optical device

Abstract

The present invention provides an optical device capable of bending a planar optical member into a desired shape with high precision and capable of switching the shape. The optical device (1) includes a flat optical component (2) and a reinforcing component (3) joined to the back side (Z2) of the optical component (2), and the optical component (2) and the reinforcing component (3) form a flat plate panel (4). The optical device (1) has a driving device (100), and the driving device (100) makes the optical part (2) and the reinforcing The member (3) is also transformed into a flat shape or a curved shape formed by bending in the first direction (X) to the third direction (Z). When bending in the first direction (X) toward the third direction (Z), the rigidity of the reinforcing member (3) at the center side in the first direction (X) is greater than that at both ends.

Description

technical field [0001] The present invention relates to an optical device capable of using a planar optical member in a bent state. Background technique [0002] Flat-shaped optical components such as mirrors, organic electroluminescent display panels, and liquid crystal display panels sometimes become curved due to the fact that their base materials are made of metal plates, glass substrates, and the like. For example, a technique of bending a liquid crystal panel in response to usage conditions has been proposed (see Patent Documents 1 and 2). [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 6-3650 [0004] Patent Document 2: Japanese Patent Application Laid-Open No. 10-268790 [0005] However, in the techniques described in Patent Documents 1 and 2, since only a load is applied to the center portion or end portion of a flat plate-shaped optical member to bend it, even when it is bent in an arc shape, for example, there is a center There is a proble...

AI Technical Summary

Problems solved by technology

[0005] However, in the techniques described in Patent Documents 1 and 2, since a load is applied to the center portion or end portion of a flat plate-shaped optical member to bend it, even when it is bent in an arc shape, for example, there is a center The problem that the curvature of the part becomes smaller and cannot be bent into the desired shape with high precision

In addition, in the techniques described in Patent Documents 1 and 2, since the flat optical member is fixed so as to maintain a curved state, there is a problem that the shape cannot be changed according to the usage situation.

[0006] In addition, as shown in Fig. 19 (a) and Fig. 19 (b), it is conceivable to join the back plate 9 made of a steel plate with a constant thickness on the entire back side of the optical component 2, but even if such a back plate 9 is joined, it is very difficult. It is difficult to eliminate the problem that the curvature of the central part becomes smaller when bending as shown in Fig. 19(c)

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