Means for producing colored light beams

• US 2,673,923 A
• Filed: 12/03/1947
• Issued: 03/30/1954
• Est. Priority Date: 12/03/1947
• Status: Expired due to Term

• Current Assignee: Gillespie Williams Rollo
• Original Assignee: Gillespie Williams Rollo
• Inventors: GILLESPIE WILLIAMS ROLLO
• Application Number:
  US02/789,516
• Time in Patent Office: 2,309 Days
• US Class Current: 362/231
• CPC Class Codes: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios
• CPC Class Codes: G02B 27/1006 for splitting or combining different wavelengths G02B27/1086, G02B27/141 take precedence
• CPC Class Codes: G02B 27/123 The splitting element being a lens or a system of lenses, including arrays and surfaces with refractive power
• CPC Class Codes: G02B 27/143 using macroscopically faceted or segmented reflective surfaces

Claims