Abstract: A method for making an optical memory storage medium which has a transparent substrate with void cells of empty spaces and ablative material on the cell walls is disclosed. In one example, a base plate is coated with a masking layer. Pits are formed on the plate by mechanically stamping the masking layer and the base plate with a punch. A layer of ablative material is next applied on the pitted plate. The masking layer is then removed, together with any ablative material on it. The base plate is joined with a cover plate that seals the top of the pits to form void cells. In another example, a base plate is coated with a photo resist. The photo resist is exposed and developed. Pits are formed on the plate by etching the uncovered areas of the base plate. This is followed by the application of ablative material and the removal of the photo resist. The base plate is joined with a cover plate that seals the top of the pits to form void cells.

Abstract: A method for making an optical memory storage medium which has a transparent substrate with void cells of empty spaces and ablative material on the cell walls is disclosed. In one example, a base plate is coated with a masking layer. Pits are formed on the plate by mechanically stamping the masking layer and the base plate with a punch. A layer of ablative material is next applied on the pitted plate. The masking layer is then removed, together with any ablative material on it. The base plate is joined with a cover plate that seals the top of the pits to form void cells. In another example, a base plate is coated with a photo resist. The photo resist is exposed and developed. Pits are formed on the plate by etching the uncovered areas of the base plate. This is followed by the application of ablative material and the removal of the photo resist. The base plate is joined with a cover plate that seals the top of the pits to form void cells.

Abstract: A method for making an optical memory storage medium which has a transparent substrate with void cells of empty spaces and ablative material on the cell walls is disclosed. In one example, a base plate is coated with a masking layer. Pits are formed on the plate by mechanically stamping the masking layer and the base plate with a punch. A layer of ablative material is next applied on the pitted plate. The masking layer is then removed, together with any ablative material on it. The base plate is joined with a cover plate that seals the top of the pits to form void cells. In another example, a base plate is coated with a photo resist. The photo resist is exposed and developed. Pits are formed on the plate by etching the uncovered areas of the base plate. This is followed by the application of ablative material and the removal of the photo resist. The base plate is joined with a cover plate that seals the top of the pits to form void cells.

Abstract: A method for making an optical memory storage medium which has a transparent substrate with void cells of empty spaces and ablative material on the cell walls is disclosed. In one example, a base plate is coated with a masking layer. Pits are formed on the plate by mechanically stamping the masking layer and the base plate with a punch. A layer of ablative material is next applied on the pitted plate. The masking layer is then removed, together with any ablative material on it. The base plate is joined with a cover plate that seals the top of the pits to form void cells. In another example, a base plate is coated with a photo resist. The photo resist is exposed and developed. Pits are formed on the plate by etching the uncovered areas of the base plate. This is followed by the application of ablative material and the removal of the photo resist. The base plate is joined with a cover plate that seals the top of the pits to form void cells.

Abstract: A method for making an optical memory storage medium which has a transparent substrate with void cells of empty spaces and ablative material on the cell walls is disclosed. In one example, a base plate is coated with a masking layer. Pits are formed on the plate by mechanically stamping the masking layer and the base plate with a punch. A layer of ablative material is next applied on the pitted plate. The masking layer is then removed, together with any ablative material on it. The base plate is joined with a cover plate that seals the top of the pits to form void cells. In another example, a base plate is coated with a photo resist. The photo resist is exposed and developed. Pits are formed on the plate by etching the uncovered areas of the base plate. This is followed by the application of ablative material and the removal of the photo resist. The base plate is joined with a cover plate that seals the top of the pits to form void cells.

Abstract: An information storage and retrieval system has a storage medium, a read device and a write device. The system uses light to transmit signals between the storage medium and the read, the write devices. And it is capable of both read and write operations. The storage medium has a substrate with a number of cells of empty spaces in it. The cell has an ablative material deposited on its wall. The pattern of distribution determines the information stored. To read an information, a light beam is directed towards a cell and the transmitted light is detected by a sensor. To write an information, the ablative material is vaporized and redistributed inside the cell by high intensity light beam. The storage medium can also be used to store visual images directly by having cells and pigment plates arranged regularly in a substrate.

Abstract: A collection device for energy from water with wave motion has working fluids, a number of pumping units and accumulators interconnected together, and valves to regulate the fluid flow. Each pumping unit has a chamber with an intake port connected to an accumulator, an exhaust port connected to another accumulator, and an outlet to the water. The working fluid in the chamber is in contact with the water, or is partitioned from the water by a flexible membrance or a piston. The pressure from the wave motion of the water pumps the working fluid from one accumulator to another with certain pressure or elevation increase. The working fluid gains suitable pressure or elevation increase through several stages of pumping units.