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The Motion Technology Company Schaeffler will expand production in the USA with a new automotive production site. The new facility will be located in Dover, Ohio.
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Telecentric lens for white LED or with large field of view
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An telecentric lens commonly found in industrial Image ProcessingMission. In three-dimensional measurements, it sometimes even surpasses the accuracy of non-contact or laser-based measurement methods. The telecentricity offers the highest accuracy and repeatability. Below we present you New Products like the telecentric lens for white LED light from Vision & Control:
20.04.2022 | Vision & Control presents new telecentric lenses. Color-optimized for blue light, they are suitable for use with white LED light, since when working with white LEDs, the light is generated by the combination of blue Light-emitting diode with yellow phosphor layer is produced. With the new TO44 series, the manufacturer is expanding its Blue Vision family with three telecentric measuring lenses with an object field diameter of 44 mm. They have a parallel beam path on the object side and depict objects without perspective distortions. The low-distortion lenses offer high resolution, low lateral chromatic aberrations and minimal telecentric deviations. Thanks to improved mechanics, the aperture can be adjusted and locked very precisely from F6 to F22.
There are the telecentric lenses in the threeLenses TO44/6.2-150-VB, TO44/8.8-110-VB and TO44/11.0-110-VB. The optical measuring devices are for Sensor Designed for diagonals of 6, 9 and 11 mm. The maximum image field diameter is 6,2, 8,8 or 11,0 mm. The working distances are 150 and 110 mm respectively. Designed for robust use in industry, a TO44 telecentric lens is a very good replacement for the T150 lens series.
Due to the two clamping areas 32g7 on the camera side and 56g7 on the object side as well as the two filter threads M52 and M 20,5, a TO44 lens can be easily combined with the rest of the Vision & Control product portfolio, such as with the wide range of polarization filters, blocking filters and color filters as well as ring lights, telecentric lighting and other accessories. The TO44 lenses are available now. The delivery time for the lenses is about two weeks.
17.04.2019/XNUMX/XNUMX | With the “TC Core Plus” series from optoengineering are telecentric lenses with a large field of view for area scan cameras, specially designed for the latest generation of 1/1,8” and 2/3” CMOS sensors. Its opto-mechanical design is suitable for measuring large objects in tight spaces.
The length and working distance of a telecentric lens have a strong effect on the Size of an image processing system out. This is of particular importance when a large field of view telecentric lens is used in conjunction with a telecentric illuminator, as the overall dimensions of the optic are then doubled. For this reason, the working distance of the lenses has been optimized in such a way that a measurement system that is as compact as possible can be created.
26.04.2011/5/XNUMX | With the TCXNUMXM series offers lensation telecentric lenses for tasks that place the highest demands on accuracy. The lenses designed for 2/3" CCD sensors with a resolution of 5 megapixels are available in different versions for large working distances of 110, 130 and 150 mm. They are particularly suitable for inspection and measurement applications where the distance to the camera varies, so that conventional lenses would provide different readings depending on the distance.
Using telecentric lenses can Measurement accuracy significantly improved will. With them, the beam path is parallel to the optical axis on the object side and/or on the image side. Object-side telecentric beam paths are used to capture objects without perspective distortion - the front lens must be at least as large as the object to be imaged.
In addition, it changes magnification This is not the case with axial object displacement, so the image always appears the same size regardless of the object distance, but becomes blurred if the object is outside the ideal object plane. This property is used in measuring lenses to allow a certain distance and position tolerance for the test part. The TC5M series guarantees this freedom from distortion in combination with an extremely high resolution and thus opens up new possibilities for users in the Measurement Technology.
An telecentric lens has a constant field of view without the angle of view typical of other lenses. Because only axially parallel light beams from the measurement object enter the lens, telecentricity avoids perspective distortions or incorrect image scaling or parallax errors. In this way, the imaging scale remains the same over the entire range of depth of field. The magnification also remains the same with these lenses, regardless of the distance to the measurement objects. Telecentric lenses are often used in industrial image processing to measure three-dimensional workpieces.
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Angela Struck is editor-in-chief of the development scout and freelance journalist as well as managing director of Presse Service Büro GbR in Ried.