| 摘要 |
<p>A one piece frame (10) for holding a holographic element (50) in a holographic system, and comprising a border portion (12), a seating portion (14), and a plurality of lateral positioning tabs (16). The border portion (12) forms an outside border of the frame (10), and is flexible between an open position for receiving the holographic element (50) and a closed position for holding the holographic element (50) in the frame (10). The seating portion (14) is connected to and extends inward from the border portion (12) to seat against a back surface of the holographic element (50). The lateral positioning tabs (16) are connected to and extend inward from the border portion (12), above the seating portion (14), and are spaced apart from each other along the border portion (12) to hold the holographic element (50) therein spaced from said border portion (12). The border portion (12) is biased toward the closed position to hold the holographic element (50) against the lateral positioning tabs (16) in a fixed position in, and with a preset angular orientation relative to, the frame (10), and to cooperate with the holographic element (50) to maintain the frame (10) in a fixed preset shape to facilitate placing and holding the holographic element (50) in a precise location and orientation in the holographic system.</p> |
