Abstract: An optical axis adjusting structure for a range finder including a range finder that includes a laser emitter, a telescope, and a laser receiver. The laser emitter is provided on the optical axis adjusting device such that a laser beam emitted thereby travels through a predetermined part of the interior of the telescope to project from the range finder. The optical axis adjusting device includes a first coupling portion that is secured on a predetermined part of the range finder, a second coupling portion having a predetermined part secured to the laser emitter with the other part provided on the first coupling portion such that it can reciprocatingly displace along a first direction, and at least one securing element provided between the first and second coupling portions to limit the relative position of the first and second coupling portions.

Abstract: A semitransparent mirror is attached to a holder on its objective side and an LED (light source) is attached to the holder on its ocular side. The light from the LED is reflected by the semitransparent mirror and provided as an aiming point. A receiving recess having an inclined axis is formed in one end of the holder on the objective side. A resilient ring, the semitransparent mirror and a support ring are received in the receiving recess in this order. Three or more adjusting screws are equally spacedly arranged in the circumferential direction. By selectively tightening the adjusting screws, the inclination of the semitransparent mirror is adjusted.

Abstract: In a sight scope, an erect sleeve is received in a scope body. An erect lens system is disposed within the erect sleeve. An erect lens system is pivotably supported at its end portion on the side of an eye piece by the scope body. The other end portion of the erect sleeve on the side of an objective is biased by a spring so as to contact an inner end face of an adjusting member of an inclination adjusting mechanism. The end portion of the erect sleeve on the side of the objective is moved by the adjusting member in a direction perpendicular to an axis of the scope body. By this, the erect sleeve is adjusted in its angle of inclination with respect to the axis of the scope body. A projection is formed on that end portion of the erect sleeve on the side of the objective. The projection is tapered when viewed in a direction perpendicular to the axis of the scope body. A top portion of this project is in contact with the inner end face of the adjusting member.

Abstract: In a sight scope device, a sleeve-like body is provided with a translucent mirror and a light source. Light emitted from the light source is reflected by the translucent mirror and proceeded toward an eyepiece side so as to served as an aiming point. A shield member interposed between the translucent mirror and the light source and having a plurality of through-holes is provided on the body. These through-holes have different areas, respectively, with each other. A movement of the shield member on a plane which is generally perpendicular to an axis of the body causes one of the through-holes to be selectively arranged or appeared on a line connecting the light source and the translucent mirror. The one of the through-holes is selected depending on a distance to a target.

Abstract: In a sight scope, an erect sleeve received in a scope body is inclined with respect to the axis of the scope body by an inclination adjusting mechanism. A movable sleeve capable of moving axially of the erect sleeve is disposed within the erect sleeve, and an erect lens system is supported by this movable sleeve. A position adjusting mechanism for moving the movable sleeve axially of the scope body includes a rotary member. This rotary member is allowed to extend all the way through the scope body and supported for turning about an axis extending radially of the scope body. The rotary member has a control handle formed on an external end of the rotary member and a cam member disposed on an internal end of it. A follower is received in the scope body. This follower is moved axially of the scope body in accordance with rotation of the cam member. The movement of this follower is transmitted to the movable sleeve through an association sleeve which is fitted to the outer periphery of the erect sleeve.