Long range fresnel lens array for infrared motion detector

Information

  • Patent Grant
  • D341902
  • Patent Number
    D341,902
  • Date Filed
    Thursday, January 24, 1991
    33 years ago
  • Date Issued
    Tuesday, November 30, 1993
    30 years ago
Abstract
Description
Claims
  • The ornamental design for a long range fresnel lens array for infrared motion detector, as shown and described.
US Referenced Citations (8)
Number Name Date Kind
D315422 Claytor et al. Mar 1991
D315423 Claytor et al. Mar 1991
D315424 Claytor Mar 1991
D315425 Claytor et al. Mar 1991
D315806 Claytor et al. Mar 1991
D315807 Claytor et al. Mar 1991
D315808 Claytor et al. Mar 1991
D315966 Claytor et al. Apr 1991
Foreign Referenced Citations (2)
Number Date Country
968412 Feb 1958 DEX
2173013A Oct 1986 GBX