Asia Optical Co., Ltd.

Sintai Optical (shenzhen) Co., Ltd.

Asia Optical International Ltd.

Hua-Tang Liu

Yue-Ye Chen

Han Lu

Pie-Yau Chien

Sheng Luo

Lian Zhao

Fang-Li Ma

Bin Hua Liu

Bin Liu

Hui-Qing Chen

Peng-Fei Song

Zhi-Wei Gao

Yong-ce Qi

Ming Zhou

Yin-Long Luo

Chin-Hsiang Wang

Ching-Shiang Wang

Zhang-Ming Chang

Ke-Yu Qiu

Jun-Wei Che

We-Jie Lou

Sheng Liang

Jia-Jun Cao

Jian-Mei Chen

Fei Han

Jian Wei

Chih-Wei Hung

Jui-Feng Huang

Te-Wei Liu

Shou-Qing Yang

Zhang-Yong Jian

Chih-Hsiang Lin

Hai-Hua Chen

Liang Li

Shang Luo

Yi-Qi Li

Sing-Hung Huang

Chun-Guang Zhang

Xiao-Jun Zhang

Xin-Xin Lu

Yang-Yang Yu

Chao-Hung Chen

Peng-Chen Chang Chien

Ling-Wei Zhao

Jian-Fei Feng

Ling-Ben Yu

Yi-qi Li

Zhang-yong Jian

Yue-ye Chen

Aiming devices and methods thereof are provided. First, a ranging unit is used to perform a ranging operation on an object to obtain a corresponding object distance. Then, a plurality of compensation positions are displayed on a display unit of an aiming device, and a ballistic compensation program is used to calculate a target position among the compensation positions according to the object distance. When the aiming device moves, the number of the compensation positions displayed on the display unit will be changed. It is to determine whether the aiming device is located at the target position. When the aiming device is at the target position, the display unit will only display the target position among the compensation positions or no longer performs the compensation.

Aiming devices and methods thereof

An optical system includes an objective lens module, an image inverting module, and an eyepiece module. The objective lens module includes a first lens group, a second lens group, a third lens group, a fourth lens group, and a fifth lens group. The optical system satisfies at least one of the following conditions: 0.45≤LGD/LGD≤0.8; 0.015 mm≤1/fG≤0.045 mm; 0.045 mm≤|1/fG|≤0.07 mm; 0.35≤|fG/fG|≤0.75; 0.15≤fG/f≤1.6; wherein LGD is an effective optical diameter of the fourth lens group, LGD is an effective optical diameter of the first lens group, fGis an effective focal length of the first lens group, fGis an effective focal length of the third lens group, fGis an effective focal length of the fourth lens group, and f is an effective focal length of the objective lens module.

Optical system

A lens assembly for display includes a display, a lens assembly, and a prism assembly. The display emits a first light beam. The lens assembly includes a first, second, and third lenses. The prism assembly includes a first, second prisms, and an optical multilayer film, wherein the first prism includes a first, second, and third surfaces and the second prism includes a fourth, fifth, sixth, seventh, and eighth surfaces. The lens assembly for display satisfies at least one of following conditions: 0.60≤D/TTL≤0.75; 0.28≤D/f≤0.35; 4.56 mm≤D≤5.02 mm; wherein Dis an effective optical diameter of the light incident surface, TTL is an interval from the light incident surface to the light emitting surface along the optical axis, and fis an effective focal length of a combination of the first lens, the second lens, and the third lens.

Range finder and lens assembly for display thereof

An optical device includes an objective module, a prism module and an ocular module. The prism module includes a first prism, a second prism, a third prism and a first coating. The prism module is disposed between the objective module and the ocular module. A first light beam emitted by an object sequentially passes through the objective module, the prism module and the ocular module. Central axes of the objective module and the ocular module are in parallel without overlapping.

Optical device and prism module thereof

Optical device

An optical device includes an objective module, a prism module and an ocular module. The prism module includes a first prism, a second prism and a first coating. The prism module is disposed between the objective module and the ocular module. A first light beam emitted by an object sequentially passes through the objective module, the prism module and the ocular module. Central axes of the objective module and the ocular module are in parallel without overlapping.

A lens assembly for display includes a display, a lens assembly, and a prism assembly. The display emits a first light beam. The prism assembly includes a first, second prisms, and an optical multilayer film, wherein the first prism includes a first, second, and third surfaces; the second prism includes a fourth, fifth, sixth, seventh, and eighth surfaces; and the optical multilayer film is disposed between the third and fifth surfaces. A second light beam enters the first prism through the first surface and exits by the second surface. The first light beam exits the lens assembly and enters the second prism through the eighth surface, and exits the first prism by the second surface. The lens assembly and the prism assembly satisfy: 0.80%&#x2264;E/E&#x2264;0.95%; wherein Eis an energy of the first light beam emitted from the display and Eis an energy of the first light beam passes through the lens assembly.

Rangefinder

An optical lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with positive refractive power. The second lens is with positive refractive power. The third lens is with negative refractive power. The fourth lens is with positive refractive power and includes a convex surface facing the image side. The fifth lens is with negative refractive power and includes a concave surface facing the object side. The sixth lens is with positive refractive power and includes a convex surface facing the image side.

Optical lens assembly

A range finder includes a prism module and a prism adjusting mechanism. The prism module includes a fixing prism group and a movable prism group, wherein the fixing prism group is adjacent to the movable prism group. The prism adjusting mechanism includes a first adjusting group and a second adjusting group, wherein the first adjusting group includes a first adjusting member and a second adjusting member, and the second adjusting group includes a third adjusting member. The first adjusting member or the second adjusting member is rotated to axially move so that the movable prism group is rotated with respect to the fixing prism group about a first axis, the third adjusting member is rotated to axially move so that the movable prism group is rotated with respect to the fixing prism group about a second axis, and the first axis is perpendicular to the second axis.

Range finder

A rotating shaft mechanism includes a first connecting portion, a second connecting portion, a central shaft rotatably connected to the first connecting portion and the second connecting portion, and an adjusting unit disposed on the central shaft. The adjusting unit includes an adjusting ring disposed around the central shaft, a first washer disposed around the central shaft and configured to generate a force to the first connecting portion or the second connecting portion. A position of the adjusting ring with respect to the central shaft is axially adjustable for adjusting the force so that the first connecting portion or the second connecting portion is rotatable or fixed relative to the central shaft.

Rotating shaft mechanism

A prism and light transmitter module includes a prism holder, a light transmitter, a prism module, a drive circuit board, a shield, and a fixing assembly. The light transmitter is configured to emit or receive a light beam along a light axis. The prism module includes an inclined plane and is disposed within the prism holder with the inclined plane exposed. The drive circuit board is disposed above the inclined plane, and intersects with the light axis at a first angle. The shield is disposed on the drive circuit board. The fixing assembly connects to the prism holder, is configured to fix the drive circuit board, and includes a hole through which the light transmitter is exposed. A binocular capable of measuring distance includes a first optical system and a second optical system. The first optical system or/and the second optical system include the prism and light transmitter module.

Binocular capable of measuring distance and prism and light transmitter module thereof

A prism module includes a first prism including a first surface, a second surface and a third surface, a roof prism including a roof surface and a fourth surface, a second prism including a fifth surface, a sixth surface and a seventh surface, and a third prism including a light access surface, a first reflecting surface and a second reflecting surface. A light source is disposed above the second prism and adjacent to the first and the roof prisms. A light beam emitted by the light source enters and is reflected by the third prism, enters the second prism through the seventh surface, passes through the sixth surface, enters the first prism through the third surface, and is reflected by the second surface to leave the prism module. The light beam leaving the prism module is parallel to a baseline passing through the first, the second and the fourth surfaces.

Binocular capable of measuring distance and prism module thereof

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Taichung, Taiwan

Hua-Tang Liu