Largan Precision Co., Ltd.

Kuo-Chiang Chu

Chien-Pang Chang

Wen-Yu Tsai

Ming-Ta Chou

Chun-Hung Teng

Lin-An Chang

Heng-Yi Su

Cheng-Feng Lin

Wei-Fong Hong

Chi-Wei Chi

Cheng-Yu Tsai

Chen-Wei Fan

Cheng-Fen Lin

An optical lens assembly includes a glass lens element. The glass lens element has a refractive power, an optical surface of the glass lens element is non-planar, an anti-reflective membrane layer is formed on the optical surface, and the anti-reflective membrane layer includes a nanostructure layer and a structure connection film. The nanostructure layer has a plurality of ridge-like protrusions extending non-directionally from the optical surface, and a material of the nanostructure layer includes aluminum oxide. The structure connection film is disposed between the optical surface and the nanostructure layer, the structure connection film includes at least one silicon dioxide layer, the at least one silicon dioxide layer contacts a bottom of the nanostructure layer physically, and a thickness of the at least one silicon dioxide layer is greater than or equal to 20 nm and less than or equal to 150 nm.

Optical lens assembly and optical module

A plastic light-folding element includes an incident surface, an exit surface, a reflective surface and a reflective optical layer. The incident surface and the exit surface are configured to lead an imaging light enter and exit the plastic light-folding element, respectively. The reflective surface is configured to fold the imaging light. The reflective optical layer is disposed on the reflective surface, and includes an Ag layer, a bottom layer optical film and a top layer optical film. The bottom layer optical film is contacted with the Ag layer, and the bottom layer optical film is closer to the reflective surface than the Ag layer to the reflective surface. A refractive index of the top layer optical film is lower than a refractive index of the bottom layer optical film, and the top layer optical film is not contacted with the Ag layer.

Plastic light-folding element, imaging lens assembly module and electronic device

A camera module includes an imaging lens assembly module and an image sensor. The image sensor is disposed on an image surface of the imaging lens assembly module and includes a photoelectric converting layer, a micro lens arrays layer, a light filtering layer and an anti-reflecting layer. The photoelectric converting layer is for converting a light signal to an electric signal. The micro lens arrays layer is for converging an energy of the imaging light into the photoelectric converting layer. The light filtering layer is for absorbing a light at a certain wavelength region of the imaging light. The anti-reflecting layer is disposed on a surface of at least one of the light filtering layer and the micro lens arrays layer and includes an irregular nano-crystallite structure layer and an optical connecting layer. The optical connecting layer is connected to the irregular nano-crystallite structure layer.

Camera module, electronic device and vehicle instrument

An imaging lens assembly includes a first optical element and a low-reflection layer. The first optical element has a central opening, and includes a first surface, a second surface and a first outer diameter surface. The first outer diameter surface is connected to the first surface and the second surface. The low-reflection layer is located on at least one of the first surface and the second surface, and includes a carbon black layer, a nano-microstructure and a coating layer. The nano-microstructure is directly contacted with and connected to the carbon black layer, and the nano-microstructure is farther from the first optical element than the carbon black layer from the first optical element. The coating layer is directly contacted with and connected to the nano-microstructure, and the coating layer is farther from the first optical element than the nano-microstructure from the first optical element.

Imaging lens assembly, camera module and electronic device

An optical lens assembly is provided in the present disclosure. The optical lens assembly includes, from an object side to an image side, at least five optical lens elements. At least one of the optical lens elements includes an anti-reflective coating, and the optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer, and the coating layer at the outer of the anti-reflective coating is made of metal oxide. The anti-reflective coating includes a plurality of holes, and sizes of the holes adjacent to the outer of the anti-reflective coating are relatively larger than sizes of the holes adjacent to the inner of the anti-reflective coating.

Optical lens assembly, imaging apparatus and electronic device

An optical imaging lens assembly includes at least one optical lens element. The optical lens element includes an anti-reflective coating, and the anti-reflective coating is arranged on at least one surface of the optical lens element. The anti-reflective coating includes a high-low refractive coating and a gradient refractive coating, and the high-low refractive coating is arranged between the optical lens element and the gradient refractive coating. The high-low refractive coating includes at least one high refractive coating layer and at least one low refractive coating layer, which are stacked in alternations. The low refractive coating layer is in contact with the optical lens element. The gradient refractive coating includes a plurality of holes, and the holes away from the optical lens element are relatively larger than the holes close to the optical lens element.

Optical imaging lens assembly comprising a gradient refractive coating having a plurality of holes, imaging apparatus and electronic device

A miniature optical lens assembly, which has at least one optical element, includes the optical element. The optical element includes a low reflection layer disposed on at least one surface of the optical element. The low reflection layer includes a plurality of nanocrystalline grains, and the nanocrystalline grains are located on one surface of the low reflection layer. The optical element is at least one of a light blocking element, an annular spacer element and a barrel element.

Miniature optical lens assembly having optical element, imaging apparatus and electronic device

An optical lens assembly includes, from an object side to an image side, at least four optical lens elements. At least one of the at least four optical lens elements includes an anti-reflective coating. The at least one optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the at least one optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer. One of the at least one coating layer at the outer of the anti-reflective coating is made of ceramics. The anti-reflective coating includes a plurality of holes, and sizes of the plurality of holes adjacent to the outer of the anti-reflective coating are larger than sizes of the plurality of holes adjacent to the inner of the anti-reflective coating.

An imaging lens assembly has an optical axis and includes a plastic lens element set. The plastic lens element set includes two plastic lens elements and at least one anti-reflective layer. The two plastic lens elements, in order from an object side to an image side along the optical axis are a first plastic lens element and a second plastic lens element. The anti-reflective layer has a nanostructure and is disposed on at least one of an image-side surface of the first plastic lens element and an object-side surface of the second plastic lens element.

Imaging lens assembly and electronic device

A camera module includes an imaging lens assembly, an image sensor and an optical plate. The image sensor is disposed on an image surface of the imaging lens assembly. The optical plate is disposed between the imaging lens assembly and the image sensor, and includes a substrate and at least one anti-reflection layer. The substrate has an object-side surface and an image-side surface, the object-side surface faces towards an object side, the image-side surface faces towards an image side, and the object-side surface is parallel with the image-side surface. The at least one anti-reflection layer is disposed on the object-side surface or the image-side surface of the substrate, the anti-reflection layer includes a nanocrystal structure layer and an optical-connecting layer, wherein the nanocrystal structure layer includes a metal oxide crystal, the optical-connecting layer connects the substrate and the nanocrystal structure layer.

Camera module and electronic device

A miniature optical lens assembly, which has at least one of optical element, includes the optical element. The optical element includes a low reflection layer disposed on at least one surface of the optical element. The low reflection layer includes a plurality of nanocrystalline grains, and the nanocrystalline grains are located on one surface of the low reflection layer. The optical element is at least one of a light blocking element, an annular spacer element and a barrel element.

An infrared filter includes a transparent substrate, and an infrared-filtering multilayer film. The infrared-filtering multilayer film is coated on the transparent substrate, and the infrared-filtering multilayer film includes a plurality of the first kind of film layers, a plurality of the second kind of film layers, a plurality of the third kind of film layers and a plurality of the fourth kind of film layers, wherein the four kinds of film layers are arranged in order of gradient refractive indexes. At least two kinds of film layers are made of composite materials.

Growing community of inventors

Taichung, Taiwan

Kuo-Chiang Chu