Liquid Lens
Measuring Inner Wall Lens
Measuring Outer Wall Lens
Multi-angle Lens
Oblique Lens
High Performance Internal Coaxial Telecentric Lens
Ring Light
Bar Light
Coaxial Light
Back Light
Dome Light
Telecentric Light
Spot Light
Parallel Focus Light
High Bright Line Light
Plane Shadowless Light
Square Shadowless Light
Needle Inspection Light
Arch-shaped Light
Structural Light
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Q&A
Inside the lens, there is a polygonal or circular aperture grating device with a variable area, and this device is called the aperture. The function of the aperture is to control the amount of light passing through the lens, and its size is usually described by the aperture coefficient. The aperture coefficient refers to the ratio of the focal length of the lens to the effective aperture diameter D of the entire lens, and is usually represented by F/#.
Its calculation formulaF/#= /D 。
F/#The smaller the value, the larger the aperture. For the same lens, the larger the aperture, the more light passes through.
The larger the aperture, the brighter the picture.
