31results about How to "Guaranteed luminous flux" patented technology

According to one aspect of the present invention, an LED device comprises: a first light source unit provided with at least one first white LED and emitting white light having a first light temperature; a second light source unit provided with at least one second white LED and emitting white light having a second color temperature different from the first color temperature; and a variable resistor connected to at least one of the first and second light source units and adjusting a current provided to at least one of the first and second light source units.

The invention discloses a method for passivating the aberration of a conformal optical system based on wavefront coding. The method includes the following steps that: an odd-symmetry phase mask plate is additionally installed at the diaphragm of the conformal optical system; the wavefront of the optical system is modulated; a coded image is formed on a detector; and image decoding processing is performed on the coded image by means of a digital filtering means, so that a final clear image can be obtained. Since a wavefront coding technique is introduced, a larger focal depth can be realized with the luminous flux and imaging resolution of the conformal optical system ensured, and astigmatism, spherical aberration, chromatic aberration, and aberration caused by defocusing which is further caused by installation error and temperature change can be suppressed. The method of the invention is simple to operate. With the method adopted, under a condition that the complexity of the conformal optical system is not increased, aberration can be passivated, and image quality can be improved, and therefore, the capture performance and tracking precision of a seeker can be improved.

The invention discloses a method for extending a view field of an infrared optical system on the basis of wavefront coding. The method comprises the following steps that an odd symmetric phase mask plate is additionally arranged at a diaphragm of the infrared optical system, wavefront of the infrared optical system is modulated, a coded image is formed on a detector, decoding processing is conducted on the coded image through a digital filter means, and a final sharp image is obtained. By introducing a wavefront coding technique, the larger focal depth purpose can be achieved on the condition that the luminous flux and the imaging resolution of the infrared optical system are guaranteed, and meanwhile astigmatism, spherical aberration, chromatic aberration and aberration brought by defocus caused by installation errors and temperature changes can be inhibited. According to the method, operation is easy, and the view field of the system can be extended and the image quality can be improved on the condition that the complexity of the infrared optical system is not increased.

The invention discloses a single exposure high numerical aperture pulse laser coherent diffractive imaging apparatus and method. The apparatus herein includes a pulse laser 1, an attenuation sheet 2,a polarizer 3, a first lens 4, a diaphragm 5, a sample bench 6, a reflector group 7, a reflector 8 with a hole therein, a light beam collector 9 which are successively and coaxially disposed in the progressing direction of a light beam. The apparatus is provided with a second lens 10, and a liquid nitrogen cooling CCD image sensor 11 which are successively disposed in the progressing direction ofa reflection light beam of the reflector group 7. The reflector 8 with the hole therein is provided with a common CCD image sensor 12 in the progressing direction of the reflection light beam. The liquid nitrogen cooling CCD image sensor 11 and the common CCD image sensor 12 are both in connection to a computer 13. According to the invention, the apparatus herein can simultaneously acquire high angles and central diffraction light spots, and increases 3D reconstruction precision.

The invention relates to the technical field of a deep ultraviolet LED, and provides an inorganically-integrated deep ultraviolet LED package structure. The inorganically-integrated deep ultraviolet LED package structure comprises a ceramic substrate, an LED chip and a glass cover plate, wherein a metal support is fixedly arranged at the top of the ceramic substrate, a groove is formed in the topof the metal support, the LED chip is fixed in the groove, a wavelike clamping groove is annularly formed in an inner wall of the groove, a frame is hermetically clamped outside the glass cover plate,and a wavelike elastic clamping sheet is fixedly arranged at the top of the frame and is clamped into the wavelike clamping groove in a matching way. The inorganically-integrated deep ultraviolet LEDpackage structure is used for solving the problems of poor aging resistance, poor sealing performance, poor cooling effect and influence in service lifetime of the deep ultraviolet LED of an organicpackage structure in the prior art.

The present invention discloses a LED packing body and a manufacturing method thereof. The upper surface of a substrate is provided with a PET reflective film. The PET reflective film comprises a PETbase material and an aluminum-plated reflective layer arranged on the upper surface of the PET base material. A chip is arranged on the PET reflective film, the corrosion resistance of the aluminum-plated reflective layer is high than the corrosion resistance of a silver-plated reflective layer, and the anti-ultraviolet performance of the aluminum-plated reflective layer is stronger than the anti-ultraviolet performance of the silver-plated reflective layer. The PET base material has the advantages of low gas and water vapor permeability, good gas resistance, good water and oil resistance, good odor resistance, high transparency, capability of ultraviolet blocking and good brightness. Part of ultraviolet beams emitted by an ultraviolet LED chip are reflected to the aluminum-plated reflective layer of the PET reflective film via a light transmitting shell, so that the light loss is reduced, the blackening of a reflective zone of the substrate is avoided, and the LED light source luminous flux is ensured.

The invention provides a protection circuit for an LED light fixture. The protection circuit for an LED light fixture includes a temperature control protection circuit, a high voltage open circuit and an LED connection circuit, wherein the LED connection circuit is formed through series-parallel connection of LED chips; the temperature control protection circuit is arranged on an LED lamp panel, and comprises an LED driver chip U2, a thermistor NTC1 and an MOS transistor Q2; the high voltage open circuit includes a controllable precision stabilized power supply U1 and an MOS transistor Q1; the temperature of the LED lamp panel can be measured by the thermistor; the magnitude of the LED output current can be controlled through temperature variation; and the output power is suitably adjusted to reduce heat generation of LED so that the luminous flux and the service life of the LED can be guaranteed maximumly. When the input voltage of an external power supply VCC is greater than 36V and the potential of the reference electrode of the controllable precision stabilized power supply U1 is greater than 2.5V, the controllable precision stabilized power supply U1 is conducted and the MOS transistor Q1 is disconnected and the input high voltage is added to the MOS transistor Q1 so that high voltage protection is formed on other components in the circuit.

The invention relates to an intelligent mirror surface LED panel lamp. The intelligent mirror surface LED panel lamp comprises an outer frame, one-way vision glass, LED strip-shaped light sources, LED lamp beads, an aluminum substrate PCB, light guide plates, light reflecting paper, a module fixing plate, LED radar induction modules, an LED light induction module, a power source, a light sensation probe, an LED display module, a clock and a display screen. The intelligent mirror surface LED panel lamp achieves the function that when people pass by the intelligent mirror surface LED panel lamp, the radar induction modules are switched on, the LED display module operates, clock display, rolling caption display, self-programmed pattern display, video display and the like can be conducted, and the surfaces of four edges of the LED panel lamp are in mirror surface states and play a decorating role. When light is insufficient, the light sensation probe receives a signal, the light induction module is switched on, the radar induction modules are switched off, and the LED strip-shaped light sources are switched on to serve as main lighting. The intelligent mirror surface LED panel lamp has the advantages of emitting light uniformly, filling up a technical gap that an existing panel lamp does not have a displayable function, achieving more user-friendly operation effects, making use of the LED light sources, being lighter and thinner, saving more space and being long in service life.

The invention discloses a lens module for a monitoring a camera, which comprises a lens and an infrared breaker arranged on the lens, wherein the lens comprises a lens cover and a lens cone, the lens cone is provided with a through hole, the inner wall of the lens cone at the rear part of the through hole is extended to form a round platform with an inner hole, and the middle of the round platform is provided with n optical lens; and the infrared breaker comprises a movable device and a driving device, the movable device comprises a main body, a movable piece and an infrared edge filter, the main body is fixed in the lens cone and is provided with a fixing hole in front of the inner hole, the movable piece is hinged with the main body and is provided with a movable hole in front of the fixing hole, the infrared edge filter is fixed on the movable hole, and the output end of the driving device is connected with the movable piece. By adopting the monitoring camera disclosed by the invention to work at night, the infrared edge filter is taken away from the fixing hole, light can directly penetrate the fixing hole, the passing rate of the light can be 100%, thus the working effect is improved, the structure of the infrared breaker is simplified due to the arrangement of a single optical filter, the cost is lowered, and the performance stability is improved.

The invention discloses a light-heat collection type energy-saving building curtain wall, which comprises a hollow keel bracket fixedly installed on the outside of the building exterior wall, more than one installation cavity is equidistantly opened on the hollow keel bracket, and the outer ends of the bottom surface of the installation cavity are respectively opened A groove, an elastic connecting piece is put into the groove, and the other end of the elastic connecting piece is connected to a sealing frame, the outer side of the sealing frame is a glass curtain wall panel, and the inner side of the sealing frame is a photovoltaic power generation panel, which is sealed by the entire sealing frame Installation cavity: The building curtain wall structure of the present invention closes the installation cavity at night and uses it as an outer wall for heat preservation. During the day, the sealing frame can be opened to expose the light-emitting board power generation board, so as to expose a light-incoming cavity, so that the external light It can be injected into the room through the light inlet cavity to increase the luminous flux. At the same time, the reflective film layer can increase the power generation rate and increase the incident light, making the indoor brightness higher during the day.