light collection device
A technology of light collection and optical devices, applied in lighting devices, non-electric lighting devices, components of lighting devices, etc., can solve problems such as high system cost, uniform distribution of sunlight, and low overall efficiency
Active Publication Date: 2015-09-23
张晓东
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Problems solved by technology
Therefore, the longer the transmission distance, the higher the system cost
[0010] (2) Passive systems are extremely inefficient when transmitting light over long distances
[0011] (3) When transmitting light over a long distance inside a building, the passive system takes up too much space inside the building and greatly increases the additional burden on users, so there is almost no application prospect
[0012] (4) When a passive system is used for long-distance (more than ten meters) light guide, the total efficiency of the system is lower than 45% and the price is higher than 4,000 yuan
These designs cannot be used to evenly distribute sunlight into the building
In fact, the efficiency of concentrating power generation or using solar panels to actively track the sun to generate power is low.
Method used
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[0045] The core idea of the present invention is to allow sunlight to carry out "orthogonal propagation" in the air inside the building. The so-called "orthogonal propagation" means to let the light propagate along the direction of the building facade or horizontal plane. In order to realize this scheme, one difficulty must be overcome: the direction of the sunlight throughout the year always changes dynamically all the time, and it always hits the facade or the horizontal plane of the building obliquely at a certain angle, so it will not Orthogonal propagation occurs naturally. How to fit the light irradiated obliquely on the building into light propagating orthogonally is the key to overcome this difficulty. To achieve this, the oblique light must be "converted" outside the building into light that spreads horizontally or vertically, and then guide it into the interior of the building. And the present invention just can realize the system of this " conversion " function ...
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The invention discloses a light collection device, which comprises a control device, a rotation device and a lighting device, wherein the control device is connected with driving mechanisms of the rotation device and the lighting device and drives the lighting device to form a certain angle with incident sunshine; the rotation device tracks the incident sunshine in the horizontal direction; the lighting device comprises a longitudinal tracking device and a rotatable optical device; and the optical device is driven by the longitudinal tracking device to form the certain angle with the incident sunshine. The light collection device changes the direction of the incident sunshine into a certain given direction. By the device, independent of a medium, light can be always conducted inside a building according to a certain direction.
Description
technical field [0001] The invention relates to a solar energy utilization device for buildings, in particular to a light collection device in a light guide system. Background technique [0002] According to the "Architectural Lighting Design Standards" (National Standard GB / T50033 / 34-2004) promulgated by the Ministry of Construction in 2004, in my country's architectural design, it should be possible to: "Use various light guides and reflective devices to integrate natural light Bringing it indoors; using solar energy as a source of lighting." [0003] The light guide system is an energy-saving green lighting product that meets this national requirement. The light guide system is generally divided into three parts, one is the lighting part, the other is the light guide part, and the third is the astigmatism part. The working principle of this kind of system is to form a light guide part through a medium capable of guiding light (such as a hollow tube with a reflection func...
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IPC IPC(8): F21S11/00F21V5/04F21V7/04F21V14/04F21V14/06
CPCF21S11/005
Inventor 张晓东
Owner 张晓东