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US 11,899,290 B1Granted
Prismatic lens
OwnerEric Rubinfeldinventor
Life of this patent
Estimating the term…
Abstract
According to some embodiments, a progressive addition lens includes a distance portion and a reading portion. The distance portion includes a fixed prism diopter power. The reading portion includes a fixed base in prism. The fixed base in prism comprises a diopter power between 0 to 10 diopters greater than the fixed prism diopter power of the distance portion.
Claims7
A progressive addition lens comprising:
- a distance portion comprising a fixed prism diopter power;
- and
- a reading portion including a fixed prism diopter power wherein the reading portion includes a fixed base in prism comprising a diopter power 1.5 diopters greater than the fixed prism diopter power of the distance portion.
A progressive addition lens comprising:
- a distance portion comprising a first fixed prism diopter power;
- an intermediate portion comprising a second fixed prism diopter power;
- and
- a reading portion including a fixed base in prism comprising a diopter power 1.5 diopters greater than the first fixed prism diopter power of the distance portion.
1 more element
A pair of glasses comprising:
- a frame;
- and
- a lens, wherein the lens comprises a distance portion comprising a first fixed prism diopter power, an intermediate portion comprising a second fixed diopter power, and a reading portion including a fixed base in prism comprising a diopter power 1.5 diopters greater than the fixed diopter power of the distance portion.
Dependencies are inferred from the claim text.