Telecentric Lenses
In many machine-vision systems, such as those used in semiconductor inspection, precise repeatable measurements must be made consistently. To ensure this occurs, system developers must turn to more expensive optical systems based on telecentric lenswith which to image these parts.
Many of the reasons for choosing telecentric lensesemerge from the limitations of more conventional lens systems. For example, should an object move even slightly within the depth of field of a conventional lens system, there will be an associated magnification change. In the past, magnification changes due to object displacement were calibrated by means of an additional camera or a depth sensor tracking the distance between the lens and the object. The use of a telecentric lens can substantially reduce or even eliminate such magnification changes and therefore remove the need for any additional camera and preprocessing of the image data that may otherwise be required to correct for any magnification errors.
Perspective or parallax errors can also be eliminated by the use of telecentric lenses. In conventional optical systems, closer objects appear relatively larger than those further away because the magnification of an object changes with its distance from the lens. However, telecentric lenses optically correct for this parallax error so that objects remain the same perceived size independent of a specific distance from lens.
Telecentric lens can solve above problems effectively in a specific working distance. Telecentric lens has same magnification which isn't change with DoF after focalization. Telecentric lens can provide superior image quality with low distortion and no parallax, so it can be used in high precise measurement and the detection of the work piece’s defect.
We provide telecentric optical system, telecentric system, telecentric lens depth of field, telecentric lens design, hyp design, etc. For more information, please feel free to contact us!
在线联系供应商
Other supplier products
Corner Cube Retroreflectors | Corner Cube Retroreflectors Corner cube prismis total reflecting prism formed by 3 perpendicular surfaces, where the incident light angle does... | |
BBO Crystal | he BBO Crystal is a high-temperature phase of BaB2O4, is an excellent birefringent crystal an efficient NLO crystal for the second, third and fourt... | |
Chalcogenide Lenses | Chalcogenide glassis containing one or more chalcogens (sulfur, selenium and tellurium, but excluding oxygen). Chalcogenide components are becoming... | |
Aspherical Lenses | Hyperion Optics’ manufacturing equipment expand our aspherical products’ capabilities to LWIR applications, from high precision VIS ima... | |
Cemented Prism Cube | Hyperion Optics are specialist of providing custom cube prisms, meanwhile, we are also capable of precision optical glass prismbonding of custom de... |
Same products
Asphere Lenses | 卖方: Hyperion Optics | The complex surface profile of an asphere can significantly reduce or even eliminate spherical ab... | |
Aspherical Lenses | 卖方: Hyperion Optics | Hyperion Optics’ manufacturing equipment expand our aspherical products’ capabilities... | |
Achromatic Triplet Lenses | 卖方: Hyperion Optics | Anachromatic tripletlens is a compound lens consisting of three single lenses. The triplet design... | |
Achromatic Doublet Lenses | 卖方: Hyperion Optics | At Hyp design, with decades fabrication experiences, we have been providing our customer a vast n... | |
Achromatic Cylindrical Lenses | 卖方: Hyperion Optics | Achromatic cylindrical lenses are ideal for eliminating spherical and chromatic aberration at the... |