ピンホールコンタクトレンズ形成用治具

Japanese Patent JP7234053

B2

A method for efficiently and stably manufacturing a pinhole contact lens having a desired number and positions of pinholes, and a jig for manufacturing the pinhole contact lens. The jig includes a first male portion and a second male portion, a female portion, and a pinhole forming member. In the jig, the pinhole forming member includes a first column-shaped portion having a first outer diameter, and a second column-shaped portion having a second outer diameter larger than the first outer diameter, and the first and second column-shaped portions are vertically stacked on each other. The second male portion includes a coloring agent inflow hole extending through a protruding portion from a leading end to a rear end of the protruding portion. The female portion includes recessed portions on an upper surface side and a lower surface side, the recessed portions being designed to be fit a protruding portion of the first male portion and the protruding portion of the second male portion, respectively, and an insertion hole into which the pinhole forming member is to be inserted, the insertion hole extending through the recessed portions on the upper surface side and the lower surface side, and having a diameter larger than the first outer diameter and smaller than the second outer diameter. The recessed portions of the female portion inclu de, on the inner side thereof, an engagement portion to be in contact with a part of the leading end of the protruding portion of the respective male portions to be fitted. The first male portion and the female portion are designed so that, if the first male portion and the female portion are fitted together, the contact lens is sandwiched between a part of the leading end of the protruding portion of the first male portion and the engagement portion. The pinhole forming member is designed so that if the pinhole forming member is inserted into the insertion hole from the lower surface side of the female portion, an end of the first column-shaped portion comes into surface contact with the contact lens sandwiched between the first male portion and the female portion, and an end of the second column-shaped portion comes into surface contact with the leading end of the protruding portion of the second male portion.

Yuki Ueno

JP2019122082A

March 07, 2023

June 28, 2019

Click for automatic bibliography generation  

Seed corporation

B29C33/42; B29D11/00; G02C7/04

JP60217331A
JP2015049304A
JP63264719A
JP63098628A
JP2013210450A

WO2011048953A1

Toshiaki Morimoto

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