88results about How to "Reduced optical performance" patented technology

Various embodiments of an eyeglass and eyeglass system are provided that can maintain the geometric and optical quality of a lens supported by the eyeglass. The eyeglass can comprise a frame, a support member carried by the frame, and a lens mounting area or groove extending at least partially along at least one of the frame and the support member. The support member can be pivoted, moved, or deflected relative to the frame between a retaining position and an open position. In the open position, the lens can be seated within the lens mounting area. In the retaining position, the support member and the frame retain the lens without exerting deformative forces on the lens. Accordingly, the as-molded geometric and optical qualities of the lens can be preserved.

A glass tube including quantum dots in a polymerized matrix is described. An optical component and other products including such glass tube, a composition including quantum dots, and methods are also disclosed.

An epifluorescence microscope achieves a compact form factor without sacrificing optical sensitivity by the novel use of combined optic mounts and light baffles constructed using additive manufacturing processes. The use of additive manufacturing enables stray-light-capturing structures that are not practical to make by other techniques. Some embodiments of the present invention do not require installation of filters by an operator, reducing the likelihood of dust and contamination on optical surfaces. Some embodiments of the present invention employ a novel light path that avoids passing the fluorescent light through off-axis elements. This optical arrangement provides for the use of a microscope objective having a finite corrected-image distance, such as a DIN objective, rather than infinity-corrected objective that require additional optical elements to form an image. The reduction in complexity can both reduce system cost and improve optical performance by reducing Fresnel losses and imaging artifacts from Fresnel reflections.

An anti-reflection sheet is formed in a manner of forming a resin layer, which has many fine projections 12, on a flat and smooth surface of a transparent substrate 11. Transparent resin is molded into the projections 12, the projections 12 have an almost quadratic function-shaped cross section including a center axis C perpendicular to the surface of the substrate 11, and a surface of the projection 12 is preferably a rotational paraboloid. A ratio (aspect ratio) b/a of a height b and width a of the projection 12 is 1 or less. Additionally, an arranged pitch P of the projections 12 is not more than half of a wavelength of incident light.

The invention provides a method for adopting a direct polymerization method to prepare a high-melt-strength propylene/ethylene/butene random copolymer. The method comprises during different polymerization reaction stages of series connection operation, controlling categories and proportions of external electron donor components in a Ziegler-Natta catalyst system at different reaction stages according to the requirements of different molecular weight fractions, so that the propylene/ethylene/butene random copolymer with wide molecular weight distribution and extremely high molecular weight fractions can be prepared. The invention further correspondingly provides the propylene/ethylene/butene random copolymer with high melt strength. Compared with homopolymerized high-melt-strength polypropylene, the propylene/ethylene/butene random copolymer has good mechanical property and optical performance, extremely low melting point and extremely high melt strength and is suitable for preparing high-magnification foaming products, post processing energy consumption is low when the propylene/ethylene/butene random copolymer is applied to molding of high-magnification foaming beads, and the foaming beads are high in adhesion strength and good in toughness.

An optical apparatus is disclosed which comprises an optical system provided with a zoom lens for performing zooming by moving along the optical axis and a focus lens for performing correction and focusing at the time of zooming, an imaging device for imaging an optical image supplied from the optical system, a zoom actuator for driving the zoom lens, a focus actuator for driving the focus lens, a zoom position detecting device for detecting the position of the zoom lens, a focus position detecting device for detecting the position of the focus lens, an aperture stop member whose opening diameter changes so as to adjust the luminous energy passing through the optical system a filter member to be freely inserted into or extracted from the optical path of the optical system, an aperture stop state detecting device for detecting the opening state of the aperture stop member, a filter state detecting device for detecting the insertion state of the filter member, a memory storing the movement information on the relation between the position of the zoom lens for keeping a focused state and the position of the focus lens, and a control device for correcting the movement information in accordance with an output of the aperture stop state detecting device and an output of the filer state detecting device and controlling driving of the focus lens.

The invention proposes an installation and adjustment system and method for a multi-layer nested X-ray grazing incidence optical lens, and the system comprises a suspension subsystem, a measurement subsystem, a displacement subsystem, a pre-installation supporting device, an optical supporting platform, and a focal plane receiving screen. The method comprises seven steps: preparation, suspension, pre-installation, alignment, measurement, binding, and supporting structure installation. The system and method can greatly improve the installation and adjustment precision, speed and yield of the multi-layer nested X-ray grazing incidence optical lens, achieve no-stress installation and adjustment, improve the optical performance, are easy to implement, is high in universality, is high in installation and adjustment precision, and is high in installation and adjustment efficiency.

There is disclosed a mirror rocking member for an optical deflector. The optical deflector comprises the mirror rocking member for deflecting light, and a driver for driving the member. The mirror rocking member comprises a movable plate having a reflective surface, an elastic member for rockably supporting the movable plate, and a support for supporting the elastic member. The movable plate has an electric element, which constitutes a part of the driver. The movable plate includes a first portion having the reflective surface, and a second portion including an electric element. The first portion has a reflective-surface forming surface with the reflective surface formed thereon, the second portion has an electric-element forming surface with the electric element formed thereon, and the reflective-surface forming surface has an area smaller than an area of the electric-element forming surface.

A Raman shifter is provided with improved optical efficiency and robustness, particularly for high power applications. In one embodiment, a source system (100) includes a source pump laser (102) and a seed laser (104). Beams from the pump laser (102) and seed laser (104) combine for transmission into a Raman cell (112). Folding optics define a multi-pass pathway through the Raman cell (112). Such folding optics may include an internal reflectance element. An entry window into the Raman cell, an exit window from the Raman cell, and the internal reflectance elements include surfaces disposed at a Brewster angle relative to the incident beam. The Raman cell medium is circulated in a direction transverse to the beam pathways through the cell. In this manner, improved optical efficiency and robustness is achieved as well as improved performance over a significant wavelength band.

The invention discloses a chemical reinforced composition of silica coating glass for panel display, which comprises the following parts: fusing salt with 85-99% potassium nitrate and 0.01-10% bialuminium trioxide, 0.01-10% other potassium salts, wherein the potassium salt contains one or more from potassium phosphate, potassium nitrite, potassium chloride, potassium sulfate, potassium silicate, potassium hydrogen phosphate and potassium bichromate.

A transparent base plate supports a first compensating layer, which is adapted to compensate for a phase difference due to liquid crystal molecules having undergone normal orientation in a liquid crystal layer of a TN liquid crystal display device, and second compensating layers, which are adapted to compensate for the phase difference due to the liquid crystal molecules having undergone hybrid orientation in the liquid crystal layer. Each of the second compensating layers is constituted of one of oblique incidence vacuum deposited films, which are formed on opposite surfaces of the base plate with oblique incidence vacuum evaporation of an inorganic material. An azimuthal angle and/or a polar angle of a direction of vacuum evaporation with respect to a plane of vacuum evaporation is set to be different between the second compensating layers.

A light flux controlling member of the present invention includes an incidence area and an emission area. The incidence area includes a plurality of protrusions each having an incidence surface, a reflection surface, and a ridge line. The reflection surface disposed outermost includes a plurality of split reflection surfaces that reflects light having entered the light flux controlling member toward the emission area, and one or two or more stepped surfaces disposed between the two adjacent split reflection surfaces and at a dead angle position relative to a traveling direction of the light having entered the light flux controlling member. The protrusion disposed outermost has a projection part projecting in a direction along a central axis, with a tip portion thereof being closer to the emission area than an end portion of the light flux controlling member on a light emitting element side is in the direction along the central axis.

The invention provides a method for preparing a hydrophobic SiO2 anti-reflecting film from dodecyl triethoxysilane. The method comprises the specific steps: mixing ethyl orthosilicate, dodecyl triethoxysilane, anhydrous ethanol and ammonia water according to the mass ratio of (11.0 to 15.6): (1 to 8): (130 to 200): (3.6 to 6), adding the mixture into a closed glass vessel, firstly, carrying out stirring for 0.5 to 12 hours at the temperature of 25 DEG C to 50 DEG C, and then, carrying out aging for 3 to 30 days at the temperature of 20 DEG C to 40 DEG C; and carrying out filming on a cleanly-washed substrate by adopting a dipping-pulling method under the condition that relative ambient humidity is 20% or below, thereby obtaining a film layer, i.e., the hydrophobic SiO2 anti-reflecting film. According to the method, the process is quick and efficient, the hydrophobicity of the anti-reflecting film is improved, and the service life of the anti-reflecting film in optical fields of solar systems and the like is prolonged.

A method of encapsulating materials to protect circuit components from the stress of thermal cycling includes applying a first substance to cover Wire bonds on a first layer, applying a second substance to wire bonds on a second layer, and curing the first and second substances by application of heat or radiation to bond the first and second substances together. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

The present invention is directed to provide an enhanced variable power zoom lens that has focusing lens optics reduced in weight so as to relieve of a load on a focusing drive system, and that has its anti-vibration lens optics reduced in both diameter and weight so as to relieve of a load on an anti-vibration drive system and downsize the same. The enhanced variable power zoom lens is adapted to have the foremost or first lens group G1 of positive refractivity, the second lens group G2 of negative refractivity, the third lens group G3 of positive refractivity, the fourth lens group G4 of negative refractivity, and the fifth lens group G5 of positive or negative refractivity arranged in sequence from a position closer to the object where the fourth lens group G4 serves as a focusing lens, and the third lens group G3 and the fifth lens group G5 together move on and along the same cam structure during zooming.

A refractive index writing system includes a pulsed laser source, an objective lens for focusing an output of the pulsed laser source to a focal spot in an optical material, and a scanner for relatively moving the focal spot with respect to the optical material along a scan region. A beam multiplexer divides the output of the laser source into at least two working beams that are focused to variously shaped focal spots within the optical material. A controller controls at least one of a temporal and a spatial offset between the focal spots of the working beams together with the relative speed and direction of the scanner for maintaining an energy profile within the optical material along the scan region above a nonlinear absorption threshold of the optical material and below a breakdown threshold of the optical materials.

There is provided a shake correction apparatus having an image pickup optical system that includes a correction lens capable of moving in a direction orthogonal to an optical axis. The shake correction apparatus comprises: a detection unit that detects shake applied to the shake correction apparatus; a determination unit that determines a reference position of the correction lens; and a drive unit that drives the correction lens with the reference position serving as a center position, so as to correct the shake detected by the detection unit. The determination unit determines the reference position, in a range where a condition that a Modulation Transfer Function (MTF) of the image pickup optical system when the correction lens is positioned at the determined reference position is equal to or larger than a threshold is satisfied.

The invention relates to a piece of conducting glass and a preparation method thereof. The conducting glass comprises a transparent glass base. The conducting glass further comprises an impurity stopping layer and a conducting functional layer which are sequentially overlapped on the transparent glass base, wherein the impurity stopping layer is formed by a metal oxide layer and a monox layer which are overlapped, or a mixture layer of the metal oxide layer and the monox layer. According to the conducting glass, the impurity stopping layer can be used for preventing the situation that sodion spreads and enters a tin oxide film to generate fog on the film and cause the reduction of the chemical properties of the film, so that resistance can be reduced while high optical transmittance can be ensured; and when the conducting glass serves as a transparent conducting electrode of a photoelectric device, a contact-potential barrier can be provided, and thereby, the loss of the impedance of the device can be reduced.