KR101055636B1 - Combined natural light and focusing on the sun's altitude - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a natural light device, wherein each prism angle of the inner surface is formed within a range of 70 ° to 100 ° in order to focus the incident light at a low altitude angle, and maintains a constant radius of curvature. In order to maximize the sunlight incident at a high altitude angle, the NEL lens portion, an upper ceiling transparent window portion formed of a transparent body and maintaining the same radius of curvature as the annular Fresnel lens portion, and sunlight incident at an intermediate altitude angle Each prism angle is formed within the range of 50 ° ~ 80 ° in order to focus to the maximum, and is formed between the annular Fresnel lens portion and the ceiling transparent window portion of the hemispherical shape of the annular inclined Fresnel lens portion to maintain a constant inclination angle It provides a natural light device comprising a lighter. As a light emitter having such a structural feature is capable of focusing sunlight to a certain cross-sectional area or less, there is an advantage in that it is possible to sufficiently transmit received sunlight even when using a smaller size light duct.

Natural Light, Fresnel Lens, Annular, Clear, Slope

Description

Hemisphere type day-lighting device for complex light and focusing according to the altitude angle of the sun

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a natural light device, and more particularly, to an incident sun corresponding to various altitude angles of the sun efficiently by arranging a Fresnel lens and a transparent window so as to exert different light functions for each part of the hemispherical light emitter. The present invention relates to a natural light device capable of concentrating sunlight within a smaller cross-sectional area by ensuring maximum light.

A natural light device is a device that projects or reflects external sunlight to an interior space that requires lighting, and its scope of application is gradually expanded due to growing interest in developing alternative energy and environmental protection due to exhaustion of near-end resources. There is a trend. Natural light devices are divided into fixed natural light devices that are fixed to a building on the ground and receive only sunlight incident in a specific direction, and a tracked natural light device that can receive sunlight while moving along the sun's motion. , Fixed natural mining and tracking natural mining devices each have their advantages and disadvantages.

On the other hand, there are a variety of mixing methods have been proposed that basically take some of the advantages of the tracking type, but Japanese Patent Laid-Open No. 11-202255, and US Patent Nos. 5,655,339 and 5,896,712 are examples of them. This method has a hemispherical structure of the miner, so that the sun and scattered light of the sun can be secured to some extent, and a prism is formed on the inner surface thereof, so that even if the sun varies in altitude depending on the circumference or the season, The light path of the incident sunlight can be appropriately changed by a predetermined angle.

In the natural light device, the miner is mounted exposed to the outside of the building, and the sunlight received through the miner is led to the light duct connected to the lower part of the light. Will be located. In general, since the interior space of a building is designed for a certain purpose, it is often impossible to secure enough free space in advance, which is why the size of the light duct to be installed in the interior space is limited. However, these proposed mixing methods focus on simply changing the sunlight at an angle rather than focusing the received sunlight into a light duct with a constant cross-sectional area due to the prism structure of the miner. I have a limitation. This problem is exacerbated when natural light is installed in existing buildings, not in new buildings.

Meanwhile, in order to manufacture a hemispherical light emitter in which a plurality of prisms are formed at an appropriate angle, an internal molding space of a mold must maintain a constant radius of curvature and simultaneously form prisms in the internal molding space, which is a very difficult problem in reality. Even if such a mold is made, there is a problem that it is impossible to demould the finished hemispherical miner from the mold without properly adjusting the angle of the prism. The method of maintaining a very gentle or forming a prism only in a certain part has been adopted, which causes further problems in mining efficiency of the miner and focusing of the mined sunlight.

The present invention has been proposed in order to solve the above problems, by combining the respective components of the hemispherical miner differently to increase the light efficiency and to focus the natural sunlight to the light duct of a narrower cross-sectional area as much as possible The object is to provide a light mining device.

It is another object of the present invention to provide a natural light device in which a finished hemispherical light collector can be easily demolded from a mold by constructing a sloped surface in a specific portion of the hemispherical light collector.

The present invention is a natural light device comprising a hemispherical light and a light duct for inducing sunlight transmitted from the hemispherical light, in order to achieve the above object, the hemispherical light is incident at sunrise and sunset time zone A lower annular Fresnel lens portion formed at each prism angle within a range of 70 ° to 100 ° to maintain a constant radius of curvature in order to focus the sunlight as much as possible; An upper ceiling transparent window formed of a transparent body to ensure maximum sunlight incident at noon and maintaining the same radius of curvature as the annular Fresnel lens unit; Each prism angle is formed within a range of 50 ° to 80 ° in order to focus the incident sunlight at a time other than sunrise, sunset, and noontime, and is located between the annular Fresnel lens part and the ceiling transparent window part. An annular inclined Fresnel lens unit for maintaining a predetermined inclination angle; There are technical features, including.

＜ 0.2H 범위내에서 형성되며, 상기 경사면 프레넬 렌즈부는 0.25H ＜

＜ 0.4H 범위내에서 형성되며, 상기 환형 프레넬 렌즈부는 0.4H ＜

＜ 0.6H 범위내에서 형성될 수 있다.For the hemispherical light receiver total unit height H, the ceiling transparent window portion 0.05H <

<0.2H, and the inclined Fresnel lens portion is 0.25H <

<0.4H, and the annular Fresnel lens portion is 0.4H <

It can be formed in the range <0.6H.

The prism angle formed in the lower annular Fresnel lens portion may be 95 °, and the prism angle formed in the annular inclined Fresnel lens portion may be 76 °.

The cross-sectional diameter of the ceiling transparent window may be the same as the cross-sectional diameter of the light duct.

The present invention takes a complex structure by varying the configuration of the hemispherical light emitter according to the height, thereby allowing the sun to more actively receive incident light at any elevation angle, thereby ensuring maximum light receiving amount.

In addition, the present invention can be configured to separate the configuration of the hemispherical light emitter into curvature, plane, and to properly change the angle of the prism in the interior correspondingly to focus the collected sunlight into the light duct of a narrower cross-sectional area.

In addition, the present invention allows the finished hemispherical light emitter to be easily demoulded from the mold by constructing an inclined surface in a specific portion of the hemispherical light emitter to increase productivity.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a schematic configuration diagram of a natural light apparatus according to the present invention, Figure 2 is a schematic cross-sectional configuration diagram of a hemispherical light emitter according to the present invention, as shown in the present invention is a hemispherical light emitter 100, It comprises a light duct 200 is coupled to the lower end of the hemispherical skylight 100. Although not shown, at the end of the light duct 200 is mounted a diffuser for utilizing the sunlight sunlight as an illumination.

The hemispherical light emitter 100 is a part for mining sunlight, and the present invention divides the hemispherical light emitter for each part to form a ceiling transparent window part 120 at the upper part, and has an annular Fresnel lens part 160 at the lower part. And the inclined surface Fresnel lens unit 140 is formed between the ceiling transparent window unit 120 and the annular Fresnel lens unit 160.

＜ 0.2H 범위내에서 형성되는 것이 바람직하다. The ceiling transparent window 120 is to ensure the maximum of sunlight incident at a high altitude angle, such as noon time, it is preferably configured as a transparent body, it is preferable to maintain a constant radius of curvature more preferably annular to be described later It maintains the same radius of curvature as the Fresnel lens unit 160. On the other hand, with respect to the total unit height H of the hemispherical light receiver 100, the ceiling transparent window 120 is 0.05H <

It is preferable to form in <0.2H range.

In addition, although the shape of the ceiling transparent window 120 may be changed in various ways, the present invention does not exclude that the cross-sectional diameter of the ceiling transparent window is the same as the cross-sectional diameter of the light duct 200. Referring to FIG. 1, the cross-sectional diameter of the ceiling transparent window is the same as the cross-sectional diameter of the light pipe 260 in which sunlight is induced. Reference numeral 220 is an optical hopper 220. 3A illustrates an optical path of sunlight incident through the ceiling transparent window in a state where the sun is positioned at the maximum altitude angle when the cross-sectional diameter of the ceiling transparent window is the same as that of the light pipe. That is, the present invention is to reduce the cross-sectional size of the light pipe to less than the intended size if appropriately adjusted the height ratio between the annular Fresnel lens portion, the inclined Fresnel lens portion, and the ceiling transparent window portion according to the given conditions. Make it possible. This means that the natural light device can be installed in a certain size or less in the interior of the building, which is expected to be a very structural advantage.

The annular Fresnel lens unit 160 is a part for focusing the sunlight incident at a low altitude angle, such as sunrise and sunset time zones to the inside of the light duct as much as possible, and is preferably configured in an annular shape at the bottom of the hemispherical light emitter. Preferably it is to maintain the same radius of curvature as the ceiling transparent window 120 described above. A plurality of prisms are formed on the inner surface thereof, and the angle of each prism is preferably within a range of 70 ° to 100 °.

＜ 0.6H 범위내에서 형성되는 것이 바람직하다. 도 2의 확대도는 환형 프레넬 렌즈부 내부에 형성되는 프리즘 각도가 95°인 경우를 보여주고 있으며, 도 3c는 낮은 고도각에 위치한 태양으로부터 입사하는 태양광의 광로가 환형 프레넬 렌즈부에 의해 어떻게 굴절되는지를 잘 보여주고 있다.In addition, with respect to the total unit height H of the hemispherical light receiver, the annular Fresnel lens portion was 0.4H <

It is preferable to form in <0.6H range. The enlarged view of FIG. 2 shows a case in which the prism angle formed inside the annular Fresnel lens portion is 95 °, and FIG. 3C shows that the light path of sunlight incident from the sun located at a low altitude angle is caused by the annular Fresnel lens portion. It shows how it bends.

The inclined Fresnel lens unit 140 is a part for maximizing the concentration of sunlight incident at an intermediate altitude as a time zone other than the sunrise and sunset time zones and the noon time zone, and the ceiling transparent window unit 120 and the annular Fresnel lens unit ( It is preferable that it is comprised annularly between 160). On the other hand, in order to better focus the incident sunlight into the light duct having a constant cross-sectional area, the inclined Fresnel lens portion as described above the lower end of the ceiling transparent window portion 120 and the upper end of the annular Fresnel lens portion 160 It is preferable to configure to have a constant inclination angle to be connected. Furthermore, if the planar inclined Fresnel lens portion is formed between the ceiling transparent window portion and the annular Fresnel lens portion having a constant curvature, it is also expected to have a realistic advantage that the hemispherical light emitter can be easily demolded from the mold after the injection molding is completed. do. This is noted in that it can overcome the limitation that the conventional hemispherical light emitter provided with a prism can not be easily produced by a mold.

＜ 0.4H 범위내에서 형성되는 것이 바람직하다.Prisms are formed inside the inclined plane Fresnel lens portion, and the angle of each prism is preferably within a range of 50 ° to 80 °. The enlarged view of FIG. 2 shows a case in which the prism angle formed inside the inclined Fresnel lens portion is 76 °, and FIG. 3B shows that the light path of sunlight incident from the sun located at a low altitude angle is caused by the inclined Fresnel lens portion. It shows how it bends. Setting the prism angle of the inclined plane Fresnel lens portion to 95 ° takes into account the demoulding from the mold. The inclined Fresnel lens portion is 0.25H with respect to the total unit height H of the hemispherical light receiver.

It is preferable to form in <0.4H range.

＜ 0.15H 범위내에서 형성되는 것이 바람직하다. 이처럼 반구형 채광기 전체 높이에 대하여 주어진 범위내에서 천정 투명창부, 경사면 프레넬 렌즈부, 환형 프레넬 렌즈부, 연결부 각각의 상대적인 높이가 결정되면 높은 채광 효율을 유지하면서도 태양이 어떤 고도각을 유지하더라도 입사하는 태양광을 광덕트 내부로 용이하게 집속할 수 있게 된다. Unexplained reference numeral 180 is a connection for connecting the hemispherical light 100 and the light duct 200. The connection unit 180 is 0 <

It is preferable that it is formed within <0.15H. Thus, if the relative heights of the ceiling transparent window, the inclined fresnel lens part, the annular fresnel lens part, and the connecting part are determined within the given range for the total height of the hemispherical light emitter, no matter what altitude angle the sun maintains while maintaining high light efficiency The incident sunlight can be easily focused into the light duct.

That is, when sunlight is incident at low altitude angles such as sunrise and sunset time zones, the annular Fresnel lens unit 160 of the hemispherical light emitter is guided to the inside of the light duct, and the sun is at noon. When the sunlight is incident at a high altitude above the predetermined altitude, the light is directly transmitted through the ceiling transparent window 120 to be guided into the light duct, and the sunlight is incident at an arbitrary altitude. In this case, the inclined surface Fresnel lens unit 140 is to be properly refracted to guide the inside of the light duct. Therefore, the present invention may be very usefully applied when only a light duct having a practically small cross-sectional area can be constructed, in addition to a case of securing a light receiving amount in a fixed state as well as a natural light-emitting device in an existing building.

1 is a schematic configuration diagram of a natural light device according to the present invention.

Figure 2 is a block diagram of a hemispherical light emitter of the natural light according to the present invention.

Figures 3a to 3c is a view of the incident and transmitted light path of the sunlight entering through each part of the hemispherical miner according to the present invention.

Explanation of symbols on the main parts of the drawings

100: hemispherical light emitter 120: ceiling transparent window

140: inclined surface Fresnel lens portion 160: annular Fresnel lens portion

180: connection part 200: light duct

Claims (4)

A natural light emitting device comprising a hemispherical light emitter and a light duct for inducing sunlight transmitted from the hemispherical light emitter, The hemispherical light emitter, A lower annular Fresnel lens portion formed at an angle within a range of 70 ° to 100 ° and maintaining a constant radius of curvature in order to focus the incident sunlight at sunrise and sunset times; An upper ceiling transparent window formed of a transparent body to ensure maximum sunlight incident at noon and maintaining the same radius of curvature as the annular Fresnel lens unit; Each prism angle is formed within a range of 50 ° to 80 ° in order to focus the incident sunlight at a time other than sunrise, sunset, and noontime, and is located between the annular Fresnel lens part and the ceiling transparent window part. An annular inclined Fresnel lens unit for maintaining a predetermined inclination angle; Including a natural light device of the composite light function, characterized in that it can be delivered to the light duct by focusing the maximum sunlight within a certain cross-sectional area range. The method of claim 1, For the hemispherical light receiver total unit height H, the ceiling transparent window portion 0.05H <

<0.2H, and the inclined Fresnel lens portion is 0.25H <

<0.4H, and the annular Fresnel lens portion is 0.4H <

A natural light device having a composite light function, which is formed within the range of <0.6H. The method of claim 1, The prism angle formed inside the annular Fresnel lens portion of the lower portion is 95 °, and the prism angle formed inside the annular inclined Fresnel lens portion is 76 °. The method of claim 1, The cross-sectional diameter of the ceiling transparent window portion is the same as the cross-sectional diameter of the light duct, characterized in that the natural light of the combined light function.

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