Patent · US Active

Projection lens assembly

US10996433B2 · kind B2 · utility

0Cited by

0References

16Claims

0Family size

Assignee

Zhejiang Sunny Optical Co., Ltd · CN

Inventors

Lin Huang · 丈亭镇, CN
Xinquan Wang · Zhejiang, CN

Key dates

Filing date	Dec 21, 2018
Grant date	May 4, 2021
Priority date	—
Expiry date	Jun 5, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02B13/008
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A projection lens assembly is provided. The projection lens assembly includes sequentially from a source-side to an image-side along an optical axis: a first lens and a second lens. The first lens has a negative refractive power, a source-side surface of the first lens is a concave surface, and an image-side surface of the first lens is a convex surface. The second lens has a positive refractive power, and an image-side surface of the second lens is a convex surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.