公开(公告)号：US3664739A

公开(公告)日：1972-05-23

申请号：US3664739D

申请日：1968-08-09

Applicant: TIMOTHY R PRYOR

Inventor： PRYOR TIMOTHY R

IPC: G01B11/14 ,  G01B11/16 ,  G01B11/30 ,  G02F1/30

CPC classification number: G01B11/14 ,  G01B11/16 ,  G01B11/306

Abstract: THE SEPARATION OF TWO POINTS, EACH LOCATED ON A MEMBER AND BEING SEPARATED BY AN APERATURE, IS MEASURED BY DIRECTING WAVES, SUCH AS LIGHT WAVES, ON THE POINTS TO FORM A DIFFRACTION PATTERN OF THE SINGLE APERATURE TYPE. A CHANGE IN DIMENSION OF THE MEMBER, OR IN THE SPACING BETWEEN TWO ADJACENT MEMBERS, CAUSES THE SEPARATION OF THE EDGES TO CHANGE WHICH, IN TURN, CAUSES A CHANGE IN THE CONFIGURATION OF THE PATTERN. BY COMPARING THE INTENSITY OF A GIVEN PORTION OF THE PATTERN WITH A PORTION OF A PATTERN PRODUCED UNDER KNOWN CONDITIONS, A CHANGE IN THE SEPARATION OF THE POINTS CAN BE DETERMINED FROM WHICH MEASUREMENT OF DIMENSION, STRAIN, ETC., CAN BE DETERMINED.

公开(公告)号：US3458257A

公开(公告)日：1969-07-29

申请号：US3458257D

申请日：1964-10-08

Applicant: TIMOTHY R PRYOR

Inventor： PRYOR TIMOTHY R

IPC: G01B11/16 ,  G02B27/44 ,  C01B11/16 ,  H01J39/12

CPC classification number: G02B27/4255 ,  G01B11/165

公开(公告)号：US3517998A

公开(公告)日：1970-06-30

申请号：US3517998D

申请日：1968-12-18

Applicant: TIMOTHY R PRYOR

Inventor： PRYOR TIMOTHY R

IPC: G01P3/36 ,  G01S17/50

CPC classification number: G02B7/002 ,  G01P3/366 ,  G01S17/50