OPTICAL UNIT, IMAGING UNIT, AND PORTABLE TERMINAL

• Main Author: KAWAKUBO NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 22.08.2023
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To solve a problem in which: the arrangement of a driving section for driving a diaphragm and a driving section for driving a lens may inhibit a reduction in the size and thickness of a terminal device having an optical unit mounted thereon.SOLUTION: An optical unit comprises: a reflection optical system that reflects a light beam incident from a first direction in a second direction orthogonal to the first direction; an imaging optical system that forms the light beam reflected in the second direction into an image; a first driving section that moves at least a part of the imaging optical system along the second direction; a light quantity adjustment section that is provided in a light path of the light beam reflected in the second direction; and a second driving section that drives the light quantity adjustment section. The first and second driving sections are arranged side by side along a third direction orthogonal to the first and second directions with the imaging optical system therebetween.SELECTED DRAWING: Figure 3 【課題】絞りを駆動するための駆動部と、レンズを駆動するための駆動部との配置によっては、光学ユニットを搭載する端末装置の小型化、薄型化を阻害することが考えられた。【解決手段】光学ユニットを、第１の方向から入射する光束を、前記第１の方向と直交する第２の方向へ反射する反射光学系と、前記第２の方向へ反射された光束を結像させる結像光学系と、前記結像光学系の少なくとも一部を第２の方向に沿って移動させる第１の駆動部と、前記第２の方向へ反射された光束の光路中に設けられた光量調整部と、前記光量調整部を駆動する第２の駆動部とから構成し、前記第１及び第２の駆動部を、前記結像光学系を挟んで、前記第１及び第２の方向のそれぞれと直交する第３の方向に沿って並んで配置する。【選択図】図３