LENS UNIT AND CEMENTED LENS
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United States of America
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N/A
Issued Date -
Mar 5, 2020
app pub date -
Aug 28, 2019
filing date -
Aug 28, 2019
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A cemented lens may include a first lens and a second lens connected via an adhesive layer. The first lens may include a convex surface facing toward the second lens, and a first flange surrounding an outer circumference of the convex surface. The second lens may include a concave surface connected to the convex surface, and a second flange surrounding an outer circumference of the concave surface. One of the first and second flange may include a projection protruding toward an other of the first and second flange. The other of the first and second flange may include an opposed portion opposed to a side surface of the projection Ga is a distance between the convex surface and the concave surface, and Gb is a distance between the side surface and the opposed portion, and the following expression: Gb
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