| 摘要 |
<p>A see-through display including a light source for emitting light, a projection optical system for projecting the light emitted by the light source, and a volume hologram for deflecting the light projected by the projection optical system. The volume hologram has a linear expansion coefficient ofα(/° C.) and interference fringes recorded with recording light having a wavelength ofΛ(nm). The wavelength of the light emitted by the light source has a temperature dependency of K (nm/° C.), and the wavelengthΛ(nm) and the temperature dependency K (nm/° C.) satisfy the relationship of 0≰K/Λ≰2α.</p> |
