FIELD: light engineering. SUBSTANCE: pilot lamp has reflector, internal color reflector, external colorless reflector, and light source; reflector has paraboloidal reflecting segments lower ones being joined together through cylindrical or conical surface. Focal length $$$ of reflecting segments coincides with center of light source and focal point $$$ of respective reflecting segment is located in vicinity of reflector top, its length being (df). Internal reflector may be provided with Fresnel lend and external reflector, with dissipating components. EFFECT: improved design. 4 cl, 3 dwg
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SU752118A1 |
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RU2023939C1 |
