46results about How to "Increase projection brightness" patented technology

A display panel with integrated micro-reflectors. The display panel also includes an array of pixel light sources (e.g., micro-LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The micro-LEDs produce light and the micro-reflectors reduce the divergence of the light produced by the micro-LEDs. Different designs are possible. The micro-reflectors can have different shapes, include the shape of their sidewalls and the shape of their plan cross-section. The array schemes can also vary, including the number of LEDs per micro-reflector. Different fabrication approaches are also possible. In one approach, a support structure is integrated between micro-LEDs. The sides of the support structure are reflective and serve as the reflective sidewalls of the micro-reflector. Alternately, the LED mesa itself can serve as the support structure.

The invention relates to a projection engine module of a single imaging device, which comprises: a light source, a reflective polarization modulation imaging device, a reflective quarter-wavelength compound sheet, a projection lens system and a polarized beam light splitter module; the polarized beam light splitter module consists of a first polarized beam light splitter film layer and a second polarized beam light splitter film layer arranged in a V-shape incision structure in a pair. Illumination light of the first polarized state is reflected by the first polarized beam light splitter film layer to the reflective polarization modulation imaging device; meanwhile, the second polarized beam light splitter film layer and the reflective quarter-wavelength compound sheet are linked; illumination light of the second polarized state passing through the first polarized beam light splitter film layer is converted into the first polarized state; and the converted light is reflected to the reflective polarization modulation imaging device. After modulated, polarized, rotated, and reflected by the reflective polarization modulation imaging device, the combined illuminating light recurs to the polarized beam light splitter module, and is projected through the projection lens system. The projection engine module of a single imaging device can effectively improve light utilization efficiency.

The embodiment of the invention relates to the technical field of multi-optical-machine projection, and particularly discloses a correction method and device for a multi-optical-machine projection image, a multi-optical-machine projector and a readable storage medium. The method comprises the steps: acquiring a projection picture area of each optical machine; calculating coordinates of four angular points of an overlapping region of projection picture regions of all optical machines and a projection picture conversion relational expression of each optical machine; reversely converting the coordinates of the four angular points of the overlapping area to the projection coordinates of each optical machine to adjust the projection coordinates of each optical machine, so the projection imagesof the multiple optical machines can completely coincide with the projection images of the multiple optical machines, the projection brightness is improved, the assembly precision requirement of the projector with the multiple optical machines is not high, and the projector is suitable for wide popularization.

The invention relates to a laser teaching interaction system which comprises a laser projector, a projecting screen, a laser emitter, a camera device and a computer, a signal output device of the camera device is connected with a signal input device of the computer, a signal output device of the computer is connected with a signal input device of the laser projector, the laser projector projects an output image of the computer to the projecting screen, the camera device receives the projecting image on the projecting screen and transmits the projecting image to the computer, the computer maps the position coordinates on the projecting screen and the computer screen coordinates and can control a computer cursor to move to the corresponding position of a projecting light spot image of the laser emitter on the projecting image. The computer can set and control the projecting image. The laser teaching interaction system is suitable for teaching in classrooms, industrial buildings, laboratories, stages and other scenes.

The invention relates to a projection equipment control method and device, a medium and electronic equipment. A projection light source of the projection equipment comprises red light, green light, blue light and additional light for improving the projection brightness of the projection equipment. The method comprises the following steps: acquiring a target chromaticity coordinate of a projectionlight source in response to a received projection instruction; determining a gain coefficient of an RGB channel in the projection equipment according to the target chromaticity coordinate and a pre-constructed color lookup table; and adjusting the gain of the RGB channel according to the gain coefficient. Thus, the gain coefficient of the RGB channel can be quickly and directly determined according to the target chromaticity coordinate and the pre-constructed color lookup table, so that the gain of the RGB channel is automatically adjusted according to the gain coefficient, the effect of automatically adjusting the color temperature of the projection equipment in place at a time is achieved, and the impression experience of users is improved.

The invention relates to a light source system and a projection device. The projection device comprises the light source system. The light source system comprises a primary optical axis, a light source, a wheel body, an optical device, a first wavelength converter and a first angle selecting layer. The light source can provide a light beam to advance along the primary optical axis. The wheel body can rotate according to control. The optical device is provided with a first lens, a second lens and a third lens which are sequentially arranged between the light source and the wheel body along the primary optical axis to gather the light beam to a focusing position on the wheel body. The first wavelength converter is arranged on the wheel body for receiving and converting the light beam into a first waveband light. The first angle selecting layer selectively filters and passes the first waveband light at an angle and is arranged on the first wavelength converter. The first wavelength converter is positioned between the light source and the first angle selecting layer.

The invention discloses a multi-light-source projector. The multi-light-source projector comprises a shell, wherein one side of the shell is respectively provided with an infrared receiver, a projection lens and a ventilating hole; a cooling fan is arranged inside the ventilating hole; a mounting support and a locker are respectively arranged on the other side of the shell; a slot is formed in the mounting support and corresponds to a latch of the locker; an LED driver and a laser driver are respectively arranged on the mounting support; a red LED light source, a green LED light source and a blue LED light source are respectively arranged on the LED driver; and a laser lamp is arranged on the laser driver. The multi-light-source projector is provided with the red LED light source, the green LED light source, the blue LED light source and the laser lamp, the laser lamp is the main light source, colors of the laser lamp are supplemented by the three-color light sources, projection brightness is improved, and meanwhile, projection colors are saturated and full. The light sources of the multi-light-source projector are arranged on the mounting support, and are matched with one another through the locker and the slot of the mounting support, and therefore, the purpose of quickly mounting and dismounting the light sources is achieved.

The invention is applicable to the field of projection and provides a double-lamp illumination device and projection equipment. The double-lamp illumination device comprises two white light sources which are arranged in parallel, wherein a color wheel is arranged on an output light path of each of the two white light sources; the two color wheels have the same structure and synchronously rotate; and a light equalization system which can directly receive emergent light from the color wheels is arranged on the output light paths of the two color wheels. By the double-lamp illumination device, the light emitted from the two light sources is coupled to the light equalization system in a non-overlapped mode in different spaces, the interference loss generated by coupling two beams of light in the same narrow space is avoided, the problem that the light rays cannot fully enter an extremely small light entrance is solved, and the utilization rate of light energy is improved, so that the projection brightness is improved; and moreover, the light penetrating through the color wheels is not required to be strictly focused at the light entrance of the light equalization system, the positions of the first light source and the second light source are not strictly limited, and the thermal design of the device is improved.

The invention relates to a double-lens split-screen light splitting optical path which comprises a chip, a prism, an image transferring lens, a main lens, a split-screen reflector, a steering reflector and an auxiliary lens. The image transferring lens is added at the light emitting position of the prism, an effective display area of a chip is imaged in air on the other side of the image transferring lens, a reflecting mirror is used near the position of a real image to reflect one part of the real image into a light path of a second lens, a screen splitting effect is achieved, and other lightrays pass through the first imaging lens according to an original light path. The chip can realize the overlapping of two scenes at the screen only by displaying respective contents in the corresponding areas, thereby being beneficial to improving the final projection brightness, reducing the cost of optical and electronic components, canceling a polarization modulation optical path, and being small in size and easy for mass production.

The projector comprises a light source module, a polarization beam splitting module and a projection lens. The polarization beam splitting module, which is arranged to be right opposite to the light source module, is used for receiving lights emitted by the light source module. The polarization beam splitting module comprises a set of polarized beam splitters (PBS) and an LCOS panel; and each of the PBS is formed by two isosceles right-angle prisms, wherein a polarization plane is formed between the two contact surfaces; besides, each of the PBS also includes: a light incidence plane, which is opposite to the light source module; a first surface, which is opposite to the light incidence plane; a reflection plane; and a light emission plane, which is opposite to the reflection plane. The LCOS panel is arranged on the reflection plane. In addition, the projector also includes a reflection apparatus. The reflection apparatus is arranged on the first surface of the PBS and is used for reflecting a polarized light that is transmitted from the polarization plane of the PBS to the projection lens. According to the invention, the projector enables a P polarized light to be utilized, so that a light utilization rate is improved and projection brightness is also enhanced.

The invention relates to the technical field of projection equipment, and discloses an intelligent projector for English teaching. According to the invention, a threaded hole is formed in the position, below a resistance rod, of one side of an outer frame, the threaded hole is connected with a lead screw in a sleeving manner through threads, the projector comprises a shell, and a mercury lamp is fixedly mounted in the middle of one side of an inner cavity of the shell; a power machine is controlled to rotate so as to drive a stroke device to rotate, and due to the fact that the threaded hole and the lead screw are connected in a sleeved mode in a threaded fit mode, the threaded hole can move in the axis direction of the lead screw while the lead screw rotates, and therefore the distance between the display device and the light chamber is changed. The light of the mercury lamp enters the light chamber in a divergent manner and is projected to one side of the display device, so that the intensity of the light projected to one side of the display device is changed by changing the distance between the display device and the light chamber, and the projection brightness can be adjusted by the projector in a relatively simple manner. The complexity of the projector is reduced.

The invention discloses an active refrigeration type fully enclosed single-chip LCD projector. The projector includes a cover body and at least one electric refrigeration component, wherein one enclosed space is formed by the cover body and is at least internally accommodated with an optical assembly, a gas circulation path is formed in the enclosed space, the optical assembly includes an LCD screen, the gas in the enclosed space can flow through the LCD screen along the gas circulation path, the electric refrigeration component is embedded and fixed on a cover wall of the cover body, a cold side faces inward, and a hot side is exposed to the outside. The projector is advantaged in that through setting the enclosed space which is formed by the cover body and is used for accommodating the optical assembly, dust is prevented from entering the optical assembly, the electric refrigeration component is arranged on the cover wall, the electric refrigeration component can actively achieve refrigeration to move heat of its cold surface to a hot end to dissipate to the outside of the cover body, heat dissipation efficiency is high, that the LCD screen can work at lower temperatures is guaranteed, and thereby the projector can be made to have high projection brightness.

A prompt device of digital data is prepared as emitting light by illumination unit and using lens set to send light to projection surface of object to be projected, setting image pick-up camera lens at one side of image sensing element, adjusting light to forward along reflection direction of object to be projected to let light enter into image sensing element through image pick-up camera lens by the first light deviation unit.

The invention relates to a double-lens time-division light-division light path which comprises a chip, a prism, an image transferring lens, a first lens, a light-splitting reflector, a steering reflector, a second lens and a time-division switching device. The prism is used for separating an illumination light path from an imaging light path in an emergent light beam of the chip; the image transferring lens is an imaging lens and is used for converting the chip display area of the entity into a real image surface of the light path in the air; the first lens is used for imaging the real image surface again; the light-splitting reflector is used for reflecting the real image surface to form a light-splitting real image surface symmetrical about the reflecting surface, and the light-splittingreal image surface enters the second lens after passing through the steering reflector; the time-division switching device is used for moving the light splitting reflector so as to switch imaging onthe first lens and the second lens; through the time-division alternate display, the overlapping of two scenes is realized at the screen, an AR scene or a 3D scene is created, the final projection brightness can be improved, the cost of optical and electronic components is reduced by using a single chip, a polarization modulation light path is canceled, the size is small, and the volume productionis easy.

The invention discloses a preparation method of a transparent holographic film and the transparent holographic film, the preparation method comprises the following steps: processing a plurality of strip-shaped bulges on a mold roller, and arranging every two adjacent strip-shaped bulges at a preset distance in parallel to form a forming mold, wherein the cross section of each strip-shaped bulge istrapezoidal; uniformly coating UV glue on the first PET base film; transferring the strip-shaped protrusions to a first PET base film through adoption of a photocuring UV transfer printing method, sothat an optical structure layer is formed on the first PET base film; spraying UV transfer adhesive particles with a preset thickness on the optical structure layer to form a matte surface; uniformlycoating a pressure-sensitive adhesive with a preset thickness on the second PET base film to form a pressure-sensitive adhesive layer; and attaching the pressure-sensitive adhesive layer to the optical mechanism layer, so that a plurality of hollow trapezoidal structures are formed between the pressure-sensitive adhesive layer and the optical mechanism layer. The transparent holographic film is visually transparent in an unused state, and is high in projection brightness and clear in projection effect in a projection state.

The invention discloses an interactive advertising system. The interactive advertising system comprises a panel, an infrared touch module, a PC, a projector and a moving box, wherein the panel comprises a substrate and projection film, the projection film is attached to the back face of the substrate, the substrate is made from tempered glass or organic glass, the substrate is embedded into a building wall window, or the substrate is a movable substrate, the infrared touch module comprises a main board and two infrared cameras connected to the main board, the two infrared cameras are arrangedon the upper left and upper right of the substrate, reflection strips are pasted on a frame of the panel or the inner side of the building wall window, the infrared cameras are aligned with the reflection strips, the PC and the projector are placed in the moving box, the moving box is located on the back of the substrate, the projector projects to the projection film, an HDMI data cable of the projector is connected with the PC, and the PC is connected with the main board of the infrared touch module. The interactive advertising system has the advantages that the cost is lower, the installation is simple, the environmental disturbance is small, and the interactive advertising system has a rainproof function.

The invention discloses a light path sealing device for a digital projector and a light path system thereof. The light path sealing device includes a fixing member penetrating through a through hole and further includes a first annular adjusting member, a second annular adjusting member, a first annular elastic member and a second annular elastic member, wherein one end of the first annular adjusting member is inserted into the through hole through one end of a fixing member, one end of the second annular adjusting member is sleeved at an outer side wall of the other end of the fixing member,the first annular elastic member is arranged at the other end of the first annular adjusting member and protrudes out of an end surface of the first annular adjusting member, the second annular elastic member is arranged at the other end of the second annular adjusting member and protrudes out of an end surface of the second annular adjusting member, and the first fixing member, the first annularadjusting member and an inner side wall of the second annular adjusting member are respectively covered by extinction coating. The sealing device is advantaged in that the sealing device can prevent dust from being deposited on a light source lens and a light rod in a light pipe and can further avoid reflection interference.