초록 ▼

An improved barrier light assembly is provided of the type wherein the lens subassembly is pivotable relative to the case subassembly. The assembly employs a limited field light source (preferably an LED with a field of about 34°), and incorporates a self-orienting, lens coupled holding and position

An improved barrier light assembly is provided of the type wherein the lens subassembly is pivotable relative to the case subassembly. The assembly employs a limited field light source (preferably an LED with a field of about 34°), and incorporates a self-orienting, lens coupled holding and positioning subassembly for such a light source whereby this light source remains fixed at the lens subassembly focal point with its emission center line extending along the lens center line regardless of the pivoted position of the lens subassembly.

대표청구항 ▼

In a barrier light assembly of the type comprising in combination: a case subassembly; a lens subassembly adjacent to and supported by said case subassembly and pivotable relative thereto about a generally vertical axis, said lens assembly including a lens with peripherally associated wall portions

In a barrier light assembly of the type comprising in combination: a case subassembly; a lens subassembly adjacent to and supported by said case subassembly and pivotable relative thereto about a generally vertical axis, said lens assembly including a lens with peripherally associated wall portions which together with said lens extend about and define an interior chamber, said lens having a lens center line and also a lens focal point that is located in said chamber along said lens center line, said focal point being substantially coincident with said vertical axis; a housing subassembly for electrical components configured for nestable receipt in said case subassembly and having an elongated projecting pedestal which extends into said lens subassembly along said vertical axis; and a light source in said interior chamber case assembly; an improvement which comprises: said light source having a limited light emitting field that is distributed about an emission center line; holder means for said light source; and a self-orienting, lens subassembly coupled holding and positioning subassembly for said light source, said holding and positioning means comprising in combination: (1) bushing means slidably engaging said pedestal and rotatable relative thereto; (2) sleeve means slidably engaging said bushing means and including means for keying said sleeve means to said bushing means so that said sleeve means and said bushing means rotate together, and further including sleeve portions for engaging interior portions of said lens subassembly so that said sleeve means and said lens subassembly rotate together; and (3) bracket means interconnecting said bushing means with said holder means so that said light source is maintainable with said emission center line located approximately along said lens center line and with said light source located about at said focal point; an interrelationship between said light source, said holder means, said holding and positioning subassembly, said lens subassembly, said housing subassembly and said case subassembly being such that, when said lens subassembly is so pivoted, said light source remains at said lens focal point and said lens center line remains approximately coincident with said emission center line.