KR20130024689A - An elliptical mirror optic condensing guide - Google Patents

Abstract

PURPOSE: An elliptical mirror focusing optical guide is provided to maximize optical energy usage efficiency and to have a simple structure. CONSTITUTION: A unit elliptical optical module(10) is formed in an array after reflecting an incident light from an elliptical body. An optical guide body(20) mounts, attaches, or supports the unit elliptical optical module. An incident optical unit(30) makes light incident into the unit elliptical optical module.

Description

An elliptical mirror optic condensing guide

The present invention relates to a focused light guide using an ellipsoidal mirror.

In general, a method of using solar energy, which is a form of light, uses solar power generation, a solar heat collecting tube, or a heat collecting plate that generates electricity through a solar cell, and absorbs solar heat and uses it for hot water production or heating. Light natural light module or reflector using the light or plant growth or photocatalyst, or sunlight natural light to natural light.

As is well known, in order to make full use of solar energy, which is a form of light, the solar light must be efficiently collected and various solar light concentrating devices are used for this purpose. Whatever the use of natural light, it is directly related to the efficiency of solar energy.

Photovoltaic concentrators include point-focus dish types, point-focus Fresnel lens types, linear-focus Fresnel lens types, and Helios. It is divided into Tet type (heliostat type), Gregorian / Casegrain condensing system, condensing using holographic prism sheet, and many other methods are known. Ultimately, various optical systems combining condensing lenses and condensing mirrors are used. Since these optical systems are usually based on the fact that sunlight is incident in parallel, the optical system tracks the angles that change with time according to changes in the altitude and azimuth angle of the sun (or more precisely according to the rotation and rotation of the earth). To be mounted on the

Conventional photovoltaic concentrator and solar tracking / tracking device described above are generally inevitable to increase the size of the solar light concentrator and the trailing device in order to increase the amount of power generation / solar heat collection / photovoltaic natural light of the solar power generation facility. There are many constraints in terms of cost and structure in manufacturing, so it is very difficult to expect economical investment.

Therefore, the optical system improves solar energy efficiency through condensing, secures economical investment against important investments, and is a thin, technical alternative to flat panel condensing for easy integration into the building envelope. Optics: Planar Condensing Optics and, ultimately, technical alternatives to prevent the optics from rotating by the solar tumbler.

However, although there are many known light guides for efficiently collecting light regardless of artificial light or natural light, the sun tracking device up to a predetermined angle may be used to reduce the manufacturing cost by reducing the accuracy of flat panel light collecting or solar tracking devices. Even if it is not rotated by, there have been many problems in efficiently condensing and it is necessary to reduce the light loss with an improved structure to condense the light incident from various angles without chasing.

Among several key issues, the Applicant first of all proposes a prism light guide and a method of using the same as a technical alternative to flat plate condensation (10-2010- 0033054, First Application 1), a prism wave guide and a method of using the same (10-2010). 0038215, First Application 2), Lens Integrated Prism Optical Guide and Method of Using the Same (10-2010- 0042311, First Application 3), Channel Prism Optical Guide (10-2010- 0043240, First Application 4), Hybrid Mining and Transmitter (10) -2010- 0077534, First Application 5), Side Solar Concentrator (10- 2010- 0004153, First Application 6), Prism Hybrid Solar Concentrator (10- 2010-0006250, First Application 7), Prism Solar Concentrator (10- 2010- 0006756 , Patent Application No. 8), a double-sided prism condenser and a method of using the same (10-2010-0035035, Application No. 9), an optical guide device having a plurality of channels (Patent 10-2010- 0115051, Patent Application No. 10) To ease the precision of the hopping device In order to reduce the manufacturing cost, he has applied for a semi-spherical light lens (pre-application 11) having different refractive index layers, which is a new light lens that can efficiently collect light even if it is not rotated by a solar chase device up to a predetermined angle. Application is not published).

However, although technical structural alternatives to flat and non-collective light are presented, the issue of durability against the cost of manufacturing is becoming a big issue, and the manufacturing method and manufacturing to secure 20-year durability in the harsh environment of the sun Since the material is limited, the combination of the unit optical system to be employed in the light guide and its manufacturing method need to be further improved.

For example, the optical element of glass material is an optimal optical material as a material having very high precision, high thermal durability, and very strong against UV rays of the sun, but it is well known that there is a practical limitation in the manufacturing of the high precision glass mold. Is true. Although transparent materials such as acrylic and polycarbonate, which have appeared as alternatives, have been used as fabrication materials for optical elements up to the solar light utilization area, since plastic-based optical materials have recently been unable to guarantee 20-year durability against rough UV rays. It is being replaced by silicon-based silicon (Silicone), because of 1 Sun environment (normal Sun's direct solar radiation is 1 Sun, and its double solar intensity is 2 Sun. This term is used to express the solar density focused by using 20% durability of the primary focusing lens using silicon, and the material itself has the formability which is an advantage of plastic that is easier than glass. This is because it is very resistant to heat and has a long service life.

However, even in the case of silicon, 20-year durability has been proven for primary focusing purposes, which primarily receives 1 Sun and refracts only in a specific direction, so that the focused light is collimated secondly or induces the focused light again. The optical system that receives light of more than Sun is practically impossible to apply a silicon material other than glass or mirror.

As a result, a condensing optical system using a mirror such as Casegrain / Gregorian, which can process the focused light while using a silicon material, is used.However, if a second mirror is placed on the incident surface side of the light, focusing loss is generated by the area. When the primary focusing lens lens system is used, when a variety of mirror optical systems such as casein / gregorian, parabolic mirror, and freonel mirror, which can be used as collimators, are reversed, There was a problem in that the parallel light focusing ratio generated due to the spreading of the focusing ratio again to generate parallel light was not easy to manufacture.

More specifically, the problems of the prior art will be described with reference to FIGS. 12 and 13 as follows. 12 and 13 are FIGS. 2 and 7 of the above-mentioned prior application 7, respectively, and FIG. 12 is a cross-sectional view showing the structure of a collector using a prism light guide as a solar collector of the prior art, and FIG. 13 is a solar light of the prior art. It is sectional drawing which shows the structure of the condenser which uses the Gregorian condensing module as a condenser.

As shown in FIG. 12, the prism light collector 1a according to the first conventional technology is located at the light collecting portion 20a and the upper and lower ends of the light collecting portion 20a, respectively, and transmits light from the light collecting portion 20a. It consists of upper and lower prism sheets 30a and 30b made of a transparent material which receives and condenses.

In this case, a plurality of convex condenser lenses 21a having convex round cross-sections are arranged on the upper surface of the condenser 20a, and the linear back light guide portion 22 is disposed on the lower surface of the condensing lens 21a to correspond to the convex condenser lens 21a. Is formed.

In addition, the linear back light guide part 22 is formed so that the optical focus of the convex condenser lens 21a is located inside or under the rear surface, and the sunlight incident on the convex condenser lens 21a is linear back light formed in the longitudinal direction. Inside the guide portion 22 one long linear focal line is formed in the longitudinal direction.

Therefore, the sunlight incident on the light collecting portion 20a having a large area is divided by each convex condensing lens 21a and condensed respectively, and is primarily focused on a corresponding focal line formed per one convex condensing lens 21a.

In addition, the horizontal reflecting portion 41h formed on the lower prism sheet 30b is formed to correspond to the linear back light guide portion 22 of the convex condenser lens 21a one-to-one and receives the incident primary focusing sunlight 11b. / Total reflection to the right side.

On the other hand, the horizontal reflecting portion 41h 'formed on the upper prism sheet 30a is reflected from the lower prism sheet 30b toward the upper prism sheet 30a by the vertical reflecting portion 41v formed on the lower prism sheet 30b. That is, formed at the boundary 23a of the convex condenser lens 21a, the incident primary focusing sunlight 11b is reflected to the left and right sides.

In addition, the lower prism sheet 30b is formed with a 'V'-shaped vertical reflecting portion 41v at a position corresponding to the portion of the boundary 23a of the adjacent convex condenser lens 21a. As both ends form a right isosceles triangle, a boundary between a dense medium (lower prism sheet) and a small medium (air) is formed, and the primary focused solar light transmitted from the horizontal reflectors 41h on both sides is a total reflection principle. The first condensed sunlight 11b, which is turned 90 ° to the top and turned 90 ° to the top, has a width t of twice the thickness t of the lower prism sheet 30b. Through the boundary 23a portion of the convex condenser lens 21a, total reflection is performed to the horizontal reflecting portion 41h 'formed on the upper prism sheet 30a.

Then, the collected primary focused solar light passes through the lower prism sheet 30b to reach a solar cell (not shown) or a solar energy utilizing device not shown.

However, since the horizontal reflecting portion 41h and the vertical reflecting portion 41v focus and reflect the same amount of light in a reduced area 100 times compared to the condensing portion 21a such as the upper convex lens or Fresnel lens, for example. Since the solar light density is about 100 times, when the prism is made of silicon, there is a problem in that yellowing may proceed rapidly.

Of course, it is also possible to use a reflecting mirror instead of the prism, but this causes an additional problem that the reflective mirror must be attached to each other or the mirror should be partially mirrored only on the reflective surface. Partial mirror coatings are complex and costly.

Further, as shown in FIG. 13, the prism light collector 1e according to the second conventional technology includes a light collecting part 20e in which a plurality of Gregorian light collecting modules 21e are arranged in a straight line, and a Gregorian light collecting module 21e. And upper and lower prism sheets 30a and 30b made of a transparent material that receives and condenses the primary focused solar light.

The Gregorian condensing module 21e includes a linear Gregorian main reflection mirror 21e2 and a linear Gregorian sub-reflection mirror 21e1, and the sunlight incident in parallel to the linear Gregorian main reflection mirror 21e2 is linear. The Gregorian primary reflection mirror 21e2 focuses and reflects the linear Gregorian secondary reflection mirror 21e1 provided at the rear end of the focal point, and the linear Gregorian secondary reflection mirror 21e1 is located at the center of the linear Gregorian primary reflection mirror 21e2. Reflected back to the formed linear back slit 21e3, a reflective layer is formed on the outer circumferential surface of the linear casee grains main reflection mirror 21d2. Since the progress and focus of the solar light is the same as the fourth embodiment described above.

The light collecting portion 20e formed by the arrangement of the plurality of Gregorian light collecting modules 21e is made of a transparent material and has a reflective layer on the inner circumferential surface or the outer circumferential surface to form a concave mirror, or aluminum injection molding or polishing the surface like a mirror. A stainless thin plate may be formed by pressing the mold, and a boundary of the Gregorian condensing module 21e may be cut to form a light guide tool (not shown) to allow light to pass therethrough.

However, in the case of the second prior art, the linear Gregorian main reflection mirror 21e2 and the linear Gregorian sub-reflection mirror 21e1 should be mirror-coated, so that two coatings are required and furthermore, the linear Gregory In the case of the eye reflection mirror 21e1, only a part thereof needs to be coated, and if the coating method is complicated, a large cost is required. Additionally, about 5% of light loss occurs in the portion of the linear Gregorian sub-reflective mirror 21e1.

Republic of Korea Patent Registration 10-2010-6250

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems in view of the prior art as described above, and has a main object to provide a condensed light guide device using an ellipsoidal mirror having a simple mirror-like coating as a whole.

An ellipsoidal focusing light guide according to the present invention comprises: a unit ellipsoidal optical module formed in an arrangement in which incident light from the outside passes through the inside of the ellipsoid to be focused on one side, and is then reflected by the ellipsoidal surface and focused; An optical guide body for mounting, attaching, and supporting the unit ellipsoidal optical module; And incident optical means for injecting light into the unit ellipsoidal optical module; And a control unit.

Preferably, the unit ellipsoid optical module includes at least one optical ellipsoid formed as part of an ellipsoid.

More preferably, the unit ellipsoid optical module comprises two or more first and second optical ellipsoids E ₁ and E ₂ , wherein the first and second optical ellipsoids E ₁ and E ₂ are It is characterized in that the position of any one of the focus of each of the focal point is arranged to match.

Most preferably, the inside of the optical ellipsoid is characterized in that the mirror coating is applied only to the portion where the incident light is reflected.

Also preferably, the unit ellipsoidal optical module may include an incidence portion formed by opening one or a plurality of openings or openings in selected portions of the ellipsoid to allow light from the outside to enter the ellipsoid; And an emission unit having a center thereof positioned on an extension line of a straight line connecting both focal points of the ellipsoid to emit focused light, and a portion selected from one side or both rear ellipsoids of the focal point being opened or opened to enter light; Further comprising, each unit ellipsoid optical module is characterized in that when the light is incident from the outside through the incidence unit when the light passes the focal point of the optical ellipsoid focuses the light entered into the outside through the exit unit do.

More preferably, the incidence portion further includes condensing means 31, such as a prism sheet, a mirror sheet or a lens, for condensing incident parallel light to the focal position of the optical ellipsoid.

The output unit may be provided with a collimation device such as a ball lens.

Also preferably, the optical guide body may include a body opening having a through hole corresponding to the unit ellipsoid optical module one-to-one or a groove having a groove formed at a predetermined depth, and the unit ellipsoid optical module and the incident optical And at least two support bodies for selectively seating, attaching, and supporting the means.

More preferably, the optical guide body further comprises a third support body 21c in which a plurality of incident portions are formed.

Also preferably, the incidence optical means may include incidence means for injecting light into the focal position of the optical ellipsoid or inside thereof through the incidence portion of the unit ellipsoid optical module; Support means for supporting the incidence means; Characterized in that consists of.

Also preferably, the unit ellipsoidal optical module may be integrally formed on the optical guide body, and the incident optical means may be selectively integrally formed on the unit ellipsoidal optical module or the optical guide body and the optical ellipsoid It may be located inside the.

Also preferably, the optical ellipsoid and the incident optical means are continuously extended in the longitudinal direction so that the unit ellipsoidal optical module is in the form of a rod or a bar as a whole.

According to the present invention, the light energy utilization efficiency can be maximized, the structure is simple, the production and installation is easy, and the manufacturing cost can be obtained at low cost.

Furthermore, there is an additional advantage in that the characteristics of the ellipsoid can focus not only the light at the exact focus position but also the light near the focus point.

1 is a view for explaining the basic concept of an elliptical mirror.
2 is a perspective view of an ellipsoidal focusing light guide according to a first embodiment of the present invention.
3 is a perspective view, an exploded perspective view, a positive cross-sectional view and a side cross-sectional view of a unit ellipsoidal optical module according to a first embodiment of the present invention.
4 is a perspective view of an ellipsoid focused light guide provided with a three-layer light guide body according to a first modification of the first embodiment of the present invention.
5 is a cross-sectional view showing the unit ellipsoidal optical module and the incident optical means according to the first embodiment of the present invention.
6 is a cross-sectional view showing a unit ellipsoidal optical module and incident optical means for directly refracting incident light in two focal directions according to a second modification of the first embodiment of the present invention;
FIG. 7 illustrates a unit ellipsoid optical module and incident optical means in which the focal point of the incidence means constituting the unit ellipsoid optical module and the incidence optical means according to the third modification of the first embodiment of the present invention coincides with the focus of the optical ellipsoid One section.
8 is a cross-sectional view of a unit ellipsoidal optical module constituting an ellipsoidal focusing light guide according to a second embodiment of the present invention.
9 is a cross-sectional view of a unit ellipsoidal optical module according to a first modification of the second embodiment of the present invention.
10 is a cross-sectional view of a unit ellipsoidal optical module according to a second modification of the second embodiment of the present invention.
Fig. 11 is a sectional view of a unit ellipsoidal optical module according to a third modification of the second embodiment of the present invention.
12 is a cross-sectional view showing the structure of a light collector using a prism light guide as a solar light collector of the prior art.
13 is a cross-sectional view showing the structure of a light collector using a Gregorian light collecting module as a solar light collector of the prior art.

Hereinafter, various embodiments of an ellipsoidal focusing light guide according to the present invention will be described in detail with reference to the accompanying drawings. However, the accompanying drawings are only described in order to more easily disclose the contents of the present invention, and the scope of the present invention is not limited to the scope of the accompanying drawings, as long as those skilled in the art. You will know.

First, Figure 1 is a view for explaining the basic concept of the ellipsoid mirror, with reference to Figure 1 briefly looks at the ellipsoid mirror.

As shown in Fig. 1A, each point of the ellipse has a constant sum of distances from two focal points f1 and f2. Also, because all the light from one focal point must go to another focal point through the boundary of the ellipse, the light can proceed in all paths by the Fermat principle. This situation is equally applicable to a rotating body that rotates an ellipse around an axis in which two focal points pass. An ellipsoid mirror is a mirror surface that reflects light on an inner surface of the ellipsoid, which is a rugby ball shape. If there is a point light source at the focal point of one mirror of an ellipsoid mirror, all of the rays from this point source to the spherical surface will be gathered to the opposite mirror focus, and if there is no absorbing material, it will return back and pump the light. When used for condensing, there is the potential to improve the light loss, Figure 1 (b) is an internal cross-sectional photograph of a conventional ellipsoidal mirror.

1 (c) and 1 (d) are reflection characteristics of an ellipse employed in the structure of the reflective mirror surface. In the case of a transparent ellipsoid formed by rotating the ellipse 360 degrees even if the mirror is not coated on the inner circumference, the ellipsoid is transparent. If the refractive index is greater than the external refractive index, there exists an area that satisfies the total reflection condition on the surface of the transparent ellipsoid, and many optical systems apply by applying a part of the surface of the ellipsoid, and the ellipsoid mirror is a mirror on the inner and outer circumferential surfaces of the transparent ellipsoid. Anyone can readily see that this coating is included, and in some cases “part of the ellipsoid mirror” or “partial ellipsoid mirror” would be an exact expression, but in the present specification, the term “elliptical mirror” is at least as follows. When some faces include specular surfaces, that is, including "partially ellipsoid mirrors" collectively, the term "ellipsoid" Chromogenic transparent "transparent ellipsoid," the mirror and the mirror mirror is not included and none should be noted that the meaning and collectively, including those from some.

(First embodiment)

2-7, a first embodiment of the present invention will now be described.

2 is a perspective view of an ellipsoidal focusing light guide according to a first embodiment of the present invention, FIG. 3 is a perspective view, an exploded perspective view, a front cross-sectional view and a side cross-sectional view of a unit ellipsoidal optical module according to a first embodiment of the present invention; 4 is a perspective view of an ellipsoidal focusing light guide provided with a three-layer light guide body according to a first modification of the first embodiment of the present invention, and FIG. 5 is a unit ellipsoidal optical module according to the first embodiment of the present invention; 6 is a cross-sectional view showing an incident optical means, and FIG. 6 is a cross-sectional view showing a unit ellipsoidal optical module and incident optical means for directly refracting incident light in two focal directions according to the second modification of the first embodiment of the present invention. Is a unit ellipsoid optical module according to a third modification of the first embodiment of the present invention and a unit ellipsoid optical module in which the focus of the incidence means constituting the incidence optical means and the focus of the optical ellipsoid are matched. And sectional view showing incident optical means.

As shown in FIGS. 2 and 3, the ellipsoid focused light guide 1 according to the first embodiment of the present invention directs incident light from the outside to the focal point through the inside of the ellipsoid and then focuses it by reflecting it on the ellipsoid surface. A unit ellipsoidal optical module 10 formed in an arrangement to be emitted afterwards; An optical guide body 20 for seating, attaching, and supporting the unit ellipsoidal optical module 10; And incident optical means 30 for injecting light into the unit ellipsoidal optical module 10.

In addition, the unit ellipsoidal optical module 10 of the first embodiment of the present invention is openly formed so that light enters a selected surface of the ellipsoid so that light from the outside enters the ellipsoid, as shown in detail in FIG. 3. Unit 101; An emission unit 102 formed by opening a portion selected from one side of the focal point or an ellipsoidal surface of both rear ends so that the center thereof is located on an extension line of a straight line connecting both focal points of the ellipsoid to emit focused light; And an optical ellipsoid 103 formed as part of an ellipsoid, except for the portions of the incidence portion 101 and the emission portion 102. In the first embodiment, the incidence portion 101 is formed by the optical ellipsoid 103. And an ellipsoidal mirror with the emitter 102 excluded, and each unit ellipsoidal optical module 10 has an optical ellipsoid 103 formed with a mirror surface when light is incident from the outside through the incidence portion 101. When passing through both sides of the focus) is provided to focus the light entered into the outside through the exit unit 102 to the outside.

In addition, the incident optical means 30 includes: incident means 31 for outputting the incident light to the focal point of the optical ellipsoid 103 or the interior thereof through the incident portion 101 of the unit ellipsoidal optical module 10; And support means 32 for supporting the incidence means 31.

In addition, the optical guide body 20 may be provided with a body opening (not shown) or a through hole corresponding to the unit ellipsoidal optical module 10 one-to-one or with a groove formed at a specific depth. It consists of a support body 21 for seating, attaching and supporting the unit ellipsoidal optical module 10.

In this case, each component of the unit ellipsoid optical module 10 may be selectively integrally formed on the light guide body 20. In the first embodiment, as shown in FIG. 2, the unit ellipsoid optical module 10 ) Is integrally formed on the two support bodies 21a and 21b constituting the optical guide body 20, and the incident optical means 30 is integrally formed on one of the support bodies 21a, and the unit is provided. It is provided to correspond to the ellipsoidal optical module 10 one-to-one and positioned at the top of the body, and provided with two support bodies (21a, 21b), the optical ellipsoid 103 and the exit portion 102 on the flat upper and lower substrates, respectively The shape is divided into two and is formed so as to be formed in the upper plate (21a) and the lower plate (21b) half constituting the support body 21, the incidence portion 101 by opening the upper end of the upper plate (21a) of the support body 21 Equipped. An aluminum substrate is used as the flat upper and lower substrates, and the inside surface of the ellipsoid and the surface where the light is moved are precisely polished to have an illuminance of 20 nm or less, and then mirror-coated. Many such surface polishing or mirror coating methods are disclosed and can be easily understood by those skilled in the art, and a detailed description thereof will be omitted below. In this case, the unit ellipsoidal optical module 10 is configured so that the light focused on the side is emitted without interference. Each exit portion 102 is formed to be stepped on the support body 21 as shown in FIG. 2 so that it extends to the side surface without interference by the other unit ellipsoidal optical module 10. In some cases, by increasing the cross-sectional area of the exit portion, it is possible to output even light that does not exactly pass through the focus. In this case, since the exit light is not parallel light in most cases, a collimation device such as a convex lens in the exit portion is used. It is preferable to have it separately.

(First modification of the first embodiment)

On the other hand, as a first modification provided with the incident optical means 30 in the support body 21, as shown in Figure 4, so as to correspond to the incidence portion 101 of the unit ellipsoidal optical module 10 one-to-one A plurality of incidence optical means 30 may be collectively provided integrally on the three separately prepared supporting bodies 21c. In this method, a transparent substrate or a hole is formed in advance so that the incidence optical means 30 may be easily formed. A method of preparing a plurality of formed transparent or opaque substrates as the support body 21c and collectively molding the incident optical means 30 on the support body 21c using a mold of the incident optical means 30 prepared in advance. Such a mold is called a transfer mold, and is a manufacturing method widely applied to a batch bag production of LEDs and LED lenses using a transparent optical silicon material. At this time, the support means 32 for supporting the incidence means 31 of the incident optical means 30 is integrally formed on the support body 21c because it is to be attached to the support body 21c during molding using a mold.

And after preparing the separate supporting body (21a, 21b) in the same way using the mold prepared in advance prepared for each of the shape of the optical ellipsoid 103 and the exit portion 102 is formed in half If the entire surface of the support body (21a, 21b) is collectively mirror-coated, manufacturing cost can be reduced according to the batch production. Finally, if the three supporting bodies (21a, 21b, 21c) are arranged and assembled, a plurality of units are collectively. The ellipsoidal focusing light guide 1 in which the ellipsoidal optical module 10 is formed is easily understood by those skilled in the art, and thus, a detailed manufacturing method for the unit ellipsoidal optical module 10 and the incident optical means 30 will be described. Detailed description thereof will be omitted below.

Incident optical means 30 in the first embodiment and the first modified example, as shown in Fig. 5, the support means 32, the two incidence means (31a, 31b) is made of silicon which is a transparent material ), The incident means 31a and 31b are formed by forming a prism (not shown) having a predetermined angle so that the incident light passes through the left focal point f1, and the right incident means 31b has two Prisms (not shown) having surfaces of two different angles are formed, and are formed so as to position corners where two surfaces meet at the center of the incident light so as to divide the incident light, and each of them passes through the focal points f1 and f2.

Hereinafter, the operation of the ellipsoidal focusing light guide 1 of the present embodiment and the modification will be described.

First, referring to the operation process of one unit ellipsoid optical module 10 constituting the ellipsoid focused light guide 1 of the first embodiment and the modified example, the left incidence means (not shown) from a linear light source (not shown) such as a laser The light reaching 31a is incident on the optical ellipsoid 103 so that the light passes through the focal point f1 by the prism, and then the light reflected by the mirror surface of the optical ellipsoid 103 must be the other focus ( The light incident on f2) and reflected back from the mirror surface at the rear end necessarily passes the left focal point f1, and the optical path converges to an imaginary straight line connecting the two focal points through this process. The light passing past the left focus where the 102 is positioned is ultimately emitted to the exit unit 102. As shown in the incidence means 31a of FIG. 5, the initial incidence position connects the two focal points f1, f2 and one point of the mirror surface. The angle of the two segments is large When the light is incident at the position, the angle between the two lines connecting the two focal points and the reflective surface becomes smaller as the reflection progresses from the two focal points and the mirror surface, so that the light does not return to the initial incident point again.

Therefore, most of the light that is first incident to pass through the focal point f1, which is not absorbed at the surface of the optical ellipsoid 103 (by light attenuation, scattering reduction, etc.) reaches the exit section 102 and is out of the way. The light which is emitted and reaches the right incidence means 31b from an arbitrary linear light source (not shown) is the light divided by the same principle to reach one output unit 102.

Accordingly, the first embodiment according to the present invention uses a mirror but focuses incident light very efficiently without widening the emission parallel light focusing ratio again as in the prior art.

Since the plurality of unit ellipsoidal optical modules 10 constituting the ellipsoidal focusing light guide 1 of the first embodiment are operated at the same time, and each of them is formed stepped as shown in Figs. The ellipsoidal optical module 10 enables the light to be efficiently focused to the side without being disturbed by the light propagation.

(2nd modification of 1st Example)

On the other hand, as the incidence means 31b constituting the unit ellipsoidal optical module 10 and the incidence optical means 30, a wide variety of modifications are possible, unlike in the first embodiment, as shown in FIG. Top prism sheet (see FIG. 6 (a)) or mirror sheet (see FIG. 6 (b)) that directly refracts incident light in both focal directions, Fresnel lens / mirror or Paris eye lens / mirror 'Dome-shaped Fresnel lens', 'dome-shaped fly's eye lens' focusing on the selected focal point regardless of incident angle of incident parallel light, and 'semi-spherical light lens' with different refractive index layers (First application 11) may be provided, and may be integrally formed at a position of the incidence means 31b or the support means 32 and the optical ellipsoid 103, and formed integrally, but the shape is also parabolic curvature (Fig. 6 (a)) and a part of the optical ellipsoid 103 It may be further provided with a top window (see Fig. 6 (b)) to simply pass through.

(Third Modified Example of First Embodiment)

In addition, as shown in FIG. 7, it may be a ball lens that can selectively match the focal point of the incidence means 31b and the two foci of the optical ellipsoid 103, in which case the light is parallel to the incidence means 31b. In addition, a ball lens, a dome shaped Fresnel lens, a dome shaped fly's eye lens, and a hemispherical light lens having different refractive index layers are formed so that the prism is further formed on the surface so that the focal point is always centered even when the incident angle is changed. First application 11) or a cross-sectional shape (a), (b), (c) and (d) of FIG. 7 or a focus connecting line (up and down rotation) connecting two focus points or a line perpendicular to the focus connecting line (left and right rotation) It is rotated 180 degrees up, down, left, and right with the axis of rotation, or the upper surface is the focus connecting line connecting the two focal points (b), (b), (c), (d) only the shape of the incidence means (31b) of the cross section ( Vertical rotation) or a line perpendicular to the focus line and rotated left and right The shape rotated up to 180 degrees up, down, left, and right at a predetermined angle and the rest thereof may be the shape of the optical ellipsoid 103, wherein the upper and lower windows through which light passes are formed on the upper and lower ends of the optical ellipsoid 103. Optionally provided, the formed hemispherical lens, the donut-shaped hemispherical lens, has a hemispherical light lens (prescribed 11) having a predetermined prism or different refractive index layers on the surface such that the focal point is located at the focal point of the optical ellipsoid 103; Likewise, a plurality of layers having different refractive indices may be further included.

In addition, although not shown, as the incidence means 31b constituting the incidence optical means 30, Fresnel lens, Freonel mirror, aspherical lens, green lens, concave mirror, convex mirror, rotating mirror, parabolic mirror, Kepler and Galileo optics, Gregorian and caseegrain optics, Newton optics, optical fiber, dome shaped Fresnel lens, dome shaped fly's eye lens, combined with various light sources and optical elements and arrays including LEDs, with selective reflection at two focal points To a third optical means (not shown) to refract, the support means 32 constituting the incident optical means 30 is a wavelength selective transmission layer for passing a specific wavelength and reflecting a specific wavelength from the inside It may be further included in the lower portion and further includes a wavelength selective transmission layer that reflects a specific wavelength, which is more easily understood by those skilled in the art. Detailed description thereof will be omitted.

In addition, the shape of the support means 32 is also formed integrally with the optical ellipsoid 103 constituting the unit ellipsoidal optical module 10 as a whole, and is separated from the original ellipsoidal shape of the opening 101 of the unit ellipsoidal optical module 10. It will be apparent to those skilled in the art that the incident optical means 30 may be located inside including the inner bottom of the optical ellipsoid 103 and may be located at a distance from the unit ellipsoidal optical module 10 through the opening. And, since it will be easily implemented by those skilled in the art without further detailed description it will also be omitted.

On the other hand, the rear window formed with a wavelength selective transmission layer that passes a specific wavelength to the emission unit 102 constituting the unit ellipsoidal optical module 10 and reflects the specific wavelength from the inside, and a collimator for collimating the emitted light and the sun. A battery may be further included, and a half mirror may be optionally further included while simultaneously reflecting on a specific wavelength. In addition, a laser dye (dye) or a phosphor excited by a specific wavelength incident on a predetermined position inside the optical ellipsoid 103 constituting the unit ellipsoid optical module 10 may be further included.

(Second Embodiment)

8 to 11, a second embodiment of the present invention will be described in detail.

8 is a cross-sectional view of a unit ellipsoidal optical module constituting an ellipsoidal focusing light guide according to a second embodiment of the present invention, and FIG. 9 is a cross-sectional view of a unit ellipsoidal optical module according to a first modification of the second embodiment of the present invention. 10 is a cross-sectional view of a unit ellipsoidal optical module according to a second modification of the second embodiment of the present invention, and FIG. 11 is a cross-sectional view of a unit ellipsoidal optical module according to a third modification of the second embodiment of the present invention.

Hereinafter, for convenience of description, the same configuration as that of the first embodiment of the present invention is denoted by the same member number and the additional description is omitted, and the ellipsoidal focusing light of FIGS. 2, 3, 4, 5, 6, and 7 described in the first embodiment. Components having similar functions to the guide 1 will be given similar parts and only differences will be described.

As shown in FIG. 8, the optical ellipsoid 103a of the unit ellipsoid optical module 10a according to the second embodiment has a shape in which two optical ellipsoids E1 and E2 share one focal point ef ₂ . It is equipped with.

Accordingly, the light incident through the focal point of the optical ellipsoid E1 is reflected by the optical ellipsoid E1 and is incident on the focal point ef ₂ of the optical ellipsoid E2, and the following operating relationship is the first embodiment of the present invention. It is the same as the optical ellipsoid 103 of an example.

Meanwhile, the shape of the optical ellipsoid E2 that receives light from the front end of the ellipsoid E1 and focuses the light may be formed by dividing or rotating the lens at various angles as long as they share one focal point ef ₂ . The direction of the output unit 102 is determined, which can emit the focused light in various directions, and thus has an effect of providing a great degree of freedom in staring the focused light in a desired direction. As described above in the first embodiment, various optical elements can be adopted in place of the optical ellipsoid E1 at the front end, and there is a great effect on focusing and optical staring of incident light.

(First modification of the second embodiment)

In addition, as a first modification of the second embodiment of the present invention, a unit ellipsoid optical module composed of an optical ellipsoid 103a using two or more optical ellipsoids E1, E2, E3, and E4 and the incident optical means 30 10a '). 9 (a) is a perspective view of the unit ellipsoidal optical module 10a 'in which the optical ellipsoid 103a and the incident optical means 30 are ball lenses in order to help those skilled in the art for understanding the modification. b) shows the unit ellipsoidal optical module 10a 'shown in FIG. 9A from below.

Accordingly, referring to FIG. 9, an optical ellipsoid composed of optical ellipsoids E1, E2, E3, and E4 receives incident light along a direction when the ball lens as the incident optical means 30 focuses parallel light incident from various angles ( 103a) emits light, and each of the optical ellipsoids E1, E2, E3, and E4 is the same as the unit ellipsoidal optical module 10 according to the first embodiment of the present invention. Since it is the same as the optical ellipsoid 103 of the first embodiment, a detailed description thereof will be omitted, and the unit ellipsoid optical module 10a 'according to the first modification of the second embodiment has a collimator or a sun collimating the focused light emitted at the bottom. It may further include a battery, wherein the surface of the optical ellipsoid (E1, E2, E3, E4) to reflect the incident light to be irradiated to the collimator or solar cell, or inside the optical ellipsoid (E1, E2, E3, E4) The incidence means 31b of the incidence optical means 30 are mixed to be refracted by It can be provided as ever.

(2nd modification of 2nd Example)

In addition, as shown in FIG. 10, as a second modification of the second embodiment of the present invention, two optical ellipsoids E1 and E2 are integrally formed by using a transparent material and mirror-treated only on predetermined portions. 103a may be provided, and a person skilled in the art will readily understand that even if the outer circumferential surface of the rotating body except for the mirror surface portion is transparent, it is not necessary to treat the mirror surface on the outer circumferential surface by total reflection on incident light.

(Third Modified Example of Second Embodiment)

In addition, as a third modification of the second embodiment of the present invention, as shown in FIG. 11, a ball lens is formed between two optical ellipsoids E1 (not shown) (see FIG. 11A), or manufactured externally. After further positioning the ball lens (glass, see FIG. 11B), or further including a prism to collimate or focus, the light may be relayed to another optical ellipsoid (not shown). .

In this case, even though the light emitted from the optical ellipsoid E1 is not parallel light, since it is collimated as parallel light while passing through the ball lens, it is advantageous to guide or use the parallel light later, and it is more preferable because the light does not spread.

(Other variations)

Although not shown, a rod or bar having the cross-sectional shape of FIGS. 5 to 8, wherein the optical ellipsoid 103 and the incident optical means 30 extend continuously in the longitudinal direction, that is, the cross-sectional shape extends to a predetermined length. In the form, guide means may be provided.

In this case, the light emitted is not a point light source but is actually a linear light source.

As such, the embodiments of the present invention described above should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

1: ellipsoidal focus optical guide 10: unit ellipsoidal optical module
20: optical guide body 30: incident optical means

Claims (12)

A unit ellipsoidal optical module formed in an arrangement in which incident light from the outside passes through the inside of the ellipsoid to be focused on one side, and is then reflected on the ellipsoidal surface, focused, and then emitted;
An optical guide body for mounting, attaching, and supporting the unit ellipsoidal optical module; And
Incident optical means for injecting light into the unit ellipsoidal optical module;
An ellipsoidal focusing light guide comprising: a. The method of claim 1,
The unit ellipsoidal optical module,
An ellipsoid focused light guide comprising at least one optical ellipsoid formed as part of an ellipsoid. The method of claim 2,
The unit ellipsoid optical module may include two or more first and second optical ellipsoids E ₁ and E ₂ , wherein the first and second optical ellipsoids E ₁ and E ₂ are selected from the respective focal points. An ellipsoidal focusing light guide, characterized in that the position of one side focal point is arranged to match. The method according to claim 2 or 3,
An ellipsoidal-focus light guide, characterized in that the mirror-coated treatment only on a portion where the incident light is reflected inside the optical ellipsoid. The method of claim 2,
The unit ellipsoidal optical module,
An incidence portion formed with one or a plurality of openings formed in the selected portion of the ellipsoid or opened so that light enters the ellipsoid from outside; And
An emission unit whose center is positioned on an extension line of a straight line connecting both focal points of the ellipsoid to emit focused light, and a portion selected from one side or both rear ellipsoids of the focal point is opened or opened to enter light;
Consists of more,
Each unit ellipsoid optical module focuses on the light that enters when the light passes from the outside through the incidence part when the light passes the focal point of the optical ellipsoid and emits the light to the outside through the output part. The method of claim 5, wherein
And a light collecting means (31), such as a prism sheet, a mirror sheet, or a lens, for collecting the incident parallel light and directing it to a focal position of the optical ellipsoid. The method of claim 5, wherein
An ellipsoid focused light guide, characterized in that the output unit is provided with a collimating device such as a ball lens. 3. The method according to claim 1 or 2,
The optical guide body may be provided with a through-hole corresponding to the unit ellipsoid optical module one-to-one or a body opening having a groove formed at a predetermined depth, and selectively seating the unit ellipsoid optical module and the incident optical means. An ellipsoid focused light guide comprising two or more supporting bodies to attach and support. The method of claim 8,
The light guide body further comprises a third support body (21c) having a plurality of incident portions are formed. The method of claim 1,
The incident optical means,
Incidence means for injecting the incident light into a focal position of or inside the optical ellipsoid through an incidence portion of the unit ellipsoid optical module; And
Support means for supporting the incidence means;
Ellipsoidal focusing light guide, characterized in that consisting of. The method of claim 1,
The unit ellipsoidal optical module may be integrally formed with the optical guide body, and the incident optical unit may be selectively integrated with the unit ellipsoidal optical module or the optical guide body and positioned inside the optical ellipsoid. An ellipsoidal focusing light guide, characterized in that. The method of claim 2,
And the optical ellipsoid and the incident optical means extend continuously in the longitudinal direction so that the unit ellipsoid optical module has a rod or bar shape as a whole.

Images