a lens carrier slidable along said guide rod means, a lens control head having a plurality of angularly spaced lenses thereon, said control head being pivotally mounted on said carrier and movable about its pivot whereby to position a selected one of said lenses in an operative position, a ...
(12) comprises an accelerating and scan expansion lens (70) of the quadrupole type including a pair of coaxial cylindrical electrodes (72, 74) and first and second compensating lenses (66, 78) on opposite ends thereof to provide a bright image of the desired size in sharp focus and great ...
(12) comprises an accelerating and scan expansion lens (70) of the quadrupole type including a pair of coaxial cylindrical electrodes (72, 74) and first and second compensating lenses (66, 78) on opposite ends thereof to provide a bright image of the desired size in sharp focus and great ...
In a photographic enlarger (Fig. 1, not shown) having mechanism for automatic sharp focusing of two objective lenses 7a, 7b of different focal lengths, the lenses are fitted into a common rotatable carrier 6 which is in continuous engagement by means of followers 8a, 8b with two cams 9a, ...
PURPOSE:To obtain a sharp enlarging observation method and device therefor by suppressing surface reflected light on the surface of an examinee body where many light beams of surface reflected light exist such as the skin of body surface, etc., and which causes a trouble in enlarging observation...
The lens (6) is fitted in a flexible bellows (9) to enable it to be positionally adjusted to achieve a sharp image. USE - Silk screen printing.BARNUTZ HARALD
March 2. Enlarging, copying, and reducing.-Relates to copying or enlarging cameras having the two end frames 0, I, Fig. 2, mounted to turn on parallel diametral axes P, P' perpendicular to and intersecting the principal axis F, F<1> of the lens, and comprises a construction of ...
The lens (6) is fitted in a flexible bellows (9) to enable it to be positionally adjusted to achieve a sharp image. USE - Silk screen printing.BARNUTZ, HARALD, SCHWANDORF, DE
PURPOSE:To obtain a sharp enlarging observation method and device therefor by suppressing surface reflected light on the surface of an examinee body where many light beams of surface reflected light exist such as the skin of body surface, etc., and which causes a trouble in enlarging observation...