Mention safety monitoring system, from convenience stores and the size of the small shops and supermarkets, Banks, such as building interior surveillance system to street, frontier defense, fire control, such as outdoor surveillance system, its usage is quite broad. Depending on the setting place, of course, security monitoring system facing the environment is also quite big differences. Have such as indoor fixed-point monitoring needs clear and large field of view Angle of the image capture, also have outdoor fixed-point observation needs from wide Angle to telephoto, achieve rapid and smooth switching application example of the focal length.

At this point, the Angle of view and the focal length is very important. These elements are not decided by the performance of the camera, but is decided by the performance of the lens. That is to say different lenses, captured images will differ greatly. Even in terms of performance, because of the different lens quality, color reduction and image clarity imaging performance will also differ greatly. Although along with the improvement of image processing technology, people have to compensate the image can easily handle, but if the original image quality is not good, even if again late high levels of processing, also can't get the ideal image. Therefore, plays a very important role.

For imaging equipment, according to the different USES lens is quite important to choose the best performance. Undoubtedly, the best cameras and lenses with high quality image can be obtained. That is to say, in order to achieve high performance monitoring, on the good camera equipped with a good lens is an indispensable condition.

Diversification of high quality surveillance camera

Accompanied by a security monitoring system of higher precision, CCD camera and lens equipment used, as well as the progress of image processing software, people can also is very difficult in imaging environment satisfactory image capture. Current monitoring conditions is also required by all kinds of: such as the national border alert, HaiFangXian monitoring by vast logarithmic kilometres afar image capture; Indoors and narrow space, streets and squares spacious space, even dusk and night dark place such as monitoring, etc. Have diversified to meet user needs of technology and the corresponding product is quite important. From under the advanced technical support of high quality, high ratio zoom lens to based on the mass production to realize low cost affordable lens. FUJINON as one of the excellent integrated optical manufacturer, has the quite rich camp monitoring with CCTV camera products.

Now in the market of small, lightweight, high-performance "prime lens series," using aspheric lens for small and large diameter after zoom lens (a variety of focal length) series; Have used for monitoring purposes, to achieve the world's highest rate of up to 60 times electric zoom lens series; Also can use day and night and the night under camera lens series and disaster prevention, etc. At the same time also can see the use of high performance in television 3 CCD camera with lens series, can implement high performance servo operation of camera series and so on.

To achieve high quality, small, lightweight camera integrated optical technique

Now, using the main technical points of the CCTV camera market required is high quality, miniaturization, lightweight. So, in order to achieve these requirements, in each working procedure such as design, processing and assembly all must have a high level of technical ability.

Removed some monitoring with CCTV lens incorporates in the production of high definition TV, digital terrestrial broadcasting, digital movies and other cutting-edge broadcast the lens used by accumulated rich experience, also includes optical design, lens grinding processing technology, aspheric surface molding technology, and support the above mold processing technology, processing technology, improve the optical transmittance of the lens body of the coating (antireflection film) technology, precision assembly technique, to correct evaluation of lens performance test technology and so on.

Play five million pixels high performance ability of CCD camera lens

In order to better play to five million pixels CCD camera performance, have manufacturers launched on the market coupled with the use of high-performance lens, difficult to achieve high resolution monitor implementation ever and high precision of image processing. One of the application form is used a fisheye lens wide-area surveillance.

Fish-eye special ultra wide Angle is 185 °, such as on a wall after using the fish-eye camera can be monitoring the whole room. If on the other side set another using fish-eye cameras, can be all-weather realize no corner of the image input, this for indoor narrow cannot use multiple cameras but also attaches great importance to the security needs and must be monitored place is the best system.

At this point, the use of image processing software to zoom in the images taken by, past the resolution of the CCD camera lens can't get enough. And after using the high resolution fisheye lens series products, with a high degree of optical technology and the best design, can achieve five million pixels high resolution CCD camera ability into full play. In addition, by adopting the image display-equalized F segmentation approach, using image processing software can easily realize the picture, also appeared on the market at the same time corresponding to various video formats (1/2 ", two-thirds ", 1 "), in order to make the build system can maximize the camera performance.

The use of the actual cases such as the subway entrances, indoor and outdoor place such as arcade, at this point is very effective monitoring and can achieve very high image quality, give full play to realize the power of wide-area surveillance.

High ratio of 60 times electric zoom lens

Monitoring of coastal defense will require the distance, the night also can realize distinct capture optical performance. To the requirement of such difficult to achieve, some manufacturers developed for monitoring the camera using the high ratio of 60 times electric zoom lens "nikon D60 x 12.5".

Through the use of special optical glass and radio with the height of the lens produced by the long focal length of optical technology to achieve the monitoring. 750 mm (using the zoom extension mirror of up to 1500 mm) of 3 km distance can clearly identify the distant figures. In addition, the newly developed special wide band shell, after nearly red outlands can also ensure sufficient optical transmittance. Even in 0 Lux light, through the use of infrared lamp can also be the distinct image. In addition, through a unique development manufacturer of automatic compensation device color, can choose a variety of wavelengths in the infrared lamp (700 ~ 1000 nm), in infrared light inaccessible also can capture the image of the Ming this over a long distance.

At the same time, due to the high ratio reached 60 times, nature is hard to avoid cause equipment becoming larger, but the figure of the lenses with unique optical design, realized the small, lightweight, and can design to the existing small shell. In order to build small remote surveillance system 24 hours a day. Considering the zoom operations such as connection with existing surveillance camera system, the corresponding control method developed by China central television (CCTV) controller and can realize micro control whole servo control. At the same time, also can be used to implement the serial port of PC control.