公开(公告)号：CA1068508A

公开(公告)日：1979-12-24

申请号：CA267617

申请日：1976-12-10

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G01J3/44 ,  G01N21/64 ,  G01N21/22 ,  G01N21/52

Abstract: A fluorescence spectrophotometer in which the optical system for the excitation monochromator includes an arrangement for forming an image of the exit slit of the monochromator adjacent a first surface of the sample being evaluated and for forming an aperture image adjacent a second surface of the sample. Fluorescence from the sample is directed to an emission monochromator which likewise has an arrangement for forming an image of the emission monochromator's entrance slit adjacent a third surface of the sample and for forming an aperture image adjacent a fourth surface. The optical components are arranged such that the images of the slits lie in a single plane defined by the axial rays of the excitation and fluorescence beams, and in several advantageous arrangements the slit images are oriented at ninety degrees from the slits themselves. In some cases the optical system includes aspherical mirrors arranged to give different magnifications of the images in the horizontal and vertical planes. The intensity of the output signal may be further increased by using wedge shaped optical elements adjacent the sample and by locating mirrors behind the sample holder to direct the light back through the sample for a second pass.

公开(公告)号：DE2338716A1

公开(公告)日：1974-03-14

申请号：DE2338716

申请日：1973-07-31

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G01J3/00 ,  G01J3/08 ,  G01J3/28 ,  G01J3/44 ,  G01J3/12

公开(公告)号：DE2359688A1

公开(公告)日：1974-06-27

申请号：DE2359688

申请日：1973-11-30

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G01J3/443 ,  G01J3/08 ,  G01J3/28 ,  G01J3/44 ,  G01N21/64 ,  G01N21/52

公开(公告)号：US2779230A

公开(公告)日：1957-01-29

申请号：US23777351

申请日：1951-07-20

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G01N21/65

CPC classification number: G01N21/65 ,  G01N2021/651

公开(公告)号：US2749793A

公开(公告)日：1956-06-12

申请号：US30699952

申请日：1952-08-29

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G02B27/14

CPC classification number: G02B27/126 ,  G02B27/143

公开(公告)号：US3689225A

公开(公告)日：1972-09-05

申请号：US3689225D

申请日：1971-06-14

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G01N21/72 ,  G01J3/48 ,  G01N21/58 ,  G01N31/12

CPC classification number: G01N21/72

Abstract: ABOUT TWELVE PERCENT OF THE INSIDE DIAMETER OF THE CHIMNEY. TO CLEAN THE PORTION OF THE INLET CONDUIT WHICH EXTENDS INTO THE ATOMIZING HOUSING, A WIRE AND TUBE ASSEMBLY IS MOVABLY POSITIONED WITH RESPECT TO THE HOUSING, SUCH THAT THE WIRE MAY BE INSERTED WITHIN THE CONDUIT PORTION WHILE THE TUBE SURROUNDS THE CONDUIT TO PROVIDE SUPPORT. IN SOME EMBODIMENTS THIS CLEANING IS ACCOMPLISHED AUTOMATICALLY IN REPSONSE TO THE CHANGING OF THE SAMPLE.

AN ANALYTICAL INSTRUMENT INCLUDING AN ATOMIZER-BURNER AND A DETECTION SYSTEM FOR THE QUALITATIVE AND QUANTITATIVE EMISSION OR ABSORPTION ANALYSIS OF A SAMPLE. THE SAMPLE IS INTRODUCED THROUGH AN INLET CONDUIT INTO A HOUSING AND IS ATOMIZED AND MIXED WITH AN APPROPRIATE FUEL GAS. THE MIXTURE IS LED THROUGH AN ANGULARLY DISPOSED BURNER BARREL AND A FLUID DISCHARGE OPENING TO A GRID FOR HOLDING THE FLAME. A CHIMNEY IS SUPPORTED IN SPACED RELATIONSHIP WITH THE DISCHARGE OPENING SUCH THAT THE SPACING BETWEEN THE CHIMNEY AND THE WALL WHICH FORMS THE OPENING PREFERABLY IS NOT LESS THAN ABOUT SIX PERCENT AND NOT GREATER THAN

公开(公告)号：US3277773A

公开(公告)日：1966-10-11

申请号：US25142263

申请日：1963-01-14

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G01N21/47

CPC classification number: G01N21/474

公开(公告)号：US3069967A

公开(公告)日：1962-12-25

申请号：US85797859

申请日：1959-12-07

Applicant: WHITE JOHN U ,  CARY HENRY H

Inventor： WHITE JOHN U ,  CARY HENRY H

IPC: G01J3/18

CPC classification number: G01J3/18

公开(公告)号：US2729143A

公开(公告)日：1956-01-03

申请号：US16779250

申请日：1950-06-13

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G01J3/12 ,  G02B5/26 ,  G02B5/28

CPC classification number: G02B5/26 ,  G01J3/12 ,  G02B5/281

公开(公告)号：US3888590A

公开(公告)日：1975-06-10

申请号：US45917074

申请日：1974-04-10

Applicant: WHITE JOHN U

Inventor： WHITE JOHN U

IPC: G01J3/18

CPC classification number: G01J3/18

Abstract: A monochromator having curved entrance and exit slits and a pair of curved diagonal mirrors respectively positioned a short distance in front of and in back of an intermediate dispersed image. The dispersed light is successively reflected by the two curved mirrors to reverse the sense of the dispersion without reversing the curvature of the image. In several advantageous embodiments the diagonal mirrors are interposed between two grating monochromators which are oriented in different planes and are arranged in additive relationship with each other. The grating magnification or reduction of the first monochromator is off-set by the grating magnification or reduction of the second monochromator, and the final slit image is substantially free from aberrations at all grating angles and at all points even along comparatively long slits.

Abstract translation: 具有弯曲入口和出口狭缝的单色仪和分别位于中间分散图像的前面和后面的短距离的一对弯曲对角镜。 分散的光被两个曲面镜连续反射，以反转色散的感觉，而不会反转图像的曲率。 在几个有利的实施例中，对角镜被插入在两个光栅单色器之间，两个光栅单色器被定向在不同的平面中并且彼此以相加关系排列。 第一单色仪的光栅放大率或减小度由光栅放大率或第二单色仪的减小而偏移，并且最终的狭缝图像在所有光栅角度以及甚至在较长的狭缝处基本上都没有像差。