Security surveillance cameras offer a plethora of features designed to enhance their functionality and performance in various scenarios. These features ensure that cameras are capable of capturing clear and detailed images even in challenging conditions. Here are some key features commonly found in modern security surveillance cameras:   **1. Minimum Illumination** The minimum illumination refers to the level of light required for a camera to capture clear images in low-light conditions. A lower value indicates higher sensitivity and better performance in low light. National standards define the brightness sensitivity of color cameras as the minimum illumination...

In today's fast-paced world, ensuring safety and security is of utmost importance for both individuals and businesses. As a leading brand in surveillance equipment, OHWOAI has been at the forefront of providing cutting-edge solutions to meet the evolving needs of the security video surveillance industry. With a wide range of products, including DVRs, security cameras, and complete surveillance systems, OHWOAI is committed to safeguarding homes, offices, and various industries.   DVRs - The Heart of Surveillance: At OHWOAI, we understand the significance of DVRs (Digital Video Recorders) in modern security systems. Our DVRs offer advanced features,...

**1. Imaging of Surveillance Cameras**   The spectral power distribution with a central wavelength of 830 to 950nm and a half-peak bandwidth of around 40nm falls within the near-infrared spectrum, which is within the perceptible range of standard CCD and CMOS sensors. Consequently, real-time monitoring is possible both during the day and at night. As any object above absolute zero (-273°C) emits infrared radiation, CCD or CMOS sensors can detect both visible and infrared light during the day. Based on the principles of light refraction, longer wavelengths exhibit smaller refractive indices, while shorter wavelengths exhibit larger...