San Francisco artist Rex Ray is perhaps best known for his graphic designs for Apple Computer, Bill Graham Productions and David Bowie. But he's a fine artist first, as demonstrated by the knockout show Rex Ray: Recent Work at Rule Gallery. Ray, whose real name is Michael Patterson, lived for a time in Colorado, and he has occasionally exhibited here since settling in the Bay Area back in the '80s. For this show, he created an installation of nearly 500 drawings on one wall and surrounded it by scores of mixed-media collages on wood. There was a retro-'50s feel to these pieces, but they also looked newer than new.