METHOD AND SYSTEM FOR SELECTIVELY ADJUSTING PIXELS, IN OPTICAL MODULE, IN ORDER TO AMEND GEOMETRIC DEFECTS DUE TO MANUFACTURING TOLERANCES

• Main Authors: ALBOU PIERRE, GODBILLON VINCENT
• Format: Patent
• Language: English; Japanese
• Published: 29.08.2019
• Subjects: ACCESSORIES THEREFOR; ADVERTISING; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BLASTING; CINEMATOGRAPHY; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTROGRAPHY; HEATING; HOLOGRAPHY; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; SEALS; SYSTEMS THEREOF; TRANSPORTING; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; VEHICLES IN GENERAL; WEAPONS

To provide a luminous motor-vehicle system capable of compensating for undesirable movement or deformation effects in a projected image caused by manufacturing tolerances of an optic.SOLUTION: An optical module 1 includes an imaging device provided with a pixelated spatial modulator 3, which is illuminated by a source 2, and a projecting optic 18. A control unit 16 for controlling the pixelated spatial modulator 3 receives first display commands F1 that are representative of an image to be projected. The control unit 16 converts each first display command F1 into a second display command F2 taking into account correction parameters, which are predefined on the basis of an identification of geometric defects specific to the projecting optic 18. The control unit 16 controls the pixelated spatial modulator 3, which may be a digital micromirror device 6, depending on the second display commands F2 in order that an image F3 actually projected by the imaging device corresponds to the image to be projected.SELECTED DRAWING: Figure 1 【課題】光学部品の製造公差を原因とする投影画像の不所望の移動又は変形の作用を補償することができる発光自動車両システムを提供する。【解決手段】光学モジュール１は、光源２によって照明されるピクセル化空間モジュレータ３と投影光学部品１８とを有する結像装置を備える。ピクセル化空間モジュレータ３を制御するための制御ユニット１６は、投影すべき画像を示す第１表示コマンドＦ１を受信する。制御ユニット１６は、各第１表示コマンドＦ１を、投影光学部品１８に特有の幾何学的欠陥の認識に基づいて予め規定される修正パラメータを考慮する第２表示コマンドＦ２に変換する。結像装置によって実際に投影される画像Ｆ３が投影すべき画像に合致するように、制御ユニット１６は、デジタル・マイクロミラー・デバイス６であり得るピクセル化空間モジュレータ３を、第２表示コマンドＦ２に応じて制御する。【選択図】図１