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Curved OLED TV from Samsung

02.07.2013

Samsung Electronics is launching its first curved LED (OLED) TV in the South Korean market. The 55-inch model will go on sale for 15 million won, which is about $13. This is more than 5 times higher than current LCD TVs.

Kim Hyunsuk, head of Samsung's TV business, believes consumers are willing to pay extra for the picture quality the new TV offers. "OLED is about image quality first and foremost. We are confident that we have achieved excellence in this area," he said.

Samsung insists that the image on a curved TV is devoid of distortion due to the fact that each point of the image is equidistant from the viewer's eyes, unlike a flat TV. The company believes in the concept so much that it even pushed back the launch of its first commercial OLED flat-screen TV to next year.

Meanwhile, Samsung is not the first to launch a curved TV on the market - LG Electronics managed to do it earlier. LG began accepting applications for a curved OLED TV in South Korea in April 2013. It is currently priced at 15 million won. In the near future, the vendor plans to bring the new product to the world market. Samsung, in turn, plans to start selling the device outside of South Korea in July 2013.

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Wrist atomic clock 08.10.2013

The American watch company Bathys Hawaii presented the first watch with an atomic precise time source Cesium 133 (cesium-133 atom is used as a standard).

A watch measuring 60x50x23 mm provides a rate accuracy with a maximum deviation of one second per thousand years (the frequency accuracy of an atomic source is 5x10^-11). The creators of the watch estimated the serial model at 12 thousand dollars apiece. A total of 2014 Cesium 20 units are planned for production in 133.

At the heart of the clockwork is a compact SA.45s chip from Symmetricom, inside which is a capsule with gaseous cesium-133, a laser and photosensitive elements. The electronic unit of the device fixes the periods of electromagnetic radiation during the transition between the levels of the ground state of atoms of the gas heated by the laser. These periods are the SI standard for measuring time.

Bathys Hawaii engineers provided the microcircuit with the necessary power source - a lithium-ion battery (the operating time without recharging is not specified). To display the time, an arrow dial with an indication of the phases of the moon is used. The weight of the watch is not reported, but the weight of the SA.45s chip is 35 grams.

In May 2013, the British company Hoptroff announced the first pocket atomic watch, which was supposed to fit in a round case with a diameter of 82 millimeters. The clock was supposed to use a similar Symmetricom chip. Whether it was possible to release this watch is not reported.

It is worth noting that at present there are already models of wristwatches that show time with the accuracy of an atomic source. In these so-called "radio clocks", accurate time signals are received wirelessly from a system of transmitting base stations with atomic clocks.

The error of a watch with a digital indicator is no more than one second for three million years
Earlier in September, it became known that German physicists managed to achieve a record synchronization of two atomic clocks over a fiber optic cable with an accuracy of 10^-19. At the same time, the accuracy of modern stationary atomic clocks is 10^-16.

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