231 results about "Small lens" patented technology

An optical delivery waveguide for a material laser processing system includes a small lens at an output end of the delivery waveguide, transforming laser beam divergence inside the waveguide into a spot size after the lens. By varying the input convergence angle and / or launch angle of the laser beam launched into the waveguide, the output spot size can be continuously varied, thus enabling a continuous and real-time laser spot size adjustment on the workpiece, without having to replace the delivery waveguide or a process head. A divergence of the laser beam can also be adjusted dynamically and in concert with the spot size.

An optical delivery waveguide for a material laser processing system includes a small lens at an output end of the delivery waveguide, transforming laser beam divergence inside the waveguide into a spot size after the lens. By varying the input convergence angle and / or launch angle of the laser beam launched into the waveguide, the output spot size can be continuously varied, thus enabling a continuous and real-time laser spot size adjustment on the workpiece, without having to replace the delivery waveguide or a process head. A divergence of the laser beam can also be adjusted dynamically and in concert with the spot size.

A lens assembly has a driving actuator which includes a magnet, a yoke and a coil and is formed along a lens barrel that accommodates a lens unit for focusing and an auto-focus controlling apparatus comprises the lens assembly for camera module. The magnet or the coil has an internal diameter smaller than a maximal diameter of the lens barrel. Therefore, it is possible to manufacture much smaller lens assembly according to the present invention compared to the conventional ones and to reduce the possibility of component damages in the lens assembly in operating the camera module.

An improved image sensor wherein a first micro-lens array comprised of one pr more micro-lenses is positioned over a cavity such that incoming light is focused on the photo sensors of the image sensor. The first micro-lens array may collimate and focus incoming light onto the photo sensors of the image sensor, or may collimate incoming light and direct it to a second micro-lens array which then focuses the light onto the photo sensors. A method of fabricating the improved image sensor id also provided wherein the cavity and first micro-lens array are formed by use of a sacrificial material.

Provided is an imaging device (1) having: a front optical system (10) that transmits light from an object; a spectral filter array (20) that transmits light from the front optical system (10) via a plurality of spectral filters; a small lens array (30) that transmits the light from the plurality of spectral filters via a plurality of small lenses respectively, and forms a plurality of object images; a picture element (50) that captures the plurality of object images respectively; and an image processor (60) that determines two-dimensional spectral information on the object images based on image signals output from the picture element (50). The front optical system (10) is configured to transmit the light from the focused object to collimate the light into a parallel luminous flux.

In one aspect, a method includes providing a lens substrate having an array of lenses. The lens substrate includes an overflow region next to each lens of the array. Each overflow region includes an overflow lens material. The method also includes separating the lens substrate into a plurality of smaller lens substrates. Each of the smaller lens substrates has one of the single lens and the plurality of stacked lenses. Separating the lens substrate into the smaller lens substrates may include removing or substantially removing the overflow regions. In one aspect, the method may be performed as a method of making a miniature camera module. Other methods are also described, as are miniature camera modules.

An apparatus and method for out-focusing photography in a portable terminal is disclosed, including detecting a position of each pixel corresponding to a light area from an original image, generating a blurred image by blurring the original image, mapping a preset texture in correspondence with the detected positions of the pixels in the blurred image, and outputting a result image by mixing the image in which the texture is mapped and the original image, a user can perform out-focusing photography by using a portable terminal having a small lens iris.

Provided is a compact lens module which enables zoom and auto-focus functions even in a small lens module by providing a lens carrying structure using a supersonic driving unit. A lens unit is positioned in a case and has at least one lens. A carrying member is rotatably connected in the case and connected to the lens unit so that the lens unit may move forward and backward. In addition, a driving unit is mounted in the case for transferring a driving force to the carrying member so as to move the lens unit by repeatedly contacting and non-contacting with the carrying member.

A bifocal plastic lens having a bench lens and a small lens with different refractive powers. The small lens not protruding above a surface of the bench lens, a boundary between the constituent lenses being difficult to see. The small lens may be provided on a preparatory lens member including the small lens. Alternatively, the preparatory lens member has a concave portion for a small lens molding surface. A resin having a higher refractive index than a resin constituting other portions of the lens is adhered to a surface provided with the small lens or the concave portion to be the small lens molding surface in the preparatory lens member, and is cured and integrated.

A light source device includes a light source array including at least one light emitting part, a collimating optical system that receives a light beam bundle emitted from the light source array, a first lens array including a plurality of first small lenses that receives the light beam bundle having passed through the collimating optical system, and a second lens array that is disposed in a subsequent stage of the first lens array and includes a plurality of second small lenses corresponding respectively to the first small lenses. The planar shape of the light emission area of the light emitting part has a short-side direction and a longitudinal direction. The planar shape of the second small lens has a longitudinal direction. The short-side direction of the light emission area crosses the longitudinal direction of the second small lens.

The present invention discloses a camera module group lens, a camera module group, an assembly method of a camera module group lens and an assembly method of a camera module group. The camera module group lens comprises at least one internal optics lens, at least one external optics lens and a lens-barrel part. Each internal optics lens is arranged in the space of the lens-barrel part according to a predetermined order, each external optics lens is arranged out of the lens-barrel part in the height direction of the lens-barrel part, and each internal optics lens and each external optics lens are both located on the optical path of the camera module group lens. The design mode is configured to shorten the assembly tolerance chain of a lens and reduce the distance from the lens to a chip, so that the back focal length of a small lens may be realized and the higher imaging quality may be ensured.

The invention discloses a small lens and an under-screen optical assembly. The small lens comprises a mirror tube and a plurality of optical lenses arranged in the mirror tube in the optical axis direction, and the multiple optical lenses comprise light inlet lenses located at the light inlet end of the mirror tube; each light inlet lens comprises a fixed part and a bulged part which are connectedin the optical axis direction, and the fixed parts are mounted in the mirror tube; and the bulged parts are higher than the end face of the light inlet end of the mirror tube, and the diameter of thebulged parts is less than the outer diameter of the light inlet end of the mirror tube. The small lens can further increase the screen-to-body ratio of the under-screen optical assembly.

A bifocal plastic lens having a bench lens and a small lens with different refractive powers. The small lens not protruding above a surface of the bench lens, a boundary between the constituent lenses being difficult to see. The small lens may be provided on a preparatory lens member including the small lens. Alternatively, the preparatory lens member has a concave portion for a small lens molding surface. A resin having a higher refractive index than a resin constituting other portions of the lens is adhered to a surface provided with the small lens or the concave portion to be the small lens molding surface in the preparatory lens member, and is cured and integrated.

Provided is a compact lens module which enables zoom and auto-focus functions even in a small lens module by providing a lens carrying structure using a supersonic driving unit. A lens unit is positioned in a case and has at least one lens. A carrying member is rotatably connected in the case and connected to the lens unit so that the lens unit may move forward and backward. In addition, a driving unit is mounted in the case for transferring a driving force to the carrying member so as to move the lens unit by repeatedly contacting and non-contacting with the carrying member.

A lens driving device includes: a stator having a cylindrical shape, for generating a magnetic field within the cylindrical shape; a rotor located within the cylindrical shape of the stator and being rotation-driven for the stator by a magnetic field created by the stator; a lens holder located further inside the rotor, for holding a plurality of lenses with a small lens thereof being located at an arrangement end of the plurality of lenses; a converting mechanism for converting the direction of force by rotation driving of the rotor into direction along the optical axes of the lenses and transmitting the force in the direction thus converted to the lens holder; and a rotation stopper mechanism formed beside the small lens, for preventing the rotation of the lens holder through physical contact.

A lens driving device provided with a stator having a cylindrical shape, for generating a magnetic field therein; a rotor located within the stator and being rotation-driven by a magnetic field created by the stator; a lens holder located further inside the rotor, for holding a plurality of lenses with a small lens thereof being located at an arrangement end of the plurality of lenses; a converting mechanism for converting the direction of force of rotation driving of the rotor into direction along the optical axes of the lenses and transmitting the force in the direction thus converted to the lens holder; and a rotation stopper mechanism formed beside the small lens, for preventing the rotation of the lens holder.

To provide a compact, high-performance zoom lens having a small lens aperture for enlarging an image from a light bulb such as a DMD for forming an image by changing a reflecting direction of light and projecting the image so enlarged on to a screen or the like, and the zoom lens includes, in order from a magnifying side, a first lens group having a negative refractive power as a whole and a second lens group having a positive refractive power as a whole, wherein changing the magnification of a whole lens system thereof is attained by configuring such that while a magnification varying operation is in effect, the first lens group and the second lens group are made to move on the optical axis.

A turbulence-free CCD camera system with nonclassical imaging resolution, for applications in long- distance imaging, such as satellite and aircraft-to-ground based distant imaging, utilizing an intensity- fluctuation correlation measurement of thermal light. The proposed camera system has the following advantages over classic imaging technology: (1) it is turbulence-free; (2) its spatial resolution is mainly determined by the angular diameter of the light source. For example, using sun as the light source, this camera may achieve a spatial resolution of 200 micrometer for any object on Earth. 200-micrometer resolution is insignificant for short distance imaging, however, taking a picture of a target at 10-kilometer, a classic camera must have a lens of 90-meter diameter in order to achieve 200-micrometer resolution. Unlike a classic camera, the proposed turbulence-free CCD camera system has adequate spatial resolution zoom a long distance and still distinguish the objects within a small area, even with a small lens.

In a compact wide-angle zoom lens having a two-group configuration composed of positive and negative lens groups, the first lens group is composed of G1A and G1B groups, while a stop is disposed between the G1A and G1B groups, thereby yielding a small lens thickness at its telephoto end and making it compact. The first lens group G1 is composed of G1A group comprising, successively from the object side, a negative lens having a meniscus form with a concave surface directed onto the object side and a positive lens having a meniscus form with a convex surface directed onto the object side, and G1B group having at least one biconvex lens. A shutter (stop) is disposed between the G1A and G1B groups, thereby allowing the first and second lens groups to be disposed close to each other at the telephoto end. Further, the zoom lens is set so as to satisfy the following conditional expressions: wherein: f'w is the rear-side focal length of the whole lens system at the wide-angle end; f'gla is the focal length of the G1A group; Dab is the air space between the G1A group and the G1B group.

Provided is an imaging device (1) having: a front optical system (10) that transmits light from an object; a spectral filter array (20) that transmits light from the front optical system (10) via a plurality of spectral filters; a small lens array (30) that transmits the light from the plurality of spectral filters via a plurality of small lenses respectively, and forms a plurality of object images; a picture element (50) that captures the plurality of object images respectively; and an image processor (60) that determines two-dimensional spectral information on the object images based on image signals output from the picture element (50). The front optical system (10) is configured to transmit the light from the focused object to collimate the light into a parallel luminous flux.

The invention discloses a method for bundling the parallel light to parallel light or focusing light, and a device for gaining high energy and high beam current, which belongs to the technical field of optics, especially the field of solar application. The method is to realize direct bundling from the parallel light to parallel light or focusing light by the direct bundling function of the reflective panel combination of double positive cones which are appropriately fixed and form a direct bundling (parallel light or focusing light) device of the parallel light with the sunshine tracking system and output transmission directional system controlled by plane mirror, which is used for heating, food and beverage, disinfection, etc. A re-bundling system is formed by the appropriate combination of the bundling method provided in the invention and other bundling methods (parabolic mirror and lens, large lens and small lens, large and small parabolic mirror, etc.) to gain a high energy and high beam current device used for welding, cutting and blinding by scanning or functioned as other military attack, etc. Simultaneously inject a plurality of parallel light directly bundling devices into a fixed (without tracking system) parallel light directly bundling device from parallel light, and gain the high energy by rebuilding used for metallurgy and power generation, etc. In the same way, simultaneously inject a plurality of laser beam into a fixed (without tracking system) parallel light or focusing light directly bundling device from parallel light to gain high-energy laser beam by rebuilding used for industry or national defense.

The invention discloses a method for flexibly making a curved-surface bionic compound eye structure. The method comprises the following steps that a substrate is coated with three layers of positive photoresist in a spinning mode, wherein AZ4620 photoresist is adopted on the bottom layer and the top layer, and S1813 photoresist is adopted in the middle layer; two times of mask-free exposure is carried out, wherein the three layers of photoresist is completely and thoroughly exposed at the first time, and only the photoresist on the middle layer and the top layer is thoroughly exposed at the second time; development is carried out to obtain a primary multi-level structure; two times of hot reflux technology treatment is consecutively carried out, wherein common hot reflux is carried out at the first time to obtain a hot reflux large lens structure, and inverse non-contact type hot reflux is carried out at the second time to obtain a small lens array structure distributed on a compound eye large lens. The method has the advantages of being simple in technological operation, short in processing cycle, low in cost, capable of controlling the shape and the like, and the requirement for large view field imaging can be well met.

A cup attaching apparatus for attaching a cup as a processing jig to an eyeglass lens including an illumination optical system including an illumination light source arranged to illuminate a side of the front surface of the lens by light from the light source; an imaging optical system including an imaging device and a retroreflection member placed on an opposite side from the light source with respect to the lens; an image processing device adapted to process an image signal from the imaging device to detect at least one of a mark point provided on a unifocal lens, a small lens portion of a bifocal lens, and a progressive mark provided on a progressive focal lens and obtain a position of the detected one; and an arithmetic control device adapted to determine an attaching position of the cup based on the position obtained by the image processing device.

To provide a compact, high-performance zoom lens having a small lens aperture for enlarging an image from a light bulb such as a DMD for forming an image by changing a reflecting direction of light and projecting the image so enlarged on to a screen or the like, and the zoom lens includes, in order from a magnifying side, a first lens group having a positive or negative refractive power as a whole, a second lens group having a negative refractive power as a whole and a third lens group having a positive refractive power as a whole, wherein changing the magnification of a whole lens system thereof is attained by configuring such that while a magnification varying operation is in effect, the first lens group is left fixed, the second lens group and the third lens group are made to move on the optical axis.

The invention discloses a small lens detecting device and a detecting method thereof. The device comprises a light source system, an object lens group and an image receiving device which are sequentially arranged; a to-be-detected lens is located between the light source system and the object lens group; the light source system, the to-be-detected lens, the object lens group and the image receiving device are located on the same mechanical central shaft; the light source system comprises a point light source, a dividing plate and a collimation lens which are sequentially arranged; the point light source is located on the focal distance position of the collimation lens; the dividing plate is arranged close to the point light source; the object lens group comprises a first part and a secondpart; the object lens group is fixed opposite to the image receiving device at interval, and the object lens group and the image receiving device can be moved upwards together in the direction of themechanical shaft. The method comprises the steps of effective focal distance measurement, and / or flange focal distance measurement, and / or eccentric error measurement. The device and the method has the advantages of simple measuring principle, simple structure, low cost, high operating speed and high measuring precision.

The invention discloses a wide-angle and high-resolution small optics lens. The wide-angle and high-resolution small optics lens comprises a first lens of a negative meniscus lens, a second lens of the negative meniscus lens, a third lens of a biconvex positive lens, a diaphragm, a bonding lens set and a sixth lens of the biconvex positive lens in sequence from the object side to the image side, wherein the bonding lens set is composed of a fourth lens and a fifth lens. The wide-angle and high-resolution small optics lens composed of the lenses not only is small in size, but also can correct the system aberration effectively and reduce the sensitivity degree of a lens system so as to obtain the higher resolution power, then the resolution of a lens is larger than the pixel of two millions, the wide-angle and high-resolution small optics lens can be well used on a chip of the pixel of 5 millions, the image definition and uniformity of the surrounding image quality are improved, the defect that a traditional lens is low in performance index is overcome, and the wide angle and the high resolution are achieved.

The invention relates to a portable mini projector and discloses an optical engine for a mini projector using a laser light source. In the optical engine, a plurality of small lens bodies which are suitable for the laser and have the diameter of 80 to 500 mu m are used on a beam shaper, so that beams are shaped more easily. The plurality of small lens bodies with different dimensions are combinedon the beam shaper, so that laser speckles are reduced. The shape of the small lens bodies is consistent with that of an effective area of an optical modulator preferably. The dimensions of the smalllens bodies are randomly distributed preferably, and the arrangement mode is irregular preferably. A diffuser is arranged at the front end of the beam shaper.