Endoscope and camera module

Abstract

An endoscope includes a lens, an imaging element, an element cover glass configured to cover an imaging surface of the imaging element, a lighting member, and a light-shielding member disposed between the lens and the lighting member. The lens has a quadrangular outer shape in a direction perpendicular to a direction along a center axis of the lens. The imaging element has a quadrangular outer shape in the direction perpendicular to the direction along the center axis of the lens. The lighting member is disposed outside a side of the lens and extends in the direction along the center axis of the lens. The light-shielding member extends in the direction along the center axis of the lens from an insertion tip surface in a tip portion of the endoscope to the imaging surface of the imaging element. The lens is attached to the element cover glass via an adhesive resin.

What is claimed is: 
     
         1 . An endoscope comprising:
 a lens that has a quadrangular outer shape in a direction perpendicular to a direction along a center axis of the lens;   an imaging element that has a quadrangular outer shape in the direction perpendicular to the direction along the center axis of the lens;   an element cover glass configured to cover an imaging surface of the imaging element;   a lighting member that is disposed outside at least one side of the lens and extends in the direction along the center axis of the lens; and   a light-shielding member that is disposed between the lens and the lighting member,   wherein the light-shielding member extends in the direction along the center axis of the lens from an insertion tip surface in a tip portion of the endoscope to the imaging surface of the imaging element, and   wherein the lens is attached to the element cover glass via an adhesive resin.   
     
     
         2 . The endoscope according to  claim 1 ,
 wherein the light-shielding member coaxially accommodates the lens,   wherein an outer peripheral surface of the light-shielding member includes a notch that extends in the direction along the center axis of the lens, and   wherein the lighting member is disposed within the notch.   
     
     
         3 . The endoscope according to  claim 1 ,
 wherein the light-shielding member coaxially accommodates the lens,   wherein a through-hole is provided between an outer peripheral surface of the light-shielding member and one side of the lens and extends in the direction along the center axis of the lens, and   wherein the lighting member is disposed within the through-hole.   
     
     
         4 . The endoscope according to  claim 1 ,
 wherein the light-shielding member is comprised of resin and configured to cover an outside surface of the lighting member.   
     
     
         5 . The endoscope according to  claim 1 ,
 wherein the light-shielding member is a pipe into which the lighting member is inserted.   
     
     
         6 . The endoscope according to  claim 1 , further comprising:
 a sheath that surrounds the light-shielding member,   wherein the lighting member is disposed between the sheath and the light-shielding member.   
     
     
         7 . The endoscope according to  claim 1 ,
 where the element cover glass, the lens and the imaging element are disposed within the light-shielding member.   
     
     
         8 . A camera module comprising:
 a lens that has a quadrangular outer shape in a direction perpendicular to a direction along a center axis of the lens;   an imaging element that has a quadrangular outer shape in the direction perpendicular to the direction along the center axis of the lens;   an element cover glass configured to cover an imaging surface of the imaging element;   a lighting member that is disposed outside at least one side of the lens and extends in the direction along the center axis of the lens;   a light-shielding member that is disposed between the lens and the lighting member; and   an objective cover glass having a surface that is disposed at an end of the light-shielding member,   wherein the light-shielding member extends in the direction along the center axis of the lens from the surface of the objective cover glass that is disposed at the end of the light-shielding member to the imaging surface of the imaging element, and   wherein the lens is attached to the element cover glass via an adhesive resin.   
     
     
         9 . The camera module according to  claim 8 , further comprising:
 a sheath that surrounds the light-shielding member,   wherein the lighting member is disposed between the sheath and the light-shielding member.   
     
     
         10 . The camera module according to  claim 8 ,
 where the objective cover glass, the element cover glass, the lens and the imaging element are disposed within the light-shielding member   
     
     
         11 . The camera module according to  claim 8 ,
 wherein an outer peripheral surface of the light-shielding member includes a notch that extends in the direction along the center axis of the lens, and   wherein the lighting member is disposed within the notch.   
     
     
         12 . The endoscope according to  claim 1 ,
 wherein the lighting member is composed by a plurality of optical fibers, and   wherein the plurality of optical fibers are arranged along at least one side of a lens side surface of the lens.   
     
     
         13 . The camera module according to  claim 8 ,
 wherein the lighting member is composed by a plurality of optical fibers, and   wherein the plurality of optical fibers are arranged along at least one side of a lens side of the lens.