Patent · US Active

Lens structure and projection apparatus

US11048149B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

Coretronic Corporation · TW

Inventors

Yun Wang · Beijing, CN
I-Hsien Liu · Hsinchu, TW
Ching-Feng Hsieh · Taipei, TW
Chien-Ming Peng · Baoshan, TW

Key dates

Filing date	Jul 22, 2020
Grant date	Jun 29, 2021
Priority date	—
Expiry date	Jul 22, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG03B21/145
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A lens structure includes a lens barrel, a frame, a first lens module, a second lens module, and an elastic sleeve. The frame leans against a rear end of the lens barrel. A first gap is provided between the lens barrel and the frame. The first lens module includes a first side exposed outside the lens barrel and a second side arranged in a front end of the lens barrel. A second gap is provided between the lens barrel and the first lens module. The second lens module includes a third side arranged in the rear end of the lens barrel and a fourth side exposed outside the frame. The elastic sleeve sleeved on the lens barrel includes a first end extending to the frame to completely cover the first gap and a second end extending to a portion of the first lens module to completely cover the second gap.

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