Patent ID: 7760424
Filing Date: 2010-07-20
Classification: C03C,G02B

Abstract:
1. An infrared reflecting device including an infrared reflecting member for reflecting infrared radiation, the infrared reflecting member comprising: colloidal crystal particles arrayed at regular lattice spacing; and a filler interposed between the colloidal crystal particles, the filler changing the lattice spacing of the colloidal crystal particles by expanding and contracting in response to an external stimulus and, thereby shifting reflected wavelength of the infrared reflecting member to the infrared region from a region of lower wavelength than infrared, and wherein the device includes multiple layers of the infrared reflecting member, each of the multiple layers of the infrared reflecting member including colloidal crystal particles having a particle diameter differing from a particle diameter of colloidal crystal particles of at least one other of the multiple layers of the infrared reflecting member.