The formation which transmits the endoscope device null visible light which possesses the optical component possessing the infrared cutting coat film and the infrared

摘要

PPROBLEM TO BE SOLVED: To provide an IR cut material that can cut IR rays in a wide wavelength range by one member without inducing cracks or chipping by heat generation, and to provide an endoscope device having the IR cut material. PSOLUTION: The IR cut coat film 2 comprises stacked layers 21, 22 transmitting visible rays Lv, and at least one layer of the layers 21, 22 transmitting visible rays Lv is an IR absorbing layer 21 having absorption in an IR wavelength region. The optical element 10 has the IR cut coat film 2, and the endoscope device has the optical element 10. PCOPYRIGHT: (C)2007,JPO&INPIT