Powell lenses are a revolution in the field of optics as they can create a straight laser line. These lenses look like a prism; however, they can produce a very controlled and defined beam by dispersing a collimated beam which is why they are also known as laser line generator lenses. The design of the Powell lens allows it to disperse light in one direction only. The apex radius is small which confines the light beam to one direction only.
Although the function and performance of the Powell lens look very similar to cylindrical lenses, the difference lies in the intensity of the beam generated by the Powell lens. Cylindrical lenses produce a beam that is intense in the center which begins to fade as one moves away from the center. Powell lenses generate a beam with the same intensity. The intense, straight, and confined beams of Powell lenses are available at fan angles of 30°, 45°, 60°, or 75°.
Working on Powell Lens
Powell Lens has a rounded top which creates maximum spherical aberration. At this point, the beam releasing at the line’s end is more concentrated towards the edges or boundary whereas the center is comparatively dim. Towards the end of the line, this beam undergoes another transformation and becomes uniformly illuminated. The resulting light is a fine beam of laser that is used in various industries.
Uses of Powell Lens
The biggest drawback of a chamber lens is that it produces a non-uniform beam. Powell lens has taken care of this limitation with the production of a uniform fine beam. The uniform light of the Powell lens is used in many industries; from medical applications to the production of edibles. Due to their ability to produce a uniform beam, Powell lenses have paved the way for various innovations. These include the rise of 3D scanners and rust removal guns. The ability of Powell lenses to measure the time of flight and distribute power accordingly has made it possible to materialize these into technological innovations.
In this article, we have discussed 5 advantages of using Powell lenses. Let’s take a look at them.
1. Allows beam adjustment through the mounting lens
Powell lenses allow mounting of lens.
The major reason for using the Powell lens is to ensure that beam is straight with uniform light distribution. If at any point you feel that the beam can scatter, you can take care of it by adjusting the fan edge. You can mount it in such a manner that no portion of the scattering light leaves the lens’ face. A small adjustment ensures that the functionality of the Powell lens is not affected in any way and the line remains consistent throughout.
2. Beam Size can be adjusted
The specific projection separation of laser bars determines the thickness of the laser beam. The beam depends on the solitary diode module that exists because of the round bar cross-segment. With the adjustment of the solitary diode, you can obtain a uniform and aligned beam of your preference and requirement.
3. Availability of various fan angles
The angle at which the beam is produced relies on the refractive list of the glass and the rooftop edge. The refraction can be adjusted by using a lens that has desired fan angle width. For example, you will have to use a lens of slimmer measurement if you wish to control or minimize the refractive record. The reason for using a thinner lens is that there is no need to differentiate the beam from the one that is produced. On the contrary, a higher refractive record or a noticeable rooftop requires a thicker lens to extend the fan edge. A prominent fan edge differentiates the line for a given projection separation. The availability of fan angles in a variety of fan angles of 30°, 45°, 60°, or 75° contributes to the performance and functionality of the Powell lens.
4. Uniformity of Beam
Unlike regular lens laser, Powell Lens allows ensures beam uniformity. This uniformity of line is possible only because of the episode laser bar’s attributes. The Powell Lens along with the laser module’s specific shaft attributes ensures consistency and uniformity of the laser beam. Because of this uniform beam, advanced technology such as rust removal guns and 3D scanners has become possible. Powell lenses are used in various other sectors because of the same quality.
5. Allows Boresight and straight beam
Powell lens generates straight beam and boresight. The laser module contributes to the accuracy of the Powell lens, whereas its assembling nature ensures the line straightness and bore sight deviation. Therefore, it is important to assemble and fabricate Powell lens cells because the rooftop should be opposite the origin of light for the initiation of the beam. Only properly assembled Powell laser cells ensure the perfect interface for the laser.
Powell lenses have paved the way for a lot of innovations across many industries. Many laser diode manufacturers use Powell lenses for their distinguished properties of straight and accurate laser beam generation. Ayase Corporation is a known laser diode manufacturer that specializes in manufacturing and supply of high-quality Powell lenses. To know more about products in optics, visit our products/services page.