| 摘要 |
An optical component including a protective film laminated on its front side and a separator on its back side, of which the front or back is easily identified, a front/back identifying method for the component, which is simple, and neither hinders other inspections nor destroys/scratches the component, and a front/back identifying device for the component. Using the device including an analyzer 6 for an optical component 1 configured such that when a crossed Nicols arrangement is formed between the component 1 and the analyzer 6, an amount or a hue of light transmitting through the arrangement when placed in the arrangement is a protective film 3 differs from that when placed therein is a separator 5, the front or back of the component 1 is identified by observing the light to identify which film is placed in the arrangement based on the amount or the hue of the light.
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