公开(公告)号：EP0296259A1

公开(公告)日：1988-12-28

申请号：EP87108887.8

申请日：1987-06-22

Applicant: Pacific Scientific Company

Inventor： Keane, Thomas J.

IPC: G01N21/64

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/2803 ,  G01J3/4406 ,  G01J2003/2866 ,  G01N21/274 ,  G01N21/645 ,  G01N2021/1734 ,  G01N2021/4766 ,  G01N2021/6484 ,  G01N2201/12723 ,  G01N2201/1285

Abstract: In an optical instrument, a fiber optic probe is provided to irradiate a sample with visible NIR and ultraviolet light. Glass fibers carry the visible and NIR light to the probe from a visible and NIR light source and quartz fibers carry ultraviolet light to the probe from an ultraviolet source. Glass fibers carry visible and NIR light emanating from the sample to a spectrometer having a fixed grating and an array of photodetectors to receive the spectrum dispersed by the grating within the spectrometer housing. Amplifiers are also contained in the spectrometer housing severally connected to the photodetectors to amplify the output signals of the photo­detectors. The probe is provided with a standard white sample pivotal into position to receive the light from the visible light source. A computer is programmed to provide automatic calibration whenever the temperature within the housing changes more than a predetermined small amount. The automatic calibration is carried out by pivoting the white standard into position and computing calibration values from the resulting photodetector outputs. Automatic calibration is also provided when the ratio of output signals from selected ones of the photodetectors changes by more than a predetermined small percentage.

Abstract translation: 在光学仪器中，提供光纤探针以照射具有可见NIR和紫外光的样品。 玻璃纤维从可见光和近红外光源中携带可见光和近红外光，并将石英纤维从紫外光源向探针携带紫外光。 玻璃纤维携带从样品发射到具有固定光栅和光电检测器阵列的光谱仪的可见光和近红外光，以接收由光谱仪外壳内的光栅分散的光谱。 放大器也包含在与光电检测器分开连接的光谱仪外壳中，以放大光电检测器的输出信号。 该探针设置有一个标准的白色样品，可以枢转到位置，以接收来自可见光源的光。 每当外壳内的温度变化超过预定的少量时，计算机被编程为提供自动校准。 通过将白色标准转换到位置并从所得到的光电检测器输出计算校准值来进行自动校准。 当选定的光电检测器的输出信号的比率变化超过预定的小百分比时，也提供自动校准。

公开(公告)号：EP0335192A2

公开(公告)日：1989-10-04

申请号：EP89104696.3

申请日：1989-03-16

Applicant: PACIFIC SCIENTIFIC COMPANY

Inventor： Keane, Thomas J.

IPC: G01J3/50 ,  G01N21/57 ,  G01N21/47 ,  G01N21/25

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/10 ,  G01J3/502 ,  G01N21/57 ,  G01N2021/4742

Abstract: In an optical instrument for spectroscopically measuring color and gloss of a sample surface, a fiber optic probe is provided wherein light is transmitted from a light source to the probe through a fiber optic bundle. The fiber optic bundle is arranged to illuminate a surface positioned over an aperture in the probe. Light diffusely reflected from the sample surface is transmitted by a second fiber optic bundle to a spectrophotometer. A small fiber bundle is arranged in the probe to irradiate the surface of the sample at an angle of 60 degrees and a second small fiber bundle is arranged to receive light from the first mentioned small fiber bundle after being specularly reflected from the surface. The second fiber optic bundle transmits the received light to a photodetector in the spectrophotometer to provide an indication of the gloss of the sample surface.

Abstract translation: 在用于光谱测量样品表面的颜色和光泽的光学仪器中，提供光纤探针，其中光通过光纤束从光源传输到探针。 光纤束布置成照亮位于探针中的孔上方的表面。 从样品表面漫反射的光被第二光纤束传输到分光光度计。 在探针中布置有小纤维束，以60度的角度照射样品的表面，并且在从表面镜面反射后，设置第二小纤维束以接收来自第一所述的小纤维束的光。 第二光纤束将接收到的光传输到分光光度计中的光电检测器，以提供样品表面光泽的指示。