| 摘要 |
Small flexible decals having a vinyl cling membrane base layer (20) attach onto the lens of conventional spectacles forming a training aid for use in sports activities such as golf. The decals cling firmly to the spectacle lens by cling attraction and do not require an adhesive. The decals occupy a small area of the lens and are positioned directly in line between the user's eyes and visual target. This creates the appearance of a projected decal image superimposed over the visual target. In golf the projected decal image appears superimposed over the golf ball and serves as a visual aid to the golfer. In one embodiment a tinted, transparent projected decal image (18) aids a golfer to establish proper alignment at address and reveals excessive head movement during the golf stroke. In another embodiment an opaque projected decal image (19) prevents the golfer from becoming visually fixated on the golf ball, thereby reducing stress and performance anxiety.
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