Abstract: The present invention is directed to various embodiments of medical devices and methods for occluding a fallopian tube for contraception and permanent sterilization. In one embodiment, the medical device includes an outer member, an inner member and a tissue growth member. The outer member includes an outer surface and an inner surface, wherein the inner surface defines a bore in the outer member. The inner member is configured to be positioned within the bore of the outer member. The tissue growth member is attached to the outer surface of the outer member and is configured to induce tissue growth thereto. With this arrangement, the medical device can be implanted within the fallopian tube and serve as a permanent occluding device therein. If desired, the medical device can be partially removed from the fallopian tube to restore the ability for conception.

Abstract: The invention comprises a semi-vertical patient positioning, alignment, and/or control method and apparatus used in conjunction with charged particle or proton beam radiation therapy of cancerous tumors. Patient positioning constraints are used to maintain the patient in a treatment position, including one or more of: a seat support, a back support, a head support, an arm support, a knee support, and a foot support. One or more of the positioning constraints are movable and/or under computer control for rapid positioning and/or immobilization of the patient. The system optionally uses an X-ray beam that lies in substantially the same path as a proton beam path of a particle beam cancer therapy system. The generated image is usable for: fine tuning body alignment relative to the proton beam path, to control the proton beam path to accurately and precisely target the tumor, and/or in system verification and validation.

Abstract: The invention relates to a mandibular protrusion device comprising an upper dental tray (1) to be placed on the upper dental arch of a patient and a lower dental tray (2) to be placed on the lower dental arch, as well as two lateral links for connecting both trays (1, 2) in order to advance or draw back the lower dental arch during a vertical movement between both dental arches, each lateral link comprising a means of traction (3) attached to the trays (1,2) via its ends (3a). Each lateral link comprises ball pivots (4) having an opening (4a, 4b) for receiving an end (3a) of a means of traction (3), and each tray (1, 2) comprises two lateral seats (1d, 2d) for accommodating a ball pivot (4) connected to a means of traction (3) so that the lateral links are connected to the trays (1, 2) via a ball pivot joint. The invention also relates to a corresponding lateral link and to a method for assembling the mandibular protrusion device.

Abstract: An anti-snore garment in the form of a shirt having at least three cylindrical bumpers removably fitted within bumper pockets on the back of the shirt. The tops of the bumper pockets are horizontally aligned with a wearer's shoulder blades. The bumpers are adapted to resist rotation of the wearer into a supine position.

Abstract: A ventilating mouthguard device, kit and method of using same is presented for use in providing a user an auxiliary boost of air while wearing the mouthguard. The ventilating mouthguard device includes a base plate, an on/off switch, a power supply and a fan. The base plate has an air passageway traversing all the way thought the base plate so that outside air can easily channeled into the mouth of the user. The on/off switch is electrically coupled to the power supply and to the fan. The fan is positioned so that it is in fluid communications within the air passageway in order to push air into the mouth of the user. The kit includes the unconnected components of the ventilating mouthguard device. The method includes the steps of applying, coupling, covering, curing, mixing, mounting, obtaining, preparing, removing, selecting, and turning.

Abstract: A bite block is to be positioned between opposing upper and tower teeth in a patient's mouth. The bite block includes an elongate member having a top and a bottom. First and second sidewalls are coupled to the elongate member on opposite sides thereof. Each sidewall extends above and below the top and bottom of the elongate member to define upper and lower teeth spaced apart transverse notches defined in an upper surface thereof. In addition, the second sidewall has a second set of spaced apart receiving channels. The first sidewall has a first set of transverse notches defined in an upper surface thereof. The first sidewall may also have a third set of spaced apart transverse notches defined in a lower surface thereof. In addition, the second sidewall may also have a fourth set of spaced apart transverse notches defined in a lower surface thereof.

Abstract: Methods and apparatus for transmitting vibrations via an electronic and/or actuator assembly through a custom-fitted dental appliance are disclosed herein. The customized fitting is done by the user. The assembly may be attached, adhered, or otherwise embedded intra-orally on a tooth or oral tissue. The electronic and actuator assembly may receive incoming sounds either directly or through a receiver to process and amplify the signals and transmit the processed sounds via a vibrating actuator element coupled to a tooth or other bone structure, such as the maxillary, mandibular, or palatine bone structure.

Abstract: Provided is a cigarette filter and method of making the filter. The filter includes an adsorbent dispersed within the filter and a downstream plug of randomly-oriented fibers. The randomly-oriented fibers mechanically capture adsorbent particles entrained in tobacco smoke. One or more plugs of axially-oriented fibers may also be located upstream and/or downstream of the adsorbent, and are included in an amount sufficient to adjust the length of the filter.

Abstract: The invention is directed at the full simulation of a smoking process when a smoker uses the inventive pipe. Said smoking-simulating pipe comprises a shank (1) and a bowl (2) which are embodied in one piece, and a stem (4) which is detachable from the shank (1) and is provided with a bit, wherein a cavity (5), which is used for placing a sealed capsule (6) provided with a nicotine-containing or flavouring agent, is embodied in a smoking channel (14), and an electric heater (7) connected to a power supply (8), which is arranged in the walls of the bowl (2), is located before the capsule (6) in the smoking channel (14).

Abstract: Method for manufacturing a wrapper for use in the manufacture of cigars in which a wrapper to be used for enclosing fillers is obtained in that a tobacco leaf (1) is cut into a number of parallel strips (5) substantially in longitudinal direction, so in the direction of the mid rib (2), whereupon the ends (9) of the strips obtained are connected to each other to one continuous wrapper ribbon (10). At both ends (9), the strips (5) are cut-off across an acute angle (?) to the longitudinal direction, said angle approximately coinciding with the angle enclosed by the side ribs (3) and the mid rib (2). The continuous wrapper ribbon (10) can be wound around the fillers fed as a strand in longitudinal direction, whereupon both longitudinal edges (12) will be connected to each other The continuous wrapper ribbon (10) is wound onto a roller (11), which is fed to the cigar winding machine.

Abstract: A hair extension element for extending a strand of hair is securable to the strand of hair through a flexible holding member. The holding member comprises a through hole for guiding and clamping the strand of hair. The holding member and the hair extension element are integrated so as to provide the hair extension element as an integrated part to the strand of hair. Furthermore a holding member which is provided with at least an ornament comprises at least two through holes extending substantially parallel to each other for guiding strands of hair there through. A holding member comprising at least one through hole is provided with at least two ornaments on its outer side.

Abstract: A hair styling apparatus including a magnetron and a styling base in communication with the magnetron for styling a moistened lock of hair is provided. A shield removably encases the styling base for shielding microwave radiation emitted from the magnetron. The lock of hair is heated upon activation of the magnetron. Methods of curling and straightening hair are also provided.

Abstract: Machine for styling hair in the form of long locks of hair entwined in dreadlocks includes a container body accommodating an electric or pneumatic motor. There is a handle which, in its lower front part, forms a nose through which an interchangeable harpoon needle projects, the needle being provided with at least one traction harpoon and being installed in a particular rotary position with the aid of removable device. The container body has a switch above and behind the nose. The electric or pneumatic motor has a regulator for the speed and has a shaft, which extends parallel to the interchangeable harpoon needle, rotationally coupled to it.

Abstract: A bottle configured to retain and dispense hair coloring material. The bottle includes a container having one wall that is cylindrical in shape. A bottom cap is releasably secured to one end of the container. Disposed within the container is a plunger. Intermediate the plunger and the bottom cap is a coil spring. A plunger rod is secured to the plunger and extends outward from the container through the bottom cap. The bottle further includes a rod lever configured to bias the plunger rod and a handle operably connected to the rod lever. The bottle also includes a nozzle releasably secured to the container and a nozzle cap.

Abstract: Improvement in floss box for public place, wherein the box comprises a general structure (1) that is defined by a base (2) to be mounted against the wall, and a cover (3) defined in a way to recover all internal devices of the box; the base (2) incorporates a mounting support (4), wherein it is positioned a bobbin (5); the base (2) receives the mounting of the direction pulley (6), which is fixed along with an axis (7) centered on the base (2), said pulley having a small channel (8), wherein the floss box hereby treated characterized by the fact that in the bottom of the channel (8) of direction pulley (6) is provided a perimeter cavity (9); the referred perimeter cavity (9) retains floss (X) along with periphery of direction pulley (6), making the said floss (X) to assume a more favorable condition at the moment of its exposure due to the expelling device (10) action.

Abstract: A dental floss holder has a main body and a stretching assembly. The stretching assembly is mounted on the main body and has a mounting member, a one-way rotating bolt, a nut, a spring and a fixing bolt. The mounting member has a base, multiple first pawl teeth and a stud formed on the base. The one-way rotating bolt is mounted rotatably on the stud and has a threaded section having a teeth end and a spring end, an enlarged head formed on the teeth end and having multiple second pawl teeth engaging the first pawl teeth on the base and a through hole accommodating the stud. The nut is screwed on the one-way rotating bolt. The spring is mounted around the stud and engages the spring end of the threaded section. The fixing bolt is mounted on the stud and extends through and holds the spring.

Abstract: The present invention relates to an improved method for cleaning using plasma In particular, the present invention relates to the plasma cleaning and decontamination of instruments for use in medicine, dentistry and food preparation whereby the soiled item is exposed to a solvent and then to a plasma, whereby this enables excitation of water within the soil itself.

Abstract: An electrolytic cell includes an electrode in a chamber including an electrolyte and an electrical power supply arranged to supply electrical energy to the electrode. A current sensor detects electrical current in the cell. A reservoir of a metal salt solution is provided. A controller is arranged to supply metal salt solution from the reservoir to the chamber of the cell in dependence on the current detected at the sensor. This permits the conductivity of the electrolyte to be brought up to required levels quickly, independently of dynamic cell conditions. Previously, metal salt was added gradually to the electrolyte. This was time-consuming and produced inconsistent results.

Abstract: Detergent compositions of the present invention are flowable powders comprising an alkali metal salt and a builder. Optional ingredients may include an oil and/or a surfactant. The ingredients making up the detergent composition are combined into flowable powders that may be added to a wash solution. The detergent compositions may be particularly suited for use with automated metering and dispensing devices for granulated materials.

Abstract: In a first aspect, a module is provided that is adapted to process a wafer. The module includes a processing portion having one or more features such as (1) a rotatable wafer support for rotating an input wafer from a first orientation wherein the wafer is in line with a load port to a second orientation wherein the wafer is in line with an unload port; (2) a catcher adapted to contact and travel passively with a wafer as it is unloaded from the processing portion; (3) an enclosed output portion adapted to create a laminar air flow from one side thereof to the other; (4) an output portion having a plurality of wafer receivers; (5) submerged fluid nozzles; and/or (6) drying gas flow deflectors, etc. Other aspects include methods of wafer processing.

Abstract: A dishwasher is disclosed, which can prevent deformation of a filter due to water pressure from occurring even if the filter is stopped up with dirt. The dishwasher comprises a sump for storing washing water; a drainage chamber provided at a side of the sump and linked with a drainage pump; a dirt chamber including a collection pipe supplying the washing water of the drainage chamber to a dirt storage unit; a filter provided above the dirt storage unit, filtering the washing water; and a bypass path linking the drainage chamber with the sump, provided to pass through a position higher than the filter.

Abstract: An assembly used to scrape clean a vent pattern with a blade and catch or the scrapings.

Abstract: An unmanned vehicle for displacing material, in particular dung, from the floor of a shed includes a frame, with disposed thereon a material displacer, propulsion mechanism and navigator with a sensor for forming an image of an observation area, the sensor including a source of radiation for modulated electromagnetic radiation, a receiver device for electromagnetic radiation reflected by an object in the observation area, and a sensor image processor, wherein the receiver device includes a matrix with a plurality of rows and a plurality of columns of receivers, and the sensor image processor is configured to determine for each of the receivers a phase difference between the emitted and the reflected electromagnetic radiation in order to calculate a distance from the receiver to the object. Such a vehicle is capable of detecting and displacing material in a very reliable manner by utilization of the depth image obtained by the sensor.

Abstract: An apparatus for walking assistance to facilitate the movement of individuals who require assistance over short distances for brief periods of time is provided. Specifically, the apparatus allows those having lower limb amputations to move temporarily without a prosthetic device. The apparatus includes a T-shaped cane having a single, adjustable support post with a T-shaped crossbar having two handles. At the base of the cane is a curved support foot with a cushioned contact surface for placement against the floor. The collapsible apparatus includes four primary components; (1) a top receiver bar, (2) a lower receiver bar, (3) a pair of handlebars, and (4) a base platform. The top receiver bar includes a T-shaped cross piece for handlebar insertion. In an alternate embodiment, the top receiver bar comprises a simple cylindrical tube while the handlebar component comprises a T-shaped cross piece. The lower receiver bar telescopes within the top receiver bar at a desired height.

Abstract: A two-headed walking stick is provided that comprises a variety of cane tips which may be used interchangeably. The walking stick defines two heads, one on either end of the stick, both of which may accept any one of a variety of cane tips selected to provide support for a particular walking surface. The walking stick also defines a gripping surface that may employ longer-than-standard grips on both ends of the stick and a strap to accommodate securely holding the device.

Abstract: A quick folding structure for a post unit of a tent frame includes upper, middle and lower posts, an upper connector, and a lower connector. The upper connector is disposed between the upper and middle posts and includes a first upper connecting portion and a second upper connecting portion. The lower connector is disposed between the middle and lower posts and includes a first lower connecting portion and a second lower connecting portion. A wire rope has a first end secured to the first upper connecting portion and a second end connected to a pin. A spring and the pin are disposed in a ladder-shaped trough of the first lower connecting portion. Two ends of the spring engage with the ladder-shaped trough and a first end of the pin, respectively. A second end of the pin faces an engaging notch of the second lower connecting portion.

Abstract: An automatic folding tent includes at least a plurality of main brackets, auxiliary brackets, connecting rod groups, elevation devices, and a tent cloth. After the main brackets and the auxiliary brackets are pivoted, the connecting rod groups for supporting the auxiliary brackets to unfold are disposed between the main brackets and the auxiliary brackets. The auxiliary brackets are gathered at a top block, the elevation device is disposed on a top end of the main bracket and is power-connected to the connecting rod group, and the tent cloth is wrapped on top of the main brackets and the auxiliary brackets. Accordingly, the elevation devices are controlled to synchronously operate through a remote controller, so as to actuate the main brackets to ascend and descend, and to actuate the auxiliary brackets to unfold or fold, thereby automatically operating the tent to fold and unfold.

Abstract: An apparatus includes a first thermally conductive body having a plurality of fingers and a second thermally conductive body having a plurality of fingers. The first and second bodies are configured such that the fingers of the first body are interdigitated with the fingers of the second body. Each of a plurality of thermoelectric modules has a first major surface and an opposing second major surface. The first major surface of each thermoelectric module is in thermal contact with one of the fingers of the first body, and the second major surface is in thermal contact with one of the fingers of the second body.

Abstract: A Solar Irradiance Inductive Expeller for electro-dynamic radiant energy extracting, comprises an aggregated electro-magnetic structure and a technological method including: pulse-exciting coils, combined air ionizers, electrode non-magnetic structure, and combined transducers, multi-horn tuned receiving antennas, energy and control units, orientation devices, solenoid servos, frame elements. The Expeller operates multiple jolt-electro-inductive obtaining of solar energy carried by visible and near infrared spectra with efficiency up to 60% and more in prospective. The base sets placed inside closed cases, panel of sets, tracking module provide effective multiple treatment to the refracted and reflected beams of irradiance by oscillating electro-magnetic fluxes into several ionized zones of said cases. The estimate average energy ratio of electro-dynamic Expeller to static conventional Photovoltaic systems takes to 7.4.

Abstract: A nanotube-shaped titania having an aspect ratio of 6 or greater can be produced by anodizing a titanium metal or an alloy containing mainly titanium in an electrolyte solution containing a halogen atom-containing ion, such as a perchloric acid aqueous solution.

Abstract: A photovoltaic device module and a fabrication method thereof are disclosed. There are provided a solar cell module structure effective to prevent the performance of the overall module from being degraded when photoelectric conversion efficiency of a specific portion cell is degraded in a solar cell module in which solar cells are integrated, and a fabrication method thereof. More particularly, there are provided a module structure having two terminal wirings, in which one of them is formed by selecting and connecting at least two unit cells from a plurality of unit cells electrically connected and the other is formed by selecting and connecting at least two unit cells differentiated from the said selected unit cells., and a fabrication method thereof.

Abstract: Photovoltaic devices and methods of making photovoltaic devices are provided. The photovoltaic device comprises a plurality of solar cells electrically coupled to each other. The plurality of solar cells are formed of respective semiconductor material having different band gaps. Each solar cell includes a plurality of sub-junctions having a respective plurality of p-n junctions and at least one tunnel junction located between juxtaposed sub-junctions of the plurality of sub-junctions.

Abstract: Laminates of having a first outer layer of weatherable film, at least one mid layer, and a second outer layer containing an opacifying quantity of white pigment. The laminates are particularly useful for protecting photovoltaic cells, solar panels, and circuit boards. In photovoltaic cells, the laminates result in increased power generation.

Abstract: Most semiconductor devices manufactured today, have uniform dopant concentration, either in the lateral or vertical device active (and isolation) regions. By grading the dopant concentration, the performance in various semiconductor devices can be significantly improved. Performance improvements can be obtained in application specific areas like increase in frequency of operation for digital logic, various power MOSFET and IGBT ICS, improvement in refresh time for DRAM's, decrease in programming time for nonvolatile memory, better visual quality including pixel resolution and color sensitivity for imaging ICs, better sensitivity for varactors in tunable filters, higher drive capabilities for JFET's, and a host of other applications.

Abstract: System(s) and method(s) are provided for assembling and utilizing parabolic reflectors in a solar concentrator. Parabolic reflectors assembly starts with a low-cost, flat reflective material that is bent into a parabolic or through shape via a set of support ribs that are affixed in a support beam. The parabolic reflectors are mounted on a support frame in various panels or arrays to form a parabolic solar concentrator. Each parabolic reflector focuses light in a line segment pattern. Light beam pattern focused onto a receiver via the parabolic solar concentrator can be optimized. The receiver is attached to the support frame, opposite the parabolic reflector arrays, and includes a photovoltaic (PV) module and a heat harvesting element that enable dual-mode energy conversion operation. To increase performance of the parabolic solar concentrator, the PV module can be configured to advantageously exploit a light beam pattern optimization regardless irregularities in the pattern.

Abstract: A solar covering is disclosed that comprises a lens array configured to distribute light incident on the covering to solar receptors beneath the covering. The lens array may have a support structure covered by a continuous plastic sheet with Fresnel lens ribs or circular Fresnel elements or the lens array may comprise a number of Fresnel tiles. Each lens may concentrate light onto a solar receptor, such as a photovoltaic chip. The solar covering may go over new or existing photovoltaic panels such as on a solar cabana. A photovoltaic element may be movable to maintain the element in a concentration zone of a Fresnel lens and/or to control the power output of the photovoltaic element, such as in response to a signal from a power utility.

Abstract: The purpose of the invention is to provide a highly reliable photoelectric conversion device having flexibility and resistance to external stress. In the photoelectric conversion device, following are included: a first sealing layer and a second sealing layer that are provided to face each other; and a photoelectric conversion element group which is provided by being interposed between the first sealing layer and second sealing layer that are provided to face each other. The first sealing layer includes a first structure body in which a first fibrous body is impregnated with a first organic resin, the second sealing layer includes a second structure body in which a second fibrous body is impregnated with a second organic resin, and a periphery of the photoelectric conversion element group includes a region where the first sealing layer and second sealing layer that are provided to face each other are attached to each other.

Abstract: Deposition apparatus for uniformly forming material on a substrate in accordance with an exemplary embodiment is provided. The deposition apparatus includes an energy source, an electrode in a facing, spaced relationship with respect to the substrate, and interface structure joined to the electrode. The interface structure is configured to electrically couple energy from the energy source through and about the interface structure to the electrode for formation of a substantially uniform electric field between the electrode and a predetermined area of the substrate when the interface structure is supplied with energy from the energy source.

Abstract: A solar cell device includes a p-n diode component over a substrate, the p-n diode component including at least one subcell, each subcell including an n-type semiconductor layer and a p-type semiconductor layer to form a p-n junction. The solar cell device further includes at least two features selected from: i) a nano-structured region between at the p-n junction of at least one subcell; ii) an n-type and/or a p-type layer of at least one subcell that includes a built-in quasi-electric field; and iii) a photon reflector structure. Alternatively, the solar cell device includes at least two subcells, and further includes a nano-structured region at the p-n junction of at least one of the subcells, wherein the subcells of the solar cell device are connected in parallel to each other by the p-type or the n-type semiconductor layer of each subcell.

Abstract: A photovoltaic device and a method of making the photovoltaic device. The device includes a metallic surface defining a plurality of voids for confining surface plasmons. The metallic surface is coated with a semiconductor to form a Schottky region at an interface between the metallic surface and the semiconductor within each void.

Abstract: Example embodiments relate to a solar cell and a method for fabricating the same, and more particularly, to a solar cell in which a substrate capable of functioning as electrode is used and a method for fabricating the same. The solar cell may include a substrate and a semiconductor layer laminated on the substrate. The solar cell may include a conductive substrate. The substrate may be a flexible substrate having a coefficient of thermal expansion comparable to that of the semiconductor layer. The semiconductor layer may be formed on the substrate. The solar cell may include a front electrode formed on the semiconductor layer.

Abstract: A semiconductor or similar body used, for example, for a solar cell is examined for the physical locations of characteristics effecting its performance, such as grain boundaries, areas of relatively higher sheet resistance, bulk resistance, shortened carrier lifetime, etc. A grid array layout for conductive lines may be specifically tailored such it is positioned over less efficient photo-generative regions of the body to, for example, minimize shadowing of more efficient regions, provide a short conduction path for regions of shortened carrier lifetime, etc. The grid array layout may then be formed on the surface of the body, for example by a digital lithographic process, to accommodate cell-by-cell and/or body-by-body variations in the performance characteristics. The tailored grid array provides increased overall photo-generative efficiency of the completed solar cell.

Abstract: A solar cell module includes: a photoelectric conversion body 101 having an uneven surface on a light-entering surface; and a protection layer 10 made of a resin and provided to cover the uneven surface. In a cross section of the protection layer 10 taken in parallel to a light-entering direction, a thickness W2 of a projected portion on the uneven surface is smaller than a thickness W1 of a recessed portion on the uneven surface.

Abstract: Disclosed are solar cells and methods for making solar cells. An example solar cell may include an electron conductor layer. The solar cell may also include a hole conductor layer. An insulating layer may be disposed between the electron conductor layer and the hole conductor layer. The insulating layer may have a plurality of pores. Absorber material may be disposed at least partially within at least some of the plurality of pores.

Abstract: Ceramic materials with relatively high resistance to wetting by various liquids, such as water, are presented, along with articles made with these materials, methods for making these articles and materials, and methods for protecting articles using coatings made from these materials. One particular embodiment is an article that comprises a coating having a surface connected porosity content of up to about 5 percent by volume. The coating comprises a material that comprises a primary oxide and a secondary oxide, wherein (i) the primary oxide comprises a cation selected from the group consisting of cerium, praseodymium, terbium, and hafnium, and (ii) the secondary oxide comprises a cation selected from the group consisting of the rare earth elements, yttrium, and scandium. The material is transparent to electromagnetic radiation of at least one type selected from the group consisting of ultraviolet radiation, visible light, and infrared radiation.

Abstract: A laminated film comprising a porous semiconductor layer, a transparent conductive layer and a transparent plastic film, wherein the porous semiconductor layer comprises crystalline titanium oxide fibers and crystalline titanium oxide fine particles, the crystalline titanium oxide fibers and the crystalline titanium oxide fine particles are substantially composed of an anatase phase and a rutile phase, the anatase phase content ratio calculated from the integral intensity ratio of X-ray diffraction is between 1.00 and 0.32, and the laminated film is used in an electrode for dye-sensitized solar cells, and the electrode and a dye-sensitized solar cell comprising the same.

Abstract: A compact photovoltaic generation assembly exhibiting improved photovoltaic efficiency and an extended operating life as compared to conventional photovoltaic systems is described. The assembly can also include a power supply for use at times when light energy is not readily available.

Abstract: A method of producing a photo-voltaic device comprising the steps of: synthesising carbon nanotubes; adapting the synthesised carbon nanotubes to provide a surface defect such as to create an effective band gap; selecting an organic semiconductor material which facilitates the efficient energy transfer between carbon nanotubes and the organic material, wherein the organic material is selected such that the energy band gap formed between the HOMO and LUMO energy levels lies within the effective band gap of the adapted carbon nanotubes; combining the adapted carbon nanotubes and the selected organic material to form a composite material.

Abstract: The present invention relates to a solar cell in which semiconductor nanoparticles are surrounded by a photoactive surfactant material in the photoactive layer.

Abstract: A photovoltaic device with high photoelectric conversion efficiency includes an electron donating organic material for photovoltaic devices containing a conjugated polymer represented by formula (1): wherein R1 to R10 may be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an alkoxy group and an aryl group; R11 and R12 may be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group and halogen; W, X, Y and Z may be the same or different from each other and are each selected from the group consisting of a single bond, an arylene group, a heteroarylene group, an ethenylene group, and an ethynylene group; m is 0 or 1; n is within a range of 1 to 1000.