Lamp-book. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Lighting
Comments on the article
Sitting down at your desk to work, you remove a thick book from the shelf and open it. But what is it? It turns into... a small lamp! It turns out that behind the book cover there is a socket with a light bulb, a cord with a switch and a soft accordion lampshade. It is enough to slightly move the cover flaps - and the miniature original lamp is firmly located on the foot, giving even local light to the workplace. The Hungarian magazine "Ezermeshter" advises you to get such a lamp - it is compact and easy to use: you can use it and put it away in the book row.
Anyone can make such a light book, since the device is extremely simple and does not require any scarce materials or parts.
You can start with the cover, especially since everything will be mounted on it. Binding cardboard and any decorative paper for pasting it - all that will be needed for the cover. The work is no different from ordinary bookbinding. The crusts and spine are cut from cardboard, which are connected using glued strips of thick fabric or calico. The outer (front) side of the cover is covered with decorative paper, and the inside with white paper or foil: this side will play the role of a reflector for better reflection of light (after all, the light bulb will be a “minion”).
We leave the prepared cover to dry under the press, but for now let’s work on the electrical part. Since it is assumed that the lamp will be as close as possible to the workplace, it does not need a powerful lamp (and it is unsafe to overheat the cardboard base). Therefore, you can take a “minion” socket with a light bulb of no more than 40 W.
The binding part of the work is making the cover: A - gluing the spine blank; B - lining with decorative paper; B - design of corners
For the cartridge on the spine of the cover, we will make a simple bracket, bending it L-shaped from tin: its narrow and short horizontal part is intended for installing the cartridge, and the wide vertical part is for attaching to the spine using rivets or M2 screws. It will also act as a reflector and protect the spine from overheating. Connecting the cartridge to the bracket is not difficult.
All that remains is to form the lampshade. It can be made from the same decorative paper that was used to cover the cover, or any thick paper such as whatman paper. First, from two glued sheets of ordinary typewritten paper, we cut out a blank in the form of a fan and lay down the folds so that they are wider towards the wide part of the fan, and correspondingly narrower towards the narrow part. We apply the edges of the resulting fan to the cover, trim off the excess and use the blank as a pattern for forming a lampshade from the main paper.
Folding a paper accordion (A) and forming a lampshade from it (B)
Fastening the reflector bracket: A - riveting the workpiece to the spine; B - lighting part assembly; B - finished lamp
We glue the edges of the resulting accordion to both halves of the cover so that the light from the light bulb does not hit the eyes, and there is a hole in the lampshade at the spine above it for ventilation. On the lower corners inside the cover we will glue safety wooden bosses that limit the approach of the lamp “folds” when folding this pseudo-book.
See other articles Section Lighting.
Read and write useful comments on this article.
<< Back
Latest news of science and technology, new electronics:
Machine for thinning flowers in gardens
02.05.2024
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.
... >>
Advanced Infrared Microscope
02.05.2024
Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>
Air trap for insects
01.05.2024
Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>
| Random news from the Archive Ice cold fuel for a fusion reactor
17.03.2020
Bombardment with pellets of frozen hydrogen proved to be more effective than injection of gaseous deuterium and tritium to operate a fusion reactor, physicists at Princeton University said.
Scientists conducted research on the DIII-D tokomak experimental thermonuclear facility. To bombard with frozen hydrogen granules, physicists built a special "ice gun" that fired them directly into the plasma. The traditional way of supplying fuel in the form of deuterium and tritium in a gaseous state reduced the temperature and density of the plasma. Whereas ice fuel did not cause such a negative effect.
Physicists believe that when gaseous portions of fuel are introduced, their flow is hindered by a specific reverse exhaust from the plasma layer surrounding the zone where thermonuclear reactions take place directly. When firing frozen pellets, the fuel was delivered to the desired zone without a plasma response.
In the conclusions of the study, scientists suggested that frozen water will become the most convenient and efficient fuel for future fusion reactors.
|
Other interesting news:
▪ Bad sleep hurts love
▪ An artificial nerve cell has been created
▪ Algorithm for Predicting Turbulent Flows in the Solar Atmosphere
▪ Microbes against caries
▪ WD Purple 6TB Hard Drives
News feed of science and technology, new electronics
Interesting materials of the Free Technical Library:
▪ section of the site Visual illusions. Article selection
▪ article Swap a cuckoo for a hawk. Popular expression
▪ article What is a vacuum? Detailed answer
▪ article Bilberry myrtle. Legends, cultivation, methods of application
▪ article Kettle automatic switch. Encyclopedia of radio electronics and electrical engineering
▪ article Electrical installations for special purposes. Electrothermal installations. Plasma-arc and electron-beam installations. Encyclopedia of radio electronics and electrical engineering
Leave your comment on this article:
All languages of this page
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua
2000-2024
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese