Bird Saver Light

Abstract

Bird Saver Light prevents or minimizes bird collisions with glazing. BSL is deployable from within a building. BSL operates on the critical Fourth Surface of insulated glazing units. BSL avoids warranty issues associated with films and appliqus. BSL is potentially critical in protecting wild bird populations.

Claims

1. Projecting ultraviolet light and ultraviolet shadows onto glazing surfaces prevents or drastically reduces bird/glazing collisions. Working within a building or structure is preferable from a safety and convenience perspective; BSL operates from within buildings or structures. Ultraviolet A light and UVA shadow projection systems are preferable to costly glazing UV integrated systems. Under any scenario it is imperative that the bird glazing avoidance system operate on the exterior glazing surface (surface 4 of dual pane insulated glazing) to prevent so-called veiling reflections; BSL projects onto all surface of insulated and un-insulated glazing units (referred to as surfaces 1, 2, 3, and 4 on insulated glazing). Surface 4 is the exterior surface of insulated glazing units. Films and decals may void the warranty of insulated glazing units. BSL avoids warranty issues.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG. 1 shows the components of the design in section and in context with an existing or proposed (new construction) glazing unit

[0014] FIG. 2 shows an axonometric diagram of the ultraviolet filter

[0015] FIG. 3 shows an elevation of what both a human and a bird see on a glazing unit without BSL

[0016] FIG. 4 shows an elevation of what a bird sees on a glazing unit with BSL

[0017] FIG. 5 shows what a human sees on a glazing unit with BSL

[0018] FIG. 6 shows the relative range of visible light perception for humans and birds

DETAILED DESCRIPTION OF THE INVENTION

[0019] Humans perceive light wavelinks from approximately 400 millimeters (mm) to approximately 700 mm.

[0020] As a result of the unique anatomy of a birds eye's they are able to perceive light in wavelinks from approximately 300 mm to 700 mm.

[0021] Light in wavelinks between 300 and 400 mm are referred to as ultraviolet or more specifically in this range as Ultraviolet A or UVA.

[0022] Ultraviolet B and Ultraviolet C (UVB and UVC respectively) are below 300 mm and are visible to neither birds nor humans.

[0023] By projecting ultraviolet light of approximately 365 mm in wavelink through an ultraviolet filter the BSL cast ultraviolet light and ultraviolet shadows onto the glazing surface in patterns clearly discernable to birds but invisible to humans.

[0024] BSL is equally adaptable to existing or proposed construction. BSL is comparatively cost effective compared to prior art glazing technologies.

[0025] BSL is easily and safely deployed from within the glazing unit, eliminating the costly or dangerous requirement of temporary exterior applications.