Projector Focusing Arrangement TRIZ Cases

A lens support mechanism moves optical groups along an axis while restricting rotation through a cam cylinder and guide shaft.

Spaced protrusions on a spacer and holder constrain maximum displacement, eliminating unevenness without high-accuracy components.

Metal rail shafts embedded in a resin frame eliminate wear at the ball contact area while maintaining lightweight manufacturing efficiency.

Five-element zoom lenses use aspherical surfaces to correct aberrations, lowering fabrication costs while maintaining telecentricity.

Dynamic emission direction control enables projection onto walls, floors, and ceilings without repositioning the projector.

A zoom lens locking mechanism uses a spring-loaded latch to secure the mobile group during operation.

Segmenting optical lenses into fixed and movable sets reduces driving force requirements, allowing smaller actuators in portable devices.

A lens barrel member and control unit position their edge surfaces to minimize impactive force and magnetic noise influence on the imaging system.

A lens device controls subordinate lens movement relative to a main lens using a derived positional function.

A vibration actuator uses a rotation member to convert linear motion into orthogonal output.

A tunable liquid lens varies focal length and polarization to mitigate speckle in projected images.

Segmented movable and fixed assemblies reduce Z-axis height while maintaining auto-focusing stability in miniaturized camera modules.

A lens barrel uses contact-based communication units to transfer power and data without cables.

An integrated coil and magnet assembly rotates the lens barrel along an optical axis, reducing device protrusion height.

A lens driving device stabilizes the optical axis using a dedicated support frame and electromagnetic drive.

Segmented electro-active polymer actuators replace voice coil motors to lower power consumption while providing lens displacement and variable aperture control.

A flexible scale member contacts convex portions on an annular ring to detect relative rotation.

A shared lens driving device operates two liquid lenses in a dual camera module, eliminating electromagnetic interference between separate hardware units.

Activatable conductive film connects camera module pads while an insulating layer prevents signal interference from uneven filler distribution.

A liquid lens apparatus uses individual electrodes and sensor units to detect interface capacitance changes for precise curvature adjustment.

Segmenting the drive into two sources improves lens position precision and speed without increasing motor noise or vibration.

Capacitive charge pump circuit eliminates bulky inductors by generating high AC voltage from low DC supply for compact camera modules.

An anti-shake auto-focus module merges focusing and stabilization into one unit, reducing volume while maintaining image quality in portable devices.

A detachable barrel retaining ring enables quick disassembly of the focusing assembly for lens and display screen maintenance.

Six-lens imaging configuration corrects optical aberrations through precise focal length ratios.

Meandering plate spring arms increase rigidity to prevent plastic deformation under perpendicular and oblique impact stresses in compact lens drives.

A lens moving apparatus employs a yoke structure to prevent magnetic field leakage while maintaining strong force for precise autofocus and image stabilization.

A variable-focus lens adjusts focal length to position the beam waist deeper than the projection surface.

Sensing coils replace hall sensors to calculate lens position through oscillation frequency differences, reducing manufacturing costs.

A camera module uses a sensing yoke and coil to measure lens position with high precision in a compact form factor.

Recesses on peripheral surfaces prevent grease scattering and sticking between the retainer and surrounding members.

Cylindrical heater design using a resin support member to manage thermal interface grease distribution.

A differential transmitter moves an optical element using a driving element and manual manipulation ring.

White-light interferometric imager segments depth into focal planes to capture high-resolution surface-region images.

Movable lens groups and an optical path folding element compress the overall length of a long focal length imaging system for thin portable terminals.

A vibratory actuator control apparatus manages driving speed and frequency to maintain consistent performance in imaging devices.

A projector uses an imaging unit to capture its own projected pattern for focus analysis.

A camera module actuator adjusts its driving scheme based on external illumination levels to optimize lens barrel movement.

Segmenting the lens assembly into independently controllable units reduces current consumption by moving only specific lenses during auto-focus operations.

A camera module driving device uses composite metal or ceramic supports to reduce friction between sliding components.

Varying thicknesses in the elastic member balance stiffness against miniaturization, preventing rupture while maintaining electrical contact.

Insert molding embeds the circuit unit into the housing, resolving space constraints from protruding components while protecting the sensing element.

Segmenting rollers with a limiting member suppresses lens offset and minimizes image shake during impact events.

Contact portions overlap the lens in a perpendicular direction to reduce size in the optical axis direction while maintaining stability.

A lens barrel design uses a light shielding sheet as an intermediary to regulate lens position and prevent collisions.

Coaxially disposed linear motion guide devices in the lens guide fixing unit distribute load and inhibit bending of the track bodies.

A flexible polymer lens adjusts focal length using a piezoelectric actuator to bend the optical surface.

Control unit moves optical device moving groups independently within shared driving regions to prevent mechanical interference.

Bonding a sensing coil to an elastic member eliminates Hall sensors, reducing camera module complexity.

Integrating a light blocking layer on the outermost lens eliminates separate films, reducing moving mass and improving auto focusing response.