OPTICAL GLASS, AND OPTICAL ELEMENT AND OPTICAL DEVICE PREPARED WITH OPTICAL GLASS

摘要

PROBLEM TO BE SOLVED: To provide an optical glass with a high refractive index and low dispersion used for imaging devices and the like which are developed to have image sensors with a large number of pixels.SOLUTION: An optical glass contains, in mass%, SiOcomponent of 2-10%, BOcomponent of 14-28%, LaOcomponent of 20-38%, GdOcomponent of 16-36%, TaOcomponent of 3-12%, ZrOcomponent of 3-12%, YbOcomponent of 1-6%.SELECTED DRAWING: Figure 1