Three axis adjustment for emergency lights emitting an asymmetric beam pattern to illuminate a path of egress

An adjustable lighting head assembly, comprising:

• an adjustable lighting head, comprising:
• a housing comprising a sidewall that extends to a distal end and a slot that is formed on and through the sidewall of the housing, the sidewall surrounding a cavity formed within the housing, the distal end surrounding a light emitting opening formed adjacent to the cavity,
• wherein the slot extends in a longitudinal direction along the sidewall of the housing and through the vertex of the housing;
• a light source positioned within the cavity and oriented to emit light through the light emitting opening;
• an optic lens disposed over the light source and in contact with the distal end;
• and
• a cover coupled to the housing and comprising a base portion and a side portion, wherein the base portion covers an outer perimeter of the optic lens;
• and
• a mounting assembly coupled to the housing and passing through the slot,
• wherein the optic lens is rotatably positioned between the distal end of the housing and the cover by securely disposing the outer perimeter of the optic lens between the distal end of the housing and the base portion of the cover,
• wherein the cover includes one or more tabs extending from the side portion of the cover,
• wherein the one or more tabs of the cover snap fits into respective one or more notches located on the sidewall of the housing to couple and secure the cover to the housing such that when the cover is coupled to the housing, the optic lens rotates independent of the housing and the cover about a first axis, the first axis extending substantially perpendicularly from the optic lens and including a center portion of the optic lens,
• wherein the optic lens produces an asymmetric light beam output, and
• wherein an orientation of the asymmetric light beam output changes while a shape of the asymmetric light beam remains substantially constant when the optic lens is rotated.

A light fixture, comprising:

• a fixture housing;
• and
• at least two adjustable lighting head assemblies coupled to the fixture housing, each adjustable lighting head assembly, comprising:
• an adjustable lighting head, comprising:
• a housing comprising a sidewall that extends to a distal end and a slot that is formed on and through the sidewall of the housing, the sidewall surrounding a cavity formed within the housing, the distal end surrounding a light emitting opening formed adjacent to the cavity,
• wherein the slot extends in a longitudinal direction along the sidewall of the housing and through the vertex of the housing;
• a light source positioned within the cavity and oriented to emit light through the light emitting opening;
• an optic lens disposed over the light source and in contact with the distal end;
• and
• a cover coupled to the housing and comprising a base portion and a side portion, wherein the base portion is disposed over an outer perimeter of the optic lens such that the base portion covers the outer perimeter of the optic lens;
• and
• a mounting assembly coupled to the fixture housing and the housing of the adjustable lighting head through the slot,
• wherein the optic lens is rotatably positioned between the distal end of the housing and the cover by securely positioning the outer perimeter of the optic lens between the distal end of the housing and the base portion of the cover,
• wherein the cover includes one or more tabs extending from the side portion of the cover,
• wherein the one or more tabs of the cover snap fits into respective one or more notches located on the sidewall of the housing to couple and secure the cover to the housing such that when the cover is coupled to the housing, the optic lens rotates independent of the housing and the cover about a first axis, the first axis extending substantially perpendicularly from the optic lens and including a center portion of the optic lens,
• wherein the optic lens produces an asymmetric light beam output, and
• wherein an orientation of the asymmetric light beam output changes while a shape of the asymmetric light beam remains substantially constant when the optic lens is rotated.