Patent · US Active

Interactive lens assembly

US9977221B2 · kind B2 · utility

1Cited by

3References

16Claims

0Family size

Assignee

Zhejiang Sunny Optics Co., Ltd · CN

Inventors

Lin Huang · 丈亭镇, CN
Fujian Dai · Ningbo City, CN

Key dates

Filing date	Oct 28, 2015
Grant date	May 22, 2018
Priority date	—
Expiry date	Oct 28, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02B13/14
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Provided is an interactive lens assembly, including first lens, a second lens, an aperture stop, a third lens and a filter from an object side of the interactive lens assembly to an image side of the interactive lens assembly in turn. The first lens is of a negative focal power, an image side surface of the first lens is concave; the second lens is of a focal power; the third lens is of a positive focal power, an image side surface of the third lens is convex, and each of the first lens, the second lens and the third lens is made of a plastic material; the interactive lens assembly meets the following formulas: (CT1+CT2)/CT3<0.9; and ImgH/(f*TTL)≥0.4 mm−1.

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