Integrated focal length adjusting system for optical apparatus

G - Physics – 02 – B

Patent

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G02B 7/02 (2006.01)

Patent

CA 2643811

An integrated focal length adjusting system for optical apparatus comprises a first optical lens (31), a hollow first housing (2), a hollow second housing (1) and a plurality of piezoelectric components (11). The first optical lens is disposed inside the hollow first housing, and there is thread fit between the hollow first housing and the hollow second housing. The plurality of piezoelectric components are attached to the hollow first housing or the hollow second housing. Progressive wave is generated by the attached housing when it is actuated and oscillated by the plurality of piezoelectric components, relative rotation and axial movementare generated between the two housings, thereby realizing change and adjustment of focal length.

L'invention concerne un système intégré d'ajustement de distance focale conçu pour des appareils optiques. Ce système comprend une première lentille optique (31), un premier logement creux (2), un deuxième logement creux (1), et plusieurs composants piézoélectriques (11). La première lentille optique est disposée dans le premier logement creux. De plus, le premier logement creux et le deuxième logement creux s'assemblent par complémentarité de filetage. Lesdits composants piézoélectriques sont fixés au premier logement creux ou au deuxième logement creux. Une onde progressive est générée par le logement sur lequel sont fixés les composants piézoélectriques lors de l'actionnement, et oscille sous l'action desdits composants piézoélectriques. Un mouvement de rotation relatif ainsi qu'un mouvement axial sont générés entre les deux logements, ce qui modifie et ajuste la distance focale.

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