OPTICAL ELEMENT AND OPTICAL DEVICE USED FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide optical elements which effectively avert a display defect and the trouble of a device having a possibility of being caused by continuous use and an optical device using the device.

SOLUTION: The optical devices 10 of a fiber waveguide type having core parts for guiding light into tubular clad parts and the optical device 10 configured to be arrayed with a plurality of the optical elements 10 are arranged with liquid feeding means 101 for injecting a medium 14 on one end side of the optical elements 10 and are arranged with liquid recovering mean 102 for recovering the medium 14 on the other one end side. The means 101 and the means 102 are connected by a liquid recovering path 103 and the medium 14 recovered by the means 102 is fed through the path 103 into the means 101 so as to be reutilized and a medium tank 104 for supplying the medium to the means 101 is freely attachably and detachably connected to the means 101.

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