Patent · US Expired

Monocular borescope or endoscope with offset mask

US6508761B1 · kind B1 · utility

4Cited by

5References

11Claims

0Family size

Assignee

Keymed (Medical & Industrial Equipment) Limited · GB

Inventors

Andrew P. Ramsbottom · Bolton, GB
Philip Michael Coath · Port Douglas, AU

Key dates

Filing date	Mar 14, 2001
Grant date	Jan 21, 2003
Priority date	—
Expiry date	May 16, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG02B23/2446
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A monocular borescope or endoscope is provided with an image relaying means (16) defining a longitudinal axis (L)(and with a viewing means comprising an ocular lens (20) and field mask (18) defining a central axis (C) which is parallel to and offset from the longitudinal axis (L). In one embodiment the ocular lens (20) is coincident with the central axis (C) of the mask (18), while in another embodiment the ocular lens (20) is coincident with the longitudinal axis (L). The mask (18) is arranged to be mountable in a number of different rotational orientations each providing a different offset between the longitudinal axis (L) and the central axis (C).

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