초록 ▼

There is disclosed an optical device capable of deforming a member connecting a pair of optically transparent parallel-faced flat plates, thus varying the mutual angle of the paired flat plates and obtaining a predetermined optical performance on the passing light beam. The connecting member is form

There is disclosed an optical device capable of deforming a member connecting a pair of optically transparent parallel-faced flat plates, thus varying the mutual angle of the paired flat plates and obtaining a predetermined optical performance on the passing light beam. The connecting member is formed by connecting plural elastic members so as to form Y-shaped or modified Y-shaped cross section in a number at least equal to zero. The connecting member is formed, in at least a part of the elastic members, by one-layered or plural-layered polymer films.

대표청구항 ▼

An optical device, comprising in combination: a first transparent plate member on which light is incident, and a second transparent plate member from which said light is emitted, said plates being spaced apart from each other by a distance; first and second annular elastic members connecting said fi

An optical device, comprising in combination: a first transparent plate member on which light is incident, and a second transparent plate member from which said light is emitted, said plates being spaced apart from each other by a distance; first and second annular elastic members connecting said first and second transparent plate members, said first elastic member comprising an inside periphery that is connected with said first transparent member, said second elastic member comprising an inside periphery that is connected with said second transparent plate member, said first and second elastic members further comprising outside peripheries that are connected with each other, said first elastic member having an internal diameter that is greater than the internal diameter of said second elastic member; wherein a transparent and flexible material fills a space defined between said first and second transparent plate members by said first and second elastic members, whereby said optical device constitutes a variable-angle prism in which the first and second transparent plate members normally are substantially parallel, but can be changed therefrom by an external force.