LIGHT FLUX CONTROLLING MEMBER AND METAL MOLD
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United States of America
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Dec 5, 2024
app pub date -
May 23, 2024
filing date -
May 23, 2024
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Abstract
A light flux controlling member of the present invention includes: a vortex surface including a plurality of phase control surfaces having a vortex shape around a central axis and radially divided with the central axis at a center, and a plurality of step surfaces each configured to connect end portions of adjacent two phase control surfaces of the plurality of phase control surfaces. Upper sides of the plurality of step surfaces intersect each other at a center portion of the vortex surface. In side view, a curve extending from the center portion toward an outer periphery part of the vortex surface has an inflection point at the center portion of the vortex surface.
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