Tungsten halogen lamp with light source capsule containment device

A double-enveloped tungsten-halogen lamp comprising:

• (a) an outer envelope;
• (b) a light-source capsule;
• (c) a stem on which said light-source capsule is mounted within said outer envelope, said stem having a flare which is hermetically sealed to said outer envelope;
• (d) a containment mesh substantially surrounding said light-source capsule for absorbing burst energy and restricting shards of said light-source capsule from shattering said outer envelope in the event said light-source capsule bursts, said containment mesh having the ability to absorb substantial energy upon deformation therof by a capsule burst, said containment mesh having a sufficient number of stitches per inch to restrain those shards of said light-source capsule with mass large enough to cause a rupture of said outer envelope from passing through said mesh and impacting said outer envelope, said containment mesh being formed from light-reflecting metal wire and having a minimal effect on the efficacy of said lamp;
• and
• (e) mesh-mounting means for mounting said containment mesh about said light-source capsule, said mesh-mounting means including frictional forces exerted by said containment mesh itself.

A tungsten-halogen lamp comprising:

• (a) an outer envelope;
• (b) a single-ended light-source capsule having a top;
• (c) a stem on which said light-source capsule is mounted within said outer envelope, said stem having a flare which is hermetically sealed to said outer envelope;
• (d) a containment mesh substantially surrounding said light-source capsule for absorbing burst energy and restricting shards of said light-source capsule from shattering said outer envelope in the event said light-source capsule bursts, said containment mesh having the ability to absorb substantial energy upon deformation thereof by a capsule burst, said containment mesh having a sufficient number of stitches per inch to restrain those shards of said light-source capsule with mass large enough to cause a rupture of said outer envelope from passing through said mesh and impacting said outer envelope, said containment mesh being formed from light-reflecting metal wire and having a minimal effect on the efficacy of said lamp;
• (e) mesh-mounting means for mounting said containment mesh operatively with respect to said light-source capsule such that the electrical circuit of said lamp is operable;
• and
• (f) collision-absorbing means mounted within said outer envelope above said top of said light-source capsule.