ApplicationNo. 05/724795 filed on 09/23/1976
US Classes:356/419, Including multicolor filters356/332, Having adjustable color or bandwidth359/578Electrically or mechanically variable (e.g., tunable, adjustable)
ExaminersPrimary: Evans, F. L.
Attorney, Agent or Firm
AbstractIn a spectrophotometer, light that has passed through, or been reflected from, a sample is carried by a fiberoptic bundle. The output end of the fiberoptic bundle is bonded to one side of a wedge-shaped linear variable interference filter. The other side of the filter is bonded to an array of photodiodes. Because each photodiode receives light that has passed through a different portion of the filter, each photodiode will respond to light of a different wavelength.