Overview of Optical Lenses
Optical lenses, also known as camera lenses or photography lenses, abbreviated as lenses, are an important branch of the optoelectronics industry and an indispensable component in machine vision systems. It is generally composed of precision hardware, plastic parts, lenses, apertures, drive motors, sensors, and other optical and electrical components, as well as a lens barrel. Optical lens is an important core component in optical imaging systems, which focuses the subject to be photographed onto film or image sensor chips by utilizing the principle of optical refraction. The resolution, contrast, and various aberrations of imaging are the standards for measuring the quality of optical lenses, which affect the quality of imaging, algorithm implementation, and effectiveness.
Main parameters of optical lenses
The main parameters of optical lenses include focal length, viewing angle, aperture, resolution, etc. The focal length determines the magnification and field of view of the lens. The field of view refers to the range of scenes that the lens can capture. The aperture controls the amount of light entering the lens, while the resolution affects the clarity of the image.
Classification of optical lenses
Optical lenses can be classified according to different standards:
Classified by focal length and viewing angle
Wide angle lens: With a viewing angle of over 90 degrees, it is suitable for capturing close range and wide range scenery, and can increase the spatial depth of the photographic image.
Standard lens: With a viewing angle of around 30 degrees, it has a wide range of applications and is usually used for daily shooting.
Telephoto lens: with a viewing angle of less than 20 degrees, the focal length can reach tens or hundreds of millimeters, suitable for capturing distant scenery.
Zoom lens: The focal length of the lens is continuously variable, and the focal length can be changed from wide-angle to telephoto, providing greater flexibility.
Pinhole lens: used for concealed observation, often installed in places such as ceilings or walls.
Classified by structure
Fixed aperture fixed focus lens: simple structure, cheap price, but the aperture cannot be adjusted.
Automatic aperture fixed focus lens: An automatic aperture adjustment function has been added to the fixed aperture fixed focus lens.
Manual zoom lens: The focal length can be adjusted by manually adjusting the zoom ring of the lens.
Automatic zoom lens: both focal length and aperture can be automatically adjusted, providing higher convenience.
Electric three variable lens: aperture, focal length, and focus can all be adjusted, providing maximum flexibility.
Application fields of optical lenses
The application fields of optical lenses are very wide, including mobile phones, cameras, car lenses, LiDAR, machine vision, AR/VR, etc. With the advancement of technology and the development of social economy, the application of optical lenses in these fields continues to expand and deepen, and the future will present a more intelligent development trend.
In summary, optical lenses are complex and important optical systems, and their design and manufacturing have a crucial impact on imaging quality and application effectiveness. With the continuous advancement of technology, the design and production technology of optical lenses are also constantly developing to meet the growing market demand and technical requirements.
Overview of Optical Lenses
Optical lenses, also known as camera lenses or photography lenses, abbreviated as lenses, are an important branch of the optoelectronics industry and an indispensable component in machine vision systems. It is generally composed of precision hardware, plastic parts, lenses, apertures, drive motors, sensors, and other optical and electrical components, as well as a lens barrel. Optical lens is an important core component in optical imaging systems, which focuses the subject to be photographed onto film or image sensor chips by utilizing the principle of optical refraction. The resolution, contrast, and various aberrations of imaging are the standards for measuring the quality of optical lenses, which affect the quality of imaging, algorithm implementation, and effectiveness.
Main parameters of optical lenses
The main parameters of optical lenses include focal length, viewing angle, aperture, resolution, etc. The focal length determines the magnification and field of view of the lens. The field of view refers to the range of scenes that the lens can capture. The aperture controls the amount of light entering the lens, while the resolution affects the clarity of the image.
Classification of optical lenses
Optical lenses can be classified according to different standards:
Classified by focal length and viewing angle
Wide angle lens: With a viewing angle of over 90 degrees, it is suitable for capturing close range and wide range scenery, and can increase the spatial depth of the photographic image.
Standard lens: With a viewing angle of around 30 degrees, it has a wide range of applications and is usually used for daily shooting.
Telephoto lens: with a viewing angle of less than 20 degrees, the focal length can reach tens or hundreds of millimeters, suitable for capturing distant scenery.
Zoom lens: The focal length of the lens is continuously variable, and the focal length can be changed from wide-angle to telephoto, providing greater flexibility.
Pinhole lens: used for concealed observation, often installed in places such as ceilings or walls.
Classified by structure
Fixed aperture fixed focus lens: simple structure, cheap price, but the aperture cannot be adjusted.
Automatic aperture fixed focus lens: An automatic aperture adjustment function has been added to the fixed aperture fixed focus lens.
Manual zoom lens: The focal length can be adjusted by manually adjusting the zoom ring of the lens.
Automatic zoom lens: both focal length and aperture can be automatically adjusted, providing higher convenience.
Electric three variable lens: aperture, focal length, and focus can all be adjusted, providing maximum flexibility.
Application fields of optical lenses
The application fields of optical lenses are very wide, including mobile phones, cameras, car lenses, LiDAR, machine vision, AR/VR, etc. With the advancement of technology and the development of social economy, the application of optical lenses in these fields continues to expand and deepen, and the future will present a more intelligent development trend.
In summary, optical lenses are complex and important optical systems, and their design and manufacturing have a crucial impact on imaging quality and application effectiveness. With the continuous advancement of technology, the design and production technology of optical lenses are also constantly developing to meet the growing market demand and technical requirements.
