US3098408A — Double folded-zeta-configuration monochromator

Claim 1

Independent Claim 258 words

A MONOCHROMATOR INCLUDING: COMBINED SUPPORTING AND HOUSING STRUCTURE PROVIDED WITH A SEPARATING WALL PORTION AND TWO TERMINAL-SLIT WALL PORTIONS, SAID SEPARATING WALL PORTION BEING PROVIDED WITH A LIGHT-TRANSMITTING APERTURE; TWO MONOCHROMATOR SECTIONS ARRANGED ON SAID COMBINED SUPPORTING AND HOUSING MEANS, SAID TWO MONOCHROMATOR SECTIONS BEING CONTIGUOUS AT SAID SEPARATING WALL PORTION, EACH SECTION HAVING A TERMINAL SLIT IN A CORRESPONDING ONE OF SAID TERMINAL-SLIT WALL PORTIONS AND CONTAINING A DISPERING ELEMENT AND A PAIR OF COLLIMATING MIRRORS ARRANGED IN A FOLDED-Z CONFIGURATION, WHEREBY RADIATION PASSING THROUGH ONE TERMINAL SLIT IS TRANSMITTED BY SAID MIRRORS AND DISPERSING ELEMENTS THROUGH THE TWO MONOCHROMATOR SECTIONS IN SUCCESSSION AND EMERGES THROUGH THE OTHER TERMINAL SLIT, THE PATH OF TRANSMISSION IN EACH MONOCHROMATOR SECTION BEING OF FOLDED-Z CONFIGURATION, RADIATION BEING DEFLECTED ALONG EACH SUCH PATH ONLY BY THE DISPERSING ELEMENT AND THE COLLIMATING MIRRORS OF THE RESPECTIVE SECTIONS, THE LEGS OF THE RESPECTIVE FOLDED-Z PATHS BEING STRAIGHT AND BEING FREE FROM LIGHT-DEFLECTING REFLECTION SURFACES, THE LEGS OF THE RESPECTIVE FOLDED-Z CONFIGURATIONS THAT ARE OPITICALLY REMOTE FROM THE CORRESPONDING TERMINAL SLITS BEING COLLINEAR AND EXTENDING THROUGH SAID APERTURE, SAID TERMINAL SLITS BEING DEFINED AT SPACED PORTIONS OF SAID SEPARATING WALL MEANS; AND MEANS INCLUDING A NARROW APERTURE LOCATED AT THE JUNCTION OF SAID COLLINEAR LEGS AND LARGER THAN THE MONOCHROMATIC IMAGE OF EITHER TERMINAL SLIT AT SAID JUNCTION FOR REDUCING THE AMOUNT OF STRAY RADIATION TRANSMITTED THROUGH ONE MONOCHROMATOR SECTION TO THE OTHER, SAID NARROW APERTURE CONSTITUTING SUBSTANTIALLY THE SOLE REGION FOR TRANSMISSION OF RADIATION FROM EITHER OF SAID MONOCHROMATOR SECTIONS TO THE OTHER.

Claim 2

Dependent Claim 258 words

A MONOCHROMATOR INCLUDING: COMBINED SUPPORTING AND HOUSING STRUCTURE PROVIDED WITH A SEPARATING WALL PORTION AND TWO TERMINAL-SLIT WALL PORTIONS, SAID SEPARATING WALL PORTION BEING PROVIDED WITH A LIGHT-TRANSMITTING APERTURE; TWO MONOCHROMATOR SECTIONS ARRANGED ON SAID COMBINED SUPPORTING AND HOUSING MEANS, SAID TWO MONOCHROMATOR SECTIONS BEING CONTIGUOUS AT SAID SEPARATING WALL PORTION, EACH SECTION HAVING A TERMINAL SLIT IN A CORRESPONDING ONE OF SAID TERMINAL-SLIT WALL PORTIONS AND CONTAINING A DISPERING ELEMENT AND A PAIR OF COLLIMATING MIRRORS ARRANGED IN A FOLDED-Z CONFIGURATION, WHEREBY RADIATION PASSING THROUGH ONE TERMINAL SLIT IS TRANSMITTED BY SAID MIRRORS AND DISPERSING ELEMENTS THROUGH THE TWO MONOCHROMATOR SECTIONS IN SUCCESSSION AND EMERGES THROUGH THE OTHER TERMINAL SLIT, THE PATH OF TRANSMISSION IN EACH MONOCHROMATOR SECTION BEING OF FOLDED-Z CONFIGURATION, RADIATION BEING DEFLECTED ALONG EACH SUCH PATH ONLY BY THE DISPERSING ELEMENT AND THE COLLIMATING MIRRORS OF THE RESPECTIVE SECTIONS, THE LEGS OF THE RESPECTIVE FOLDED-Z PATHS BEING STRAIGHT AND BEING FREE FROM LIGHT-DEFLECTING REFLECTION SURFACES, THE LEGS OF THE RESPECTIVE FOLDED-Z CONFIGURATIONS THAT ARE OPITICALLY REMOTE FROM THE CORRESPONDING TERMINAL SLITS BEING COLLINEAR AND EXTENDING THROUGH SAID APERTURE, SAID TERMINAL SLITS BEING DEFINED AT SPACED PORTIONS OF SAID SEPARATING WALL MEANS; AND MEANS INCLUDING A NARROW APERTURE LOCATED AT THE JUNCTION OF SAID COLLINEAR LEGS AND LARGER THAN THE MONOCHROMATIC IMAGE OF EITHER TERMINAL SLIT AT SAID JUNCTION FOR REDUCING THE AMOUNT OF STRAY RADIATION TRANSMITTED THROUGH ONE MONOCHROMATOR SECTION TO THE OTHER, SAID NARROW APERTURE CONSTITUTING SUBSTANTIALLY THE SOLE REGION FOR TRANSMISSION OF RADIATION FROM EITHER OF SAID MONOCHROMATOR SECTIONS TO THE OTHER.

Claim 3

Dependent Claim 160 words

IN A MONOCHROMATOR HAVING A FIRST MONOCHROMATOR SECTION AND A SECOND MONOCHROMATOR SECTION ARRANGED IN CASCADE BETWEEN TWO TERMINAL SLITS, SAID FIRST CONOCHROMATOR SECTION COMPRISING A DISPERSING PRISM AND SAID SECOND MONOCHROMATOR SECTION COMPRISING A DISPERSING DIFFRACTION GRATING: MEANS FOR ROTATING SAID DIFFRACTION GRATING TO VARY THE SELECTED WAVELENGTH OF RADIATION TRANSMITTABLE THROUGH THE DIFFRACTION-GRATING MONOCHROMATOR SECTION; A TRANSFORMER INTERCONNECTING SAID DIFFRACTION GRATING AND SAID PRISM, SAID TRANSFORMER INCLUDING A PAIR OF ROTATABLE CAM ELEMENTS, ONE OF WHICH ROTATES WITH THE DIFFRACTION GRATING, SAID CAM ELEMENTS HAVING A CAM LIFT ACTION THAT VARIES CONTINUOUSLY THROUGHOUT THE SPECTRUM INCLUDING A LOW-LIFT CAM ACTION IN A LONG-WAVELENGH REGION AND A HIGH-LIFT CAM ACTION IN A SHORT-WAVELENGTH REGION; AND A MULTIPLYING MECHANISM INTERCONNECTING THE OTHER CAM ELEMENT AND SAID PRISM, SAID MULTIPLYING MECHANISM HAVING A MULTIPLYING ACTION THAT VARIES CONTINUOUSLY THROUGHOUT THE SPECTRUM, THE EFFECTIVE MULTIPLICATION FACTOR BEING LESS THAN 1 IN SAID LONG-WAVELENGTH REGION AND MORE THAN 1 IN SAID SHORT-WAVELENGTH REGION.

Claim 4

Dependent Claim 160 words

IN A MONOCHROMATOR HAVING A FIRST MONOCHROMATOR SECTION AND A SECOND MONOCHROMATOR SECTION ARRANGED IN CASCADE BETWEEN TWO TERMINAL SLITS, SAID FIRST CONOCHROMATOR SECTION COMPRISING A DISPERSING PRISM AND SAID SECOND MONOCHROMATOR SECTION COMPRISING A DISPERSING DIFFRACTION GRATING: MEANS FOR ROTATING SAID DIFFRACTION GRATING TO VARY THE SELECTED WAVELENGTH OF RADIATION TRANSMITTABLE THROUGH THE DIFFRACTION-GRATING MONOCHROMATOR SECTION; A TRANSFORMER INTERCONNECTING SAID DIFFRACTION GRATING AND SAID PRISM, SAID TRANSFORMER INCLUDING A PAIR OF ROTATABLE CAM ELEMENTS, ONE OF WHICH ROTATES WITH THE DIFFRACTION GRATING, SAID CAM ELEMENTS HAVING A CAM LIFT ACTION THAT VARIES CONTINUOUSLY THROUGHOUT THE SPECTRUM INCLUDING A LOW-LIFT CAM ACTION IN A LONG-WAVELENGH REGION AND A HIGH-LIFT CAM ACTION IN A SHORT-WAVELENGTH REGION; AND A MULTIPLYING MECHANISM INTERCONNECTING THE OTHER CAM ELEMENT AND SAID PRISM, SAID MULTIPLYING MECHANISM HAVING A MULTIPLYING ACTION THAT VARIES CONTINUOUSLY THROUGHOUT THE SPECTRUM, THE EFFECTIVE MULTIPLICATION FACTOR BEING LESS THAN 1 IN SAID LONG-WAVELENGTH REGION AND MORE THAN 1 IN SAID SHORT-WAVELENGTH REGION.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1966-07-22	1967-01-21	1967-07-23	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1970-07-22	1971-01-21	1971-07-23	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1974-07-22	1975-01-21	1975-07-23	$7700.00	Window Closed / Lapsed

Double folded-zeta-configuration monochromator

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