Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B3/00—Simple or compound lenses
  • G02B3/02—Simple or compound lenses with non-spherical faces
  • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
  • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
  • H01J9/22—Applying luminescent coatings
  • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
  • H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
  • H01J9/2272—Devices for carrying out the processes, e.g. light houses
  • H01J9/2273—Auxiliary lenses and filters

Landscapes

• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• General Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=23151408

Family Applications (1)

Country Status (8)

Families Citing this family (1)

Family Cites Families (1)

• 1973
  • 1973-09-26 AU AU60733/73A patent/AU474326B2/en not_active Expired
  • 1973-10-01 IT IT2961373A patent/IT995544B/it active
  • 1973-10-02 GB GB4592673A patent/GB1450590A/en not_active Expired
  • 1973-10-15 CA CA183,367A patent/CA1009484A/en not_active Expired
  • 1973-10-16 BE BE136761A patent/BE806156A/xx unknown
  • 1973-10-17 JP JP11675073A patent/JPS4975156A/ja active Pending
  • 1973-10-17 NL NL7314291A patent/NL7314291A/xx unknown
  • 1973-10-17 FR FR7337057A patent/FR2203983B1/fr not_active Expired

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