Sight device
AssigneeAsia Optical Co., Inc.
InventorShang-Yung Liang
Life of this patent
Estimating the term…
Abstract
A sight device includes a main lens barrel, an erector lens barrel, an objective lens unit and an erector unit. The erector lens barrel is disposed in the main lens barrel and includes a first end portion and a second end portion opposite to the first end portion. The objective lens unit is disposed in the main lens barrel, allowing an inverted real image is formed on a first image plane. The erector unit is disposed in the erector lens barrel, allowing the inverted real image and an image of an aiming reticle structure to form an upright real image on the second image plane. The first end portion and the first image plane are sequentially arranged along a direction from an objective lens end towards an ocular lens end. The second end portion and the second image plane have an interval therebetween.
Claims20
A sight device having an optical axis, comprising:
- a main lens barrel comprising an objective lens end and an ocular lens end, wherein the optical axis is extended in an axial direction of the main lens barrel and passes through the main lens barrel;
- an erector lens barrel comprising a first end portion and a second end portion disposed opposite to the first end portion, wherein the erector lens barrel is disposed in the main lens barrel and the optical axis extended in the axial direction of the main lens barrel is configured to pass through the first end portion and the second end portion;
- an objective lens unit disposed in the main lens barrel and disposed at the objective lens end, wherein the optical axis is extended to pass through the objective lens unit and the objective lens unit has a first image plane disposed at the first end portion;
- an erector unit disposed in the main lens barrel, wherein the optical axis is extended to pass through the erector unit and the erector unit has a second image plane;
- wherein the second end portion comprises a second end surface disposed towards the ocular lens end;
- wherein the second end surface and the second image plane are sequentially arranged along the optical axis from the objective lens end to the ocular lens end;
- wherein the second end surface and the second image plane have an interval therebetween.
A sight device having an optical axis, comprising:
- a main lens barrel comprising an objective lens end and an ocular lens end, wherein the optical axis is extended in an axial direction of the main lens barrel and passes through the main lens barrel;
- an erector lens barrel comprising a first end portion and a second end portion disposed opposite to the first end portion, wherein the erector lens barrel is disposed in the main lens barrel, the first end portion comprises a first end surface, the second end portion comprises a second end surface, and the optical axis extended in the axial direction of the main lens barrel is configured to sequentially pass through the first end surface, the first end portion, the second end portion, and the second end surface;
- an objective lens unit disposed in the main lens barrel and disposed at the objective lens end, wherein the optical axis is extended to pass through the objective lens unit and the objective lens unit has a first image plane disposed at the first end portion;
- an erector unit disposed in the main lens barrel, wherein the optical axis is extended to pass through the erector unit and the erector unit has a second image plane;
- wherein the first end surface has a first distance from the second end surface measured along the optical axis;
- wherein the first end surface has a second distance from the second image plane measured along the optical axis;
- wherein the first distance is less than the second distance and the first distance and the second distance have an interval therebetween.
Dependencies are inferred from the claim text.