DRAWING SYSTEM

• Main Authors: ITO SHINYA, KYONO TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 30.11.2023
• 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; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS

To provide a drawing system with which it is possible to reduce speckles by a simple composition.SOLUTION: A drawing system according to one embodiment comprises a light output unit that outputs drawing laser light, a scan unit that scans the drawing laser light outputted from the light output unit so as to draw a video, a video display unit that displays the video drawn by the drawing laser light that is scanned by the scan unit, and a transparent film that is disposed between the video display unit and the light output unit. The video display unit includes a display mechanism that diffuses or scatters the drawing laser light and displays a video. The transparent film has a first surface that faces the video display unit and a second surface that is reverse from the first surface. The first refractive index of the transparent film to the drawing laser light is larger than the second refractive index of a medium in contact with the second surface to the drawing laser light, and the difference in refractive index between the first and the second refractive indices is 0.3 to 0.7 inclusive.SELECTED DRAWING: Figure 1 【課題】簡易な構成でスペックルを低減可能な描画システムを提供する。【解決手段】一実施形態に係る描画システムは、描画レーザ光を出力する光出力部と、光出力部から出力された描画レーザ光を、映像を描画するように走査する走査部と、走査部で走査された描画レーザ光によって描画される前記映像を表示する映像表示部と、映像表示部と光出力部の間に配置される透明フィルムとを備え、映像表示部は前記描画レーザ光を拡散または散乱して映像を表示する表示機構を含み、透明フィルムは、映像表示部と向かい合う第１面と、第１面と反対の第２面とを有し、透明フィルムの描画レーザ光に対する第１屈折率は、第２面に接する媒質の描画レーザ光に対する第２屈折率より大きく、第１屈折率と第２屈折率の屈折率差は０．３以上０．７以下である。【選択図】図１