| 摘要 |
Disclosed is an optical connector plug includes an approximately square cylindrical rear cover of an insulating member fitted over an outer surface of a stop ring, and a cylindrical front cover which is urged frontward by an elastic member and is slidable back and forth at an outer surface of a plug frame. The front cover has a plate-like shutter having flexibility on an inner wall, which blocks the tip of a ferrule. The shutter has an upright curved portion formed by curving a tip side in an arc shape. When the front cover moves backward, the curved portion of the shutter is pressed against a tip of the plug frame to become flat and is pressed against the inner wall of the front cover to be retained in a plate form, thereby releasing a light-shielding state of the optical fiber.
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