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Future smartphone lenses are not only likely to come out of the fuselage, but will be too small to be seen! The Harvard University team has developed a metamaterial lens that is 1/100000 of the thickness of traditional glass lenses and has little weight. If it can be widely used, the future of smart phones, cameras will become super thin. Gizmodo and Digital Trends 3 reported that the high-end camera is extremely bulky, because the camera is filled with thick lenses, so heavy. The traditional curved glass lens, put light onto the photosensitive element camera lens, the image, the more expensive the better, because of the production process requirement of precision grinding and polishing, there can be no error, high price. Harvard developed metamaterials that do not use glass. They are filled with columnar titanium dioxide on transparent quartz, only 600 nanometers high, known as the world's "mini Stonehenge."". These titanium dioxide are arranged in a special way, although it is flat, but can focus on the light like an arc glass lens, and thinner than the hair, as light as air. The Harvard team test found that the ultra - material lenses were sharper than the 55 millimeter microscope, with only 1/100000 of the thickness of the traditional lenses. Not only that, but the cost of making Harvard's new lenses will be quite cheap. Titanium oxide is not a rare raw material. It is actually white paint for painting, and it can be produced in large quantities like wafers. Harvard professor Federico Applied Physics and motor Capasso said that this technology is a revolutionary innovation potential, applicable to all visible light, can replace a variety of lenses, such as microscope, camera, display, intelligent mobile phone etc.. As long as a small fraction of traditional lenses are expected to be produced on a large scale in the future, the cost of ultra - material lenses will be produced in the form of wafers. This also means that, after mature technology, digital SLR camera (DSLR) lens will be inserted into the smart phone, smart phone photos will be more functional.
A lot of pictures of the scene of the accident, or what foreign objects hit the window, will be "crack and not broken", you observed? Automobile glass has many functions, not only to provide good vision for drivers, but also to protect drivers and passengers from the wind and rain. It provides a good driving environment for passengers in the car, and it is also one of the safety facilities of the car. Automotive glass requires good line of sight, sufficient strength, protection for passengers when accidents occur, and it also requires abrasion resistance, heat resistance, sealing and sound insulation. Sandwich glass When a windshield is suddenly struck by a foreign object, it does not break into pieces like ordinary glass and splashes everywhere, but only cracks appear. Why is the windshield of a car different from ordinary glass? This is because the windshield is made of laminated glass. Laminated glass is a layer or several layers of PVB (polyvinyl butyral) resin film sandwiched between two or more pieces of glass, a composite glass by heating and pressure bonding. Commonly used laminated glass generally has 3 layers. Laminated glass has high strength and toughness, strong impact resistance and high transparency. Once broken, two pieces of glass inside and outside of the glass can still be bonded to the PVB and will not cause harm to the human body. Laminated glass is a great invention in the history of automobiles. Since its birth, laminated glass has saved countless lives. Toughened glass Toughened glass is a kind of high strength glass made by quenching the flat glass or float glass to the point of softening. The contrast between tempered glass and ordinary glass. It can be seen that compared with the sharp sharp points formed after the breaking of ordinary glass, the fine particles formed after breaking the toughened glass greatly reduce the harm to the human body. But the tempered glass in the storage and use, because of the "stress" effect of prone "explosive" phenomenon, and after the collision, the crack network is too dense, the glass is easy to fall, increasing the risk of occupant injury, so the area of toughened glass emerges. Zone tempered glass Generally used as the front windshield of the car, the safety is not as good as laminated glass, but for automobile manufacturers, the cost is lower. The ordinary tempered glass is unfit for the front windshield glass, because it will be broken into a pile of broken leaves, like a waterfall cascading, blocking the driver's line of sight, is not conducive to the emergency situation.
Glass corner of the most vulnerable by the external shock will explode 1. glass quality is not pass The stress intensity of the glass is weakened by the presence of more impurities. In addition, toughened glass in the machining process, improper operation will cause scratches, blow mouth, deep edge defects lead to tempered glass explode; 2. installation is not in place Installation of the problem leads to a certain degree of inclination of the glass or a change in the shape of the glass artificially. Installation of metal parts and glass contact position no gasket as a buffer, resulting in direct metal and glass friction will cause the explosion; 3. daily use without attention Use the medium and long term to open or close the door improperly, or the corner of the glass is hit hard, not repaired in time. Because of the sharp objects impact, rapid temperature changes and other reasons will cause the glass shower room there blew. Preventive measures. Avoid self stick explosion-proof membrane glass splash 1. install the glass door properly The size and shape of tempered glass are determined before tempering, and the glass can not be cut after tempering. When installing, pay special attention to the metal parts, do not contact the glass directly, and put a cushion between the two as a cushion. 2., glass explosion-proof film The effect of the explosion-proof film is not to prevent the glass blew, but does not let the glass blew glass splash caused personal injury. Put the explosion-proof membrane glass even blew will not immediately fall, but the whole piece remains the same, but can see the broken glass after lines. 3., focus on the protection of glass corners The strength of tempered glass gradually decreases from center to periphery, which is why the striking point of bus glass is on the corner. Therefore, it is important to protect the edges of the glass so as to avoid sharp objects impacting on the corners. Once a small crack is found on the glass, do not handle it yourself and immediately replace the entire piece of glass with the merchant. How to identify. Under polarized lenses, toughened glass will have colored light stripes Xi'an min Rui glass Chen Xifeng said the person in charge of using polarized light film can distinguish the toughened glass, the polarized light sheet after bending the card in the glass on the edge of the glass encased observation center will appear color light. But polaroid is generally used in computer monitors, which are difficult for ordinary people to acquire. In life, if you want to distinguish tempered glass, the easiest way is to wear a polarized color sunglasses, see the toughened glass will have colored stripes.
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Shenzhen city Rio Optical Electronics Co. Ltd. was established in 2005, factory is located in Fuyong town Baoan District Shenzhen City, the company has more than 700 employees, more than CNC150, is a professional manufacturer of mobile phone fingerprint lens, camera lens, acrylic lens, battery cover manufacturers. The company has passed the ISO9001:2008 and ISO14001:2004 version of quality management system certification. "Pragmatic, innovative, efficient, high-quality service" is the company all the staff of Rio has been pursuing the purpose.......