48results about How to "Reduce optical aberration" patented technology

An ophthalmic device is provided for a patient that has a basic prescription for distant vision, the ophthalmic device including a primary optic and a supplemental optic. The primary optic is configured for placement in the eye and has a base optical power configured to substantially provide the basic prescription. The supplemental optic has an optical power that is less than the optical power of the primary optic and is configured to provide, in combination with the primary optic, a combined optical power that provides the basic prescription of the patient. In addition, at least one surface of the primary optic is configured to deform in response to an ocular force so as to modify the combined optical power by at least 1 Diopter. The ophthalmic device may further include a movement assembly operably coupled to the primary optic that is structured to cooperate with the eye to effect accommodating deformation of the primary optic in response to an ocular force produced by the eye. The movement assembly may also be configured to provide accommodating axial movement of the primary optic.

The present disclosure relates to devices, systems, and methods for improving or optimizing peripheral vision. In particular, methods are disclosed which include utilizing particular characteristics of the retina in improving or optimizing peripheral vision. Additionally, various IOL designs, as well as IOL implantation locations, are disclosed which improve or optimize peripheral vision.

An autostereoscopic display provides an extremely deep projection area by observing a relationship between a desired depth of projection and an autostereoscopic display design that includes a focal length of lenticles of a lenticular array and a number of views. The relationship specifies a projected depth at which lenticular crossover can occur for a given autostereoscopic with the specific lenticular focal length and number of views. Approximations can be used to simplify the relationship such that the projected depth is directly related to a product of the focal length and the number of views. To reduce optical aberrations, lenticles of the lenticular array include meniscus-cylinder lenses.

A M×N wavelength selective switch (WSS) module capable of independently routing any wavelength channel from any input port to any output port is provided. The M×N WSS includes a first beam relayer including first and second elements having optical power, each of which is disposed such that light transmitted to or from a first plurality of ports passes through a common point. The M×N WSS also includes a wavelength dispersive element, a first switching array having M rows including K switching elements, a second beam relayer, and a second switching array including N switching elements. The second switching array includes an optical by-pass disposed at the common point, which provides means for separating the input and output beams of light, and which allows both the input and output optical beams to traverse similar paths throughout the optical train.

An optical element with multi-layer composites that deforms to reduce optical aberrations in off-axis optic. Methods are also described in relation to the optical element.

The present invention relates to a beam optical component including a charged particle lens for focusing a charged particle beam, the charged particle lens comprising a first element having a first opening for focusing the charged particle beam; a second element having a second opening for focusing the charged particle beam and first driving means connected with at least one of the first element and the second element for aligning the first opening with respect to the second opening. With the first driving means, the first opening and the second opening can be aligned with respect to each other during beam operation to provide a superior alignment of the beam optical component for a better beam focusing. The present invention also relates to a charged particle beam device that uses said beam optical component for focusing the charged particle beam, and a method to align first opening and second opening with respect to each other.

An optical and mechanical design of a sealed, non-round fluid-filled lens capable of providing variation of optical power. The fluid lens includes at least three optical components: at least one mostly rigid optical disc, at least one mostly flexible optical membrane and a layer of a transparent fluid that is in communication via a fluid channel with a reservoir of excess fluid contained in a reservoir that can be accessed to augment the fluid volume inside the fluid lens to change the power of the fluid lens. The fluid lens is capable of providing correction of spherical and astigmatic errors, and utilizes contoured membranes to minimize image aberrations.

The present invention discloses an ultraviolet quasi-single pure-rotation Raman spectrum extraction-based all-day temperature measurement laser radar. The laser radar comprises a laser emitting unit, an optical receiving unit and a signal acquisition and control unit. The laser emitting unit emits the ultraviolet laser of 354. 82 nm in wavelength and the ultraviolet laser is adopted as a detection light source. The laser emitting unit sends a pulse laser beam to the atmosphere. The pulse laser beam and atmospheric particles interact to generate a series of discrete spectrum line scattering signals. The optical receiving unit receives the scattering signals through a telescope and then respectively and simultaneously extracts elastic scattering signals and quasi-single-branched anti-stoke pure-rotation Raman spectral line signals through three channels. The signal acquisition and control unit realizes the real-time acquisition and the inversion of signals, so that the normal and orderly operation of the entire laser radar system is ensured. According to the technical scheme of the invention, the signal-to-noise ratio of the system is enhanced, and the light-receiving path is optimized. The system stability is improved. The all-day detection of the atmospheric temperature, the aerosol space distribution and time evolution parameters is implemented.

Through its higher refractive index, a silicon grism can be used to reduce the Described herein are systems and methods for reducing optical aberrations in an optical system to decrease polarization dependent loss. Embodiments are provided particularly to define beam trajectories through an optical switching system which reduce off-axis aberrations. In one embodiment, a silicon grism is provided for reducing the curvature of the focal plane at an LCOS device in a wavelength selective switch (WSS) such that the separated polarization states converge at the LCOS at substantially the same point along the optical axis for all wavelengths. In this embodiment, an axial offset at the LCOS device will not produce large PDL at the coupling fibers. In another embodiment, a coupling lens having an arcuate focusing region is provided to address an offset in the optical beams, such that the separated polarization states couple symmetrically to respective output fibers.

An optical device has a housing for receiving a plurality of optical fibers adapted to carry optical signals. A filter is disposed within the housing for transmitting specific optical signals having a predetermined wavelength range. A first ball lens is coupled to the housing and is positioned relative to the filter and the optical fibers to selectively collimate and focus the optical signals. A second ball lens is coupled to the housing and is also positioned relative to the filter and optical fibers to selectively collimate and focus the optical signals. Both ball lenses are optically coupled to the filter.

An optical lens system with a wide field of view includes, in order from the object side to the image side: a stop, a first lens element with a positive refractive power, a second lens element with a negative refractive power, and a third lens element with a positive refractive power. A focal length of the first lens element and the second lens element combined is f12, a focal length of the third lens element is f3, and they satisfy the relation: 0.3<f12/f3<0.9, so that the optical lens system has a wide field of view, high resolution, short length and less distortion.

A quantum dot-based polarization built-in color liquid crystal display according to the present invention comprises: a light source; a liquid crystal optical unit which is positioned above the light source and controls the phase delay of light incident from the light source; a polarizing functional layer that is positioned above the liquid crystal optical unit and that adjusts the transmittance oflight; and a quantum dot light-emitting section that is positioned above the polarizing functional layer and includes a plurality of quantum dot patterns having different light-emitting characteristics in a visible light region in accordance with the intensity of transmitted light. According to the embodiment, the quantum dot patterns and the polarizing functional layer are formed in the display,therefore, the characteristics of high color purity, low optical aberration, low interference effect and the like can be realized at the same time without a color filter; ; the polarizing functionallayer can be manufactured through a solution process, so that the advantages of low cost, simplified process and large area can be realized, and the limitation of a conventional color display technology based on quantum dots can be overcome.

An apparatus for adjusting an optical pathway, comprising a diffractive optics element configured for diffracting a plurality of light waves passing in the optical pathway, and a diffractive optics element (DOE) manipulator configured for manipulating said diffractive optics element, thereby changing the optical pathway.