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METHOD FOR DESIGNING PROGRESSIVE ADDITION LENS, SYSTEM FOR DESIGNING PROGRESSIVE ADDITION LENS, AND PROGRESSIVE ADDITION LENS GROUP
METHOD FOR DESIGNING PROGRESSIVE ADDITION LENS, SYSTEM FOR DESIGNING PROGRESSIVE ADDITION LENS, AND PROGRESSIVE ADDITION LENS GROUP
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机译:方法设计进步的镜头,系统设计进步的镜头,和进步的透镜组
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摘要
A method for designing a progressive addition lens and the related technology, the lens including a near portion for viewing a near distance, a distance portion for viewing a farther distance, and an intermediate portion between the near and distance portions and having a progressive refraction function, wherein transmission astigmatism is added to the near and intermediate portions out of the distance portion, the near portion, and the intermediate portion, the method including a mode selection step of determining, according to a prescription power, whether to select an AS-oriented mode wherein the amount of transmission astigmatism to be added is set so the amount of horizontal refractive power is larger than the vertical refractive power, or select a PW-oriented mode in which the amount of transmission astigmatism to be added is set so the amount of vertical refractive power is larger than the horizontal refractive power.
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