With the growing popularity of megapixel cameras in recent years, the demand for high-resolution imaging solutions has significantly increased. Beyond traditional sectors like transportation, emerging applications such as city surveillance have also turned to HD systems as their top choice. As the market becomes more competitive with a wide range of products from various security vendors, users often face the challenge of selecting the right lens that meets their specific needs.
Historically, the movement mechanisms in camera systems were dominated by Japanese and South Korean manufacturers, including Sony, Hitachi, Sanyo, LG, Samsung, and CNB. Key components such as the motor, which accounted for nearly half the cost, were controlled by companies like Nagano, Tenglong, and Canon. Similarly, critical parts like CCD and CMOS sensors were largely monopolized by Sony and U.S.-based multinational corporations. Core technologies such as high-end autofocus algorithms and night vision illumination remained out of reach for domestic manufacturers until recently.
In response to these challenges, several leading national security companies have invested heavily in R&D, achieving breakthroughs in independent development of main control boards, lenses, optical design, and production. This shift has allowed them to reduce reliance on foreign suppliers and improve overall system performance.
When it comes to automatic zoom lenses, the global market is still largely dominated by Japanese brands like Dragon, Nagano, and Canon. However, some domestic manufacturers in Shenzhen have made significant progress through their own research and development. These companies now offer a wide range of features such as automatic aperture, IR-CUT switching, multi-layer coating, aspherical surfaces, low dispersion, and large apertures (F1.6-F3.2). Their lenses are not only cost-effective but also compact, making them ideal for a variety of applications.
Domestic optical technology has also seen remarkable improvements. For instance, a leading Shenzhen-based manufacturer uses high-refractive-index, low-dispersion materials combined with multiple aspherical lenses. This approach effectively minimizes spherical aberration, ensuring high resolution and contrast across both the center and edges of the image. The viewing angle ranges from 60° down to 2.7°, offering flexibility for different use cases.
In terms of photoelectric image processing master control boards, domestic manufacturers still face challenges in achieving full independence in R&D and production. They remain dependent on foreign components to some extent. However, many domestic companies have developed customized control board solutions tailored to the needs of local security firms. For example, one major manufacturer offers three different control board options: EFFIO-E (economy), EFFIO-S (standard), and EFFIO-P (professional), each designed to meet varying levels of performance and budget requirements.
Through continuous innovation and technological advancement, the domestic security industry is gradually closing the gap and building a stronger foundation for future growth.
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