LT6174B - Lighting system utilizing day light - Google Patents

Abstract

The present invention relates to use of solar energy for lighting with natural daylight. The system is capable of collecting daylight at lit places and passing it to places that need to be lit, such as streets, buildings, houses, indoor and outdoor premises, without using any other light sources.The lighting system includes sunlight collection means optically connected to light transfer optical cable connected to light distribution means or outdoor and indoor lighting installation. The novelty of this lighting system is that one end of the optical cable is optically connected to light collection means laid out in one time zone, and the other end is connected to light collection means laid out in another time zone, where the same cable is used not only to receive light, but also to give it, thereby light is automatically transferred from lighter zones to darker zones: a cellular functioning principle.

Description

TECHNICAL FIELD

The present invention relates to the use of solar energy for lighting in natural daylight. The system can collect daylight in illuminated areas and transmit the collected light to areas that need to be illuminated, such as streets, buildings, homes, interior and exterior, without the use of any other energy source.

TECHNICAL LEVEL

Solar energy has been and still is regarded as the most promising and important source of renewable energy. Solar thermal energy is used for building heating systems, hot water supply. Solar energy is also used to generate electricity. Mostly solar generated electricity is used for indoor lighting.

The utility model description CN201916844 describes a solar system. This system consists of a solar storage system and an optical fiber transmission system. The solar storage system includes a solar cell battery, power supply and charging regulators, as well as a battery. The fiber optic transmission system includes light source optical fiber equipment and a light guide optical fiber mounted on a light source optical fiber equipment. This lighting system is an environmentally friendly, economical light source and can be used to transmit light over a long distance safely and reliably.

United States patent application US2012204945 describes a light collection module and a solar energy device having that module. The light collection module consists of a light deflector and a solar energy receiving element. The light deflector has first and second surfaces facing the first. Surfaces have different structures. The first light deflecting structure has a first surface and an additional surface interconnected and separated by a first angle. Accordingly, the second light deflecting structure has a second surface and an additional surface interconnected and divided by a second angle. The inclination directions of the first and second light guide surfaces are opposite to each other. The solar receiving element is positioned on the first or second surface. The present invention seeks to obtain a good photoelectric effect.

Japanese Patent Application JP2012253154 describes a light collecting device. The invention solves the problem of lighting a selected room. The light collection unit has a plate that is mounted inside and outside the partition. This unit can transmit and reflect light from the outside to the inside. The optical fibers are disposed on the surface of said plate from the outside and can collect light from the outside as reflected light from the plate. A photoelectric cell generates energy from light received through optical fibers. The reflection of light from the board is interchangeable.

However, the potential for solar energy to generate electricity is limited because of the scattered, weakly concentrated solar energy itself, and its parameters change chaotically over a wide range depending on the time of day and time of year.

Other types of indoor lighting, without the use of electricity, only natural sunlight are also known. Natural light can be introduced into a confined space by peculiar light tubes or tunnels (fiber optic), practically through any of its enclosures - roof, walls, increase natural light flux, optical fiber consists of collection, transmission and delivery areas. Natural light first enters the semi-spherical dome assembly area, which contains many faceted lenses. These are adjusted to direct the light rays to the inside of the tube. As the light is transmitted through the tube, the light bounces together and is reflected off its surface, thereby enhancing its intensity. In the delivery area, light spreads around the premises (http://www.allconstructions.com/portal/ (2013-07-03).

European Patent Application EP2385297 describes a solar light collection system for lighting. This system consists of a solar light collection module, first, second and third light guide tubes. The light pickup module has primary and secondary reflectors. The main reflector is configured so that the reflector assembly can concentrate and direct the sunlight into the secondary reflector, which in turn directs the sunlight into the first, second and third light guide tubes and finally into the building for lighting, temperature control, power generation or storage. The system shall be installed in such a way that the assembly module can be rotated about its vertical or horizontal axis to match the position best suited for collecting sunlight. The system is easy to install and efficiently collects and deflects sunlight.

British Patent Application GB2029883 describes an apparatus for using solar energy to illuminate enclosed areas not accessible to the sun. This apparatus consists of a sunlight concentrator, one or more optical fibers in the area of the concentrator, and one or more diffusers which diffuse light coming through the optical fibers into a confined space. The concentrator may have mirrors and the diffuser may be formed by the distribution of optical fibers.

United States patent application US4389085 describes a lighting system using sunlight. This system consists essentially of a point-to-point optical system, an optical transmission line having optical conductor means with light scattering apertures directed at the required points, and an optical system for redistributing sunlight transmitted through an optical transmission line. or points.

Another US patent application US5709456 describes a solar light collection and transmission system comprising means for collecting and converting sunlight into concentrated light. The collecting means are optically coupled to the transmission means, such as an optical cable. In this way, concentrated light is transmitted by means of transmission to the building's lighting installation.

The Chinese patent application CN 102305380 describes a light collecting device comprising adjusting, turning and lighting devices. The adjusting device is connected to the actuator of the rotary device and to the illumination device and adjusts the rotation of the lighting device in order to obtain the required angle with the incident light of the sun. The rotating device follows the incident sunlight horizontally. The illumination device shall have a longitudinal tracking device and a rotating optical device. The optical device is rotated by a longitudinal tracking device to form the required angle with the incident sunlight. The light-gathering device changes the direction of the incident sunlight to the required direction. In this way the light can always be directed towards the interior of the building in the specified direction.

Another Chinese patent application CN 103090304 describes a light collection device used to direct sunlight indoors through a fiber optic. The light collection device consists of an optical fiber and a light collection element mounted on the end of the optical fiber input. The light-gathering unit transmits the sun's rays through optical fibers not only for cooking, but also to illuminate the room using only a few structural elements. Fiber optic can be likened to electrical wires that carry electricity, in this case sunlight. The light collection unit is safe, environmentally friendly and requires low production costs.

European Patent Application EP2645011 describes a solar light collection system which includes a parabolic light collector and a concentrated high-density beam transmission device to a remote location, as well as high-density light generation by multi-stage connection of light beams from multiple light collectors.

Spanish patent application ES2167257 describes indoor lighting by means of sunlight using optical fibers. The lighting system uses Frenel lenses or parabolic mirrors. Continuous lighting requires alignment of the lenses or mirrors with the sun's position.

The technical solutions described are designed to efficiently and safely use sunlight to illuminate indoors during the day, but remain a problem for outdoor lighting in the dark.

The closest technical solution to the patented invention is a north-south tunnel illumination solar system described in Chinese patent application CN 1013123085. This system consists of a solar accumulator, a parabolic reflector, lenses, a reflector plate, a flat reflector, a semi-reflective and semiconductor lenses, lens and beam with directional beam. A parabolic reflector and coaxially mounted lenses are mounted on a sunlight accumulator. The reflector plate is mounted at the end of the beam formed by the lenses and the flat reflector is mounted at the end of the beam formed by the reflector plate. The light-guide tube is mounted on the inner wall of the tunnel, while the semi-reflective and semi-conductive lenses are mounted on the light-guide tube, while the diffuser and the diffused beam are mounted below the semi-reflective and semi-conductive lenses. In this way, the light reflected by these lenses is emitted through the lens. Sunlight is directed directly into the tunnel through an optical element. The light is strong at both ends of the tunnel entrance. The light intensity decreases with distance from the entrance. The lighting method is simple and easy to implement, the lighting energy does not need to be converted into electricity and the energy utilization rate improves accordingly.

Without the use of additional light energy storage devices, said lighting system can only function during the day.

THE SUBSTANCE OF THE INVENTION

The present invention seeks to utilize sunlight for street, building, and indoor lighting without the use of any other energy source.

An lighting system comprising solar collectors optically coupled to a light transmission optical cable that is coupled to a luminous distribution or outdoor and indoor lighting installation. What's new in this lighting system is that one end of the fiber optic cable is optically connected to the light collecting means located in one time zone and the other end to the light collecting means located in another time zone ·

BRIEF DESCRIPTION OF THE DRAWING FIGURES

FIG. 1 is a schematic diagram of a lighting system illustrating the invention.

PREFERRED {LIVING OPTIONS

For the sake of visuality, the scheme places two relative positions of illuminated objects in different time zones side by side. The left of the drawing shows the objects in the time zone where the time of day is, and the right of the drawing the objects in the time zone where it is night time. The light-collecting lenses (1) are located on roof-top houses whose rooms are illuminated using the collected sunlight and above street lamps. The light transmission channel is an optical cable (2). A single optical cable (2) connects objects in both time zones - houses and lights.

Operating principle:

Selects areas for lighting that are in different time zones. All zones are connected by optical fiber cables. Light is automatically transmitted from lighter areas to areas with darker cells - the cellular principle.

Advantage - the same cable is used not only to receive light, but also to cast. The transmission and reception of light is done by the same optical cable (two-way feedback).

On a clear day, the light intensity is between 25,000 and 50,000 lux. According to the hygiene standards the lighting of the premises should be between 100 - 1000 lx. Horizontal lighting on sidewalks must be at least 5 lx. In heavy traffic areas, people's meeting places, sports, concert halls and elsewhere, the illumination must be at least 10-15 lx.

The amount of light collected would be several thousand times more than the amount of light needed for illumination. For example, a single lens above a street lamp can, under normal daylight conditions (20,000 lx), capture the light needed to illuminate 1000 of the same luminaires (20 lx illumination) in the dark area.

The light can be collected by special lenses, such as Frenel lenses or parabolic mirrors or other lenses known in the art and applied to an optical cable.

Claims (1)

DEFINITION OF INVENTION 1. An lighting system comprising light collecting means optically coupled to an optical cable which is connected to a light distribution means or a lighting installation, characterized in that one end of the optical cable is optically connected to light collecting means arranged in one time zone and the other end with light collection means located in a different time zone, where the same cable is used not only to receive but also to deliver light; in this way, light is automatically transmitted from lighter areas to areas with darker cellular working principles.