Distal end part of endoscope
First Claim
1. A distal end part of an endoscope comprising:
- a distal end block in said distal end part of said endoscope, said distal end block having a first hole extending perpendicularly to a longitudinal axis of said distal end block and a second hole extending along said longitudinal axis;
an objective optical system which is disposed in said first hole of said distal end block, so that an optical axis of said objective optical system perpendicularly intersects said longitudinal axis of said distal end block; and
a planar image sensor incorporated in said second hole of said distal end block along the longitudinal axis of said distal end block, and secured in opposing relation to said objective optical system to convert an image of an object, which is formed by said objective optical system, into an electric signal.
1 Assignment
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Accused Products
Abstract
A distal end part of an endoscope including an objective optical system which is disposed in the distal end portion of an insert part of the endoscope so that the optical axis of the objective optical system perpendicularly intersects the longitudinal axis of the distal end portion of the insert part. The distal end part further includes a planar image sensor which is incorporated in the distal end portion, so that it can be inserted and removed along the longitudinal axis of the distal end portion. The planar image sensor is secured in opposed relation to the objective optical system to convert an image of an object, which is formed by the objective optical system, into an electric signal.
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Citations
13 Claims
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1. A distal end part of an endoscope comprising:
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a distal end block in said distal end part of said endoscope, said distal end block having a first hole extending perpendicularly to a longitudinal axis of said distal end block and a second hole extending along said longitudinal axis; an objective optical system which is disposed in said first hole of said distal end block, so that an optical axis of said objective optical system perpendicularly intersects said longitudinal axis of said distal end block; and a planar image sensor incorporated in said second hole of said distal end block along the longitudinal axis of said distal end block, and secured in opposing relation to said objective optical system to convert an image of an object, which is formed by said objective optical system, into an electric signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for assembling a distal end part of an endoscope, said distal end part including an objective optical system, a planar image sensor, and a distal end block having a front and rear, the method comprising the steps of:
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inserting said planar image sensor into said distal end block from the rear and along a longitudinal axis of said distal end block toward the front; and inserting said objective optical system into said distal end block in a direction perpendicular to the longitudinal axis of said distal end block. - View Dependent Claims (12, 13)
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Specification