Patent · US Active

Light source having a variable focal length

US7382976B1 · kind B1 · utility

9Cited by

5References

20Claims

0Family size

Assignee

Avago Technologies ECBU IP Pte. Ltd. · SG

Inventors

Thye Linn Mok · Bukit Mertajam, MY
Wooi Goon · Bukit Mertajam, MY
Gim Eng Chew · Bukit Mertajam, MY
Kee Yean Ng · Bukit Mertajam, MY
Janet Bee Yin Chua · Kuala Kangsar, MY
Rene Helbing · Palo Alto, US

Key dates

Filing date	Sep 9, 2005
Grant date	Jun 3, 2008
Priority date	—
Expiry date	Jul 22, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/855
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A variable focal length light source is constructed using a tunable focus length lens which can be adjusted in synchronization to the focal length of a camera lens. In one embodiment, a deformable lens is used in conjunction with an LED light source to provide the tunable focal length required for a camera flash device.

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