公开(公告)号：US3749497A

公开(公告)日：1973-07-31

申请号：US3749497D

申请日：1971-12-15

Applicant: KUZMIN S

Inventor： KUZMIN S

IPC: G01J1/08 ,  G01J3/42 ,  G02B17/00

CPC classification number: G01J1/08

Abstract: In a spectrophotometer a light beam consecutively passes through a monochromator, a sample and standard light channel mirrorswitch; the spectrometer includes a device for focusing an image of the monochromator exit slit on the sample and standard. The device for focusing an image of the monochromatic slit is made in the form of a mirror objective common to the sample and standard light channels. The mirror objective comprises a convex mirror and a concave mirror, and, the convex mirror is being provided with a device for imparting periodic oscillations thereto and acting as a switching mirror element, thereby making a collimated beam alternately incident on a sample and a standard reference element. A photo sensitive device is provided to measure the amount of light passing through the sample in comparison with the light passing through the standard reference element depending on their relative optical densities.

Abstract translation: 在分光光度计中，光束连续地通过单色仪，样品和标准光通道镜面开关; 光谱仪包括用于将单色仪出口狭缝的图像聚焦在样品和标准上的装置。 用于聚焦单色狭缝的图像的装置以样品和标准光通道共同的镜像对象的形式制成。 镜面物镜包括凸面镜和凹面镜，并且凸面镜具有用于给周期性振荡并用作切换镜元件的装置，从而使准直光束交替地入射到样品上并且标准参考 元件。 提供光敏装置，用于测量通过样品的光量与根据其相对光密度通过标准参考元件的光线相比。