35results about How to "Increased focus range" patented technology

There is provided a positive type resist composition formed by dissolving (A) a resin component with a unit derived from a (meth)acrylate ester in the principal chain, for which the solubility in alkali increases under the action of acid, and (B) an acid generator component which generates acid on exposure, in an organic solvent component (C), wherein the resin component (A) is a copolymer comprising (a1) a unit derived from a (meth)acrylate ester comprising an acid dissociable, dissolution inhibiting group containing a polycyclic group, (a2) a unit derived from a (meth)acrylate ester comprising a lactone containing monocyclic group or polycyclic group, (a3) a unit derived from a (meth)acrylate ester comprising a hydroxyl group containing polycyclic group, and (a4) a unit derived from a (meth)acrylate ester comprising a polycyclic group which is different from the unit (a1), the unit (a2) and the unit (a3). This composition provides a chemically amplified positive type resist composition which displays excellent resolution, enables the depth of focus range of an isolated resist pattern to be improved, and enables the proximity effect to be suppressed.

A software program for evaluating and enhancing at least one user cognitive skill, the program including an animation module for displaying at least one first display that includes at least one first object having a first cognitively recognizable changing property of movement and at least one second cognitively recognizable changing property, a response module that receives input from a user signaling device that signals user recognition of the changing, an evaluation module that evaluates the user response based upon at least one evaluation parameter, and an evaluation appraisal module that generates an evaluation display based upon the evaluation.

A concave-convex surface inspection apparatus includes a slit light source unit emitting a slit light to a concave-convex surface of an object to be inspected, an image-taking unit taking an image of the concave-convex surface illuminated by the emitted slit light with an imaging optical axis intersecting with an optical axis of the slit light with a narrow-angle equal to or narrower than 30 degrees, and an evaluation section obtaining a three dimensional shape of the concave-convex surface and evaluating the obtained three dimensional shape, wherein the slit light source unit includes a slit light source and a cylindrical lens, the image-taking unit includes a telecentric lens unit, an image-taking section having an imaging surface tilted relative to the imaging optical axis for increasing a focusing range of the concave-convex surface, and a P polarizer.

The invention discloses a high precision lens center deviation detection instrument and a measurement method thereof. The high precision lens center deviation detection device comprises an LED irradiation source emission system, a microscope system and a detected glass bearing which are arranged on a pedestal; the LED irradiation source emission system and the detected glass bearing are in a same plane; the microscope system is arranged above the detected glass bearing; light rays emitted by a light source in a signal emission system is turned by a reflection prism and goes to detected glass after going through a cross wire and being focused by a light condensation lens, and then the light rays are imagined on a cross reticle after amplification by a microscope system and then are imagined on a CCD through an electronic ocular lens and displayed on a monitor. The high precision lens center deviation detection device and a measurement method thereof can realize measurement on center deviations of lenses with an extremely big focal length or an extremely small focal length and avoids a fact that reading is affected because the cross wire is too thick while the sensitivity is not changed. According to displacement of the cross wire after the lens is rotated for one round, the measurement on the center deviation is realized.

A lens having an extended range of focus is made of a transparent material and has two optical surfaces. The lens defines an optical axis and a focal power distribution (F_tot) which, in relation to a plane perpendicular to the optical axis, changes as a function of the radial height (r) and of the azimuth angle (phi) of the aperture between a calculated basic value of the focal power (F_lens) not equal to zero and a maximum value F_{spiral max} (r, phi).

The invention relates to the technical field of electronic equipment, and provides a lens assembly, a camera module and electronic equipment, the lens assembly comprises a lens seat, a first lens, a liquid lens and an extrusion structure, and the first lens is arranged on the lens seat and can move along the optical axis of the lens assembly; the liquid lens is arranged on the lens seat; the extrusion structure is arranged on the lens base and used for extruding the liquid lens. According to the lens assembly, focusing of the camera module can be achieved by moving the first lens and extrudingthe liquid lens, and the miniaturization design of the camera module can be met.

The invention discloses a processing method and apparatus for macro photography, and a terminal device. The method comprises: a focusing request is obtained; whether a motor stroke reaches a limiting position is determined; if so, a camera module group is controlled by a micro electro mechanical system to move so as to carry out focusing. With the method, the camera module group is controlled by the micro electro mechanical system to move so as to carry out focusing, so that the focusing range is extended and flexibility of macro photography is improved.

This invention is a linear illuminate which can increase the distinct range of its focus. It contains a guidance-light rod covered on it and a reflect-light cover tube. The light can be shoot from the rod's top; the face of the top has reflection function too. Any face of the whole rod has the reflection function. At the face of the shooting light the top has saw tooth which can advance gradually used to adjust index of reflection and refraction of the out light. The cover can mainly improve the reflection of the light and increase the brightness of the light. On the other side of the outlet of the rod, be designed a reflective plate coordinate with the design of gradually saw tooth reflective face, not only increase the brightness of the light and smoothly but also, maketto rod's light have wider range of its focus.

The embodiment of the invention provides an image acquisition method and image acquisition equipment. The image acquisition method is applied to the image acquisition equipment comprising a first chip, zoom lenses, image sensors, zoom motors and focusing motors. The number of the first chip is one. According to the image acquisition equipment with the two zoom lenses, the two zoom lenses have different zoom ranges, and an overlapped focal length range exists between the zoom ranges of the two lenses, and the two zoom lenses comprise a first short zoom lens and a second long zoom lens; the number of the image sensors is two, and the two image sensors correspond to the two zoom lenses respectively, and the two image sensors are in communication connection with the first chip; and the numberof the zooming motors is two, and the number of the focusing motors is two, and the two zooming motors and the two focusing motors are in communication connection with the first chip. Through superposition of zoom ranges of the two zoom lenses, the focal length range of the image acquisition equipment is expanded on the premise of not increasing the volume of a single lens.

A focus extending optical system has optical lenses and a focus extender. The optical lenses form an image of light, from an object, on an image sensor. The focus extender adjusts a wavefront so as to change a position of the image, formed by the optical lenses, in accordance with a distance from an optical axis and thereby extends a focus range. The focus extending optical system satisfies a condition that a value of a second MTF is less than or equal to three times a value of a first MTF. The first MTF is an MTF at a spatial frequency of ½ of a Nyquist frequency of the image sensor. The second MTF is an MTF at a spatial frequency of ¼ of the Nyquist frequency.

An optical carriage structure of the inspection apparatus and its inspection method are disclosed herein. A plurality of CCD arrays configured at different heights in the optical carriage are utilized, so as a plurality of individual images can be simultaneously captured in one scanning step to obtain a preferred inspection image for image comparison; therefore, precise inspection can be effectively achieved. Furthermore, those CCD arrays are configured at different heights and have enlarged focusing ranges, and the depth of field is thus enhanced.

The invention relates to the technical field of imaging systems, in particular to an automatic focusing method and system based on flight time, and the method comprises the following steps: measuringan object distance u between a laser ranging module and a target object, and transmitting object distance data to an image acquisition card; enabling the image acquisition card to estimate an initialfocal length f of the lens through interpolation operation by taking an object distance u as a setting basis; enabling the image acquisition card to set a focusing search range and a focusing motor motion step number according to a focal length f, obtain a plurality of images in the focusing search range, compare the obtained images to obtain a maximum characteristic value, and record an adjustment value of the focusing motor when the maximum characteristic value is obtained; and adding the adjustment value and the initial focal length to obtain the focusing focal length of the lens. The method and the system have the beneficial effects that the focusing precision and stability of the lens under the condition of image movement or insufficient light are improved, the focusing range of the lens is expanded, and the lens is suitable for ultra-long-distance focusing.

The present invention relates to a phase controlled focusing device. It includes transmitter, said transmitter includes at least 10 vibration elements, every vibration element includes base, piezoelectric ceramic piece, frequency source, power device, power supply, phase shifter and frequency divider. The piezoelectric ceramic piece and frequency source are fixed on the base, said base is fixed on the transmitter, the power supply is respectively connected with the input ends of phase shifter and frequency divider, the output ends of phase shifter and frequency divider are respectively connected with input end of power device, the output end of said power device is connected with the frequency source. Besides, said invention also provides its working principle and its extensive application field.