| 摘要 |
The invention relates to an endoscope lens which shows only a low level of distortion even at large angles of sight and whose elements can be produced and assembled with little effort, consisting of a first lens group having negative total refractive power, of an aperture diaphragm, and of a second lens group having a positive total refractive power, whereby all lens surfaces are spherical and all lenses are made of homogeneous materials. The first lens group contains at least one positive lens which is primarily arranged in the beam direction, and at least one negative lens, whereby the negative lenses in the first lens group are biconcave or plano-concave lenses. The invention also relates to an endoscope equipped with a lens of this type.
|
