8403results about "Projectors" patented technology

The invention relates to the technical field of camera anti-shake, and discloses a motion camera anti-shake method and system based on inertial prediction, and the method comprises the steps: collecting the three-axis acceleration original data of an IMU sensor in a motion camera, and calculating a first motion intensity value; when the first motion intensity value is smaller than an acceleration change rate threshold value, starting a first anti-shake mode, and extracting angular velocity data of the gyroscope; performing cubic spline interpolation curve fitting and time domain extrapolation prediction on the angular velocity data of the gyroscope to obtain a three-axis angular displacement predicted value and generate a first lens compensation driving signal in a first anti-shake mode; continuously monitoring the motion camera, switching to a second anti-shake mode when a second motion intensity value exceeds the acceleration change rate threshold value, acquiring three-axis acceleration sudden change data, and generating a second lens compensation driving signal in the second anti-shake mode, compared with a traditional single-mode anti-shake method, the method improves the adaptability and compensation precision in a complex motion environment.

An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and a circuit assembly. The movable portion is used for connecting to a first optical element. The movable portion is movable relative to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion. The circuit assembly is electrically connected to the driving assembly. The driving assembly is electrically connected to an external circuit through the circuit assembly.

The present invention relates to an aperture unit having an optical axis. The aperture unit includes a fixed portion, a guiding element, a first blade and a driving assembly. The guiding element is movably connected to the fixed portion, and the first blade is movably connected to the guiding element and the fixed portion. The driving assembly is disposed on the guiding element for driving the guiding element to move relative to the fixed portion in a first moving dimension. When the guiding element moves relative to the fixed portion in the first moving dimension, the first blade is driven by the guiding element to move relative to the fixed portion in a second moving dimension, and the first moving dimension and the second moving dimension are different.

Disclosed are an apparatus, system, and method of a visual sensor of a tactical gear to use facial recognition technology to identify a person of interest and to cause a responsive device on the tactical gear to notify a wearer. In one embodiment, a personal protective equipment includes a responsive device integrated in a tactical gear and a visual sensor. The visual sensor of the tactical gear identifies a target person using an identity artificial intelligence model. The responsive device notifies a wearer of the tactical gear when the visual sensor identifies the target person. Further, the responsive device notifies an additional person when the visual sensor identifies a threat to a protectee of the wearer and the additional person. The responsive device may vibrate when the visual sensor of the tactical gear detects an ambient threat to the protectee of the wearer.

An optical system includes an optical module with a main axis is provided. The optical module includes a fixed portion, a movable portion, a driving mechanism, and a supporting assembly. The movable portion is connected to an optical element and is movable relative to the fixed portion. The driving mechanism drives the movable portion to move relative to the fixed portion. The supporting assembly is connected to the movable portion and the fixed portion. When viewed along a direction that is parallel with the main axis, the fixing portion is a polygonal structure with a first side, a second side, a third side, and a fourth side. The first side is parallel with the third side, the second side is parallel with the fourth side, and the first side is not parallel with the second side.

A driving mechanism for moving an optical element is provided. The driving mechanism includes a fixed part, a movable part, and a driving assembly. The movable part is movably connected to the fixed part for holding the optical element. The driving assembly is configured for moving the movable part relative to the fixed part.

The invention provides a projection lens, which comprises seven lenses from a projection surface to an image source surface along an optical axis: a first lens with negative focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with negative focal power and a fifth lens with negative focal power, the second lens has positive focal power; the surface of the image source side of the third lens is a convex surface; the surface of the projection side of the fourth lens is a concave surface, and the surface of the image source side of the fourth lens is a convex surface; the surface of the projection side of the fifth lens is a concave surface, and the surface of the image source side of the fifth lens is a concave surface; the surface of the projection side of the sixth lens is a convex surface, and the surface of the image source side of the sixth lens is a convex surface; the surface of the projection side of the seventh lens is a convex surface, and the curvature radius R7 of the surface of the projection side of the fourth lens and the curvature radius R8 of the surface of the image source side of the fourth lens meet the formula:-0.5 lt; (R7-R8) / (R7 + R8) lt; and-0.1. According to the projection lens provided by the invention, the projection quality of the projection lens is improved through the reasonable configuration of the surface types of the lenses and the reasonable matching of the focal power.

A bird feeder includes a feeding component and a first camera, where the feeding component is provided with a feeding zone. The first camera is provided at or beyond an edge of the feeding component and shoots from or beyond the edge of the feeding component towards the feeding zone, and captures first image data. The bird feeder designed in the present application attracts birds to perch and feed via the feeding component, while the first camera positioned at the edge or outside the feeding component captures images or videos of the bird feeding activities to address the difficulty in bird observation and shooting, which enables the recording of detailed feeding activities without disturbing the birds which are feeding, thereby providing more stable and comprehensive documentation of bird feeding activities. This facilitates observers' examination of bird feeding processes, demonstrating significant potential for widespread adoption and practical application value.

The invention provides a projection lens, which comprises seven lenses from a projection surface to an image source surface along an optical axis: a first lens with negative focal power; the second lens has positive focal power; the surface of the image source side of the third lens is a convex surface; the surface of the projection side of the fourth lens is a concave surface, and the surface of the image source side of the fourth lens is a convex surface; the surface of the image source side of the fifth lens is a concave surface; the surface of the projection side of the sixth lens is a convex surface, and the surface of the image source side of the sixth lens is a convex surface; the surface of the projection side of the seventh lens is a convex surface, and the surface of the image source side of the seventh lens is a convex surface; the surface curvature radius R7 of the projection side of the fourth lens and the surface curvature radius R8 of the image source side of the fourth lens meet the following formula:-0.6 lt; (R7-R8) / (R7 + R8) lt; 0. According to the projection lens provided by the invention, the projection quality of the projection lens is improved through the reasonable configuration of the surface types of the lenses and the reasonable matching of the focal power.

An aperture unit having an optical axis is provided, which includes a fixed portion having a first surface and including a protrusion formed on the first surface, a guiding element movably connected to the fixed portion and including a through hole, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly use for driving the guiding element to move for moving the first blade. The optical axis passes through the through hole. The first surface has a first accommodating space having a recessed structure to accommodate the guiding element, and the protrusion extends toward the first blade.

An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect the optical element. The movable portion may move relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion.

An optical system is provided and includes a fixed assembly, a movable element, a movable assembly, and a driving module. The fixed assembly defines a main axis, and the fixed assembly has a casing on which a casing opening is formed, corresponding to the main axis. The movable element is movable relative to the fixed assembly and is connected to a first optical element. The movable assembly is connected to the movable element. The driving module is configured to drive the movable assembly so as to drive the movable element to move relative to the fixed assembly. The first optical element has a first section and a second section. When viewed along the main axis, the size of the first section is larger than the size of the casing opening, and the size of the second section is smaller than the size of the casing opening.

The utility model discloses a three-color micro-projection optical system, the three-color micro-projection optical system is provided with an object side and an image side which are correspondingly arranged along an optical axis direction, the three-color micro-projection optical system comprises a diaphragm, a lens group and a color combination prism assembly which are sequentially arranged from the object side to the image side; the color combination prism assembly comprises a color combination prism, a red light-emitting chip, a green light-emitting chip and a blue light-emitting chip; the focal length of the three-color micro projection optical system is f, 5.9 mlt; flt; the thickness is 6.4 mm; the distance from the diaphragm to the image surface is the total optical length TTL and TTLlt of the three-color micro-projection optical system; and the thickness is 10.2 mm. By means of the arrangement, in the environment temperature range of 20-60 DEG C, the optical system does not defocus during working, the MTF full frequency is higher than 0.5, the total length of the optical system can be controlled within 10.2 mm, and the working performance is more stable.

An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, and a driving assembly. The movable assembly is configured to be connected to an optical element and is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move along a first axis relative to the fixed assembly.

The utility model provides a projection lens, which comprises four lenses from a projection surface to an image source surface along an optical axis: a diaphragm; the projection side of the first lens is a convex surface, and the image source side of the first lens is a concave surface; the projection side of the second lens is a concave surface, and the image source side of the second lens is a convex surface or a concave surface; the projection side of the third lens is a convex surface, and the image source side of the third lens is a concave surface; the projection side of the fourth lens is a concave surface, and the image source side of the fourth lens is a convex surface; wherein the total optical length TTL of the projection lens meets the following conditions: 6.6 mmlt; tTLlt; the aperture number FNO of the projection lens meets the following conditions: 1.4 lt; fNOlt, FNOlt; 1.7, the total optical length TTL of the projection lens, the air gap T34 between the third lens and the fourth lens on the optical axis, and the air gap T23 between the second lens and the third lens on the optical axis meet the following conditions: 6lt; tTL / (T23-T34) lt; and 15, so that the projection lens is small in size and light in weight.

A driving mechanism is provided. The driving mechanism includes a fixed portion, a movable portion, a driving assembly, a circuit assembly, and a signal adjusting assembly. The movable portion is movable relative to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion. The driving assembly is used for receiving a first signal provided by a control assembly. The driving assembly is electrically connected to the control assembly by the circuit assembly. The signal adjusting assembly is electrically connected to the driving assembly. The signal adjusting assembly is used for adjusting the first signal.

The invention provides a projection lens, which sequentially comprises a first lens with positive focal power from a projection surface to an image source surface along an optical axis, a second lens with negative focal power and a third lens with positive focal power from the projection surface to the image source surface, the surface of the projection side of the second lens is a convex surface, and the surface of the image source side of the second lens is a concave surface; the surface of the projection side of the third lens is a concave surface, and the surface of the image source side of the third lens is a concave surface; the surface of the projection side of the fourth lens is a convex surface, and the surface of the image source side of the fourth lens is a convex surface; the surface of the image source side of the fifth lens is a convex surface; the surface of the projection side of the sixth lens is a convex surface; a prism; a protective glass; a piece of plate glass with changeable positions is arranged between the prism and the protective glass, and the plate glass can be located at a first position or a second position through a switching device. According to the projection lens provided by the invention, clear imaging at two different projection distances is realized through switching of the plate glass, and switching between a close shot and a long shot is completed.

A motor, camera module and device having a base, an image stabilization bracket, a first image stabilization magnetic piece, a second image stabilization magnetic piece, a first image stabilization coil, a second image stabilization coil, and a guide bracket having an L-shape. The first image stabilization magnetic piece is fastened to a first edge portion of the image stabilization bracket, and the second image stabilization magnetic piece is fastened to a second edge portion of the image stabilization bracket. The image stabilization bracket, and the first and second image stabilization coils are fastened to the base. Three support portions of the guide bracket are all located between the image stabilization bracket and the base, are disposed in a one-to-one correspondence with three corner portions of the image stabilization bracket, and are connected to the base and the image stabilization bracket through support pieces.

The utility model relates to an LCOS (Liquid Crystal On Silicon) projection device, which comprises a light source module capable of emitting red, green and blue light beams, a polarization filter and an imaging lens which are sequentially arranged along a projection light path, an LCOS chip capable of modulating the polarization state of incident light is arranged on a projection light path between the polarization filter and the imaging lens, and an imaging lens group capable of imaging the incident light onto the LCOS chip is arranged on a projection light path between the light source module and the polarization filter. And a polarization layer capable of transmitting P polarized light and reflecting S polarized light is arranged on the polarization filter. Compared with a polarizing prism applied to a traditional LCOS projection light path, the LCOS projection light path has the advantages that through the arrangement of the polarizing filter and the polarizing layer which is arranged on the polarizing filter and can transmit P polarized light and reflect S polarized light, the LCOS projection light path has higher polarization efficiency, stray light is reduced, and optical efficiency is improved.

An optical system includes an optical module with a main axis is provided. The optical module includes a fixed portion, a movable portion, and a driving mechanism. The movable portion is connected to an optical element and is movable relative to the fixed portion. The driving mechanism drives the movable portion to move relative to the fixed portion. When viewed along a direction that is parallel with the main axis, the fixed portion is a polygonal structure with a first side, a second side, a third side, and a fourth side. The first side is parallel with the third side, the second side is parallel with the fourth side, and the first side is not parallel with the second side.

The invention relates to a lens driving module and a camera module. The lens driving module is used for bearing an optical lens and comprises a base; the lens carrier is movably arranged on the base; the driving assembly is configured to drive the lens carrier to move relative to the base; the correction assembly comprises correction magnets and correction magnet yokes, one of the correction magnets and the correction magnet yokes is arranged on the lens carrier, the other correction magnet yoke is oppositely arranged on the base in the first direction parallel to the optical axis of the optical lens, and each correction magnet yoke comprises a first correction magnet yoke and a second correction magnet yoke which are arranged at intervals in the width direction of the lens carrier; the length of the first correction magnet yoke is larger than that of the second correction magnet yoke, the projection area of the first correction magnet yoke on the correction magnet in the first direction is larger than that of the second correction magnet yoke on the correction magnet in the first direction, and the center line of the correction magnet penetrates through the first correction magnet yoke. The influence of deflection torque on the movement of the lens carrier is reduced.

The invention provides a warning method and system of an intelligent tripod warning lamp, and relates to the technical field of intelligent vehicle-mounted technologies. When a vehicle is in danger, vehicle state information is collected to automatically generate a warning trigger instruction, and a rear target projection point is determined based on a road type and a vehicle position; projection parameters are calculated in combination with vehicle postures, a vehicle-mounted projection light source is driven to generate a triangular warning graph on the ground at the target distance, meanwhile, light beam output is adjusted in a self-adaptive mode according to environment illumination and visibility, and it is guaranteed that the graph is clear and visible and conforms to human eye safety; the projection position and parameters are dynamically updated to maintain stable warning during the duration of the dangerous state, and the system is automatically closed and reset when the danger is relieved or manual termination is performed, so that the risk of manual arrangement is avoided, and long-distance stable warning is realized.

The utility model discloses a projection screen support with small storage volume, which comprises a connecting disc, a plurality of first supporting rods and two supporting legs, the first supporting rods are rotatably connected with the connecting disc, the plurality of first supporting rods are arranged around the outer side of the connecting disc, first elastic hanging pieces are arranged on the first supporting rods, and the two supporting legs are arranged on the first supporting rods. First clamping grooves are formed in the connecting disc, first elastic hanging pieces are arranged in the first clamping grooves, first buckles extend on the first elastic hanging pieces, the first buckles are clamped into the first clamping grooves, the supporting legs are rotationally connected with the connecting disc, the two supporting legs are arranged around the outer side of the connecting disc, second elastic hanging pieces are arranged in the middles of the supporting legs, second buckles extend on the second elastic hanging pieces, and the second buckles are clamped into the second clamping grooves. And the second buckle is clamped into the second clamping groove. The projection screen support provided by the utility model is small in storage volume, can be folded to reduce the volume, and is convenient for a user to store and carry.

A camera may include a tilt actuator having one or more tilt magnets and one or more tilt coils. The tilt actuator may detect unexpected tilt between one or more lenses and an image sensor of the camera. The tilt actuator may control current of the tilt coils to interact with magnetic fields of the tilt magnets to generate motive force to rotate the lenses relative to the image sensor around one or more axes to compensate for the detected tilt. In addition, the tilt coils and tilt magnets may interact to move the lenses relative to the image sensor along an optical axis of the lenses to adjust a focus of the camera.

A camera module includes a lens driving device having a housing, a first circuit board disposed below the housing, a filter disposed on an upper surface of the first circuit board, a second circuit board disposed below the first circuit board, an image sensor disposed on the second circuit board and coupled to a lower surface of the first circuit board, and a first adhesive member disposed between the lower surface of the first circuit board and an upper surface of the second circuit board, and electrically connecting the first circuit board and the second circuit board. A lower surface of the image sensor is higher than the upper surface of the second circuit board.

The present invention provides a vehicle projector device installed inside a vehicle, a vehicle cabin system comprising same, and a method for adjusting the position of a projection image of a projecting module installed inside the vehicle, the vehicle projector device comprising: an armrest having a top cover; and the projecting module that is installed in the armrest to be rotatable and enables adjustment of a projection area to project an image toward the ceiling and rear of the interior of the vehicle.

The invention discloses a dynamic multi-spot projection optical system based on an LED light source, which comprises the LED light source, a reflecting cover, a grating sheet, a condensing lens, a concave reflector and an optical reflection assembly, and is characterized in that the LED light source is arranged at the bottom of the reflecting cover, and the grating sheet is provided with a light-transmitting area with a preset pattern shape; the reflecting cover consists of a plurality of plane reflectors A; the concave reflector consists of a plurality of plane reflectors B; light emitted by the LED light source forms a pattern light beam through the grating piece, the light beam is divided and reflected into a plurality of sub light beams through the conical reflecting cover, and the sub light beams are guided to the condensing lens through the optical reflecting mirror set. According to the invention, a low-cost, laser-free and safe LED scheme is adopted, and through innovative optical design, a complex dynamic light and shadow effect comparable to or even surpassing laser projection is realized, and the imaging definition is kept unchanged within a projection distance range of 2-15 meters.

A charging door provided with a projection lamp and a method of controlling projection of the same, includes a base, a charging door panel, a connection member, and a projection lamp module, wherein a charging port is formed in the base, and a vehicle is charged through the charging port, the charging door panel is pivotably mounted to the base, the connection member connects the base and the charging door panel with each other, and a mounting hole is formed in the connection member, and the projection lamp module is mounted in the mounting hole of the connection member, and the projection lamp module is electrically connected to a controller to be turned on or off according to a command signal of the controller and to project light of a predetermined color, based on a command signal of the controller.

The utility model discloses a shell device for spherical projection imaging, which comprises a transparent upper shell, a lower shell and a neck shell, the neck shell is arranged on one side of the upper shell far away from the lower shell, the neck shell and the upper shell are integrally formed, a bearing base is arranged on the inner bottom surface of the lower shell, the bearing base is provided with an accommodating groove, and the accommodating groove is communicated with the accommodating groove. A containing groove is formed in the neck shell and can contain a rolling bearing, the bearing base is in contact connection with the outer surface of the rolling bearing, a cable penetrating channel allowing a cable to penetrate is formed in the neck shell, a waterproof connector is arranged in the cable penetrating channel, the space among the waterproof connector, the cable penetrating channel and the cable is filled with sealant, and long groove holes which are oppositely formed are formed in the two sides of the neck shell. One end of the long slotted hole is connected with a suspension support through a bolt, and the other end of the long slotted hole serves as a glue pouring end. According to the utility model, the long slotted hole realizes dual purposes and convenience, can be used for being connected with a suspension bracket, and can also be used as a glue filling port, so that glue filling is accurately controlled, sealant waste is avoided, and the glue filling period is shortened.

The invention belongs to the technical field of optical imaging equipment, and particularly relates to a lens driving device which comprises a base and a motor mechanism, the motor mechanism comprises a frame which is arranged on the base, an AF coil is arranged on the side wall of one side of the frame, and the AF coil and an AF magnet arranged on the side wall of the base are oppositely arranged so that the frame can move in the third direction relative to the base; the OIS coil plate is arranged in the frame, and an OIS coil is arranged in the OIS coil plate; the carrier is arranged in the frame, the OIS coil plate is located between the carrier and the frame, an OIS magnet is arranged at the bottom end of the carrier, and the OIS magnet and the OIS coil are oppositely arranged so that the carrier can move in the first direction and the second direction relative to the frame. Through an innovative position design mode, magnets adopted by AF zoom operation and anti-shake operation are independent and do not interfere with each other, and the stability of automatic focusing and optical anti-shake control is ensured.