Machine Vision Lens, Industrial Camera Lenses
Currently we have 8mm,12mm, 16mm, 25mm, 35mm, 50mm with different image resolution
8MP, 10MP, 12MP, 5MP, 3MP etc, work with different Cmos Sensor 2/3'', 1 inch, 1.1 inch , 1/1.7'' 4/3'' inch etc, C mount, F-Mount etc. these Leneses are widely used for FA Lens, Machine Vision Camera Lens, Industrial Camera, CCTV Zoom Lens etc
How to Choose one suitable Lenses for your project?
Image processing is the process of detecting changes in pixel density data through calculation. As such, stable detection requires projection of a clear image. The lens selection plays an important role in determining the performance of image processing–based inspection.
Three Major Factors in Choosing most suitable Lens
Researching lens qualities and other factors in your application will require some effort. Talking to a distributor is one of the best ways to ensure you choose the right lens.
(1)Cmos Sensor and Application Measurements
Ideally, you’ll know the size of the sensor in your camera, the field of view and the distance from the object being monitored.
This information will reveal to you the focal length you require in your vision system. It will also tell you what size lens you need. Keep in mind the size of the lens needs to be greater than or equal to the size of the sensor.
(2) Resolution Pixel Size in Lens Specifications
Lenses are rated by line parts per millimeter (lp/mm), not megapixels. However, most manufacturers will only broadcast the megapixel value of a lens. This means that one 5 MP lens may not perform the same as another 5 MP lens.
Pixel size information may be difficult to obtain, due to the fact that it’s usually not advertised, but lens distributors have optical experts who can help you find a more accurate lens rating.
(3） Lens Quality
The specific application dictates the quality of the lens needed. Here are some values to consider that will give you an idea of the lens quality you need:
A.Modulation transfer function (MTF): a measurement of the intensity of light before it reaches the optics system compared to the intensity of light after it enters the optics system. Essentially, how well your lens transfers light.
B.F#: the amount of light that can pass through the iris of a vision system, or, in other words, how much light can pass through the lens.
C.Magnification: the number of times the image size is increased or decreased past its original size. You may need a special lens if you require large magnification or demagnification.
There are many important considerations to make when selecting the best lens for your application. Your entire vision system depends upon your lens, so choosing the correct one is important.
