54 results about "Membrane mirror" patented technology

A MEMS device having a deformable segmented mirror. The mirror includes a plurality of movable segments supported on a substrate using spring vertices, each vertex having a fixed plate and one or more springs. In a representative embodiment, three springs support each movable segment, where each spring connects the movable segment to a different spring vertex. The MEMS device also has a plurality of electrodes, each of which can be individually biased. A movable segment moves in response to a voltage applied to an electrode located beneath that segment while the deformed springs attached to the segment provide a restoring force. Due to the fixed plates, motion of each movable segment is substantially decoupled from that of the adjacent segments, which makes the shape of the segmented mirror relatively easy to control. In addition, segments in a deformable mirror of the invention can be displaced by a distance that is significantly larger than the maximum deformation amplitude for a membrane mirror of the prior art. The MEMS device can be fabricated using two silicon-on-insulator (SOI) wafers and an etch fabrication technique.

A camera is capable of both silver-halide shooting, through which object images are recorded on silver-halide film, and video shooting, although its distance measurement device is placed substantially in the same way and its mirror box has substantially the same size as in ordinary single-lens reflex cameras. In this camera, a pellicle mirror splits the light flux having passed through a taking lens into a first light flux and a second light flux, and a rotatable mirror switches the subsequent path of the second light flux between the optical path for a third light flux and the optical path for a fourth light flux. The pellicle mirror, through its light flux splitting function, directs the first light flux to a silver-halide shooting system, and directs the second light flux to the rotatable mirror. The rotatable mirror, through its optical path switching function, either directs the third light flux to an optical viewfinder system, or directs the fourth light flux to a video shooting system.

An optical dispersion compensator including: a spacer element having a top surface and a bottom surface; a thin film, multi-layer mirror formed on the top surface of the spacer element, the thin film mirror having a thermally tunable reflectivity; a highly reflective mirror element formed on the bottom surface of the spacer element; and a heater element for controlling a temperature of the thermally tunable thin film mirror.

An object of the invention is to provide a composite film and a film mirror for solar light reflection, to which dust and the like is not likely to adhere, of which resistance to scratch due to dust and the like is excellent, and in which cleaning properties of adhered dust and the like are excellent. The composite film according to the invention includes a composite film having a support and a surface covering layer, in which an elastic recovery rate of the surface covering layer is 60% or greater, a surface hardness thereof is 100 N/mm² or less, and a water contact angle of a surface thereof is 40° or less.

The purpose of the present invention is to provide a film mirror having a high reflectivity for efficiently concentrating solar light and having excellent weather resistance, and to provide a method for manufacturing the film mirror, a film mirror for photovoltaic power generation, and a reflection device for photovoltaic power generation. This film mirror of the present invention is a film mirror 10a in which a metal reflective layer 3 is disposed above a resin substrate 1. The film mirror is characterized in that it is provided with, closer to the light incident side than the metal reflective layer 3, an interface reflective layer (dielectric reflective layer) 6 having at least one set of a high refractive index layer and a low refractive index layer that are adjacent to each other, and at least one of the high refractive index layer and the low refractive index layer contains a water soluble polymer and metal oxide particles.

A film mirror for reflecting sunlight includes a polymer film substrate, a reflective layer including silver coating, and a protective coating layer in sequence from the incident side of sunlight. The reflective layer is formed by coating and calcining (firing) a coating liquid containing a silver complex compound.

The invention discloses a fabrication method for a hydrogel/macromolecule polymer film muscular tissue support. The method comprises obtaining a three-dimensional support structure through a layer-upon-layer stacking mode; designing and fabricating a blood vessel network structure mold and a directional flow passage mold according to muscle structural characteristics; fabricating polymer directional film through an electro-spinning technology, fabricating a support single-layer plane structure, stacking other layers of supports on the three-dimensional support structure, and performing covering with the macromolecule polymer film support bonded on the outermost layer to obtain the hydrogel/macromolecule polymer film support. According to the method, the blood vessel network and the directional flow passage are fabricated on hydrogel, directional growth of cells can be achieved through the directional flow passage, nutrition and oxygen supply can be achieved through blood vessel network pipes, the polymer film covered on the periphery has a directional structure, and accordingly, directional growth of peripheral cells can be achieved, stretched film is bound and sewn, and fixation of the support is achieved.

A film mirror for solar radiation collection includes at least a protective layer, a silver reflective layer and a resin substrate in this order from a light incident side and has a corrosion inhibitor present at either or both of a surface and a surface layer of the silver reflective layer on the protective layer side, with the content of the corrosion inhibitor being 0.1 to 10 mg/m². The film mirror for solar radiation collection is excellent in adhesion of the protective layer and in lightfastness as well.

The invention discloses a transfer membrane mirror copper coating, comprising the components in parts by weight: 100 parts of pigment, 25-40 parts of latex, and 1.5-6.5 parts of a release agent, wherein the pigment is calcium carbonate or silica; the mean particle size of the calcium carbonate is 0.2-0.7 microns; the glass transition temperature of the latex is 8-35 DEG C. The invention also provides a coated paper prepared by using the transfer membrane mirror copper coating. The transfer membrane mirror copper coating disclosed by the invention can be suitable for various printing modes of a relief block, a soft block, a gravure, an offset plate, UV (ultraviolet) ink printing and the like, and is bright in printing color, fast to dry the ink, firm to stick the ink, and good in effect. The surface gloss of the coated paper coated by the transfer membrane mirror copper coating is greater than 90%; the surface smoothness is greater than 1000 seconds.

In an optics system, a flexible mirror is deformed with an electromagnetic force. In one embodiment, an electrical current is directed through the mirror, or a conductor attached to the mirror, in the presence of a magnetic field. In one application in an adaptive optics system, the membrane mirror is used in a wavefront sensor. Deformed to oscillate between convex and concave positions, the mirror is used to alternately defocus a received light signal for determining aberrations in the light signal. By detecting aberrations in the light signal, the adaptive optics system can correct for those aberrations.

The invention relates to a micro acoustic sensor based on a diffraction grating structure. The micro acoustic sensor comprises a MEMS chip, a VCSEL, a PD and a substrate, wherein the MEMS chip comprises a diffraction grating and a membrane mirror; the membrane mirror is located above the diffraction grating; an upper cavity is formed between the membrane mirror and the diffraction grating; and a lower cavity is formed between the diffraction grating and the substrate. The micro acoustic sensor, based on an optical principle, improves a capacitive sensor structure, optimizes the size and the structure of the diffraction grating, adjusts the distance between the diffraction grating and a thin film sensor, converts an acoustic signal into a light intensity change signal, and further convertsthe light intensity change signal into an electric signal to be output by an photoelectric detector. The diffraction grating reduces the noise of the structure. The optical principle improves the sensitivity of the sensor, solves the low sensitivity and large noise of a current MEMS acoustic sensor, and has the advantages of flexible structure design and low cost.

Provided is a film mirror for solar light reflection, which is so adapted that a protective layer containing a resin is arranged on the solar light incident side relative to a resin-film-like support and a silver reflective layer. The resin has a benzotriazole-type ultraviolet-ray-absorbing group and/or a triazine-type ultraviolet-ray-absorbing group.

Provided is a planar film mirror installing method. Firstly, a round film mirror is expanded to be in a planar state, rectangular thin gaskets with holes evenly and firmly adhere to the periphery of the film mirror through a special tool, the two ends of N ropes are connected with the rectangular gaskets and tension sensors respectively, and the tension sensors on the periphery are fixed so that the ropes can be located on the same plane. Then, a precise supporting ring is placed below the film mirror which is slightly ejected through the side with an annular step face, a pressing ring is installed above the supporting ring, the pressing ring is pre-tightened through a screw, but it is guaranteed that the film mirror can move between the pressing ring and the supporting ring, tension is applied to the outermost ends of the ropes on the periphery of the film mirror, tension values are displayed through the tension sensors, the tension values are adjusted, deformation of the film mirror is detected in real time, and the tension values are repeatedly adjusted according to actually measured deformation so that the film mirror face can be optimal. According to the method, supporting is performed through the supporting ring, installation of the high-precision planar film mirror is achieved in a coplane tension adjustment mode on the edge of the film mirror, and the using requirement of a high-precision optical system can be met.

A film mirror for solar heat power generation suppresses decline of regular reflectance caused by degradation of a sticky adhesive layer provided on the side opposite to the light incidence side of a reflection layer; is lightweight and flexible; exhibits excellent light resistance and weather resistance; and has excellent regular reflectance to sunlight; and others. The film mirror has a silver alloy reflection layer including a main group metal element or transition metal element; or a reflection layer including a silver layer and laminated on a side opposite to an incident light side of the silver layer, a thick layer, the film mirror having a structure in which a support is attached onto a sticky adhesive layer provided on a side opposite to the incident light side of the silver alloy reflection layer or the reflection layer.

The thin-film mirror includes a pan-shaped housing having a pan surface and a hollow wall bordering the pan surface. The hollow wall has a mounting surface for thin reflecting film, which mounting surface is stepped above the pan surface. The hollow wall has an open portion opposite the mounting surface and accommodates a reinforcing member that rigidities the pan-shaped housing. A thin reflecting film that spans the pan surface is secured to the film mounting surface. The pan-shaped housing is a miterless one-piece structure which can be in the form of a trapezoid. Hollow fillets can be provided at the acute angle corners of the trapezoid. The fillets constitute an additional mounting surface portion for the thin reflecting film and are formed such that no corner of the mounting surface has an acute angle.

The present invention provides a method of constructing a thin film mirror, which method comprises: (i) attaching a thin film (72) to a suction chamber (68), the suction chamber (68) having edges which are for attaching the thin film (72) and which lie in a desired geometry for the thin film mirror to be constructed; (ii) applying a partial vacuum to the suction chamber (68) such that tension is introduced into the thin film (72); (Hi) adjusting the partial vacuum to form the thin film mirror but with the thin film mirror achieving the desired geometry only over a portion of the thin film mirror; (iv) providing first tensioning means (78, 80) and locally adjusting the first tensioning means (78, 80) such that the portion of the thin film mirror which achieves the desired geometry is increased, the first tensioning means (78, 80) being in contact with the surface of the thin film (72) adjacent to the edge of the suction chamber (68) at a first distance which is substantially uniform from the edge of the suction chamber (68); and providing second tensioning means (82, 84) and locally adjusting the second tensioning means (82, 84) such that the portion of the thin film mirror which achieves the desired geometry is further increased, the second tensioning means (82, 84) being in contact with the surface of the thin film (72) adjacent to the first tensioning means (78, 80) at a second distance which is substantially uniform from the edge of the suction chamber (68), and which second distance is greater than the first distance from the edge of the suction chamber (68) of the first tensioning means (78, 80).

A film mirror has high bruise resistance and weather resistance and can be produced with high productivity, and a sunlight reflecting mirror is provided using the film mirror. The film mirror has a resin substrate, a silver reflective layer provided on the substrate, and an outermost layer that is made of a material having a metalloxane skeleton and that is provided on the outermost side on the side closer to a light source than the silver reflective layer. The outermost layer, which is made of the material having a metalloxane skeleton, has a contact angle with water of 80° or above and below 170° and has a coefficient of dynamic friction of 0.10 to 0.35 inclusive.