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US 12,742,975 B2Granted
Optical system and virtual reality device
AssigneeBoe Technology Group Co., Ltd.
InventorsJiarong Bai, Ruijun Dong, Yulong Wu, Chenru Wang, Ke Li, Na Han, Haitao Huang, Zhanshan Ma, Lili Chen
Life of this patent
Estimating the term…
Abstract
An optical system, includes a first lens, a second lens and a third lens that are sequentially arranged from an image side to an object side, and principal optical axes of the first lens, the second lens and the third lens being collinear. The first lens is a convex lens, and at least one of the second lens and the third lens is a meniscus lens.
Claims20
An optical system, comprising:
- a first lens, a second lens and a third lens that are sequentially arranged from an image side to an object side, and principal optical axes of the first lens, the second lens and the third lens being collinear, wherein
- the first lens is a convex lens;
- and
- at least one of the second lens and the third lens is a meniscus lens;
- wherein
- a focal power of the second lens is positive, a focal power of the third lens is negative, and a sum of the focal power of the second lens and the focal power of the third lens is negative.
3 more elements
An optical system, comprising:
- a first lens, a second lens and a third lens that are sequentially arranged from an image side to an object side, and principal optical axes of the first lens, the second lens and the third lens being collinear, wherein
- the first lens is a convex lens;
- and
- at least one of the second lens and the third lens is a meniscus lens;
- wherein
- the first lens and the second lens are not in contact with each other;
- in an extending direction of the principal optical axes, a distance between surfaces of the first lens and the second lens that are close to each other is in a range from 0.5 mm to 3 mm, inclusive.
4 more elements
Dependencies are inferred from the claim text.