| 摘要 |
PURPOSE:To improve brightness, performance and the uniformity of the brightness of the entire image and improve productivity by using the juxtaposed plural projection lens systems constituted respectively of 4 pieces of coaxial lenses. CONSTITUTION:The indiviaual projection lens systems are constituted of four pieces of respectively coaxial lenses I-1, I-2, II-1, II-2, and 4 pieces of these lenses are divided to two pieces of the 1st lens system I forming an inverted intermediate image C', and two pieces of the 2nd lens system II transmitting the intermediate image C' to an imaging plane. The 1st lens system I and the 2nd lens system II are symmetrical with respect to the intermediate image and are so constituted as to satisfy the condition equations I and II. |
