Binocular vision with Specially configured optics literally converge the user’s , providing a magnified,3-D view that can be focused into narrow cavities.The Welch Allyn LumiView Portable Binocular Microscope is a breakthrough product with its unique converging stereoscopic viewing system. Its clip-on battery pack provides more than enough power for a long day’s worth of examinations. At the same time, a powerful halogen lamp shines cool light directly on the subject, resulting in a bright, 3D image. What’s more, Welch Allyn LumiView can go everywhere you do.