| 摘要 |
Known prior art film cassettes for use with X-ray film materials do not provide good film contact between the intensifying screen and the film located therein. This is because the foam pad used provides relatively little force at the edge areas of the film as opposed to the areas distal from the edges. Described herein is an improved film cassette (12, 14, 16) having a base (14) and a cover (12) which is hinged (16) to the base (14) for closing the same and providing a light-tight space therebetween. A cushion member is secured in to the inside surface of the cover and an intensifying screen is secured to the outer surface of the cushion member. The cushion member comprises an inner layer and an outer layer secured together, the inner layer being secured to the cover (12). The inner layer is made of a material having a first density and the outer layer of a material having a second density which is greater than the first density such that a substantially uniform pressure is applied against the film placed in the space between the cover (12) and the base (14). <IMAGE> |
