公开(公告)号：US3697184A

公开(公告)日：1972-10-10

申请号：US3697184D

申请日：1971-04-01

Applicant: XEROX CORP

Inventor： LEHMBECK DONALD R

IPC: G01J3/04 ,  G01J3/12 ,  G01J3/28 ,  G01J3/46

CPC classification number: G01J3/04 ,  G01J3/12 ,  G01J2003/2866

Abstract: A target for evaluating the characteristics of a thermoplastic photosensitive element is herein disclosed. The target includes a partially transparent or partially absorbing film having at least two fixed narrow bandwidth slits therein and a mask of varying optical density placed on top of or underneath the slit containing film. The target is capable of being positioned in contact with the photosensitive element to reside between the element and a source of exposing radiation. When exposed to a calibrated source of light, an image of known high frequency spatial intensity distribution surrounded by a normal sensitometric exposure results. By observing the effects of this known exposure on a developed thermoplastic photoreceptor characteristics of major concern can be determined.

Abstract translation: 本文公开了评价热塑性光敏元件特性的目标。 目标包括其中具有至少两个固定的狭窄带宽狭缝的部分透明或部分吸收的膜，以及设置在狭缝容纳膜的顶部或下面的具有变化的光密度的掩模。 靶能够定位成与感光元件接触以位于元件和曝光辐射源之间。 当暴露于校准光源时，会产生由正常感光度曝光包围的已知高频空间强度分布的图像。 通过观察这种已知曝光对开发的热塑性感光体的影响，可以确定主要关注的特征。

公开(公告)号：US3861804A

公开(公告)日：1975-01-21

申请号：US33613673

申请日：1973-02-26

Applicant: XEROX CORP

Inventor： LEHMBECK DONALD R

IPC: G01J9/02 ,  G01N21/45 ,  G01N21/84 ,  H04N5/82 ,  G01B7/02

CPC classification number: G01N21/45 ,  G01J9/02 ,  G01N21/8422 ,  H04N5/82

Abstract: Phase information recorded in the form of thickness or refractive index variations in a transparent member is detected by directing converging, temporally coherent light onto the transparent member. The intensity of the interfering light reflected from the top and bottom of the transparent member provides a direct readout of thickness or refractive index for the discrete area examined. The intensity variations of the interfering light observed during a scan of the transparent member provide information about the magnitude of the thickness or refractive index changes recorded by the member.

Abstract translation: 通过将会聚的时间相干光引导到透明构件上来检测以透明构件的厚度或折射率变化形式记录的相位信息。 从透明构件的顶部和底部反射的干涉光的强度提供了对所检查的离散区域的厚度或折射率的直接读出。 在透明构件的扫描期间观察到的干涉光的强度变化提供关于由构件记录的厚度或折射率变化的大小的信息。