70results about How to "Increase the amount of incident light" patented technology

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force, and both surfaces thereof are aspheric. At least a surface of the seventh lens has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

The invention relates to the field of solar cells, and discloses a heterojunction solar cell. The heterojunction solar cell comprises a silicon substrate, a first intrinsic layer, a second intrinsic layer, a first doped layer, a second doped layer, a first doped titanium oxide film layer, a second doped titanium oxide film layer, a first transparent conducting layer and a second transparent conducting layer, wherein the first doped titanium oxide film layer is arranged between the first doped layer and the first transparent conducting layer, and the second doped titanium oxide film layer is arranged between the second doped layer and the second transparent conducting layer. The invention further discloses a manufacturing method of the heterojunction solar cell. As the doped titanium oxide film layer is formed before forming each transparent conducting layer, open-circuit voltage of the cell can be increased, and the series resistance of the cell can be reduced.

The invention belongs to a construction technology, in particular to an active type natural light guide method and a device. The traditional building adopts a passive type natural lighting method, and the lighting quality is restricted by the position, the area, the size, the orientation and the like of a daylight opening. The active type natural light guide method guides sunlight into a building by the modes of collection, reflection, transmission and scattering. Two heliostats (1) and (2) which are arranged at the front and the back of a roof (7) of a building and can track the illumination angle of the sun collect the sunlight actively, and the sunlight is focused and irradiated to a reflecting mirror (3); and light rays are irradiated to a skylight (4) by the reflecting mirror (3), pass through a diffusing panel (5), are scattered and enter an atrium (6) of the building. The invention has the advantages of prolonging the sunshine time in the building, enhancing the lighting illumination in the building, enhancing the comfort level of a luminous environment in the building and providing conditions for the growth of green plants in the areas of the atrium and a patio in the building.

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. At least one lens among the first to the fifth lenses has positive refractive force. The fifth lens can have negative refractive force. The lenses in the optical image capturing system which have refractive power include the first to the fifth lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

A photovoltaic module is provided. A light absorbing array layer is arranged on a first surface, so that when the same incident light is irradiated on the first substrate, the incident light refractedto the first substrate by the light absorbing array lay is much larger than the light refracted to the first substrate when the light absorbing array layer is not provided. By providing the light-absorbing array layer on the first surface, the amount of incident light entering the first substrate can be increased, so that natural sunlight can be fully utilized. At the same time, the incident light can be refracted bilaterally by a plurality of spaced-apart convex structures, and a portion of the reflected light can also be refracted into the first substrate, so that more incident light entersthe solar cell panel. Therefore, by providing a plurality of convex structures arranged at intervals on the first surface of the first substrate, the incident light amount of the solar cell panel canbe increased, the light loss can be effectively reduced, and the output power of the photovoltaic module can be increased.

A light receiving optical system includes: a relay optical system for converging light to be measured which has been converged on an image plane of an objective optical system on a view angle defining aperture for incidence through the view angle defining aperture. The light receiving optical system has the relay optical system with a relay lens operable to be selectively switched between a first and a second conjugated positions, and a first and a second light flux limiting aperture members disposed in proximity to the relay lens in the case where the relay lens is selectively switched between the first and the second conjugated positions. The relay optical system selectively forms, on the image plane of the objective optical system, an enlarged image and a reduced image of the view angle defining aperture in the case where the relay lens is selectively switched between the first and the second conjugated positions to define an incident light flux through the view angle defining aperture by a first and a second light flux limiting apertures, respectively, in the case where the relay lens is selectively switched between the first and the second conjugated positions. A spectrophotometer has the light receiving optical system.

The invention discloses a three-piece optical lens for capturing image and a five-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens with positive refractive power; a second lens with refractive power; and a third lens with refractive power; and at least one of the image-side surface and object-side surface of each of the three lens elements are aspheric. The optical lens can increase aperture value and improve the imaging quality for use in compact cameras.

The invention provides a lighting effect enhancing device of a solar cell, which comprises a solar cell panel and a plane mirror, wherein the plane mirror is arranged on the edge of the solar cell panel, and an obtuse angle is formed between the upper surface of the plane mirror and the upper surface of the solar cell panel. By applying the scheme, lower cost can be adopted, electric energy output by the solar cell panel is increased, and the lighting effect enhancing device is easily implemented.