WebWorking near the focal plane of the objective lens. The lens is called an F-theta lens. In the marking system, the laser beam passes through the F theta lens system and will produce off-axis deflection. Relative to an … WebDec 25, 2024 · If the lens is a true f-theta lens, then the scan angle to give the full field is theta = h / f, where h=98.5 mm, f=230 mm, so theta = 0.42 radians or 24.5 degrees. …
F-theta Lens - Hispeed Laser
WebSep 11, 2024 · What is A F-theta Len. Galvanometer scanning systems are usually used in laser industrial processing, medical treatment, scientific research and measurement applications. After collimation or beam expansion, the laser beam is incident on the galvanometer lens in the X and Y directions, and then focused on the working surface … WebF-Theta lenses with a diverse lineup, including options for fiber lasers, fundamental wave such as YAG lasers are available at Geomatec. Introducing our high-performance thin … mary t group homes
F Theta, Telecentric F Theta Lens, F-Theta Objective …
WebF-Theta Lenses. F-Theta Lenses are used in laser optic systems that are designed to focus on a planar image. These provide distortion to make the image height proportional to the focal length and scanning angle theta. These can be filtered by wavelength, lens material, focal length, beam diameter, and more. WebF-Theta Lenses. F-Theta scanning lenses designed for laser marking applications with Nd:YAG laser’s fundamental (1064 nm) or second (532 nm), or third (355 nm) harmonic. We offer F-Theta lenses with diameter 90 mm and 104 mm and with working distances from 115 mm to 700 mm. F-Theta Lens for Nd:YAG Laser fundamental (1064 nm) wavelength. In most areas of optics, and especially in microscopy, the numerical aperture of an optical system such as an objective lens is defined by where n is the index of refraction of the medium in which the lens is working (1.00 for air, 1.33 for pure water, and typically 1.52 for immersion oil; see also list of refractive indices), and θ is the half-angle of the maximum cone of light that … huttig city hall