What Are The Advantages Of Aspheric Lenses?
Creating a perfectly spherical lens is a relatively easy task. In that, you can make your grinder and grind down your lenses to to make a perfectly spherical lens. On the other hand, if you want to create an aspherical lens, you can't just grind down your lens using a uniform tool. Instead, if you have to grind to a certain pattern by hand, you have to do the work on your own. At least this was the case until science advanced. Today it is possible to create aspherical lenses for use in all sorts of applications.
What Are the Benefits of Aspherical Lenses?
When you use a spherical lens, the shape of the lens will create a distortion in objects viewed through the lenses. This might not matter if you are out hunting and trying to spot animals, a little distortion in the images will still allow you to complete the task. On the other hand, if you are trying to take pictures of objects in space or under a microscope, a little bit or distortion can have serious repercussions. With the right geometry, a spherical lens can correct the distortion, so you can get completely accurate images.
How Do You Create Aspherical Lenses?
Grinding down lens by hand takes too much time. New methods use molds to produce lenses much quicker than you could otherwise. You can't use the same geometry for all applications, so you will need to specify to a lens manufacturer exactly what geometry you need. You will also need to specify a type of material for the lenses. Precision glass-molded lenses can be produced in mass and require the least amount of upkeep, so they are ideal for the production of high-volume equipment. On the other hand, if you need specialized equipment for a given experiment, you should consider using precision polished lenses. You can also get hybrid lenses that are create using molds and then polished or lenses made from plastic. Hybrid lenses will help correct for chromatic aberration and plastic lenses are good for high volume projects.
When you need precise imaging, you need to pay for aspheric lenses. They might cost more to produce, but you get good value for your money. When it comes to science and research, precision can make the difference between success and failure, so getting the right aspheric lens for your needs is a critical component of finding success. For more information, contact R. Mathews Optical Works, Inc.