| 摘要 |
It comprises a base 1 on which vertical members 2, 3 stand, with respect to which members there move, on the one hand, a light-tight casing 5 and, on the other hand, the objective 7 of a dark chamber 6 fixed above the casing around a cutout 5b in the latter. Around the cutout 5b is placed a case 14 containing a mirror 15 inclined at 45 DEG which reflects the light rays leaving the object 16 towards a camera 17, providing adjustment of the sharpness of the image. Vertical movement of the casing 5 and/or the objective 7, setting of the diaphragm (aperture) of the objective 7 and/or of the exposure time are carried out by rotating the case 14 in order to send the light rays leaving the object 16 towards an appropriate apparatus. Electronic systems may be provided for synchronising the various movements. <IMAGE>
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