10 results about "Magnified projection" patented technology

The invention discloses a multipurpose surgical retractor assembly integrating illumination and image acquisition functions, and belongs to the technical field of surgical instruments. A multipurpose surgical retractor assembly integrating lighting and image collecting functions comprises a retractor working part, a retractor body connecting part and an operating handle part, a lamp body is fixed to the retractor body connecting part, a light source and a composite lens are arranged in the lamp body, the light source is an LED assembly, and the composite lens is a light-emitting diode (LED) assembly. The LED chips can be adjusted according to operation requirements to change the color and color temperature of mixed light so as to be suitable for illumination of different tissues, the outer edge of the composite lens is a concave lens, the center of the composite lens is a convex lens, the convex lens is arranged on the same axis, and an image sensor is arranged on one side of the convex lens. Uniform illumination can be achieved, the illumination range is expanded, and an operation area image is collected and amplified to be projected to a display screen. The invention aims to provide the surgical retractor assembly which has illumination and image acquisition functions and is light and convenient, so that the number of instruments required to be used in a surgery is reduced, and the surgical efficiency and accuracy are improved.

The utility model relates to display technical field, concretely is a kind of energy-saving intelligent hundred-inch large screen display device, the utility model is enlarged by the magnification principle of concave mirror, and light source is enlarged projection by optical design, avoid the overhigh energy consumption needed by entity screen, and the high level energy consumption caused by the high brightness of environmental influence and use requirement, can reduce the high energy consumption of traditional utilization television or projector to realize large screen to about one tenth, projection image still can keep clear and stable, and through three circuit boards respectively control screen, loudspeaker, key and peripheral equipment, and CPU operation android can freely match different application compatibility, provide greater technical guarantee for the energy saving, economy of display field.

The invention provides an exposure method and system and a liquid crystal low-frequency aberration compensation element processing method thereof. The method comprises the following steps: acquiring a target low-frequency aberration phase diagram of a device to be compensated; converting the target low-frequency aberration phase diagram into a plurality of corresponding low-frequency phase projection drawings; wherein the plurality of low-frequency phase projection drawings are in one-to-one correspondence with order phase drawings corresponding to the target low-frequency aberration phase diagram; an exposure system constructed by a numerical control micromirror DMD unit is controlled, and each low-frequency phase projection drawing is adopted to carry out amplification projection exposure on the orientation layer; after all the low-frequency phase projection drawings are amplified, projected and exposed, an orientation layer with orientation completed is obtained; wherein the orientated orientation layer is used for processing and producing the liquid crystal low-frequency aberration compensation element corresponding to the to-be-compensated device, and compared with a traditional DMD system with reduced magnification exposure, the time consumption is shorter, compared with other processing methods, the cost is low, the phase can be changed as required, and the flexibility is high.

The present invention realizes a projector that can prevent the degradation of optical performance caused by changes in the shape of the reflective surface due to localized high temperatures of the projector's reflector. It includes an image display unit and an imaging optical system that magnifies and projects the image displayed by the image forming section of the image display unit onto a projection surface. The imaging optical system includes: a lens system (LS) to which image light from the image forming section is incident; a synthetic resin reflector (M) disposed on the magnifying side of its aperture stop (S) and having refractive power; and an image correction control unit (4) that corrects for degradation of the magnified image caused by uneven temperature rise of the reflector (M) due to the intensity distribution of the imaging beam.

The invention provides a projector capable of preventing deterioration of optical performance caused by a change in the shape of a reflecting surface due to local high temperature of a reflector of the projector. An imaging optical system having an image display element and an image displayed by an image forming unit of the image display element, the imaging optical system having: a lens system (LS) on which image light from the image forming unit is incident; and a synthetic resin mirror (M) that is disposed on the enlargement side of the aperture stop (S) and has refractive power, and the projector has: a thermistor (21) that detects the temperature of a predetermined position on the reflection surface of the mirror on the back side of the reflection surface; a cooling unit that includes a Peltier element (22) and heat transfer members (11-13) and cools an area region including a predetermined position; and a control means (30) for constantly controlling the cooling of the area region by the cooling means on the basis of the temperature detection by the thermistor.

The utility model relates to the field of table lamps, in particular to a table lamp with a projection function, which comprises a lamp holder and a lamp cap. The lamp cap is mounted on the lamp holder; the lamp holder comprises a lampshade shell and a light-emitting element. The light-emitting element is located in the lampshade shell. The lamp holder further comprises a projection LED which is provided with a light-transmitting pattern block used for projecting a projection pattern marking the optimal illumination area, a condensing lens used for gathering light emitted by the projection LED and a magnifying lens used for magnifying the projection pattern. The projection LED, the light-transmitting pattern block, the condensing lens and the magnifying lens are coaxially arranged; a whole formed by the projection LED, the light-transmitting pattern block, the condensing lens and the amplifying lens is installed on the lamp holder. The projection table lamp has the advantages that the projection function is achieved, and patterns can be projected on a table top so as to indicate the optimal lighting area. A user can clearly know the position of the optimal lighting area, and better experience feeling is brought.

The utility model discloses amplification projection equipment for handwriting identification, which is applied to the technical field of handwriting identification projection, and is characterized in that an identification object is slightly inclined, one side of the identification object is propped against a clamping plate, and then the identification object is moved to enable the clamping plate at the propped part to drive a positioning rod to move, so that after a spring is compressed and moved to a certain position, the positioning rod is fixed; the method comprises the following steps of: keeping an identified object level and enabling the other side of the identified object to abut against the other clamping plate, so that the identified objects with different sizes can be conveniently clamped and fixed, then moving an L-shaped rod to lift along a connecting rod, so that a camera can be far away from or close to the identified object, the shooting definition of the camera is improved, and finally starting a motor to move the camera. And through the lifting adjusting mechanism, the height and angle of the projector can be adjusted, and the projector is convenient to use.

The invention relates to the field of medical auxiliary instruments, in particular to an auricular point bean burying device and a using method thereof. The device comprises a projection part, a slide and an auricular point bean burying assembly. The projection part amplifies and projects the auricular point pattern printed on the slide to the ear through a projection lamp and a convex lens in the projection part, and visual positioning guidance is provided. The auricular point bean burying assembly is hinged to the projection part through the rotating part, an acupoint detecting ball and a tweezers wall structure are integrated, the acupoint detecting ball is used for accurate touch pressing and positioning, and the tweezers wall at the flat head end is used for stably clamping and attaching auricular point patches. The device is provided with a plurality of replaceable slides corresponding to different disease treatment schemes. The using method comprises the steps of projection marking of acupuncture points, accurate positioning of the acupuncture point detection ball, tweezers wall attaching and pressing and the like. The problems that traditional auricular point bean burying operation depends on professional guidance, positioning is not accurate, and tools are scattered are solved, intuitive, accurate and integrated home self-treatment is achieved, and operation convenience and treatment compliance are improved.

This invention discloses a rounded corner processing technology for square parts. The square part is positioned and rotated using a V-shaped bidirectional punch forming machine, and then rounded corners are ground on the positioned and rotated square part using an optical curve projection grinder. The optical curve projection grinder uses an optical projection magnification device to project the square part onto a projection screen, which is then compared with a magnified film of the square part clamped on the projection screen. During processing, the grinding wheel of the processing device grinds the outline of the square part until the projection of the square part completely coincides with the contour lines on the magnified film, thus completing the rounded corner grinding process. This method offers advantages such as high processing accuracy and good surface finish. Simultaneously, the V-shaped bidirectional punch forming machine has the advantage of precise positioning. The two technologies work together to greatly improve processing accuracy. Therefore, the rounded corner processing technology for square parts of this invention improves processing accuracy, meets the product's processing accuracy requirements, and ensures product quality.

The embodiment of the invention relates to the technical field of projection display, in particular to a head-up display system and a vehicle, the head-up display system uses a fusion module to splice a plurality of initial images output by an imaging module into a complete projection image, and projects the projection image to a reflection module, so that the reflection module amplifies the projection image, and the projection effect is improved. The amplified projection image is reflected to the projection display carrier, the visible area of the projection display carrier is fully paved with the amplified projection image, and the projection image can correspond to eye box ranges of people at multiple positions, so that drivers and passengers can see the projection image, and good interactive experience is achieved; and the use limitation of the head-up display projection technology is broken through.