3, in order to enable parts for reflecting applied sunlight to perform total reflection, a structure of the parts is formed so that an applied angle is larger than a threshold angle,
By enabling parts that receive sunlight of a high temperature for a long time to perform total reflection, a heat is not transferred to the parts, and in order to prevent a thermal loss, in order to maintain an applied angle to be larger than a threshold angle, a paraboloid is formed, and at the inside that shares a focus, the second aspheric reflector 15 is mounted, and at the central part side of the narrowing inside, a focus is shared and thus sunlight advances in one side direction.
The transmitting pipe combining light collecting device 3 is a device for collecting sunlight separated into several sunlight at one location and integrating to one light and may be installed in several pieces.
When only one paraboloidal reflector 1 is used, the transmitting pipe combining light collecting device 3 is unnecessary, and when two or more paraboloidal reflectors 1 are used, by connecting the two or more paraboloidal reflectors 1, the transmitting pipe combining light collecting device 3 collects sunlight.
As shown in a cross-sectional view of the transmitting pipe combining light collecting device of FIG. 5,
a connection portion 40 is formed integrally with the transmitting pipe combining light collecting device 3, and in order to a portion connected to the transmitting pipe combining light collecting device 3 to perform total reflection, the connection portion 40 enables a region having a slope of a contact point in which sunlight applied to a paraboloid reflects downward to exceed 90%.
Therefore, even when diffused reflection is applied to the transmitting pipe combining light collecting device 3, diffused reflection is emitted to a lower reflection port.
Further, FIG. 5 is a diagram illustrating a configuration of an entire network that collects sunlight using a condenser of the present invention and that transmits and uses sunlight to a remote place using a light pipe and an optical fiber, and the network is a system that can exchange sunlight between countries as well as a local area.

MODES FOR CARRYING OUT THE INVENTION

Hereinafter, solving means of the present invention will be described in detail.
A paraboloid having a rapid second function value is formed so that a segment in which a tangent slope of a paraboloid of a first concave paraboloidal reflector is more than 40° becomes 90% or more, the first concave paraboloidal reflector has an opening in a lower portion of a focus, and a paraboloid condenser cell by coupling the first concave paraboloidal reflector and a wedge-shaped small second convex paraboloidal reflector formed in a lower portion of the inside of the first concave paraboloidal reflector while sharing the same focus is formed, a light pipe and light pipe elbow are coupled to a lower opening of a first condenser cell, the light pipe elbow forms a polygonal specular surface to emit light in one side direction, and a plurality of plane reflectors are coupled to a specular surface of a flexure portion, and by attaching a light pipe elbow for coupling a plurality of reflectors for reflecting sunlight in an applied angle and a light emitting angle larger than 45°, a condenser cell is formed.
the condenser cell forms a cover, and by transparently forming the cover, contamination of a reflector is prevented.
In an exemplary embodiment, a first concave aspheric reflector and a second convex aspheric reflector are transparently integrally formed, and by shaping the second convex aspheric reflector in a hole form in an upper portion, the second convex aspheric reflector can be easily produced at one time, and in this case, in portions, except for a portion under a focus, parallel light, diffused reflection light, or entire applied light performs total reflection and is thus reflected to a lower light emitting port,
In this case, when metal reflection coating is performed in the second convex aspheric reflector formed alone at the center, reflected light under a focus is reflected to the light emitting port and thus light collecting efficiency is enhanced.
As a means for super highly concentrating concentration light by combining in multiple each concentration light collected at the condenser cells, a method of connecting a light applying elbow of a pipe condenser and a lower light pipe elbow of each condenser cell with a light transmitting pipe is performed.
A light pipe, which is a transmitting means uses a hollow pipe shape and is made of glass or a metal, an inner surface thereof is processed to have gloss, and a light pipe that enhances a reflectivity by coating a reflector to a transparent pipe with a mirror processing is used, and a common glass fiber or an optical fiber of a synthetic resin material is used.
A hollow multi pipe formed with at least twofold clothes may be used, and by forming an inside pipe to have a refractive index larger than that of an outside pipe, total reflection easily occurs.
Particularly, a heat withdrawal system light pipe is a light pipe in which a first pipe at innermost of a multi pipe is a hollow pipe and in which a second pipe is formed at an outer edge of the first pipe, and the light pipe is formed by filling a liquid between the inside first pipe and the outside second pipe and exchanges a heat by absorbing a heat lost when transmitting light.
As shown in FIG. 3, in a light pipe condenser, at the outside, a first paraboloidal reflector forms a paraboloid having a second function value with a steep slope, an opening is formed in a direct lower portion adjacent to a focus of the paraboloid, i.e., a focus of a paraboloid is positioned between an upper point and a lower point of an upper opening, is formed at a distance adjacent to the lower point, and does not exceed 50 mm from the lower point, and the second convex paraboloidal reflector is formed not to overpass a diameter width of 30 mm while sharing the focus, a cover is formed in an upper opening of the first concave paraboloidal reflector, and at the cover, a plurality of pipe holes that can insert and attach a light pipe are formed, and at a central axis of the cover, the second convex paraboloidal reflector is coupled and attached to the support.
The second convex paraboloidal reflector is characterized by screw combining to the support coupled and attached to a cover and adjusting a focus position of the second convex paraboloidal reflector and the first concave paraboloidal reflector by adjusting a screw,
[FIG. 13A] is a cross-sectional view of a light pipe.
As an optical transmission means, a light pipe is made of a metal, glass, or an optical fiber, and at a cover of the glass pipe, a reflective glass pipe coated with a reflector may be used, and in a multiple glass pipe, a medium having a high refractive index is used for an inside pipe of the inside pipe and an outside pipe, and thus this is similar to a state in which a pupil is formed at an inside core of an optical fiber.
FIG. 13B is a cross-sectional view of a multi-pipe, and in another exemplary embodiment, space is formed between an inside pipe and an outside pipe with a multi-pipe, and the multi-pipe is formed by filling a solvent at this space, and as a solvent absorbs an optical loss heat while transmitting, an additional waste heat withdrawal system that absorbs a heat of a solvent and that exchanges the heat is provided, and an inside light pipe is made of a dense material, and a medium of a solvent that encloses the light pipe is thin, and thus light is transmitted by total reflection.
FIG. 14 illustrates a light pipe joint of the present invention.
Further, first, second, third, fourth, and fifth pipes 220, 230, 240, 250, and 260 for transmitting the sunlight 10 have reflective optical paths, respectively and individually perform a rotation motion at a position of a horizontal axis and a vertical axis.
That is, an elbow 210 for connecting the first, second, third, fourth, and fifth pipes 220, 230, 240, 250, and 260 is fixed, but the first, second, third, fourth, and fifth pipes 220, 230, 240, 250, and 260 horizontally and vertically connected about each elbow 210 can perform a vertical and lateral rotation.
In this way, a light transmitting pipe 200 has a rotation bending portion, and the light transmitting pipe 200 having multiple rotation bending portions at a connection portion thereof connects two or more of the elbow 210, i.e., a rotation bending portion at every predetermined distance upon a remote place piping, and each elbow 210 mounts a reflector 130 at a bent corner, and an applied angle and a reflection angle of the reflector 130 are installed to correspond to a central axis of the elbow 210, and by continuously installing a plurality of elbows, as needed, the light transmitting pipe 200 that can increase flexibility, absorptiveness of a displacement, and buffering power is a rotation bending pipe.
This is characterized by transmitting sunlight in all directions or in an extensile and contractile direction of a pipe by providing flexibility and absorptiveness of a displacement to the light transmitting pipe 200, when inducing sunlight 10 transmitted as high density parallel light that maintains linearity to a remote place, even if sunlight is moved by the light transmitting pipe 200.
Here, the reason of providing flexibility and absorptiveness of a displacement to the light transmitting pipe 200 is to limit an angle range to an angle within 45° while giving a reflection angle of two times to a reflected light path of sunlight that maintains linearity in order to provide flexibility and absorptiveness of a displacement to the light transmitting pipe 200, when inducing sunlight 10 transmitted as high density parallel light that maintains linearity to a remote place by moving by the light transmitting pipe 200 for transmitting sunlight 10 through the first, second, third, fourth, and fifth pipes 220, 230, 240, 250, and 260 formed in a condenser 400.
That is, by giving a reflection angle of two times to a light transmitting pipe for collecting and transmitting sunlight of the present invention, i.e., by giving a first reflection angle of 22.5° and giving again a second reflection angle of 22.5°, sunlight is reflected to the outside to an angle within entire 45° and thus total reflection of sunlight occurs.

INDUSTRIAL APPLICABILITY

Sunlight of a natural state can be collected to a desired density, and highly collected sunlight can be transmitted to a remote place, and this provides many application fields, and by transmitting sunlight while forming a network to a short distance and a remote place, natural lighting can be performed to a shadow location within a building or a deep location of underground, and when light is collected with a center concentration method and thermal conversion is performed, solar thermal power generation can be performed using a high temperature heat, and sunlight as a thermal energy source can be used in an industrial blast furnace and be applied to a heat for a chemical reaction process, i.e., the present invention can be applied to various fields.
10: small paraboloidal reflector set
20: sunlight block valve
21: light transmitting pipe multi-insertion structure
30: three-stage total reflection elbow
31: light transmitting pipe
40: light transmitting pipe buffer joint
50: transmitting pipe sunlight collecting device example
100: first concave paraboloidal reflector
200: second convex paraboloidal reflector

Claims

1. A device, comprising:

a first condenser cell for facing sunlight;

a light pipe condenser for concentrating sunlight into one by connecting sunlight collected at the first condenser cell with a light pipe and for emitting sunlight into one by combining and concentrating applied light by connecting a plurality of applied light with a light pipe;

a transmission pipe for transmitting high concentrated light emitted from a lower opening of the light pipe condenser to the outside;

a condenser module for fixing first condensers and the light pipe condenser and for forming a structure by coupling a frame to a support on the ground with a two-axis driving joint, wherein the frame is driven to track sun by fastening to the structure in order to maintain a load and a mold; and

a light valve filter for combining and highly concentrating highly collected light emitted from each condenser module with the light pipe condenser by forming the condenser modules in a group and for transmitting high concentrated light emitted downward of the light pipe condenser to a use location of a long distance with a light pipe and for installing a light valve at one end of a transmitting line and for blocking light and filtering a specific wave length.

2. The device of claim 1, further comprising:

a first concave paraboloidal reflector that forms a paraboloid having a rapid second function value in which a segment in which a tangent slope of a paraboloid of a first concave paraboloidal reflector is more than 40° maintains to 90% or more and that has an opening at a lower potion of a focus;

a wedge-shaped small second convex paraboloidal reflector that shares the same focus with the first concave paraboloidal reflector and that is formed in an inside lower opening of the first concave paraboloidal reflector; and

a paraboloid condenser cell that couples the first concave paraboloidal reflector and the second convex paraboloidal reflector.

3. The device of claim 1, wherein

a paraboloid of the first concave paraboloidal reflector is formed in a shaping structure of a transparent body,

the second convex paraboloidal reflector is formed alone in an upper portion, and

the first concave paraboloidal reflector and the second convex paraboloidal reflector are integrally formed.

4. The device of claim 1, wherein

a light pipe and a light pipe elbow are coupled to a lower opening of the first condenser cell,

the light pipe elbow forms a polygonal specular surface to emit light in one side direction, couples a plurality of plane reflectors to a specular surface of a flexure portion, and

a condenser cell is formed by attaching a light pipe elbow that couples a plurality of reflectors for reflecting light while an applied angle and a light emitting angle each form an angle more than 45°.

5. The device of claim 1, wherein the transmitting pipe, which is a light transmitting means has a hollow pipe shape, is made of glass or a metal, and has an inner surface in which a gross processing is performed,

the transmitting pipe has an enhanced reflectivity by applying a reflector to a transparent pipe with a mirror processing, and

a common glass fiber or an optical fiber made of a synthetic resin is used.

6. The device of claim 1, wherein a hollow multiple pipe formed with at least twofold clothes is used as the light pipe, and an internal pipe of the multiple pipe has a refractive index larger than that of an external pipe thereof to easily perform total reflection.

7. A device, wherein at the outside of a light pipe condenser, a first paraboloidal reflector forms a paraboloid having a second function value of a steep slope, in a direct lower potion adjacent to a focus of the paraboloid, an opening is formed, and the focus of the paraboloid is positioned between an upper point and a lower point of an upper opening and is formed in a distance adjacent to the lower point and does not exceed 50 mm from the lower point,

a second convex paraboloidal reflector has a diameter width that does not exceed 30 mm while sharing the focus with the first paraboloidal reflector,

the light pipe condenser has a cover in an upper opening of the first concave paraboloidal reflector, wherein the cover has a plurality of pipe holes that can inset and attach a light pipe, and

at a central axis of the cover, the second convex paraboloidal reflector is coupled and attached to a support, and

the second convex paraboloidal reflector is screw-coupled to the support coupled and attached to the cover, and a focus position of the second convex paraboloidal reflector and the first concave paraboloidal reflector is adjusted by adjusting a screw.

8. A device, comprising:

first, second, third, fourth, and fifth pipes which are a light pipe joint and for transmitting sunlight and for performing an individual rotation motion at a position of a horizontal axis and a vertical axis while having a reflective optical path; and

an elbow for connecting the first, second, third, fourth, and fifth pipes,

wherein the elbow is fixed, but the first, second, third, fourth, and fifth pipe are horizontally and vertically connected about the respective elbows, can perform a vertical and lateral rotation motion, and provides two reflection angles to a light transmitting pipe for collecting and transmitting sunlight, wherein a first reflection angle is 22.5°, and a second reflection angle is 22.5°, and

the first, second, third, fourth, and fifth pipes emit the sunlight to the outside in an entire angle within 45° to perform total reflection.

9. The device of claim 8, further comprising:

a sunlight block valve installed at one side of the light transmitting pipe to prevent sunlight from passing through by closing, when sunlight is unnecessary, wherein the sunlight block valve is mounted across the light transmitting pipe, has a motor at one side, has a penetration pipe and an interception plate continuously installed thereto, and passes through or blocks sunlight while laterally moving by the motor; and

a sunlight sensor unit mounted at one side of the sunlight block valve and for determining whether sunlight passes through, wherein the sunlight sensor unit recognizes a work, when the work performs.