| 摘要 |
1,183,352. Microscopes. CESKOSLOVENSKA AKADEMIE VED. Dec.5, 1967 [Dec.5, 1966(2)], No.55206/67. Heading G2J. A microscope has a Nipkow disc 1, Fig.4, which is rotated in the path of the illuminating beam so that a spot of light is focused by the objective 4' on to the specimen plane 6 and the light therefrom is focused by objective 4" into the phase of the Nipkow disc which is in the plane of eyepiece 13, the arrangement being such that light diffracted by the system is largely rejected as the Nipkow disc in the plane of the eyepiece has such small holes that it practically only accepts the rays corresponding to the geometrical image of the illuminated spot. As shown, corresponding holes of the two Nipkow spirals are radially spaced by 180 degrees and the illuminating and image forming beams are passed through systems 2, 5, which invert in planes which are 90 degrees to one another i.e. half the corresponding angle in the Nipkow disc. There may be a series of spirals, e.g. 80, in the disc so that there is simultaneous scanning by a number of light spots each of which may be of the size of the corresponding Airy disc, the Nipkow disc being rotated by a motor 17. The objectives 4', 4", are adjustable by screws 29, 30, specimen mounting 33 by screw 32 and inverting mirror systems 2, 5, by an arrangement of screws, Fig.5 (not shown). In a modification, Fig. 2 (not shown) the illuminating beam is reflected by a partial reflector (3) and focused by the objective (4) on to the specimen plane (6), the image forming rays passing through the same objective (4) and then through the partial reflector (3) to the image plane. |
