| CPC A61B 1/00193 (2013.01) [A61B 1/0005 (2013.01); A61B 1/00096 (2013.01); A61B 1/00183 (2013.01); A61B 1/00188 (2013.01)] | 3 Claims |
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1. A rigid scope device, comprising:
an outer lens barrel made of a rigid material and extending in a first direction;
a first inner lens barrel made of a rigid material, disposed in the outer lens barrel, and extending in the first direction;
a first optical system disposed in the first inner lens barrel and including a first optical axis extending in the first direction;
a second inner lens barrel made of a rigid material, disposed adjacent to the first inner lens barrel in the outer lens barrel, and extending in parallel with the first inner lens barrel;
a second optical system disposed in the second inner lens barrel and including a second optical axis extending in parallel with the first optical axis;
a single solid-state image sensing device that is disposed on one side of the first optical system and the second optical system in the first direction, that includes an imaging surface on which a first image is formed by a first light beam emerging from an observation target and passing through the first optical system, and a second image is formed by a second light beam emerging from the observation target and passing through the second optical system, and that is configured to convert light received by the imaging surface into an electric signal;
a picture display unit including a display surface configured to display a first picture corresponding to the first image and a second picture corresponding to the second image based on the electric signal; and
an optical path adjustment unit interposed between the outer lens barrel and the solid-state image sensing device,
the optical path adjustment unit being configured to adjust at least one of the first light beam or the second light beam on the display surface, such that the first picture and the second picture do not overlap each other and a reference point of the observation target in the first picture and the reference point in the second picture are located at a same height as viewed by an observer,
wherein the optical path adjustment unit is configured to adjust the first light beam and the second light beam and includes:
a first lens prism disposed on one side of the first optical system in the first direction and configured to refract the first light beam to one side in a second direction at an opposite side of the first optical system from the second optical system, the second direction being a direction along a straight line passing through the first optical axis and the second optical axis as viewed from the first direction,
a first position adjustment lens system that adjusts the first light beam refracted by the first lens prism such that the first image is formed at a predetermined position,
a first focus adjustment lens system that is disposed on one side of the first position adjustment lens system in the first direction and adjusts a focal position of the first optical system,
a second lens prism configured to refract the first light beam passing through the first focus adjustment lens system to the other side in the second direction,
a third lens prism disposed on one side of the second optical system in the first
direction and configured to refract the second light beam toward the other side in the second direction,
a second position adjustment lens system that adjusts the second light beam refracted by the third lens prism such that the second image is formed at a predetermined position,
a second focus adjustment lens system that is disposed on one side of the second position adjustment lens system in the first direction and adjusts a focal position of the second optical system,
a fourth lens prism configured to refract the second light beam passing through the second focus adjustment lens system to the one side in the second direction,
a first shielding portion that is disposed on the one side in the second direction between the first position adjustment lens system and the first focus adjustment lens system and shields the first light beam such that a picture corresponding to a portion included in the first image and not included in the second image is not included in the first picture, and
a second shielding portion that is disposed on the other side in the second direction between the second position adjustment lens system and the second focus adjustment lens system and shields the second light beam such that a picture corresponding to a portion included in the second image and not included in the first image is not included in the second picture,
wherein the first shielding portion has a plate thickness direction as the first direction and a rectangular plate shape when viewed from the first direction and extends from a portion of a peripheral wall portion of a case portion which is located one side in the second direction to the other side in the second direction, and
wherein the second shielding portion has a plate thickness direction as the first direction and a rectangular plate shape when viewed from the first direction and extends from a portion of the peripheral wall portion of the case portion which is located the other side in the second direction to the one side in the second direction.
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