Laboratory of three-dimensional image reflection

 Supervisor: Edward Garegin Melikyan, Ph.D., leading scientific-worker.

Laboratory staff: Marat Alexanyan, Ph.D, scientific-worker, Ashot Arakelyan engineer-designer.

Address: 375009 Armenia, Yerevan; Terevan st. 105, SEUA, bld. 17   phone +(3741) 344427

E-mail: meledi2000@yahoo.com;

 meledi@1x2yerphi.am

Trends of Investigations and Elaborations:

The laboratory of  three-dimensional displays is organized on the basis of the laboratory of tenzo semi-conductor devices founded in 1978. Until 1991 the laboratory worked out semi-conductor microminute highly-sensitive sensors of different physical quantities to create small-sized devices for special purposes. Since 1993 the laboratory has been engaged in elaboration of large-scale displays for mapping two-dimensional coloured images, but since 1996 investigations on  creating displays for mapping real three-dimensional images has begun in the laboratory. Since 1999 elaborations on the creation of three-dimensional displays has begun to develop intensivly in the USA, Russia and South Korea. Up to now in the first two countries experimental models of such displays on the basis of fast rotating screens and laser illuminants have already been created. They are rather expensive.

It’s quite enough to note, that the display developed in the USA with a volume of light-radiating space not more than 0.1 cubic meters, cost 3 million dollars. We’ve chosen another principle for obtaining 2 and 3 dimensional images, and the displays on such a basis will be much cheaper than the ones mentioned above.

Attention: Copying  the installations described below is forbidden! The circuits of specially bright light-emitting diodes serve as the main light-radiating elements. They are fixed on definite axes and rotate in space quickly. Each light-emitting diode is fed by a specially programmed current and emits light at a given space spot as a result of what the observer has an illusion of the presence of illuminant three-dimension image in the space. The application of light-emitting diodes is justified by presenting detailed images. In other cases (for example, in installations of decorative illumination, in electric sign displays, in the devices of colour music accompaniment of concerts; in the illuminants of light-colour fountains)  linear  light sources can be used. A joint application of point and linear light sources is also possible. This makes the structure of such displays simpler. The main advantages of the displays worked out by the laboratory are: the low cost: the small power consumption; the structural simplicity: the possibility of creating large-scale installations: The mock-ups of the above described displays have been worked out and made by us. In figure 1, some photos of light-dynamic subjects are introduced. In figure 2, the mock up of a  one-colour volume display with light-emitting diodes is presented. It introduces an ornamanted goblet together with a running line. The whole text is illuminated only by five light-emitting diodes. In figure 3 a variant of displays with three coloured linear light sources is introduced (blue-straight, red and green-oval), which  turn on (for a short time)  8 times at one revolution of the display disk, the red lamp is strictly in the same position, while the blue and the green lamps are with some phase outstrippings  and lags. This brings to the illusion that the blue and green images rotate in different directions.

Besides displays with fast rotating  light sources we have created displays and devices for dynamic decorative illumination with immobile light sources. The usage of standard lamps (instead of widely-spread neon lamps) of “daylight” with white or coloured luminophors is an innovation in these installations. They work in pulsatory regime (the glow duration is from 2 per/second to 10m/s, the pulsation frequency is from 0,01 to 400 ).

The laboratory staff is rather experienced in making microminiature articles, mechanisms and machines for various purposes, and in case of interested organizations we can develop the corresponding devices at their request.

Publications

1.     Ìåëèêÿí Ý., Êàçàðÿí Â.  Ðàçðàáîòêà íîâûõ òèïîâ óñòàíîâîê äëÿ äèíàìè÷åñêîé äåêîðàòèâíîé èëþìèíàöèè è äèñïëåÿ äëÿ îòîáðàæåíèÿ ðåàëüíûõ òðåõìåðíûõ èçîáðàæåíèé//

Êîíâåðñèîííûé ïîòåíöèàë Àðìåíèè è ïðîãðàììû ÌÍÒÖ:

Ìåæäóíàðîäíûé ñåìèíàð, Äîêëàäû ×àñòü 2. Èçä. Íàöèîí. Àêàä. Íàóê Àðìåíèè, Åðåâàí    2000.Ñ.229-233

2. Ìåëèêÿí Ý. Two New Facilities for Decorative Light Illuminations

Ñïðàâî÷íèê “Armenian Hi-Tech Directory.”-Åðåâàí: Òèãðàí Ìåö, 2000. Ñ. 99-100.

3. Ý. Ìåëèêÿí Super-High-Sensitivity Miniture Tensodiode and Tensotransistor Mechanoelectrical Transformers:

Ñïðàâî÷íèê “Armenian Hi-Tech Directory.” Åðåâàí: Òèãðàí Ìåö, 2000. Ñ. 113

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