Free-form prism-lens group and near-eye display apparatus

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United States of America Patent

PATENT NO 12111471
APP PUB NO 20220236572A1
SERIAL NO

17658651

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Abstract

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A free-form prism-lens group includes: a primary prism, a first auxiliary lens and a second auxiliary lens, the primary prism includes three optical surfaces, the first auxiliary lens is arranged adjacent to the primary prism and is not used for imaging the image light entering the first auxiliary lens; the second auxiliary lens is arranged adjacent to the primary prism and a gap with a predetermined thickness is arranged between the second auxiliary lens and the primary prism, the second auxiliary lens extends in a direction perpendicular to an optical axis to cover an effective aperture of the image light entering the second auxiliary lens from the primary prism.

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Patent Owner(s)

Patent OwnerAddress
BEIJING NED+AR DISPLAY TECHNOLOGY CO LTDNO 108 FLOOR 1 BUILDING 7 BLOCK 30 SHIXING STREET SHIJINGSHAN DISTRICT BEIJING 100041

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Dewen Beijing, CN 20 731
Wang, Qiwei Beijing, CN 110 110

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