Supplementary objective with continuously variable magnification
First Claim
1. IN A SUPPLEMENTARY OBJECTIVE WITH CONTINUOUSLY VARIABLE MAGNIFICATION CONSTRUCTED IN THE MANNER OF A GALILEAN TELSCOPE, A POSITIVE FRONT MEMBER AND A NEGATIVE REAR MEMBER DEFINING AN OPTICAL AXIS, BOTH MEMBERS BEING STATIONARY RELATIVE TO EACH OTHER AND RELATIVE TO A FOLLOWING MAIN OBJECTIVE, A POSITIVE AND A NEGATIVE MEMBER HAVING REFRACTION POWERS OF THE SAME ABSOLUTE VALUE AND BEING LOCATED ON SAID OPTICAL AXIS AND BETWEEN SAID FRONT AND SAID REAR MEMBER, SAID INNER MEMBERS BEING MOVABLE ALONG SAID OPTICAL AXIS IN OPPOSITE DIRECTIONS, AND ONE OF SAID INNER MEMBERS BEING MOVABLE LINEARLY AND THE OTHER OF SAID INNER MEMBERS BEING MOVABLE NON-LINEARLY AND IN SUCH A MANNER THAT DURING VARIATION OF THE MAGNIFICATION THE IMAGE POSITION REMAINS CONSTANT, AND SUPPLEMENTARY OBJECTIVE COMPLIES SUBSTANTIALLY WITH THE FOLLOWING TABLE AND BEGINNING FROM THE FRONT END OF THE SAID SUPPLEMENTARY OBJECTIVE L1 TO L4 DESIGNATE SAID LENS MEMBERS, R1 TO R8 DESIGNATE THE RADII OF CURVATURE OF THE LENSES, THE + VALUES OF THE RADII INDICATE THE SURFACES OF THE LENSES BEING CONVEX TOWARD THE FRONT OF SAID SUPPLEMENTARY OBJECTIVE, D1 TO D7 DESIGNATE THE AXIAL THICKNESS AND THE AXIAL SEPARATIONS, THE VALUES OF THE RADII AND AXIAL THICKNESS AND SEPARATIONS ARE GIVEN IN TERMS OF MILLIMETERS, ND ARE THE REFRACTIVE INDICES FOR THE (HELIUM) D-LINE, V ARE THE ABBE'"'"''"'"'S DISPERSION NUMBERS:
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1 Claim
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1. IN A SUPPLEMENTARY OBJECTIVE WITH CONTINUOUSLY VARIABLE MAGNIFICATION CONSTRUCTED IN THE MANNER OF A GALILEAN TELSCOPE, A POSITIVE FRONT MEMBER AND A NEGATIVE REAR MEMBER DEFINING AN OPTICAL AXIS, BOTH MEMBERS BEING STATIONARY RELATIVE TO EACH OTHER AND RELATIVE TO A FOLLOWING MAIN OBJECTIVE, A POSITIVE AND A NEGATIVE MEMBER HAVING REFRACTION POWERS OF THE SAME ABSOLUTE VALUE AND BEING LOCATED ON SAID OPTICAL AXIS AND BETWEEN SAID FRONT AND SAID REAR MEMBER, SAID INNER MEMBERS BEING MOVABLE ALONG SAID OPTICAL AXIS IN OPPOSITE DIRECTIONS, AND ONE OF SAID INNER MEMBERS BEING MOVABLE LINEARLY AND THE OTHER OF SAID INNER MEMBERS BEING MOVABLE NON-LINEARLY AND IN SUCH A MANNER THAT DURING VARIATION OF THE MAGNIFICATION THE IMAGE POSITION REMAINS CONSTANT, AND SUPPLEMENTARY OBJECTIVE COMPLIES SUBSTANTIALLY WITH THE FOLLOWING TABLE AND BEGINNING FROM THE FRONT END OF THE SAID SUPPLEMENTARY OBJECTIVE L1 TO L4 DESIGNATE SAID LENS MEMBERS, R1 TO R8 DESIGNATE THE RADII OF CURVATURE OF THE LENSES, THE + VALUES OF THE RADII INDICATE THE SURFACES OF THE LENSES BEING CONVEX TOWARD THE FRONT OF SAID SUPPLEMENTARY OBJECTIVE, D1 TO D7 DESIGNATE THE AXIAL THICKNESS AND THE AXIAL SEPARATIONS, THE VALUES OF THE RADII AND AXIAL THICKNESS AND SEPARATIONS ARE GIVEN IN TERMS OF MILLIMETERS, ND ARE THE REFRACTIVE INDICES FOR THE (HELIUM) D-LINE, V ARE THE ABBE'"'"''"'"'S DISPERSION NUMBERS:
Specification
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Current AssigneeKarl Bystricky, Trude Muszumanski
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Original AssigneeKarl Bystricky, Trude Muszumanski
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InventorsKARL BYSTRICKY, TRUDE MUSZUMANSKI
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Application NumberUS04/344,576Time in Patent Office1,454 DaysField of SearchUS Class Current359/686CPC Class CodesG02B 15/1421 the first group being positive
