287 results about "Lens effect" patented technology

A showerhead as described herein includes a translucent hollow body having a fluid chamber, and a fluid distribution element configured to release fluid contained in the fluid chamber. The fluid distribution element includes a plurality of raised concentric rings having peaks that serve as the fluid release points. The fluid distribution element contains a number of fluid ducts that are specifically shaped to transport the fluid from the fluid chamber toward the fluid release points. The translucent nature of the showerhead creates an optical lens effect that illuminates the showerhead and the water droplets formed by the showerhead. The illumination of the water droplets creates a pleasant showering experience for the user.

A stereoscopic display includes: a display panel configured to display an image in either one of two or more arrangement states including a first arrangement state and a second arrangement state which are switchable with each other; and a lens array device arranged to face a display surface of the display panel. The lens array device produces a lens effect in a direction, the direction of effect being changed between in the first arrangement state and in the second arrangement state. The display panel includes an array of a plurality of sub-pixels, and a combination of sub-pixels used as a unit pixel is changed between in the first arrangement state and in the second arrangement state.

An optical microscope is provided with an adjustable optical phase ring. The adjustable ring provides a way to compensate for distortion in the visible phase ring before the light reaches the sample. In an inverted microscope, when observing transparent cells under a liquid, the visible light phase ring is distorted. By the use of a Liquid Crystal Display (LCD) in place of a fixed ring, the projected ring is adjusted to realign the light and produce phase. In a typical micro plate, the meniscus formed produces a lens effect that is realigned by providing changes in the position and pattern, to allow phase imaging over a wider portion of the well. The realignment of the ring can be manual or automated and can be dynamically adjusted based upon an observed image of the sample.

Mediums that are arranged opposite to an elemental-image display unit, that form two lens arrays having different principal planes together with substrates, and that switches a polarization direction of incident light corresponding to applied voltage, thereby making lens effect of either one of the lens arrays effective are included. By controlling the polarization direction synchronizing with a display timing of images to be displayed on the elemental-image display unit, the lens array to be effective is switched at each display timing, and images having different near or far direction are alternately displayed on the elemental-image display unit.

The present invention aims at: emitting a uniform light on the whole with a high luminance to provide a required bright illumination; suppressing increase of temperature and reducing power consumption; and permitting easy alteration of entire shape and size thereof.

A light emission device 10 is provided, which comprises: a transparent element 30 of columnar shape having a substantially circular shape in section; a light cover 12 attached on outer surface of the transparent element 30 so as to securely sandwich and retain that particular outer surface of transparent element; and a plurality of LEDs 22 for applying lights to the transparent element 30, the plurality of LEDs 22 being provided in the light cover 12. Such LEDs 22 are disposed relative to said transparent element 30, such that a predetermined space I is essentially given between the LEDs 22 and the surface of the transparent element 30. Upon lights being emitted from the LEDs 22, the lights expands freely in an air zone between the LEDs 22 and the transparent element 30 and are therefore applied to that particular transparent element 30 from many angles. Then, the lights are refracted and diffused due to a lens effect of the transparent element 30, and emitted from an opening area 14 of the light cover 12 to the outside. When such light emission is viewed from the outside, it is observed that a whole of the transparent element 30 is illuminated uniformly with a high luminance.

A system for correcting an optical center is provided with: a lens control unit for shifting a lens in vertical and horizontal directions; an offset detection unit for detecting a displacement of the optical center with respect to a screen on a basis of a magnitude of a shift of the lens effected by the lens control unit; a memory unit for storing in advance data on the centrally aligned location of the lens and also data on the positions of the optical center effected by lens shifts; and a correction unit for linking the displacement of the optical center detected by the offset detection unit with the data on the centrally aligned location of the lens and the data on the position of the optical center effected by the lens shift stored in the memory unit to correct the displacement of the optical center.

An embodiment of the invention provides a method capable of switching between different display modes and a display device, and particularly provides a method capable of switching between 2D (two-dimensional) display, 3D (three-dimensional) display and double-vision display and a display device. The display device comprises a display panel, a slit grating device positioned on a light-emitting side of the display panel and a liquid crystal lens on a light-emitting side of the slit grating device. The slit grating device is capable of enabling the display device to form a 3D effect. The liquid crystal lens equivalently forms a concave lens effect when double-vision display is performed by the display device so as to diffuse a first image and a second image sent by the display panel to a first visual area and a second visual area respectively, and the liquid crystal lens equivalently forms a plane light-transmitting effect when 3D display is performed by the display device so as to transmit a left eye image and a right eye image sent by the display panel.

The present invention relates to a light emitting device and a light emitting object using the light emitting device. The entire part of the light emitting device can emit light uniformly with sufficient brightness according to the purpose of use, in which a rise in temperature is suppressed and electric power consumption is reduced, and that can easily cope with a change in the entire shape and size. The light emitting device (10) is constructed from a bar-like transparent body (30) having a substantially circular cross-section, a light cover (12) installed on the outer periphery of the transparent body (30) and holding the outer periphery of the transparent body (30), and LEDs (22) arranged in the light cover (12) and introducing light into the transparent body (30). The LEDs (22) are disposed so as to keep a predetermined distance (I) from the surface of the transparent body (30). When the LEDs (22) emit light, the light enters into the transparent body (30) from many directions because of an airspace between the LEDs (22) and the transparent body (30), refracted and diffused by a lens effect of the transparent body (30), and emitted to the outside from an opening (14) of the light cover (12). When seen from the outside, the entire transparent body (30) emits light uniformly and brightly.

The invention discloses a virtual simulation method and system of a camera motion control system in film shooting, and belongs to the technical field of camera control. The method and the system cause a film creator to more visually regulate the motion track and the picture sequence of the camera according to own operation habits and visual angles, picture planning and the like in the early stage of film shooting, utilizes three-dimensional virtual simulation to design a satisfactory lens effect for the creator, automatically calculates the parameters of the camera motion control system which plans to be adopted, and precisely controls the space coordinates of the camera lens so as to improve the interaction of the camera motion control system, save the shooting cost of the lens which uses the camera motion control system and greatly improve the digital manufacture quality and efficiency of the film.

A phase plate (10) for phase-contrast electron microscopes is characterized by comprising a conductive core phase plate (14) which has a phase plate body (11) and a phase plate support (12) supporting it and is arranged in the path of electrons having passed through the objective lens of an electron microscope and in which the phase plate body (11) is so supported on the phase plate support (12) having an opening (13) as to cover at least a part of the opening (13) and a conductive shield thin film (15) covering the periphery of the core phase plate (14) including the upper and lower sides thereof. Consequently, a phase plane for phase-contrast electron microscopes preventing the lens effect incident to charging completely and applicable to the field of material science, its manufacturing method and a phase-contrast electron microscope can be provided.

In a liquid crystal display device enabling three-dimensional display using a liquid crystal lens, both mechanical strength and a liquid crystal lens effect are satisfied. The liquid crystal lens is bonded onto an upper polarizing plate of a liquid crystal display panel with a bonding material. The liquid crystal lens includes an upper substrate, a lower substrate and a liquid crystal layer sandwiched therebetween. The upper substrate of liquid crystal lens has a thickness larger than a total of the thickness of the lower substrate of the liquid crystal lens and the thickness of the liquid crystal display panel. Thereby, it is possible to realize a liquid crystal display device satisfying both the mechanical strength and liquid crystal lens effect.

The present invention provides an optical element array that enables lens mounting at low cost and high precision, a display device enabling stereoscopic display using the optical element array, and a method of manufacturing the display device. A lens sheet of the present invention is configured by a plurality of unit lenses and a non-periodic flat part, the non-periodic flat part functioning as a lens reference mark for positioning. A display device is configured using the lens sheet such that the non-periodic flat part of the lens sheet overlaps a positioning mark of a display panel. Since the non-periodic flat part serving as the lens reference mark is arranged on the positioning mark, observation shift of the positioning mark due to lens effect in time of alignment does not occur, and high precision alignment is realized.

This invention relates to a thermal lens reflective film absorption measurement method and its device, which are based on thermal lens film absorption measurement method and surface thermal lens film absorption to simultaneously measure the detecting laser center light intensity signals I#-[R] and I#-[T] reflected and transmitted in the light thermal lens effect. It is to make the light intensity received by two photoelectricity detectors equal by adjusting the amplifying times of the photoelectricity detector or fixing attenuator in the reflection and transmission light paths. In this way it gets the thermal lens reflection and transmission signals S#-[RT]ú¢(I#-[R]-I#-[T])/I#-[0] which is at a proportion with the film absorption rate in a large range.

It is an object to enable easily adjusting a focus position for coping with thermal lens effects. There is provided a laser-light scanning portion including a Z-axis scanner capable of adjusting the focus position of laser light in the direction of the optical axis, an X-axis scanner and a Y-axis scanner. Further, there are provided a laser driving control portion for controlling a laser oscillation portion and the laser-light scanning portion, a processing-condition setting portion for setting a laser-light outputting condition and a processing pattern as processing conditions for processing in a desired processing pattern, and an amount-of-correction identification section for identifying, as an amount of focus-position correction, the deviation of the focus position in the direction of the optical axis which is caused by thermal lens effects induced based on the laser-light outputting condition set by the processing-condition setting portion. During irradiation of the laser light, the laser driving control portion scans the laser light, in such a way as to add the amount of focus-position correction identified by the amount-of-correction identification section to the processing condition set by the processing-condition setting portion.

The invention provides a 2D/3D (two-dimensional/three-dimensional) switching type stereoscopic display and a control method thereof. The 2D/3D switching type stereoscopic display comprises a display panel, a polarization rotator and a lens component, wherein the display panel is used for providing an image with polarization direction; the polarization rotator is used for rotating the polarization direction of the image so as to lead the 2D/3D switching type stereoscopic display to be switched between a 2D display state and a 3D display state; the lens component is provided with a first direction and a second direction which are mutually vertical; and in theory, the lens component generates a non-lens effect for the images with the polarization directions positioned in the first direction, and generates a lens effect for the images with the polarization directions positioned in the second direction. The polarization rotator is configured to lead the polarization direction and the first direction or the second direction to form an included angle less than 45 degrees. By adopting the method, the mismatch of refractive index of the lens component in the 2D display state or the distance mismatch between the display panel and the lens component in the 3D display state can be effectively compensated, so that the display effect can be improved.

The invention relates to a method for regulating and controlling a crystalline silicon surface corrugated structure based on a plasmoid lens effect and belongs to the technical field of femtosecond laser application. According to the method, a metal nano-ring structure is processed on based silicon plated with a noble metal film in advance by fundamental frequency femtosecond laser pulse after single frequency multiplication is adopted, a second beam of single traditional fundamental frequency gauss femtosecond laser pulse acts on the nano-ring structure, and processing of a base crystalline silicon surface ring-shaped concentric corrugated structure is realized under the action of the plasmoid lens effect of a noble metal nano-structure. When linear polarization femtosecond laser pulse isadopted, the processed corrugated structure is distributed in a semi-ring shape and a corrugated symmetrical shaft is perpendicular to the laser polarization direction; when circular polarization femtosecond laser pulse is adopted, the processed corrugated structure is in a ring distribution shape in a centrosymmetric way. According to the method, efficient and accurate control of the surface periodical micro-nano structure form is realized, and crucial application value in the aspects of surface wettability and image storage is achieved.

The invention discloses a stereo display device and a liquid crystal lens thereof. The liquid crystal lens comprises a first substrate, a second substrate, a liquid crystal layer, a first electrode layer and a second electrode layer, wherein the first substrate and the second substrate are arranged at a certain interval; the liquid crystal layer is arranged between the first substrate and the second substrate; the first electrode layer is arranged between the first substrate and the liquid crystal layer; and the second electrode layer is arranged between the second substrate and the liquid crystal layer; the first electrode layer and the second electrode layer are used for producing electric fields, so that the liquid crystal layer can produce a lens effect; and the first electrode layer comprises a plurality of strip electrodes, the strip electrodes are arranged at a certain interval, and each strip electrode is provided with a structure with gradually-changed transmittance along a direction perpendicular to the extending direction of the strip electrode. Through the mode above, by using the stereo display device and liquid crystal lens disclosed by the invention, the imaging quality can be improved, and a good image display effect can be achieved.

In a laser light generating device, the stability against vibration and time-dependent changes will be improved, and influences of temperature changes exerted on the resonator will be reduced.

In a laser light generating device (1) which includes an excitation light source (2) for generating a continuous-wave excitation light and a solid-state laser resonator (4) based on using thermal lens effect caused by heat generation at a position of excitation, the solid-state laser resonator further includes a laser medium (4a), a saturable absorber (4b), an intermediate medium (4c) and reflection means (4d) as the constituents. Influence of vibration is reduced by bonding a substrate of the laser medium (4a) and a substrate of the saturable absorber (4b) so as to integrate them. By adopting a configuration which does not need any method of selecting operating point based on temperature changes and is less susceptible to heat, and by relatively moving the excitation optical system and the resonator in the positional relation of the both to thereby adjust the light path length of the resonator, so as to make it possible to select a stable operating point.

The disclosed thermal-lensing compensation method for laser rod comprises: setting the holophote with a step-motor driving movable mechanism in optical resonator of laser as raised convex mirror toward the laser rod; controlling the step motor by a computer to make the distance from mirror to rod as a = f - R/2 - d/2n. Wherein, R for curvature radius of the mirror, d for rod length, n for refractive index of rod, and f for lens focus. This invention simplifies system structure, affects no energy conversion efficiency, and applies computer to control laser frequency N and pumping energy density Ep for complete automatic compensation.