Concraft Holding Co., Ltd.

Dragonstate Technology Co., Ltd.

Jie-Ru Chen

Chin-Hsing Lee

Feng-Cheng Chung

Tzu-Ching Tsai

Si-Si He

A micro speaker with amplitude stability, includes a vibrating diaphragm unit, a magnetic unit which is disposed below the vibrating diaphragm unit, and a circuit unit which is disposed between the vibrating diaphragm unit and the magnetic unit. The vibrating diaphragm unit includes a diaphragm which is connected with a voice coil; whereas the diaphragm and the voice coil are connected electrically by an upper fixing arm on the vibrating diaphragm unit, and a pair of flexible circuit board disposed in the circuit unit. The circuit unit also includes plural lower fixing arms to connect and support the flexible circuit boards. Therefore, when an external power source energizes the circuit unit, the voice coil can drive the diaphragm to generate a stable amplitude along the height of the magnetic element, through the upper fixing arm and the lower fixing arms.

Micro speaker with amplitude stability

The present invention discloses a micro speaker unit with a waterproof effect, including an outer casing which is provided with an accommodation space and a sound hole, and a micro speaker which is installed in the accommodation space. The micro speaker is assembled from a vibrating diaphragm assembly and a magnetic assembly which is inter-assembled with the vibrating diaphragm assembly. The vibrating diaphragm assembly separates the accommodation space into a front chamber and a rear chamber which are not interconnected; whereas, the front chamber is connected with the sound hole. Therefore, water vapor outside the micro speaker unit can be prevented from entering into the rear chamber and the micro speaker by the vibrating diaphragm assembly, thereby improving the waterproof effect of the entire micro speaker unit.

Micro speaker unit with a waterproof effect

The present invention discloses a Fresnel lens with a light receiving effect, including a converging surface and an incidence surface opposite to the converging surface. The incidence surface is provided with an optically effective refractive region and an optically reflective region annularly surrounding the optically effective refractive region. The optically reflective region is provided at least with a prism annularly disposed outside the optically effective refractive region. The prism is provided with a refraction surface which is in adjacent to the optically effective refractive region and a reflection surface which is disposed at a first angle relative to the refraction surface. In addition, a tail end of the prism is an inverted hook part. Therefore, the effective working area of the refraction surface and the reflection surface can be increased, thereby improving the light receiving effect of the Fresnel lens.

Fresnel lens with a light receiving effect

A lens structure formed by materials in different refractive indexes includes a sphere which is a round ball formed by a first portion and a second portion, a first lens which is formed on the first portion, a separation layer which is disposed between the sphere and the first lens, a second lens which is formed on the second portion, and a third lens which is formed on the second lens and opposite to the sphere. The first lens, the second lens and the third lens are formed respectively by a material in different refractive index and are provided respectively with a light absorption curve in different curvature, so that a light beam can pass through these light absorption curves to form plural times of light condensing effect.

Lens structure formed by materials in different refractive indexes

A lens structure formed by materials in different refractive indexes includes a transparent sphere in a first refractive index as well as a transparent second lens in a second refractive index. The first refractive index is different from the second refractive index, and the sphere is a round ball formed by a first portion and a second portion which are equipped with a first light condensing effect. The first lens is formed on the first portion of the sphere, the second portion of the sphere is exposed out of the first lens, and the first lens is provided with a first light absorption curve opposite to the first portion of the sphere, so that a light beam can pass through the second portion of the sphere to form the first light condensing effect, and then pass through the first light absorption curve to form a second light condensing effect.

A lens structure formed by materials in different refractive indexes includes a sphere, a first lens and a separation layer which is disposed between the sphere and the first lens. The sphere and the first lens have a different refractive index and the sphere is a round ball. The first lens is formed on the sphere that part of the sphere is exposed out of the first lens, and the first lens includes a first light absorption curve. The separation layer includes a transparent section opposite to the first light absorption curve. When a light beam passes through the second portion of the sphere to form a first light condensing effect and enter the sphere, the light beam will then pass through the transparent section to enter the first lens, forming a second light condensing effect after passing through the first light absorption curve.

A varifocal lens module, consisting of a casing provided with a holding chamber, an opening end, an interconnecting hole, a soft lens disposed on the casing to seal the holding chamber, and a medium control device connects to the interconnecting hole. The soft lens is provided with a first curved surface having a first curvature exposed external of the casing and a second curved surface having a second curvature positioned interior of the holding chamber corresponding to the first curved surface. The medium control device is connected to the interconnecting hole for controlling the volume of the medium inside the holding chamber, whereby the change in volume of the medium changes the compression on the second curved surface, thereby modifying the second curvature of the second curved surface, producing a variation in the spacing between the second curved surface and the first curved surface to achieve a varifocal effect.

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Taipei, Taiwan

Jie-Ru Chen