The "May 1st" Shencheng is full of lights and charming nights. The reason why the lights on the elevated, shopping malls and stadiums are bright is because they use the new light source technology of the 21st century--metal halide lamps, and one of its developers is the founder of China's electric light source business, Shanghai. One of the first batch of labor models, Professor Cai Zuquan of Fudan University Electric Light Source Institute. On the eve of Labor Day, the reporter opened the door of the 82-year-old inventor and found that Cai Lao couldn’t sleep for a moment. He smiled and said: “It’s just right, look at my new invention 1
Changed from apprenticeship to founder
Many middle-aged Shanghainese people still remember that in the 1960s, there was a “man-made small sun†in the People’s Square. This long-arc light was called the Chinese’s “gas of gloryâ€, and the inventor Cai Zuquan became famous. The name of "China Edison". Although he was the vice president of Fudan University and a professor of electric light source, Cai Lao still said modestly: "I am an authentic worker."
When Cai Zuquan became an apprentice at the 14-year-old drug factory, he only had a third-grade primary school culture. After blowing glass bottles for more than ten years, Zheng Changshi and Fang Junxin, professors of the Department of Physics of the Jiaotong University, who worked part-time in the factory, were treated by the two professors and they were transferred to Jiaotong University as assistants. "Pneumonia was a refractory disease at that time. If X-rays were used, it would be early to find early treatment. But at that time, foreign countries blocked the technology in China, and Fang Junxin took my self-reliance to do X-ray tube, which also made me realize the importance of research and development. To be strong, we must innovate independently."
In 1952, the department was greatly adjusted. Cai Zuquan went to Fudan to set up China's first electric light source laboratory. The first hydrogen lamps, high-pressure mercury lamps, xenon lamps, long-arc xenon lamps and energy-saving lamps in China were born from his hands. Today, 80% of the world's energy-saving lamps are produced in China, and the annual output of Chinese lamps reaches 8.1 billion. Cai Laogong is indispensable.
Do not make the invention uncomfortable
Cai Lao’s home is a sea of ​​new lamps. Cai Lao pointed at the faint blue light on the porch and said: "My house is almost entirely energy-saving lamps. It is better for us to do it ourselves. The children are now dealing with the light. The eldest son is the general manager of a private lighting company and the daughter is another. The lighting engineer of the company."
Since retiring in 1992, Cai Lao has basically issued a patent every year. In 2002, Qian Peisheng, Chairman of Dongsheng Electronics Group Co., Ltd. established a technical center and testing center, and invited the retired professor of Fudan University and the chairman of the Municipal Lighting Society Zhang Haijun as the director of the technical center. Professor Zhang Zhang, who was unable to live without it, came to Dongsheng, thus reviving the second spring of the old inventor.
In 2003, he and Professor Zhang developed a portable UV germicidal lamp, which was approved by the Ministry of Health and applied for a patent for invention. It will be introduced to the market this year, bringing convenience and peace of mind to tourists. Cai Lao said: "I am going to the company's laboratory every week for two or three days. The light source business is a bright career, and it is also my biggest hobby in my life. I don't feel uncomfortable when I am invented."
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Waterproof Vertical Mount D-Sub Connectors
waterproof D-sub system is IP67 rated. These panel-mount connectors are available in solder cup as well as right angle and vertical PCB mount types. The cable-mount connector kit includes the connector, which has solder cup contacts. These connectors are available in 9-, 15-, and 25-positions in standard density and 15-, 26-, and 44-positions in high density. The recommended wire gauge for the solder cup connector is 22 AWG to 26 AWG.
These panel-mount waterproof D-subs are designed for rear-mount applications in panels that are up to 2.0 mm thick. They come with two sets of jackscrews. One jackscrew set is 5 mm long for panel thickness up to 1.2 mm, and the other is 6 mm long for panel thicknesses from 1.2 mm to 2.0 mm.
Cable mount D-sub connector kits come with the backshell, seal, thumbscrews, and solder cup connector. They are also easy to install. Simply fit the cable through the backshell, terminate the wire to the solder cup contacts, and hand tighten the cable nut on the rear of the backshell. The backshell will seal a particular range of cable diameters depending on the position count of the connector. Consult the datasheet for specific cable diameter ranges.
Specifications
Current rating
Standard D-sub: 5 A
Hi-density D-sub: 2 A
Breakdown voltage: ≥ AC 500 V/1 minute
Insulation resistance: ≥ 500 MΩ @ DC 500 V
Contact resistance: ≤ 20 mΩ
Material
Contacts: copper alloy, gold-plated
Connector body: nylon 9T or PBT, UL Recognized
Shell: steel, nickel-plated
Applications
DV camcorder
DV VTR
Non-linear editing system
Broadcast monitor
Betacam deck
Panel Mount Waterproof D-Sub Connectors:
Water Proof D-Sub, Standard Density, Male, Panel Mount
Water Proof D-Sub, Standard Density, Female, Panel Mount
Water Proof D-Sub, Standard Density, Female, PCB Mount
Waterproof solder cup, stamped & formed contact D-sub waterproof
solder cup,machined contacts D-sub waterproof
Vertical Mount Waterproof D-Sub Connectors:
Combo Power + Signal D-Sub Connector, Vertical Mount, Pluge Type,
right angle D-sub waterproof
IP67 rated Combo power D-sub waterproof
Standard Density, Waterproof Vertical Mount D-Sub Connectors, High Density Waterproof Vertical Mount D-Sub Connectors,IP67 D-Sub Connectors Vertical Mount,Board Mount Waterproof Vertical Mount D-Sub Connectors
ShenZhen Antenk Electronics Co,Ltd , https://www.antenkcon.com