公开(公告)号：US4033769A

公开(公告)日：1977-07-05

申请号：US519329

申请日：1974-10-30

Applicant: David J. Williams ,  Marcel A. Lardon ,  Martin A. Abkowitz ,  Gustav Pfister

Inventor： David J. Williams ,  Marcel A. Lardon ,  Martin A. Abkowitz ,  Gustav Pfister

IPC: G03G5/024 ,  G03G5/05 ,  G03G5/06 ,  G03G5/00

CPC classification number: G03G5/0618 ,  G03G5/024 ,  G03G5/0507 ,  G03G5/0514 ,  G03G5/0609 ,  Y10S430/10

Abstract: Photoconductive compositions comprising an organic photoconductive material, an activator capable of forming a charge transfer complex with the photoconductive material, and a protonic acid. Imaging members provided with an imaging layer prepared from the above composition are highly light sensitive, requiring only brief exposure times, and exhibit a photoinduced state of elevated conductivity which persists long after exposure to light is terminated. These compositions can be returned to their relatively insulative state by merely subjecting the imaging layer to heat in the dark, thereby erasing this photoinduced image pattern of elevated conductivity.

Abstract translation: 包含有机光电导材料，能与光电导材料形成电荷转移络合物的活化剂和质子酸的光导组合物。 设置有由上述组合物制备的成像层的成像构件是高度光敏的，仅需要短时间的曝光时间，并且在曝光后持续长时间持续的导电性的光诱导状态终止。 通过仅在黑暗中对成像层进行加热，可以使这些组合物恢复到相对绝缘状态，从而擦除导电率升高的光致像图像。

公开(公告)号：US3994592A

公开(公告)日：1976-11-30

申请号：US630520

申请日：1975-11-10

Applicant: Marcel A. Lardon ,  Thaddaus Kraus

Inventor： Marcel A. Lardon ,  Thaddaus Kraus

IPC: G01J3/433 ,  G01J3/46

CPC classification number: G01J3/433

Abstract: The concentration ratio of two components of a mixture of substances, having absorption bands which are adjacent each other in a manner such that the radiation absorption of the mixture of substances has a minimum between these absorption bands, is determined by measuring, in three adjacent, narrow spectral regions, of the radiation transmitted by the mixture of substances, a variable which is proportional to the ratio .DELTA..sup.1 I / .DELTA..sup.2 I wherein the numerator .DELTA..sup.1 I = (I.sub.3 - I.sub.1) is the difference between the intensities of radiation of the two outer spectral regions, and the denominator .DELTA..sup.2 I = (I.sub.3 - I.sub.2) -(I.sub.2 - I.sub.1) is the value by which the respective differences between the intensities of radiation of each outer spectral region and the middle spectral region differ from each other. The position, in the spectrum, of the three adjacent regions is adjusted so that they are located between the absorption maxima of the two components and where the numerator .DELTA..sup.1 I becomes zero at a definite concentration ratio which is preferably the ratio at which the highest accuracy of measurement is desired. Alternatively, the variable is proportional to the ratio I'/I", which is the ratio of the first derivative I' to the second derivative I" of the distribution of spectral intensity.

Abstract translation: 具有彼此相邻的吸收带的物质混合物的两种成分的浓度比通过在三个相邻的条件下测量物质混合物的辐射吸收在这些吸收带之间具有最小值的方式来确定， 由物质混合物传播的辐射的窄光谱区域，与DELTA 1I / DELTA 2I比例成比例的变量，其中分子DELTA 1I =（I3-I1）是两个外部辐射强度之间的差异 光谱区域和分母DELTA 2I =（I3-I2） - （I2-I1）是每个外部光谱区域和中间光谱区域的辐射强度之间的相应差别彼此不同的值。 调整三个相邻区域的光谱中的位置，使得它们位于两个分量的吸收最大值之间，其中分子DELTA 1I以确定的浓度比变为零，其优选地为最高精度 需要测量。 或者，该变量与作为光谱强度分布的第一导数I'与第二导数I“的比率I'/ I”成比例。

公开(公告)号：US4201479A

公开(公告)日：1980-05-06

申请号：US909808

申请日：1978-05-26

Applicant: Marcel A. Lardon

Inventor： Marcel A. Lardon

IPC: G01N21/55 ,  G01N21/48

CPC classification number: G01N21/55

Abstract: The present invention relates to a device for measuring the reflection of a plane, specularly reflecting surface, in which a measuring beam of radiation is directed onto the surface to be measured through an optical converging lens and the radiation reflected from the surface is directed through the same lens to a radiation receiver. In such a system, preferably, the optical connections between the source of radiation and the converging lens and between the lens and the radiation receiver are established by means of a fiber-optical photoconductor or a lens and mirror systems. Such a device may be employed, for example, for measuring the reflection of thin layers deposited in a vacuum evaporator.

Abstract translation: 本发明涉及一种用于测量反射表面的反射面的装置，其中测量光束通过光学会聚透镜被引导到待测量的表面上，并且从表面反射的辐射被引导通过 相同的镜头到辐射接收器。 在这种系统中，优选地，通过光纤光电导体或透镜和镜系统来建立辐射源和会聚透镜之间以及透镜和辐射接收器之间的光学连接。 这种装置可以用于例如测量沉积在真空蒸发器中的薄层的反射。