5results about How to "Increase light output" patented technology

The utility model belongs to the field of projection, and particularly relates to a mixed light source device and a projection device.The mixed light source device comprises a blue laser, a diffusion plate, a dichroic mirror, a 1 / 4 wavelength plate, a first lens assembly, a reflection diffusion plate and a wavelength conversion device; after passing through the 1 / 4 wavelength plate and the first lens assembly, the blue P polarized light is reflected by the reflection diffusion plate and then sequentially passes through the first lens assembly and the 1 / 4 wavelength plate to be converted into diffused second blue S polarized light, and the wavelength conversion device converts the first blue S polarized light into green light; the LED lamp further comprises a red LED light source and a color combination device. The red LED light source emits red light. And the color combining device transmits the green light and the second blue S polarized light reflected by the dichroic mirror, reflects the red light, converges the green light, the second blue S polarized light and the red light, and uniformly transmits the converged light out. According to the technical scheme, the cost of the mixed light source device is reduced, the size is reduced, and meanwhile high brightness is achieved.

The invention relates to a large-aperture projection lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially arranged along the direction of an optical axis, and is characterized in that the first lens, the fourth lens, the fifth lens, the seventh lens and the eighth lens have positive focal power; the second lens, the third lens and the sixth lens have negative focal power, and the sixth lens and the seventh lens are doublet lenses and have positive focal power; by reasonably setting the focal length and the entrance pupil diameter of the lens, the lens has the characteristics of large aperture, small size and low cost, does not defocus under the environmental condition of large temperature difference, and is stable in working performance, high in projection quality and wide in application range.

The invention discloses an LED receiving system convenient to expand, and the system shows a new LED receiving system expansion mode, the system comprises a plurality of LED receiving cards, and the LED receiving cards are in communication and power supply connection in a floating connector hard connection mode; the LED modules and the LED receiving card are in communication and power supply connection in a PCB welding mode. According to the system, the expansion mode of the LED receiving card is changed and is different from a flat cable connection mode, so that the problems that the whole product is thick and heavy and is not convenient to assemble are greatly improved, and the installation difficulty and cost are greatly reduced.

The utility model discloses an LED (light-emitting diode) ceramic light source with a compact structure. The LED ceramic light source comprises a base, and a power supply module, an LED light-emitting plate, a lens assembly and a light-transmitting cover which are arranged on the base, the LED light-emitting plate comprises a ceramic substrate and a plurality of LED lamp beads which are evenly distributed on the ceramic substrate at intervals in an array mode or a radial mode. The light-transmitting cover is coaxially installed on the upper end face of the ceramic substrate through a fastener. An annular leakage-proof groove is formed in the peripheral edge of the upper end face of the ceramic substrate, a sealing convex ring matched with the leakage-proof groove is arranged on the end face of the bottom of the light-transmitting cover, and the sealing convex ring extends into the leakage-proof groove in a matched mode and is limited; the LED lamp beads are directly integrated on the ceramic substrate in a welding mode and the like, the structure is simplified, the thin design of the light source structure is achieved, the annular leakage-proof groove is formed in the upper end of the ceramic substrate, and the groove is precisely matched with the sealing convex ring at the bottom of the light-transmitting cover to form an effective sealing device. And the problem of light leakage caused by gaps or assembly errors is prevented.

The application discloses a defect compensation method and device of a display panel, electronic equipment and a storage medium, and the method comprises the following steps: acquiring a plurality of light-emitting luminances of a plurality of light-emitting pixels in each pixel region of the display panel, wherein the pixel region comprises at least four light-emitting pixels; sorting the luminance values of the plurality of light-emitting luminances to obtain three main light-emitting luminances with larger luminance values and a supplementary light-emitting luminance with the smallest luminance value; performing defect correction on the three main light-emitting luminances to obtain three main light-emitting luminances after defect correction, and performing luminance compensation on the main light-emitting luminance with the smallest luminance value after defect correction based on the supplementary light-emitting luminance to obtain three target light-emitting luminances; re-sorting the luminance values of the three target light-emitting luminances, and performing white balance correction on the three target light-emitting luminances based on the minimum value of the target light-emitting luminances to obtain the white light output luminance of the pixel region; and maximizing the three target light-emitting luminances as much as possible to increase the white light output luminance.