Posts tagged with Leds


13 January, 2013 No Comments

WHICH are the flats sold in today’s market? WHAT’S THE AVERAGE PRICE?

The flats that sold the most are the smaller ones, which are also the ones whose price has decreased the most. Its average price is around €300,000.

When we want bolster a flat’s space to make it seem larger, we must resort to neatness / organization and decorative tricks. The lounges –dining space- with the integrated kitchen are very common in today’s homes. That is why it’s important to throw some numbers and sketches to see how to incorporate the lounge dining area, sofas, shelves ….

1 – How to combine colors:

* Use the colors following a monochromatic line, decorating with different tonalities of one color range.
* Paint using soft and cool colors such as green and blue that create a feeling of wide open spaces.
* The roofs must be of a lighter color than walls. But if a room is square and we want to give the impression that it’s rectangular (to make it look more elongated), this can be achieved using optical effect in two opposite walls with a cool color and a warmer color in the other two.

* White is the traditional color most used in decoration, as it makes the space look larger and brighter.


* Furniture shouldn’t contrast with the color of the walls as the same space would feel narrower.
* It is best to choose small sized furniture, but if you are eager to put large pieces, make sure they are against the wall. It is advisable to use folding furniture in order to clear the way. You may also find very practical dual-use furniture such as bed-sofa, or a central-table with drawers.
* The shelves are very helpful as allow you to place objects without taking away usable space.
* If you have the possibility to put gliding doors, do it as they don’t take away space when opened. Wardrobes offer greater integration into the decor and at the same time are more invisible.
* It is better to use blinds rather than curtains as the latter are thicker and take up more space.
* It is useful and inexpensive to include mirrors, which besides giving more breadth to the space it also increases the home’s luminosity.

3 – LIGHTING: It is very important to know how to use lighting in order to help achieve the desired effects.

* This is usually not an easy topic and it is best if you resort to a specialist, because many variables come into play when choosing the right lighting for every stay, such as: what kind of bulb to use based on price / consumption / power (LEDs, halogen light bulbs), the type of bulb for floor lamp, ….or what if you prefer a cooler or a warmer light, or you are thinking about light regulators… whether to place it, in the ceiling, a wall…..

* In order to give an airy feel to the room, you have to focus the light to the walls or ceiling (indirect illumination).

OLEDs, the new generation of LEDS

1 September, 2011 No Comments

Designing lighting for architecture and decoration.

Nowadays illumination is very important to complement the design and decoration of homes, businesses, industries, streets or roads. A wide variety of electric lamps exist in the current market, but the trend is to minimize energy consumption. Semiconductor diodes or LEDs make the difference (see previous posts).

Different types of lighting

This image shows the evolution: four generations in illumination technology: incandescent light, fluorescents, compact fluorescents, and OLEDs in different colors, considered the near future in lighting.

OLED is the organic version of LEDs. The differences among them are considerable:

* Instead of producing a bright spot, as LEDs do, they produce uniform illumination over a large area.
* OLEDs, are supported in a thinner, more flexible and luminous material than crystal layers of LEDs since the substrate used can be plastic.


*Economically more affordable: Although its production is currently quite expensive, its cost will be reduced considerably when they reach the mass-production stage. When that occurs, its cost could be the same as the cost of the material in which the OLED is printed. Thus being more competitive in comparison to current LEDs.

OLED support

* The result is a better contrast and brightness, since the pixels or dots emit the light directly.
* Allow new architectural applications, ie; paper with light, its integration into furniture, worn on clothing, or other forms of implementation yet to be discovered. Somehow, lamps for homes will disappear. It is expected to reach its commercialization phase in 5 years, both for decoration and functional lighting. However in order to be fully commercialized and added into our daily lives, we should expect 10 years.

* In addition to emitting light, researchers are working so that the new version of OLEDs can absorb also solar energy to produce electricity.
* The problem is that its organic components, molecules and polymers, are difficult to recycle. They also suffer high levels of degradation when they are exposed to water.

* Currently its use it’s expanding to TV screens, computers, mobile phones, MP3, billboards, and as light sources, to illuminate general spaces.

The importance of lighting in architecture increases every day, since the facades of new buildings, hotels, museums, gardens, plazas, streets, monuments, and many more, as well their interior, are enhanced with specific forms of illumination…… (remember that it is quite hard to make good lighting projects, both indoor and outdoor.

LEDS, the immediate future of illumination.

20 August, 2011 No Comments

LED stands for “light emitting diode”
Nowadays it is considered one of the best options to lighten a home or a building, as LEDs consume 1W, but yield like a 25W bulb.

In regards to the question “What should I choose, light bulbs or LEDs? LEDs savings against a low-energy bulb are highly superior, and also avoid waste problems  posed from normal bulbs when they stop working, as CFLs contain mercury vapor. LEDs have a long life in comparison to a normal light bulb; a normal light bulb reaches 1,000 hours of light, low-energy bulb a maximum of 10,000 hours of light and a LED can live up to 150,000 hours of light. There is a noticeable quality gap among LEDs and regular bulbs.

LEDs look better on buildings than the classic nighttime illumination does, since it does not dazzle, and the light is more intense.

LEDs are semiconductor devices that emit monochromatic light depending on the diode used. They are very versatile and can be used on facades, traffic lights (we can notice the difference of modern traffic lights with visible dots and the old traffic lights – LED based traffic lights can be seen without much effort and do not dazzle in bright days), flashlights, lights for the home, cars and even the TV remote.

In LED technology, the energy captured is directly transformed into light, not constituting a source of heat, thus referred to as cold light.

There are many buildings in Barcelona that have this kind of lighting in their façade such as:
1 – The AGBAR TOWER, whose illumination is based on thousands of LEDs, has a surprisingly low electricity bill, its light is reflected on the aluminum plates that cover the concrete surface of the building, so that what is perceived from the outside is just a reflection, because the LEDs are facing the building without projecting the light to the exterior or into the sky, thus trying to avoid light pollution in the area.


The facade is characterized by a complex lighting system that consists of strips of glass, lit by 4,200 blue LEDs, creating a transparency and reflection effect quickly associated with water. This building was awarded with the International Lighting Design Award, granted in the US for the innovative lighting effect of the building’s exterior. The project belongs to FERRATER Architects, from the architectural study OAB.

3 – W Hotel in Barcelona

Designed by architect R. Bofill, a line of white LEDs was placed all over the hotel’s facade enhancing its architectural silhouette.

There are other buildings in Barcelona that are currently testing the possibility of illuminating their facades with LEDs such as:

The Hesperia Tower Hotel, in Granvia, or the Bullfighting arena “Les Arenes”, recently rebuilt into a mall. Its perimeter will be lightened with LEDs allowing the possibility to change color depending on what kind of event is being hosted. The idea is that LED light will be projected from the inside to the outside through the horseshoe arches of the Neomudejar architecture.

Even though I suppose this type of lighting is somewhat inconvenient (not a cheap initial investment, although promises savings in the long run), it will be resolved shortly, due to the benefits that has to offer in comparison to the existing conventional lighting in the market, and not just for its designs, but for its potential savings. There is an R&D project for LED bulbs going on, in which LEITAT and The National Center for Microelectronics and Philips are collaborating with other European companies with the purpose to develop a LED-based light bulb to commercialize for household use. The project was submitted to the European Union in April of 2011.

Also, the Japanese Company Toshiba, with a wide expertise in the computer chips sector, is developing bulbs that produce LED-based lighting. The light bulb will provide the equivalent to 100 watts of light while consuming only 9, with a 3 year warranty, and providing close to 40,000 hours of life. This product is already present in France, Germany and the UK, competing with Philips and Osram. (Expansion 08.10)