OPTICAL COMPONENT AND METHOD FOR MANUFACTURING SAME
Provided is an optical component whereby the absence of eccentricity can be instantly confirmed visually even in a case that the optical component has Fresnel lens or other very fine structure. An optical component of the present invention includes an optical part and a peripheral part thereof. The...
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| creator | FUJIKAWA, Takeshi FUKUI, Sadayuki |
| description | Provided is an optical component whereby the absence of eccentricity can be instantly confirmed visually even in a case that the optical component has Fresnel lens or other very fine structure. An optical component of the present invention includes an optical part and a peripheral part thereof. The optical component includes recognition marks in positions substantially plane-symmetrical to each other on a front surface side and a rear surface side of the peripheral part, the recognition marks being expressed as a recess or a projection and configured to allow eccentricity to be recognized. Two of the recognition marks are preferably similar to each other in shape, one recognition mark being preferably from 10% to 90% the size of the other recognition mark. |
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| language | eng ; fre ; ger |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | OPTICAL COMPONENT AND METHOD FOR MANUFACTURING SAME |
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