Product Description
Powell prisms (laser linear generator lenses) are capable of converting a collimated beam into a uniformly distributed straight beam. Unlike a cylindrical lens that produces a Gaussian beam that is highlighted in the middle and attenuated at the edges, a Powell prism redistributes the optical power of an incident collimated Gaussian beam, fanning out into a linear beam of uniform energy. Powell prisms have an aspherical design for the incident surface and a flat surface for the exit surface, both coated with a 400nm-700m transmittance enhancement film, with an average reflectance of <1% on each surface.
Powell prisms are sensitive to the size of the incident spot, GCL series prisms are designed with an incident spot of 1mm, if it is larger than 1mm, there will be bright spots at both ends of the incident beam, and if it is smaller than 1mm, it will be bright in the middle and dark at both ends. For 633nm incident light, 80% of the centreline range of intensity difference is less than 20%, straightness is less than 0.1%. Other incident spot sizes and form factor parameters are available on request.
Powell prisms are used for calibration, shaping, scanning, inspection and machine vision.
General Parameters
Full Fan Angle :30°
Material : BK7
Laser wavelength(nm) : 430~1100nm
Incident beam diameter (mm): 0.8-1, 2-3, 5