| 摘要 |
An anamorphic lens for correcting aberration of a highly divergent beam from a laser source has first and second cylindrical surfaces having mutually perpendicular planes of symmetry. Each surface is defined from a generator polynomial including cross terms in two variables so as to correct aberration of light from a widely divergent source. Preferably, the generator polynomial is of the formThe coefficients in this polynomial may be determined by the use of ray tracing software. The lens may be employed as a collimating lens in an optical transmitter e.g. for use in an amplifier package.
|
