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一、为了把通过摄影物镜所摄取到的光线在三色分色中得到充分的利用,在分色措施中,采用了多层介质膜,多层介质膜的制备是依据计算所得到的数据制成的分色膜,它可使一部分光按照所需的光谱透过率τ(λ)透过(或按反射率ρ(λ)反射)其余的全反射(或透射)。按这一原理采用四分之一和八分之一波长控制制备了分色棱镜分光膜。这种棱镜分光膜,当光倾斜入射时较好的减小了方向效应和偏光效应。为了解决上述二效应,我们在设计(或计算)多层介质膜系和选择材料上予以充分考虑。通过对膜系中的每层光学厚度的计算和修正来减小偏振效应,以及采用偏振效应较小的膜系,解决方向效应的办法是采用我所制备的颜色玻璃作为修饰滤光片,使之减小干涉效应(而它与入射光线进入膜层的光程有关)。从而使同一组光线以不同方向入射这一膜层时,使出现的颜色差别减少。
First, in order to take the light taken through the photographic lens in the tricolor color separation to make full use of color separation measures, the use of multi-layer dielectric film, multi-layer dielectric film is prepared based on the data obtained from the system The dichroic film, which can be part of the light in accordance with the required spectral transmittance τ (λ) through (or reflectance ρ (λ) reflection) the other total reflection (or transmission). According to this principle using quarter and eighth wavelength control prepared dichroic prism film. This prism film, when the light is inclined to the incidence of the incident to reduce the directional effect and polarization effects. In order to solve these two effects, we have to design (or calculate) multi-layer dielectric film system and select the material to be fully considered. Through the calculation and correction of the optical thickness of each layer in the film system to reduce the polarization effect, and the use of the polarization effect of the smaller film system, to solve the direction effect is to use my color glass as a modified filter so that Which reduces the interference effect (which is related to the optical path of incident light into the film). So that the same set of light in different directions into the film, so that the emergence of the color difference decreases.