当前申请(专利权)人地址：
13995 Pasteur Blvd., Palm Beach Gardens, FL, US
摘要：
A light pattern generating device is provided and includes light sources arrayed at ninety degree intervals from each other and lenses arrayed in respective positional association with the light sources such that, when the light sources are activated, the light sources and the lenses generate at least a UL 1971 compliant light pattern.
权利要求：
1. A light pattern generating device (15), comprising: light sources (30) arrayed at ninety degree intervals from each other; characterised by: lenses (50) arrayed in respective positional association with the light sources (30) such that, when the light sources (30) are activated, the light sources (30) and the lenses (50) generate at least a UL 1971 compliant light pattern, wherein, when the light sources (30) are activated, each light source (30) and lens (50) combination provides a ¼ light output share at and around a zero angle position and a ½ light output share along an axis thereof, such that light source (30) and lens (50) combinations one hundred and eighty degrees apart generate overlapping light output patterns at and around the zero angle position and light source and lens combinations ninety degrees apart generate offset light output patterns that are offset from the zero angle position.
2. The light pattern generating device according to claim 1, further comprising a base (20) and a cover (21) that are both similarly annular or polygonal.
3. The light pattern generating device according to claim 1, further comprising an audio signal emission element (60).
4. The light pattern generating device according to claim 1, wherein the light sources (30) are coplanar and the lenses (50) are coplanar.
5. The light pattern generating device according to claim 1, wherein first and second pairs of the light sources (30) which are at one hundred and eighty degree intervals from each other are coaxial.
6. The light pattern generating device according to claim 1, wherein the light sources (30) comprise light emitting diodes (LEDs).
7. The light pattern generating device according to claim 1, wherein each lens (50) comprises a convex lens (51) element centered at a corresponding one of the light sources (30) and total internal reflector (TIR) and concave lens elements (53, 52) centered at the convex lens element (51).
8. A notification system for operation in a building (10) that comprises multiple floors (11) respectively defining rooms and hallways and a power supply system (12), the notification system comprising: wall or ceiling mounted notification devices (15) operably disposable in the rooms and hallways, each of the wall or ceiling mounted notification devices being a light pattern generating device according to claim 1, and comprising: a base (20) which is attachable to walls or ceilings in the rooms or hallways; four light source and lens combinations (3050) arrayed around a perimeter of the base (20) at ninety degree intervals from each other; and circuitry (40) which is electrically coupled to the power supply system (12) and which is operable to activate and deactivate the four light source and lens combinations (3050), wherein the four light source and lens combinations (3050) are configured to generate a UL 1971 compliant polar light pattern when the light source and lens combinations (3050) are activated by the circuitry (40).
9. The notification system according to claim 8, wherein: the four light sources (30) are coplanar and the four lenses (50) are coplanar, and first and second pairs of the light sources (30) which are at one hundred and eighty degree intervals from each other are coaxial.
10. The notification system according to claim 8, wherein the four light sources (30) comprise light emitting diodes (LEDs).
11. The notification system according to claim 8, wherein each lens (50) comprises a convex lens element (51) centered at a corresponding one of the four light sources (30) and total internal reflector (TIR) and concave lens elements (53, 52) centered at the convex lens element (51).