| 摘要 |
PURPOSE:To decrease the change in the transmittance of an optical shutter element with temp. by adhering light transmittable sintered ceramics consisting of different compsns. and having an electrooptic effect by a transparent adhesive agent each other and disposing transparent electrodes on both surfaces thereof. CONSTITUTION:Plural pieces of the transparent electrodes 44a, 44b are provided on both surfaces of a plate substrate made by adhering the light transmittable sintered ceramics 41, 42 consisting of PLZT (compsn. formed by substituting part of lead of lead titanate zirconate with lanthanum) having different compsn. by means of the transparent adhesive agent 43. The electrodes 44a, 44b are so disposed that the optical shutter parts on both surfaces to be formed by said electrodes do not overlap on each other. The change in the transmittance with temp. changes as well if the compsns. of the light transmittable sintered ceramics are different and therefore the change in the transmittance with temp. is smaller than the change when the light transmittable sintered ceramics is used in the form of a single plate. |
