Borescope with simultaneous video and direct viewing
First Claim
1. An assembly for a borescope, comprising a body having a distal end for connection to an insertion tube and a proximal end providing an eyepiece into which an observer may look, the body containing a relay lens for receiving light from a relay system in the insertion tube, an ocular lens for creating a virtual image for viewing by an observer and a beam splitter device mounted in the optical path between the relay lens and the ocular lens and operable to divert a proportion of light received from the relay lens to an image-to-video conversion device mounted laterally to the optical path, and wherein the ocular lens, beam splitting device and image-to-video conversion device are located in a common mounting translatable in a direction parallel to the optical path to allow for focusing, and wherein said common mounting is supported by said body and translatable relative to said body.
1 Assignment
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Accused Products
Abstract
An assembly is described for connection to a borescope to simultaneously provide a virtual image for direct viewing by an observer and a video image for viewing on a display. The assembly (10) comprises a body (12) with a distal end for connection to an insertion tube of a borescope and a proximal end providing an eye piece into which an observer may look. The body contains a relay lens (16) and an ocular lens (18). A beam splitter (28) is mounted in the optical path between the relay lens (16) and the ocular lens (18) and diverts a proportion of light received from the relay lens (16) to an image-to-video conversion device (30) mounted laterally to the optical path. The ocular lens (18), beam splitting device (28) and the image-to-video conversion device (30) are all located in a common mounting (38) which can be translated in a direction parallel to the optical path to allow for focussing.
26 Citations
14 Claims
- 1. An assembly for a borescope, comprising a body having a distal end for connection to an insertion tube and a proximal end providing an eyepiece into which an observer may look, the body containing a relay lens for receiving light from a relay system in the insertion tube, an ocular lens for creating a virtual image for viewing by an observer and a beam splitter device mounted in the optical path between the relay lens and the ocular lens and operable to divert a proportion of light received from the relay lens to an image-to-video conversion device mounted laterally to the optical path, and wherein the ocular lens, beam splitting device and image-to-video conversion device are located in a common mounting translatable in a direction parallel to the optical path to allow for focusing, and wherein said common mounting is supported by said body and translatable relative to said body.
Specification