CPC A61B 46/10 (2016.02) [A61B 1/0011 (2013.01); A61B 1/00105 (2013.01); A61B 1/00126 (2013.01); A61B 1/00142 (2013.01); A61B 1/042 (2013.01); A61B 1/07 (2013.01); G02B 1/111 (2013.01); G02B 1/118 (2013.01); G02B 23/2469 (2013.01); G02B 23/26 (2013.01)] | 15 Claims |
1. An optical film provided on an endoscope camera drape including a drape section that covers a circumferential face of an endoscope camera, and a connecting member which is provided on a front end of the drape section and connects an endoscope and the endoscope camera, the optical film being provided on the connecting member, further comprising:
a reflection suppression section configured to suppress a reflection of incident light incident on the endoscope camera from the endoscope,
wherein the reflection suppression section is formed on both faces of the optical film,
wherein the reflection suppression section is a concave-convex structure formed on a surface of the optical film,
wherein a pitch of concavities and convexities included in the concave-convex structure of the reflection suppression section is less than or equal to a visible light wavelength,
wherein a surface of the optical film facing the endoscope is covered by a protective film,
wherein a concave-convex structure is also provided on the protective film, and
wherein a pitch of concavities and convexities of the concave-convex structure of the protective film is smaller than the pitch of the concavities and convexities of the concave-convex structure of the reflection suppression section.
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