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US 2026/0309897 A1Published application
Imaging Lighting Lenses
OwnerAlex Ning, Jingbo Caiinventors
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OwnerAlex Ning, Jingbo Caiinventors
Estimating the term…
A lens system design for an imaging projection lens is described. The system enables selection of performance requirements of a high or low resolution lens system as described through a set of examples meeting a set of parametric equations. A low resolution imaging lenses has a field angle between 15 and 20 degrees and effective focal lengths (EFL) between 18 and 25. The high resolution lens systems have an EFL between 30 and 38 source and field angles between 10 and 12 degrees. The examples all use a 12.8 mm light source (Ah). The lens system is scaled to other size light sources using the parametric equation for EFL/Ah. The lens system comprises two positive powered lens groups. There are 3 lens elements in a first group and 1 to 3 lens element in a second group, the second group is nearest the light source.
An imaging lighting lens system having an effective focal length (EFL), a total track length (TTL), and an f-number (F/#), used for projecting light from an array light source having a width (Ah) and located at an image plane, the lens system comprising two lens groups, each lens group comprised of lens elements each lens element having two radii of curvature (Ri) and the groups ordered from object to image:
An imaging lighting lens system having an effective focal length (EFL), a total track length (TTL), and an f-number (F/#), used for projecting light from an array light source having a width (Ah) and located at an image plane, the lens system comprising two lens groups, each lens group comprised of lens elements each lens element having two radii of curvature (Ri) and the groups ordered from object to image:
Dependencies are inferred from the claim text.