One of the most significant components in a machine vision system is the industrial lens. Industrial lenses must also match the standards in order for the entire machine vision system to perform optimally. Machine vision systems are very relevant in the field of precision detection. Ordinary industrial lenses, on the other hand, will not be able to match the detecting criteria. Telecentric lenses emerge as the times demand to compensate for the lack of application of conventional lenses and to fulfil the necessities of precision detection.
Use Of Telecentric Lenses
As a result, telecentric lenses are mostly useful for high-precision product size measurement and defect detection. Their technical advantages in high-precision detection applications are progressively becoming apparent. Telecentric optics outperform conventional optics in many ways, especially when it comes to industrial inspections. Many industries and firms have a direct connection with a local optics manufacturing company in their area. Despite this, many individuals are unfamiliar with telecentric optics and their applications.
Telecentric optics are lenses that deliver the same magnification no matter how far away or where in the field of view the object is. Because the image’s spatial depth seems flat, objects at two different working distances will appear to have the same size.
Categories Of Telecentric Lens
There are a plethora of telecentric lens manufacturers in India that are providing various lenses but now questions arise how to identify telecentric lenses. For this a proper knowledge is required that we are providing you in this blog . Object telecentric, image telecentric, and bi-telecentric lenses are three major types of telecentric lenses. The distinction between these three types is whether the primary ray is parallel to the optical axis on the object side, picture side, or both. The most commonly used telecentric lenses in applications are object telecentric lenses and bi-telecentric lenses.
To choose the correct telecentric lens, we must first comprehend the circumstances in which a telecentric lens can be used.
Circumstances Under Which Telecentric Lens Must Be Used
When recognising three-dimensional objects or when picture size and shape accuracy are critical, the telecentric lens comes in handy. It’s particularly very suitable for precision measurements. Telecentric lens is ideal for sizing inspections of things with varying sizes or stepped heights. It can help you prevent mistakes. It has become a new driving force in the high-precision detection industry’s development.
Also, inspectors must make exact measurements using microscope imaging in various applications, such as the aerospace and automobile industries. Microscopes using traditional optics are unable to provide the level of precision required. When using a standard lens to measure a huge, three-dimensional object, the measurement results from the top and bottom of the item may disagree. It can be difficult to produce reliable, repeatable measurements because of this perspective problem, also known as parallax. The size of items can be perceived differently.
Telecentric optics, on the other hand, aid in ensuring great accuracy. Telecentric optics feature a greater depth of field and less distortion than conventional optics, in addition to eliminating parallax errors.
They are very suitable even when the measurement object’s position is unknown. Because it may be at an angle to the lens. When the measured object leaps up and down during the detection process, such as when the working distance changes due to production line vibration. Not just that, they are very critical when the thing has an aperture or is a three-dimensional object.
Most machine vision integrators just collect a huge number of low-cost, low-resolution lenses, which can only produce blurry images. High-resolution images can be produced using a telecentric lens, even with a tiny pixel image sensor.
Sometimes all you want is for your camera to see everything in its field of view from the same perspective. A conventional lens would only be able to see clearly till a specific point. A telecentric lens, on the other hand, makes the job very simple.
Businesses seek to achieve a competitive advantage in terms of speed and scale. So the necessity for efficient, precise inspection methods will only grow. Telecentric optics can help you accomplish more in less time and provide your company a competitive advantage.
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