camera lens

The principle of lens coating: By forming thin film layers of different thicknesses on the surface of the lens, the reflection and interference of light between the thin film layers can make the phase of light of a specific wavelength destructively interfere, thereby reducing reflection. This way, the lens can more effectively pass through the light, reduce the loss and scattering of light, and improve the contrast and clarity of the image. Lens coating has the following benefits: 1.Improve light transmittance: Coating can reduce the reflection of the Camera lens surface, improve light transmittance, make the image brighter and clearer, and reduce light loss. 2.Suppressing light scattering: Coating can reduce the scattering phenomenon on the lens surface, avoid light interference inside the lens, and improve the contrast and detail clarity of the image. 3.Anti-scratch and anti-fouling: Coating can increase the hardness and anti-scratch performance of the lens surface, effectively protecting the photographic lens from scratches or contamination, and prolonging the service life. 4.Reduce halos and ghost images: Coating can effectively reduce the generation of halos and ghost images, making the image more realistic in color and clearer in detail. 5.Improve color reproduction performance: Coating can improve the dispersion properties of light, improve the lens's ability to restore color, and make the captured image more vivid and natural.  

Standard Zoom Lens: Standard zoom lenses usually cover a wider focal length range, such as 24-70mm, and are suitable for shooting various scenes such as daily life, travel, and landscapes. Wide-angle Lens: A wide-angle lens has a wider field of view and is suitable for shooting scenes such as landscapes, buildings, and large groups. It can also be used to create special perspective effects. Portrait Lens: Portrait lenses usually have larger apertures and focal lengths, such as 50mm f/1.8 or 85mm f/1.4. These lenses can produce a shallow depth of field effect, making the subject stand out from the background. fixed focus lens: fixed focus lenses have a fixed focal length, such as 35mm, 50mm, or 85mm. They typically have wide apertures and offer excellent image quality and good low-light performance. Telephoto Lens: A telephoto camera lens has a longer focal length, such as 70-200mm or 100-400mm, and is suitable for shooting distant subjects, such as sports events, wildlife, etc. Macro Lens: Macro lens is specially designed for photographing very small subjects, such as insects, flowers, etc. They offer high magnification and excellent detail capture. Fisheye Lens: Fisheye lens has a large viewing angle and can capture panoramic images or produce strong distortion effects. It is often used for creative photography or specific shooting needs.

When we think about the performance of an optical lens, clarity, precision, and reliability immediately come to mind. However, what many people don't realize is that a large part of a lens's performance depends on something they can barely see: the optical coating. Whether you're working with an automotive camera lens, a surveillance lens, or a wide-angle lens, the coating plays a critical role in ensuring the final image meets the highest standards. At its core, optical lens coating is designed to enhance light transmission and reduce unwanted reflections. Without coatings, lenses would lose significant amounts of light due to surface reflections—up to 8% per glass-air interface. In high-end imaging applications, such as car dvr lens or passenger monitoring systems, even a small loss of light or increase in glare can result in poor image quality. Anti-reflective (AR) coatings minimize these issues, allowing lenses to deliver sharp, high-contrast images even under challenging lighting conditions. Lens coating is mainly applied to the processing surfaces of automotive lenses and filters. Its principle is to use vacuum deposition technology to lay a very thin and transparent film on the lens. The main function is to increase the light penetration.The benefits of lens coating are to improve transmittance and control glare. Usually, lenses coated with a single layer of film appear blue or red, while those coated with multiple layers are greenish or dark purple. Generally, optical lens manufacturers take into account the durability of the coating. The outermost layer of the coating has the properties of anti-scratch and anti-oil stains. Different applications require tailored coating solutions. For example, in the case of a surveillance lens used for 24/7 security monitoring, durability is essential. Coatings must not only enhance performance but also withstand environmental challenges like humidity, dust, and extreme temperatures. Meanwhile, for a fisheye lens designed for 360-degree imaging, coatings are carefully engineered to maintain consistent optical performance across a wide field of view, preventing color shifts or image degradation at the edges. Advanced optical coatings also serve specialized functions beyond simple anti-reflection. Hydrophobic coatings can make lenses water-resistant, an essential feature for outdoor automotive systems and car dvr. Infrared (IR) cut coatings are critical for sensors that need to block invisible infrared light to maintain accurate color reproduction, especially important in smart home devices and ADAS (Advanced Driver Assistance Systems). Choosing the right optical lens coating is not just a technical decision; it is a strategic one that can directly impact the success of a device in the field. As optical lens manufacturer, we focus on optimizing coatings for each lens type to ensure that whether it’s a compact surveillance lens, a rugged automotive camera lens, or an expansive wide-angle lens, the product delivers exceptional performance in real-world conditions.