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An optical profilometer is a non-contact method for providing much of the same information as a stylus based profilometer. There are many different techniques which are currently being employed, such as laser triangulation ( triangulation sensor ), confocal microscopy (used for profiling very small objects), coherence scanning interferometry ...
Figure 2: Optical setup of a Twyman-Green interferometer with a CCD image sensor. The interference occurs for white light when the path lengths of the measurement beam and the reference beam are nearly matched. By scanning (changing) the measurement beam path length relative to the reference beam, a correlogram is generated at each pixel. The ...
Veeco Instruments Inc. is a global capital equipment supplier, headquartered in the U.S., that designs and builds processing systems used in semiconductor and compound semiconductor manufacturing, data storage and scientific markets for applications such as advanced packaging, photonics, power electronics and display technologies.
Figure 3. White light interferometric microscope. White-light interferometry scanning (WLS) systems capture intensity data at a series of positions along the vertical axis, determining where the surface is located by using the shape of the white-light interferogram, the localized phase of the interferogram, or a combination of both shape and phase.
The disadvantage of a profilometer is that it is not accurate when the size of the features of the surface are close to the same size as the stylus. Another disadvantage is that profilometers have difficulty detecting flaws of the same general size as the roughness of the surface. [1] There are also limitations for non-contact instruments.
This category is for software that is used for analysis of optical systems. Pages in category "Optical software" The following 10 pages are in this category, out of ...
In summary, Ansys Zemax OpticStudio is a comprehensive optical design software used for the design and analysis of a wide range of optical systems. Ansys Zemax OpticStudio is widely used in industries such as aerospace, defense, consumer electronics, medical devices, and more, where precise optical performance is critical. The software has ...
An optical comparator (often called just a comparator in context) or profile projector is a device that applies the principles of optics to the inspection of manufactured parts. In a comparator, the magnified silhouette of a part is projected upon the screen, and the dimensions and geometry of the part are measured against prescribed limits .