32results about How to "No light loss" patented technology

The invention relates to a lens for a linear light source. The lens is provided with a top portion and a bottom portion, wherein the bottom portion comprises an incidence plane (1) and a first bearing surface (4a) and a second bearing surface (4b) positioned on two sides of the incidence plane (1), and the top portion comprises an emergent surface (2) and a total internal reflection surface (3). Viewed from a cross section, the emergent surface (2) is connected to the first bearing surface (4a), the total internal reflection surface (3) is connected to the second bearing surface (4b), one part of light rays of the linear light source is emitted onto the incidence plane (1) and emitted out after being reflected via the emergent surface (2), and the other part of the light rays is emitted onto the incidence plane (1) and emitted out via the emergent surface (2) after the total internal reflection by the total internal reflection surface (3). In addition, the invention further relates to an asymmetric light distribution lighting device comprising the lens.

The invention provides a composite transparent fluorescent ceramic chip and preparing method for white LEDs, the composite transparent fluorescent ceramic chip is the integral structure of two or more small ceramic units connected in the cross section, the small ceramic unit is a light pixel, the light color of the each lighting pixel is more than two, after being excited by the LED chip, the composite transparent fluorescent ceramic chip emits white light. Compared with the existing technology, the different lighting pixel points are compound on the same ceramic chip according to the principle that the three base colors of red light, blue light and green light are mixed into white light, the problem of uneven dispersion of phosphor particles in organic materials, the scattering of surface light and the loss of red components, and the like are overcome, the technical scheme has the advantages of high conversation efficiency, high color index, long life, good heat stability and adjustable color temperature.

The invention discloses a projection imaging method and system based on red, green and blue LED light sources, belonging to the field of optical projection imaging. The method comprises the following steps of: forming a three-color rectangular primary color light beam by using a red LED light source module, a green LED light source module and a blue LED light source module; respectively and directly radiating a three-color LCD liquid crystal imaging plate to form a three-primary-color imaging light beam by using the three-color rectangular primary color light beam; and synthesizing the three-primary-color imaging light beam into colored imaging light rays through a three-primary-color light synthesizing module, and projecting and imaging through an imaging lens module. All LED light rays are converged at a center of a sphere to form a high-brightness convergent point light source by using the geometrical theory that the diameter of the sphere passes through the center of the sphere and the crown concave surface of the sphere as a base plate of the LED light source modules, and the technical problem of short-distance convergence of an LED matrix light source is solved. Compared with the prior art, a projector manufactured with the method has the characteristics of low color temperature, small quantity of infrared rays and ultraviolet rays, no damageable parts such as electrodes, filaments and the like, no light loss caused by a spectroscope, high brightness, long service life and the like.

The invention is a thermosensitive resistance heating device, and its character: two sides of the thermosensitive resistance piece are connected with two electrode plates, which are connected with power supply, there is insulating layer in each electrode, and the insulating layer is packaged by metallic sealing pipe, one outer side of which is connected with a cooler, and the other one connected with an energy storage body. When acting as room heating electric radiator, it has no light loss, high thermal efficiency, remarkable saving energy effect, and when adopting room skirting board mode for disposition, it occupies a little space and simple to install.

Provided is a three-dimensional image capturing lens system having a structure in which left and right image sensing lenses are provided, and light is synthesized to form an image on a single CCD (charge-coupled device) in order to prevent loss of light intensity.

The invention aims to provide a waterproof and foldable convection type warmer with a small volume, small energy consumption, a good security property, a large warming area, a fast heating speed, no oxygen consumption and no light consumption in a heating process, and high heat efficiency. The waterproof and foldable convection type warmer comprises a casing, a heating wire, an air outlet, a power knob and bottom feet below the casing. The casing comprises a front casing and a rear casing, wherein the front casing is connected with the rear casing through a folding bar, and the folding bar consists of an annular buckle, a shaft and a connection point. The front casing is provided with a left stand column, and the rear casing is provided with a right stand column. The air outlet is arranged above the front casing and is composed of a plurality of rectangular air outlet grids. The heating wire is located at the lower part of the front casing. A protection cover is arranged at the right side of the left stand column of the front casing, and the power knob is arranged in the protection cover, passes through the left stand column and protrudes on the left side of the left stand column.

The invention provides an LED (light-emitting diode) high pole street lamp, comprising a housing, LED light-emitting modules, secondary optical lens modules, a hinge mounting head, a connecting rod, a fastening hinge and a lithium battery, wherein the housing is a straightly grooved aluminum alloy housing, and each LED light-emitting module comprises an LED light source assembly; the straight groove face of the housing is a light-emitting face, and the LED light source assemblies are fixedly arranged on the light-emitting face in an array; the secondary optical lens modules are arranged on the peripheries of the LED light source assemblies, and the hinge mounting head is fixedly arranged at one end of the housing and is connected with the fastening hinge through the connecting rod; the lithium battery is connected with the LED light-emitting module. According to the LED high pole street lamp provided by the invention, the conversion efficiency and utilization ratio of a light source are fully improved, so that the power consumption of the product is lower than that of similar products; the characteristics of good heat dissipation, low wind resistance, strong wind resistance, light weight and the like are structurally achieved, and the street lamp can be combined and used more flexibly and reliably.

The invention relates to a PTC water heater (one or more water liners) and relates to technical field of water heaters. The upper water liner and the lower water liner are arranged in a shell; a water liner connecting pipe is arranged between the upper water liner and the lower water liner; heat preservation layers are arranged between the upper water liner and the shell as well as between the upper water liner and the shell; a left end shell body and a right end shell body are arranged on the left side and the right side of the shell; a PTC controller is arranged on the right end shell body; a water level sensor and a temperature sensor are arranged in the upper water liner; a hot water outlet, a sewage draining outlet and a cold water inlet are formed in the bottom end of the lower water linear; a PTC heating device and a circulating pump are fixed to an ABS plastic piece on the right side; and the upper water liner and the lower water liner are connected through a stainless steel corrugated pipe, and the PTC heating device and the circulating pump are connected through a stainless steel corrugated pipe. The PTC water heater (one or more water liners) has the advantages of being high in heat efficiency, low in power consumption, high in temperature increasing speed, free of light consumption and open fire, long in service life and convenient to mount and use.

The invention relates to a low-power LED lamp bead which comprises an LED luminous chip. The LED luminous chip is located at the center of a lens and the internal center of a shell through a support and connected with pins. The lens is a double-end semi-permeable mirror, is in a semi-hump shape, and is integrated with the shell. The lens is oval when overlooked. The photometric characteristic of the LED lamp bead can be corrected and improved, a road surface can be more even, it is guaranteed that the illumination can not be substantially attenuated, the requirement for a photometric curve required by the national roadway lighting standard can be met, and the effective utilization rate of light can be increased. The lighting efficiency of an LED street lamp and a tunnel lamp can be improved, and the electricity consumption of the LED street lamp and the tunnel lamp can be reduced.

The invention relates to a warming device, in particular to an electric hot-water warmer. A PTC (positive temperature coefficient) heater is used to heat circulating water, hot water radiates through a radiator, and heat cycles rapidly under the condition of the strong blowing of a fan. The heat efficiency is far higher than that of natural convection radiation of the conventional radiator, and the radiation efficiency is high.