Projector Focusing Arrangement TRIZ Cases

Electromagnetic lens actuation with layered yokes reduces frictional torque and keeps zoom and autofocus lens groups aligned.

Integrated coils, magnets, and displacement sensors enable compact autofocus and handshake correction with lower power and fewer parts.

Separately assembled lens, focusing, and anti-shake modules simplify camera assembly, raise yield, and keep the structure thin.

Corner-mounted drive magnets and side openings boost autofocus force while isolating the sensing magnet for stable camera module operation.

Different optical-axis receiving space lengths let unequal ball members support lens motion without tilt, preserving focus accuracy and resolution.

Nested holders, coils, magnets, and ball guides raise AF and OIS driving force in larger camera lenses while limiting crosstalk and deformation.

A nested bobbin, coil, magnet, and spring layout cuts dead space in lens actuation while keeping compact camera modules practical.

An overlapping elastic member shields the sensing magnet from UV curing heat while preserving adhesive fixing strength and autofocus stability.

A 2n symmetric magnet layout boosts coil field strength so voice coil motors deliver more force with lower power, weight, and size.

Displacement feedback on an electromagnetically driven lens bobbin cuts auto-focusing time while preserving compact camera module layout.

A dual-permeability yoke controls magnetic force to cut frictional torque and keep lens groups aligned during zoom and autofocus.

Multiple coil sets arranged along the optical axis raise thrust in a compact lens drive unit, enabling smooth movement of heavier focusing lenses.

Horizontal coil-to-magnet placement cuts magnetic interference between closely spaced dual OIS modules while maintaining AF driving force.

Nested aperture and focus/OIS drive assemblies shrink camera modules while preserving precise position sensing and continuous aperture control.

A movable optical element with sensing and stopping assemblies enables long focal length positioning in thinner electronic devices.

Interlocking bobbin and elastic-member features prevent disengagement under shock while improving lens-sensor gap adjustment and lowering cost.

Non-overlapping driving magnets and corner sensing magnets reduce cross-module interference while improving sensor alignment and attachment stability.

Dual bobbin stoppers, a damper groove, and a solder-ball pocket improve camera module shock reliability and assembly stability.

Magnet and coil layout with integrated shielding contains OIS interference, allowing dual camera optical axes to be placed closer together.

Coil resistance measurement corrects temperature drift in PWM-driven autofocus actuators, keeping lens position detection accurate.

A coil-and-yoke sensor shifter enables OIS while avoiding permanent-magnet interference that disrupts adjacent cameras and electronics.

Multiple coil groups and position sensing enable multi-axis optical element movement while reducing magnetic interference and stabilizing image quality.

Multiple magnetic elements, coils, and contact-force supports stabilize optical focus movement while reducing interference-related positioning errors.

Elastic and magnetic suspension assemblies restore a miniaturized camera module after shocks, preserving optical image stabilization and image quality.

A one-piece ferromagnetic carrier guides magnetic flux and connects the coil, shrinking camera module drive structure without losing motion control.

Tilting the lens with coils and magnets improves OIS while minimizing image distortion beyond the corrected area.

An injection-molded stop structure inside the housing protects the camera module from holder impact without increasing device size.

A split coil-magnet lens drive cuts zoom friction torque, limits lens tilt, and reduces magnetic interference in slim camera modules.

Separate bobbins, coils, magnets, and FPCBs limit interference between camera module drives for stable autofocus, zoom, and image stabilization.

Separate connection terminals and elastic members stop spring bending and rotor heaving, helping maintain lens-to-sensor gap control.

Separate AF and OIS magnetic drives raise lens force in limited camera space while reducing crosstalk and ball dent.

A yoke-shielded multi-coil actuator extends AF and zoom stroke while limiting magnetic interference and improving Hall-sensor position accuracy.

A movable portion driven at its resonant frequency enables distinct vibration modes in compact electronics without more complex motor structures.

A nested holder and stopping assembly layout shrinks optical element drives while preserving durability and precise autofocus and stabilization.

A nested bracket structure adds two perpendicular rotation axes to stabilize larger, heavier lenses with wider angles and better impact resistance.

Preformed bobbin protrusions and elastic-member coupling holes eliminate assembly gaps, improving lens spacing accuracy and shock resistance.

Integrated coils, magnets, and displacement sensors enable compact autofocus and handshake correction with lower power use and reliable motion sensing.

A sensing coil replaces the sensing magnet to avoid magnetic interference, shrink camera modules, and improve autofocus feedback accuracy.