The present disclosure relates to light redirecting elements in solar energy absorption systems and envisages a light redirecting prism, a redirecting prismatic wall and a solar panel incorporating the same. The light redirecting prism has three elongate surfaces. The incident surface receives incident parallel rays of light. The redirecting surface performs total internal reflection of the light travelling from the incident surface through a predetermined range of angles and thus redirect the light. The transmitting surface transmits the redirected light at a predetermined angle out of the prism and directs the light towards a solar energy absorbing device. Further, a redirecting prismatic wall can be constructed to comprise redirecting prisms. The light redirecting prism or redirecting prismatic wall can be used in solar panels for enhancing quantum of light incident on the PV cell of the panel.

A secondary reflector for receiving light from a plurality of primary reflectors that includes a reflecting surface having a length aligned along a first axis (z), where a cross-section of the reflecting surface in a plane perpendicular to the first axis (z) forms a curve comprising a concave section positioned between a first endpoint and a second endpoint, at least a portion of the concave section is accurately approximated by a polynomial equation, an aperture is formed by a straight line connecting the first endpoint to the second endpoint, and the concave section is configured to focus a plurality of beams of light passing through the aperture onto a focal point.

An aspect of the present disclosure is a device that includes a reflecting surface having a length aligned along a first axis (z), where a cross-section of the reflecting surface in a plane perpendicular to the first axis (z) forms a curve comprising a concave section positioned between a first endpoint and a second endpoint, at least a portion of the concave section is accurately approximated by a polynomial equation, an aperture is formed by a straight line connecting the first endpoint to the second endpoint, and the concave section is configured to focus a plurality of beams of light passing through the aperture onto a focal point.

A protective transparent enclosure, such as a greenhouse, encloses a concentrated solar power system having line-focus solar energy concentrators. The line-focus solar energy concentrators have a reflective front layer, a core layer, and a rear layer. The core and the rear layers, when bonded with the reflective front layer, enable the line-focus solar energy concentrator, in some embodiments, to retain a particular form without additional strengthening elements. In some embodiments, the core layer and/or the rear layer are formed by removing material from a single piece of material.

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 concaveparaboloidal 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.

Radiant energy traps are disclosed which comprise diffuse radiant energy concentrators with at least one reflector and receiver. A diffuse light concentrator (DLC) with optimizable flexibility may be used in multiple applications, such as solar electric, thermal (air or water), hybrid or a combination system.

The present subject matter is an improved skylight employing four key elements to achieve its twin objectives of improved low sun-angle light collection and reduced high sun angle light and heat collection: (1) a transparent truncated pyramid-shaped dome, (2) two horizon-facing parabolic reflectors, (3) a collimating curb, and (4) a dual-pane diffuser assembly.

The Sun Sky/Electric Hybrid Lighting System (SEHLS) is the fully integrated sun lighting system that can be connected through out multiple rooms to bring natural sun stereophonic lighting into a home or office. SEHLS is a dual capable system that was designed for energy savings with both sun power and low energy lighting. The SEHLS system has four major lighting systems that fit any room's needs. Each unit has been designed with the same common usage and capability. In this Patent, the Sun Sky/Electric Reflective Lite System (SERLS) will be Patented as an example. The SERLS is a dual usage system that can be placed in medium-spaced room such as a bedroom, hallway or office to provide sun light luminance capability.

Disclosed is a sunlight transmitter, and more particularly to a sunlight transmitter according to an embodiment of the present invention is used as a transmission device of solar light to transmit sunlight into an indoor space by condensing and converting the sunlight into straight parallel light, and maximizes a sunlight transmission efficiency by minimizing loss in condensing the sunlight and obtaining not only the straight parallel light of high luminous flux but also diffused light through hybrid condensation.

A scalable parabolic or disc shaped mirror, that is formed and maintained by inflating, with air or inert gas, a rigid polymer membrane envelope, that is pre-formed, and such that when inflated, forms this parabolic or disc shape, governed by a center supporting pole, and ring around circumference of the mirror. The top half of the ballooned envelope is made of a clear transparent membrane through which the sun's rays pass through and on to the lower inner lower surface, which is coated with reflective surface. The balloon is skewered through the middle of each membrane, and clamped with flanges to hermetically seal the envelope. The pole or center structure is anchored and hinged at the base so the Pneumatic Mirror can be articulated to face towards the sun, thus focussing the energy to whatever device is at the focal point.