News Review (3.10-3.20)

[Industry Focus] With the continuous maturity of synthetic diamond production technology and continuous improvement of production, the price of diamond products has shown a long-term downward trend, and the outstanding cost performance has continuously promoted its replacement of traditional hard material tools. Among them, oil exploration drill bits have seen the trend of diamond drill bits replacing other hard material drill bits, which can be proved in the evolution trend of Jiang Diamond shares. The expansion of downstream applications drives the rapid growth of the synthetic diamond industry. In the last century, about 50% of synthetic diamonds were used to make diamond abrasives, but with the advancement of technology and the emergence of new fields of application, the use of synthetic diamonds has expanded rapidly. Judging from the benefits of super-hard materials listed companies, the super-hard materials sector, especially the synthetic diamond segment in its sub-sectors, is more resistant to decline. The diamonds (300064) and the Yellow River Cyclone (600172) have even bucked the trend. The Bailin holographic financial game model shows that in the context of the market crash, funds are still continuously involved in the sector. News Links: Super-hard materials: high-growth plate driven by downstream. High-speed growth of wire drawing die industry China's super-hard abrasive investment is eye-catching [Web site dynamic] Year-to-date, China Superhard Materials Network strongly supports in associations, enterprises and institutions of higher learning Next, the industry influence will be further enhanced. Dr. Lan Jie, Researcher of Shanghai Xingye Securities Co., Ltd., Dr. Yan Yide, Research Fellow, Guangzhou Yifangda Fund Management Co., Ltd., Deng Qing, General Manager of Changsha Hengfeng Superhard Materials Co., Ltd., Dr. Lu Kewen, Henan University, successively visited China Superhard Materials Network, consulting The status quo of superhard materials development and discussion of cooperation and other issues. News Links: Changqing Hengfeng Superhard Materials Co., Ltd. General Manager Deng Qing is a guest of China Superhard Materials Network Dr. Lan Jie, Dr. Yan Yide to China Superhard Materials website research Dr. Lu Kewen of Henan University to China Superhard Materials Network Research [Corporate News] This issue focuses on one of the leading companies in the superhard materials industry: Yu Diamond. “Catalyst Synthesis of High-grade Diamond Key Equipment and Complete Process Technology Development Project” Zhengzhou Huajing Diamond Co., Ltd. has cooperated closely with many universities and research institutes to achieve success through more than 10 years of joint research. The project carried out systematic research and development and integration innovation in many aspects such as diamond growth conditions, special equipment, raw and auxiliary materials, and synthetic technology, which solved the problem that high-grade diamond is difficult to produce high quality and high yield, and ended the high-grade diamond dependence import for decades. The history has made China's high-grade diamond manufacturing technology a historic breakthrough and has leapt to the forefront of the world. The project won the second prize of the 2011 National Science and Technology Progress Award on February 14. In this issue, we are focusing on the well-established enterprise that is actively building a technological innovation platform and leading the cutting edge of PCBN tool technology: Fu Nike. Through its own efforts, Fu Nike Superhard Materials Co., Ltd. has built a technological innovation platform and formed a complete industrial chain. As the Henan Cubic Boron Nitride and Products Engineering Technology Center, Henan Provincial Enterprise Technology Center, and Cubic Boron Nitride and Products Academician Workstation, Fu Nike has more than 50 patents and has developed into the most professional cubic nitride in China. One of the research, production and sales companies of boron materials and cutting tools. News Links: Fu Nike: Building a Technology Innovation Platform Leading the Frontier of Superhard Tool Technology Point Shicheng "Crystal" Leading Industry [Industry Chain] News Links: Global Wind Power and Photovoltaic Industry Transfers Ceramic Products to China Trends New Trends Wen Jiabao: Vigorously Develop High-end Equipment Manufacturing Industry, new materials and other industries in China's hardware industry must work hard on technology: Qilu red stone reserves are extremely large [macroeconomics] In order to increase the policy support for SMEs to participate in government procurement, the Ministry of Finance, Industry and Information Technology in recent days The Interim Measures for the Promotion of Government Procurement to Promote the Development of Small and Medium Enterprises was issued (Cuiku [2011] No. 181, hereinafter referred to as the “Interim Measures”). Improve the proportion of SMEs' goods, engineering and services by adopting measures such as reserve purchase quota, review concessions, encourage consortium bidding and subcontracting, and promote the development of SMEs. News Links: Ministry of Finance, Ministry of Industry and Information Technology issued "Interim Measures for Government Procurement to Promote the Development of SMEs" [Editor's Vision] News Links: EU Joint Research Center released "Photovoltaic Status Report 2011" Graphene alkyne performance is superior Graphite is proposed as a national protection Sex mining

300mm Diameter Dome Lens

Our Dome Lens is an optical window composed of two parallel curved surfaces. Dome lenses are commonly used in meteorology applications, pyranometers, defence applications and often used in high pressure viewports in underwater cameras and submersibles.For this reason our dome offer both high transmission as well as durability. Other application for our dome include visible-range domes for pyranometers and infrared-range domes for pyrgeometers, and as high pressure viewports in underwater cameras and submersibles.

BK7 or K9L domes are used primarily in meteorology applications. BK7 offers excellent transmission from 300nm up to 2µm. BK7 is a relatively hard material, with excellent chemical durability.
UV fused silica domes ( JGS1 ): For applications operating in the deeper UV range, we offers a range of UV fused silica domes. Fused silica domes are commonly used in underwater applications at extremely high pressures.
Sapphire domes: For infrared applications we can provide sapphire domes. Sapphire is an extremely hard material with transmission of over 80% in the 2-5µm wavelength range. As with fused silica, sapphire is able to withstand extreme pressures, making it the perfect material for underwater camera and missile fairing applications.

Specifiation of our dome lens as follow:
Material:Optical glass N-BK7 , H-K9L, UV Fused Silica, Sapphire, and infrared crystal materials.
Diameter:20-350mm
Diameter Tolerance:+/-0.1mm
Thickness:>2mm
Thickness Tolerance±0.2~0.1mm
Center Deviation:3-5'
Surface quality:80/50 60/40
Coating: Antireflection Coating inside
Chamfers:0.2 x 45° typical

300Mm Diameter Dome Lens,300 Mm Diameter Hemisphere Dome Lens,Glass Dome Lens For Camera,Dome Lens For Subsea Shooting

China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com