Double-enveloped halogen bulb provided with protuberances in the
Double-enveloped lamp having a shield surrounding a light-source
Dual arc tube discharge lamp having a lamp frame with coplanar s
Dual-color sensitometer
Dual-envelope high-pressure discharge lamp construction, and met
Duplex surge arrestors
Eccentric superconducting RF cavity separator structure
Electric arc discharge lamp
Electric beam accelerator
Electric discharge lamp assembly
Electric gas discharge lamp including an outer envelope and supp
Electric lamp
Electric lamp having an envelope with an intermediate zirconium
Electric lamp having improved support straps for planar seals
Electric lamp having screens for reducing photo electron emissio
Electric lamp subject to high operating temperatures
Electric lamp with containment sleeve having a helically coiled
Electric lamp with ellipsoidal shroud
Electric lamp with high outer-envelope to inner-envelope wall-th
Electric lamp with improved frame support and method of producin