MULTIFOCAL OBJECTIVE

摘要

PCT No. PCT/SE84/00096 Sec. 371 Date Nov. 29, 1984 Sec. 102(e) Date Nov. 29, 1984 PCT Filed Mar. 19, 1984 PCT Pub. No. WO84/03952 PCT Pub. Date Oct. 11, 1984.The present invention relates to an image-forming objective which is capable of forming sharp images of objects at at least two different distances from the objective, there being arranged at one focal plane of the objective a corrective element divided into at least two fields in which the refractive power differs between them.