OPTICAL DEVICE HAVING HIGH REFLECTIVITY FILM

摘要

PROBLEM TO BE SOLVED: To provide an optical device having a faucet including a high reflectivity film on one side face. SOLUTION: The optical device (19) comprises at least the one faucet (13) covered with the high reflectivity film (15). A method for manufacturing a packaging having the device and the optical device is provided. A high reflectivity material contains at least one layer containing a tantalum oxide and preferably at least one silicon layer.