{"id":12547,"date":"2024-01-22T11:25:09","date_gmt":"2024-01-22T10:25:09","guid":{"rendered":"https:\/\/www.bramjacobse.nl\/wordpress\/?p=12547"},"modified":"2024-01-22T13:31:24","modified_gmt":"2024-01-22T12:31:24","slug":"optical-focusing-device","status":"publish","type":"post","link":"https:\/\/www.bramjacobse.nl\/wordpress\/?p=12547","title":{"rendered":"Optical Focusing Device"},"content":{"rendered":"<p>Optical Focusing Device<\/p>\n<p>The invention relates to an optical device comprising an axially movable objective with an optical axis, a frame carrying guide means for the axial movements of the objective, and an electro-magnetic actuating device for the objective, which actuating device comprises first actuating means which are supported resiliently on the frame and which are arranged concentrically around the objective, and second actuating means which are connected to the objective and which are spaced from the first actuating means by an annular gap. Such an optical device is used in particular as a focusing device for focussing a light beam on an optical disc.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-12545\" src=\"https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/Optical_focus_Device.jpg\" alt=\"\" width=\"1280\" height=\"654\" srcset=\"https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/Optical_focus_Device.jpg 1280w, https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/Optical_focus_Device-300x153.jpg 300w, https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/Optical_focus_Device-800x409.jpg 800w, https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/Optical_focus_Device-768x392.jpg 768w, https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/Optical_focus_Device-720x368.jpg 720w, https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/Optical_focus_Device-520x266.jpg 520w, https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/Optical_focus_Device-320x164.jpg 320w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>Patent : <a href=\"https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/US4615585.pdf\"><span style=\"color: #3366ff;\">US4615585<\/span><\/a> &#8211; Optical Focusing Device<\/p>\n<p>Octrooi : <a href=\"https:\/\/www.bramjacobse.nl\/wordpress\/wp-content\/uploads\/2024\/01\/NL8403052A.pdf\"><span style=\"color: #3366ff;\">NL8403052A<\/span><\/a> &#8211; Optische Inrichting<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Optical Focusing Device The invention relates to an optical device comprising an axially movable objective with an optical axis, a frame carrying guide means for the axial movements of the objective, and an electro-magnetic&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":12545,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[242,241,121],"tags":[],"class_list":["post-12547","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-octrooi","category-patent","category-philips"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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