| 摘要 |
A laser diode for use in writing and reading information into and from film memory systems, which diode has a mask disposed over the light output face which is of a material which is opaque to the wavelength of the light output from the laser diode, and an aperture in the mask having at least one dimension which is determined by a corresponding dimension of the beam output by the diode in the stimulated light mode, and the method of making same.
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