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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Table lamp brightness control. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Lighting

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Looking to upgrade your table lamp? For example, equip it with a dimmer (which is especially important when watching TV) and a compact built-in socket, as a result of which the lighting device has an additional opportunity to serve as a kind of electric extension! Then feel free to get down to business. Moreover, scarce parts and assemblies are not required here. As well as solid knowledge and experience in the field of electrical and radio engineering.

The essence of the mechanical modifications that will have to be performed is clear from the illustration. A circuit diagram, as they say, is easier than you can imagine. Moreover, not only D245, but any other appropriate type (for example, D246) can be used as a semiconductor diode in it.

Table lamp dimmer
Stand-base of an improved table lamp: 1 - power key. 2 - additional switch. 3 - socket sockets installed inside the base stand. 4 - plastic plug.

Table lamp dimmer
Electrical circuit diagram of a table lamp extension cord

An additional 5V1 switch, when triggered, the table lamp will shine with maximum brightness, taken from a failed refrigerator. The X51 socket is the most common, it is placed inside the stand and has a plastic plug (sold in Svet stores),

Author: E.Dolgovekov

See other articles Section Lighting.

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In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

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Artificial eye the size of a fly 23.05.2013

Scientists and engineers at the Polytechnic School of Lausanne have created an artificial eye comparable in performance to the eyes of insects such as fruit flies. The invention opens up great opportunities for robotics and medicine, where high-speed miniature video sensors are especially in demand.

For the first time, engineers have overcome the problem of accurately aligning photoreceptors and other optical components on a curved surface. Thus, thanks to the use of microelectronics stacked in layers, it was possible to copy the complex structure of the insect's eye, albeit in large in the same dimensions.

Insect eyes are very different from human eyes: in humans, the eye consists of a single "objective lens", while in insects the eye consists of many tiny objective lenses. Of course, the human eye has a higher resolution, but the insect eye has a larger field of view, and a faster response to movement. Engineers need such video systems so that, for example, robots can instantly survey large spaces and evade obstacles with lightning speed.

The Swiss were able to create a prototype of such a device and called it CurvACE. The tiny electronic eye weighs just 1,75 grams and shoots at 150 frames. CurvACE is capable of working in high or low light mode, consumes less than 0,9 W and takes up only 2.2 cm3, which allows it to be integrated into even small robots. It is integration with robots that will be the next step for scientists. In addition to robotics, it is supposed to be used to create "smart" fabrics that change shape and provide maximum comfort, as well as to create security systems and texture recognition technologies. In general, there are many applications for CurvACE, for example, in the military they can be used in homing missiles and active protection systems, and in aviation - for collision avoidance systems.

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