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The Function of the Diaphragm within the Optical System
The primary functions of an aperture in an optical system encompass limiting beam aperture, restricting field of view, enhancing image quality, and eliminating stray light, among others. Specifically: 1. Limiting Beam Aperture: The aperture determines the amount of light flux entering the syste...Read more -
EFL BFL FFL and FBL
EFL (Effective Focal Length), which refers to the effective focal length, is defined as the distance from the center of the lens to the focal point. In optical design, focal length is categorized into image-side focal length and object-side focal length. Specifically, EFL pertains to the image-si...Read more -
Resolution and sensor size
The relationship between the size of the target surface and the achievable pixel resolution can be analyzed from multiple perspectives. Below, we will delve into four key aspects: the increase in unit pixel area, the enhancement of light capture capability, the improveme...Read more -
Which material is more suitable for use as a Lens shell: plastic or metal?
The appearance design of lenses plays a crucial role in modern optical devices, with plastic and metal being two predominant material choices. The distinctions between these two types are evident across various dimensions, including material properties, durability, weigh...Read more -
Difference between focal length, back focal distance and flange distance
The definitions and distinctions among lens focal length, back focal distance, and flange distance are as follows: Focal Length: The focal length is a critical parameter in photography and optics that refers t...Read more -
Applications of Line scan lenses
Line scan lenses are employed across a wide array of industries, including industrial automation, printing and packaging, and lithium battery manufacturing. These versatile optical devices have become indispensable tools in modern manufacturing processes due to their high-resolution imaging, rapi...Read more -
Waterproof lenses and ordinary lenses
The primary distinctions between waterproof lenses and ordinary lenses are evident in their waterproof performance, applicable environments, and durability. 1. Waterproof Performance: Waterproof lenses exhibit superior water resistance, capable of withstanding specific depths of water pressure. T...Read more -
Focal length and Field of view of optical lenses
Focal length is a critical parameter that quantifies the degree of convergence or divergence of light rays in optical systems. This parameter plays a fundamental role in determining how an image is formed and the quality of that image. When parallel rays pass through a...Read more -
Optical Lens Manufacturing and Finishing
1. Raw Material Preparation: Selecting appropriate raw materials is critical to ensuring the quality of optical components. In contemporary optical manufacturing, optical glass or optical plastic is typically chosen as the primary material. Optica...Read more -
Application of SWIR in industrial inspection
Short-Wave Infrared (SWIR) constitutes a specifically engineered optical lens devised to capture short-wave infrared light that is not directly perceivable by the human eye. This band is customarily designated as light with wavelengths spanning from 0.9 to 1.7 microns. T...Read more -
The utilization of car lens
In the car camera, the lens undertakes the responsibility of focusing the light, projecting the object within the field of view onto the surface of the imaging medium, thereby forming an optical image. Generally, 70% of the optical parameters of the camera are determined...Read more -
The 2024 Security Expo in Beijing
China International Public Security Products Expo (hereinafter referred to as "Security Expo", English "Security China"), approved by the Ministry of Commerce of the People's Republic of China and sponsored as well as hosted by China Security Products Industry Associatio...Read more
