Apparatus for optically inspecting object having reflecting surface
AssigneeKabushiki Kaisha Machida Seisakusho
InventorToshio Chikama
Life of this patent
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Abstract
Apparatus for optically inspecting an object having a reflecting surface includes an irradiating device for emitting illuminating light; a shield member for reflecting the illuminating light to irradiate the object, and a light-receiving device for receiving an image of the object irradiated through the reflection of the illuminating light by the shield member. The shield member covers an extent of a field of vision of the light-receiving device through the reflection of the reflecting surface.
Claims8
An apparatus for optically inspecting defects on and/or within an object having a reflecting surface, said apparatus comprising:
- an elongated tubular body having one and the other longitudinal ends;
- a genrally V-shaped space disposed adjacent said one longitudinal end of said tubular body and defined by a front and a rear surface which are located respectively remote from and adjacent the other longitudinal end of said tubular body;
- a reflecting surface formed at said front surface;
- irradiating means located at said rear surface for emitting illuminating light toward said reflecting surface, said reflecting surface reflecting the illuminating light to irradiate the object;
- an image-transmitting system mounted in said tubular body and including light-receiving means located at said rear surface for receiving an image of the object irradiated by the illuminating light reflected by said reflecting surface, said light-receiving means having an optical axis extending obliquely with respect to a longitudinal axis of said tubular body;
- said reflecting surface having an area covering an extent of a field of vision of said light-receiving means through the reflection from the reflection surface of the object.
Dependencies are inferred from the claim text.