EYEPIECE SYSTEM FOR NIGHT VISION DEVICE WITHOUT USING A RELAY LENS

摘要

PURPOSE: An eyepiece system for night vision device is provided to improve luminance and sharpness of images by being directly connected to a camera without a relay. CONSTITUTION: A first lens group(10) includes a first lens(1) and a second lens(2) and has a positive refractive index. The first lens is formed with a double-sided convex lens. The second lens is formed with a meniscus lens. A second lens group(20) includes a third lens(3) and has a positive refractive index. The third lens is formed with a double-sided convex lens. A third lens group(30) includes a fourth lens(4) and a fifth lens(5) and has a positive refractive index. The fourth lens is formed with a double-sided convex lens. The fifth lens is formed with a planoconcave lens or a meniscus lens.