Patent ID: 11946615
Assignee: SIGNIFY HOLDING B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 2:
3. The luminaire as claimed in claim 1, wherein each LED has a respective lens positioned on an optical axis of an associated LED die accommodated in a cavity in a lens base of the lens having an inner, light entry surface for coupling light from the LED die into the lens, the lens has a circular, concave light exit surface around the optical axis and opposite the lens base, the concave light exit surface being surrounded by a convex light exit surface to render the LED during operation to emit a rotational symmetric batwing beam with a maximum intensity Imax of the batwing beam at an angle β, wherein 60°<=β<=80° with said optical axis, and a FWHM in the range of 15-30°.