Abstract: A double-sided aspheric diffractive multifocal lens and methods of manufacturing and design of such lenses in the field of ophthalmology. The lens can include an optic comprising an aspheric anterior surface and an aspheric posterior surface. On one of the two surfaces a plurality of concentric diffractive multifocal zones can be designed. The other surface can include a toric component. The double-sided aspheric surface design results in improvement of the modulation transfer function (MTF) of the lens-eye combination by aberration reduction and vision contrast enhancement as compared to one-sided aspheric lens. The surface having a plurality of concentric diffractive multifocal zones produces a near focus, an intermediate focus, and a distance focus.

Abstract: A double-sided aspheric diffractive multifocal lens and methods of manufacturing and design of such lenses in the field of ophthalmology. The lens can include an optic comprising an aspheric anterior surface and an aspheric posterior surface. On one of the two surfaces a plurality of concentric diffractive multifocal zones can be designed. The other surface can include a toric component. The double-sided aspheric surface design results in improvement of the modulation transfer function (MTF) of the lens-eye combination by aberration reduction and vision contrast enhancement as compared to one-sided aspheric lens. The surface having a plurality of concentric diffractive multifocal zones produces a near focus, an intermediate focus, and a distance focus.

Abstract: An image-capturing assembly is disclosed. The image-capturing assembly includes an array of lens units and an array of optical sensor units. At least one of the lens units includes a first functional lens and a first light-blocking member having an aperture. Each of the optical sensor units includes an image-capture element corresponding to one of the lens units. The first functional lens, the aperture of the first light-blocking member, and one of the image-capture element are arranged along an optical axis, and the aperture of the first light-blocking member is asymmetrical with respect to the optical axis.

Abstract: An image-capturing lens is disclosed in the disclosure. The image-capturing lens includes a central portion and a periphery portion. The central portion includes a plurality of optical elements arranged in a circular fashion, and each of the optical elements differs in thickness. The periphery portion extends peripherally from the central portion and has a constant thickness. The thickness of the periphery portion is smaller than a thickness of one of the plurality of optical elements that is approximate to the periphery portion.

Abstract: A lens array includes a plurality of micro-lens modules. Each of the micro-lens modules includes a first lens group and a second lens group. The first lens group and the second lens group are arranged sequentially from an object side to an image side along an optical axis. An effective focal length (EFL) of the first lens group is f1, an EFL of the second lens group is f2, and the micro-lens modules satisfy a following condition: ?0.2<f1/f2<0.5.

Abstract: A lens array includes a plurality of micro-lens modules. Each of the micro-lens modules includes a first lens group and a second lens group. The first lens group and the second lens group are arranged sequentially from an object side to an image side along an optical axis. An effective focal length (EFL) of the first lens group is f1, an EFL of the second lens group is f2, and the micro-lens modules satisfy a following condition: ?0.2<f1/f2<0.5.

Abstract: An image-capturing assembly is disclosed. The image-capturing assembly includes an array of lens units and an array of optical sensor units. At least one of the lens units includes a first functional lens and a first light-blocking member having an aperture. Each of the optical sensor units includes an image-capture element corresponding to one of the lens units. The first functional lens, the aperture of the first light-blocking member, and one of the image-capture element are arranged along an optical axis, and the aperture of the first light-blocking member is asymmetrical with respect to the optical axis.

Abstract: An image-capturing lens is disclosed in the disclosure. The image-capturing lens includes a central portion and a periphery portion. The central portion includes a plurality of optical elements arranged in a circular fashion, and each of the optical elements differs in thickness. The periphery portion extends peripherally from the central portion and has a constant thickness. The thickness of the periphery portion is smaller than a thickness of one of the plurality of optical elements that is approximate to the periphery portion.

Abstract: An imaging optical device includes a first lens group, which includes a first lens sub-group and a second lens sub-group that are physically connected without intermediate substance nor air existed therebetween and disposed in an order from an object side to an image side. The first lens sub-group has a positive refractive power, and the second lens sub-group has a negative refractive power.

Abstract: An imaging lens including a first lens group and a second lens group is provided. The first lens group is disposed between an object side and an image side. A surface closest to the object side in the first lens group is a first aspheric surface. A surface closest to the image side in the first lens group is a second aspheric surface. The second lens group is disposed between the first lens group and the image side. A surface closest to the first lens group in the second lens group is a third aspheric surface. A surface closest to the image side in the second lens group is a fourth aspheric surface. The imaging lens satisfies: ?8<f2/f<?4, where f is an effective focal length (EFL) of the imaging lens, and f2 is an EFL of the second lens group.

Abstract: A micro-lens module including a first lens group and a second lens group is provided. The first lens group disposed between an object side and an image side has a first aspheric surface which is the surface closest to the object side and a second aspheric surface which is the surface closest to the image side. The second lens group disposed between the first lens group and the image side has a third aspheric surface which is the surface closest to the first lens group and a fourth aspheric surface which is the surface closest to the image side. An overall length of the micro-lens module is L, an effective focal length (EFL) of the micro-lens module is f, and an EFL of the second lens group is f2. The micro-lens module satisfies following conditions: 1.5>L/f>0.6, and ?7>f2/f>?14.

Abstract: An imaging lens including a first lens group and a second lens group is provided. The first lens group is disposed between an object side and an image side. A surface closest to the object side in the first lens group is a first aspheric surface. A surface closest to the image side in the first lens group is a second aspheric surface. The second lens group is disposed between the first lens group and the image side. A surface closest to the first lens group in the second lens group is a third aspheric surface. A surface closest to the image side in the second lens group is a fourth aspheric surface. The imaging lens satisfies: ?8<f2/f<?4, where f is an effective focal length (EFL) of the imaging lens, and f2 is an EFL of the second lens group.

Abstract: A micro-lens module including a first lens group and a second lens group is provided. The first lens includes a first lens and a second lens arranged in sequence from the object side to the image side. The second lens is closest to the image side in the first lens group, and a surface of the second lens facing the image side is an aspheric surface. The second lens group includes a third lens and a fourth lens arranged in sequence from the object side to the image side. The first lens group is composed of a first complex lens. The first complex lens includes a plurality of lenses. The lenses are adhered to each other, and a refractive index of at least one lens in the lenses is different from refractive indexes of the other lenses.

Abstract: A lens module includes a first lens group and a second lens group. The first lens group includes a first substrate, a diaphragm, a first lens, and second lens. The diaphragm with a aperture is disposed on the first side of the first substrate. The first lens and the second lens are respectively disposed on the first side and the second side of the first substrate. The second lens group includes a second substrate, a third lens, and a fourth lens. The third lens and the fourth lens are respectively disposed on the first side and the second side of the second substrate. The lens module meets the following requirements: 1.5<F1/Ft<2; and 1.5<F2/Ft<2, in which Ft represents a effective total focal length of the lens module, F1 represents an effective focal length of the first lens group, and F2 represents an effective focal length of the second lens group.

Abstract: A micro-lens module including a first lens group and a second lens group is provided. The first lens group disposed between an object side and an image side has a first aspheric surface which is the surface closest to the object side and a second aspheric surface which is the surface closest to the image side. The second lens group disposed between the first lens group and the image side has a third aspheric surface which is the surface closest to the first lens group and a fourth aspheric surface which is the surface closest to the image side. An overall length of the micro-lens module is L, an effective focal length (EFL) of the micro-lens module is f, and an EFL of the second lens group is 12. The micro-lens module satisfies following conditions: 1.5>L/f>0.6, and ?7>f2/f>?14.

Abstract: A micro-lens module including a first lens, a second lens, and an aperture stop is provided. The first lens is disposed between an object side and an image side, wherein a first surface of the first lens facing the object side is an aspheric surface, and the curvature radius of the aspheric surface is R1. The second lens is disposed between the first lens and the image side, wherein a second surface of the second lens facing the image side is an aspheric surface, and the curvature radius of the aspheric surface is R2. The aperture stop is disposed between the first lens and the second lens, wherein the distance from the first surface to the aperture stop is d1, and the distance from the second surface to the aperture stop is d2. The micro-lens module satisfies 6>d2/d1>2.5 and ?2.5<R1/R2<1.5.

Abstract: A lens module includes a first lens group and a second lens group. The first lens group includes a first substrate, a diaphragm, a first lens, and second lens. The diaphragm with a aperture is disposed on the first side of the first substrate. The first lens and the second lens are respectively disposed on the first side and the second side of the first substrate. The second lens group includes a second substrate, a third lens, and a fourth lens. The third lens and the fourth lens are respectively disposed on the first side and the second side of the second substrate. The lens module meets the following requirements: 1.5<F1/Ft<2; and 1.5<F2/Ft<2, in which Ft represents a effective total focal length of the lens module, F1 represents an effective focal length of the first lens group, and F2 represents an effective focal length of the second lens group.

Abstract: A micro-lens module including a first lens group and a second lens group is provided. The first lens group is disposed between an object side and an image side, wherein a surface closest to the object side in the first lens group is a first aspheric surface, whose radius of curvature is r1. A surface closest to the image side in the first lens group is a second aspheric surface, whose radius of curvature is r2. The second lens group is disposed between the first lens group and the image side, wherein a surface closest to the first lens group in the second lens group is a third aspheric surface, whose radius of curvature thereof is r3. A surface closest to the image side in the second lens group is a fourth aspheric surface. The micro-lens module satisfies: 0.6>r1>0.4 mm, and 0.3<r1/r2<0.6.

Abstract: An image sensor module having a light gathering region and a light non-gathering region includes an image sensor, a light blocking spacer, a lens layer and a fixing shell. The light blocking spacer is disposed on the image sensor and located in the light non-gathering region. The light blocking spacer has a through hole exposing a portion of the image sensor in the light gathering region. The lens layer is disposed on the light blocking spacer and covers the through hole. The lens layer includes a transparent substrate and a lens disposed on the transparent substrate and located in the light gathering region. The fixing shell located in the light non-gathering region wraps the sidewalls of the image sensor, the light blocking spacer and the lens layer continuously. The material of the fixing shell includes a thermosetting material. A method for manufacturing the image sensor module is also provided.

Abstract: A micro-lens module including a first lens group and a second lens group is provided. The first lens includes a first lens and a second lens arranged in sequence from the object side to the image side. The second lens is closest to the image side in the first lens group, and a surface of the second lens facing the image side is an aspheric surface. The second lens group includes a third lens and a fourth lens arranged in sequence from the object side to the image side. The first lens group is composed of a first complex lens. The first complex lens includes a plurality of lenses. The lenses are adhered to each other, and a refractive index of at least one lens in the lenses is different from refractive indexes of the other lenses.