1. A flood protection barrier in combination with a door or window aperture in a wall of a building, the aperture having door or window frame members that include inwardly-facing recess formations for receiving a door or window and outwardly-facing surfaces, the flood protection barrier comprising:
a shield having a sealing element and securing means for securing the shield in place;
the securing means including a plurality of clip means, each clip means including at least two mutually adjustable coupled components, a first adjustable coupled component affixed to the shield and connecting to a second adjustable coupled component, the second adjustable coupled component connected to an inwardly-facing recess formation of a frame member; and
the sealing element forming a fluid-resistant seal between the shield and an outwardly-facing surface of the frame member at the periphery of the aperture.
2. A flood barrier according to claim 1 in which the securing means is carried entirely on the shield.
3. A flood barrier according to claim 1 in which the securing means is adapted to engage with a periphery of the aperture that the barrier is deployed to protect.
4. A flood barrier according to claim 1 in which the securing means is adapted to cooperate with the frame member.
5. A flood barrier according to claim 1 in which the securing means is configured to be accessible only from within a building that the barrier is deployed to protect.
6. A flood barrier according to claim 1 in which the securing means includes a plurality of wedge elements that can be deployed to secure the shield in position by wedging within an aperture.
7. A flood barrier according to claim 6 in which the wedge elements are secured to the shield by means of flexible connecting components.
8. A flood barrier according to claim 1 in which a door or window within the frame member can be closed while the barrier is deployed.
9. A flood barrier according to claim 1 in which each clip can be deployed to secure the shield to a recess formation surface of the frame member.
10. A flood barrier according to claim 9 in which the recess formation surface is an inwardly-facing surface within a recess formation in the frame member into which a door or window is received when closed.
11. A flood barrier according to claim 1 in which each clip means is adjustable to enable it to be secured to a range of different frames members.
12. A flood barrier according to claim 1 in which in which the shield is made of a rigid material.
13. A flood barrier according to claim 1 in which the shield is made of a suitable plastic, wood or composite material.
14. A flood barrier according to claim 1 in which the shield has a generally flat face that engages with the periphery of the aperture.
15. A flood barrier according to claim 1 in which the shield has a flat peripheral region of a face that engages with the periphery of the aperture.
16. A flood barrier according to claim 1 in which a face of the shield is provided with strengthening formations.
17. A flood barrier according to claim 1 which is formed with a dimension that is greater than a corresponding dimension of the aperture.
18. A flood barrier according to claim 1 in which the sealing element includes an elongate flexible plastic material element.
19. A flood barrier according to claim 1 in which a portion of sealing element extends along part of a flat surface of the shield.
20. A flood barrier according to claim 1 in which a portion of the sealing element extends along part of a peripheral surface of the shield.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A light emitting device, comprising:
a first photonic crystal structure comprising a reflective layer and a plurality of non-metal pattern elements on the reflective layer;
a second conductive semiconductor layer on both the reflective layer and the plurality of non-metal pattern elements;
an active layer on the second conductive semiconductor layer;
a first conductive semiconductor layer on the active layer;
a non-conductive semiconductor layer on the first conductive semiconductor layer; and
a first electrode layer on the first conductive semiconductor layer,
wherein the non-conductive semiconductor and the first conductive semiconductor layer have a recess in which the first electrode layer is located.
2. The light emitting device of claim 1, further comprising:
a second electrode layer under the reflective layer.
3. The light emitting device of claim 1, wherein lower and side surfaces of each of the plurality of non-metal pattern elements are surrounded by the reflective layer.
4. The light emitting device of claim 1, wherein the reflective layer comprises at least one of silver (Ag), alloy comprising Ag, aluminum (Al), and alloy comprising Al.
5. The light emitting device of claim 1, wherein the plurality of non-metal pattern elements comprise a transparent electrode.
6. The light emitting device of claim 1, wherein the plurality of non-metal pattern elements comprise a dielectric substance.
7. The light emitting device of claim 1, wherein the plurality of non-metal pattern elements are surrounded by the reflective layer and are arranged with a lattice constant in a range of \u03bbn to 10\u03bbn, in which \u03bb represents a wavelength of light emitted from the light emitting device, and n represents a refractive index of a material forming a light emitting layer of the light emitting device.
8. The light emitting device of claim 1, wherein the reflective layer is surrounded by the plurality non-metal pattern elements so that the reflective layer is arranged with a lattice constant in a range of about \u03bbn to about 10\u03bbn, in which \u03bb represents a wavelength of light emitted from the light emitting device, and n represents a refractive index of a material forming a light emitting layer of the light emitting device.
9. The light emitting device of claim 1, wherein the plurality of non-metal pattern elements are protrusions protruding from the second conductive semiconductor layer toward the reflective layer.
10. The light emitting device of claim 1, further comprising:
a second photonic crystal structure on the first conductive semiconductor layer.
11. The light emitting device of claim 1, wherein the first electrode layer is directly on the first conductive semiconductor layer.
12. The light emitting device of claim 5, wherein the transparent electrode comprises at least one of tin-doped indium oxide (ITO), zinc oxide (ZnO), gallium-doped zinc oxide (GZO), ruthenium oxide (RuOx), and iron oxide (IrOx).
13. The light emitting device of claim 6, wherein the dielectric substance comprises at least one of silicon oxide (SiO2), magnesium fluoride (MgF2), titanium dioxide (TiO2), aluminum oxide (Al2O3), spin on glass (SOG), and silicon nitride (Si3N4).
14. The light emitting device of claim 10, wherein the second photonic crystal structure comprises:
a patterned structure on a top surface of the non-conductive semiconductor layer.