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.
Specifiation of our dome lens as follow: 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.opticsrealpoo.com
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.
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
Seven years ago, the “5.21†Wenchuan earthquake was still in sight. The Nepal earthquake shook the hearts of the people of the world. Complex disasters and various emergencies are constantly testing the government's emergency response capabilities.
At present, the government has encountered various new problems in the city's emergency handling work. The problems exposed in the areas of accidents, public health, and social security have also become increasingly prominent. In order to improve the ability of the government and various industry sectors to respond quickly to emergencies and emergencies and to resist risks, the construction of a complete government intelligence emergency response platform and providing the public with more efficient emergency rescue services has become an urgent topic of concern in society.
As early as in 2005, the State Council issued the "Overall Emergency Plan for Public Emergencies" to make it clear that "the establishment and improvement of social early warning systems in response to natural disasters and social security, to form a unified command, full-featured, efficient operation The emergency mechanism will improve the ability to safeguard public safety and handling emergencies so that the government can fully perform its functions. "
The opinion of the General Office of the State Council on accelerating the development of emergency industries in 2014 pointed out that the emergency industry is an industry that provides special products and services for emergency prevention and emergency preparedness, monitoring and early warning, and disposal and rescue. In recent years, China's emergency industry has risen rapidly and continues to develop. It has played an important role in responding to emergencies. However, there are still problems such as unsound industrial systems, insufficient market demand, and slow development of key technology and equipment.
The government intelligence emergency platform relies on the e-government extranet to build an emergency communication dispatching system. The construction content mainly includes integrated command dispatching communication system, multi-channel fax system, digital recording and recording system, video dispatching system, business interface development, and other systems. Interconnection, and dispatch terminal equipment. Through the constructed emergency command and dispatch platform, the softswitch technology of the multimedia dispatch system is used to implement voice, video, and data services between the emergency command center and each cable system, wireless system, and video dispatch system, and to provide comprehensive support for the entire system. By deploying integrated on-vehicle dispatching equipment in the emergency command vehicle, the on-board command and dispatch platform can quickly reach the site of the accident in case of emergency, and can use the public network to quickly and effectively command, rescue, and dispatch, and ensure rapid, timely, and accurate collection of the site. Information provides real-time decision information for command tasks.
Then, as a set of smart emergency platforms that face the rapid development of the social situation, what kind of "wisdom" function should there be in order to help the government respond to various disasters with ease? Industry experts believe that the following six functions should be the basic criteria for testing a smart emergency system.
First, the government's smart emergency platform must include converged access of cable dispatch systems, wireless dispatch systems, and other audio and video systems. Have the ability to handle emergency command dispatching functions (such as group calls, group calls, hotlines, conference calls, intrusion, forced disconnects, monitoring, forbidden calls, etc.) and have the ability to handle multiple emergencies at the same time;
Second, the multi-facsimile system supports the simultaneous transmission and reception of multiplex faxes, confidential faxes, customizable mass-mailing, and timed sending functions, support for automatic identification of incoming faxes, automatic reminding and sending of fax prioritization, and automatic queued sending functions;
Third, the digital recording and recording system can record point-to-point video calls and video transmissions of voice communication during the dispatch communication process. Can support online play and download, transfer.
Fourth, the video dispatch system can send back the on-site monitoring images and smart phone images to the integrated command and dispatch platform, and realize the transfer of front-end back-transfer images through a comprehensive command system.
Fifth, provide system development interfaces and integrate with emergency platforms.
Sixth, the emergency communication system adopts multi-line backup design to support the backup of various communications lines such as the government extranet, PSTN, GSM/CDMA/3G, wireless clusters, and satellites to ensure reliable and unblocked communications.