{"id":392516,"date":"2024-11-04T02:36:43","date_gmt":"2024-11-04T02:36:43","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/rotation-of-cylindrical-lens-affects-other-surfaces\/"},"modified":"2025-01-08T15:10:38","modified_gmt":"2025-01-08T15:10:38","slug":"rotation-of-cylindrical-lens-affects-other-surfaces","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/rotation-of-cylindrical-lens-affects-other-surfaces\/","title":{"rendered":"Rotation of cylindrical lens affects other surfaces"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I&#8217;m trying to rotate a cylindrical lens by 90 degrees so that a different axis of the beam is focused. This is the system before any coordinate breaks:&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/04-11-2024-1730687464-mceclip0.png\" width=\"845\" height=\"414\" \/>&lt;\/p&gt;&lt;p&gt;I want to have the beam collimated before the paraxial lens and then converge\/diverge afterwards. This requires a rotation of the cylindrical lens. However, rotating the lens doesn&#8217;t affect the beam, and instead affects the subsequent surfaces. This:&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/04-11-2024-1730687619-mceclip1.png\" width=\"689\" height=\"409\" \/>&lt;\/p&gt;&lt;p&gt;Results in this:&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/04-11-2024-1730687668-mceclip2.png\" width=\"926\" height=\"475\" \/>&lt;\/p&gt;&lt;p&gt;Where you can see that the final surface has changed while the beam shape has not. Am I doing something wrong with the tilt? The coordiante break is setup to have 90 degree tilt in z and -90 tilt afterwards.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-392516","topic","type-topic","status-answered","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["476679","50911","473055"],"_bbp_author_ip":["2605:880:30:1::2db"],"_btv_view_count":["549"],"_bbp_topic_status":["answered"],"_edit_last":["476679"],"_edit_lock":["1736290923:473055"],"_bbp_topic_id":["392516"],"_bbp_forum_id":["27816"],"_bbp_engagement":["50911","476679","473055"],"_bbp_voice_count":["3"],"_bbp_reply_count":["9"],"_bbp_last_reply_id":["404100"],"_bbp_last_active_id":["404100"],"_bbp_last_active_time":["2025-01-08 12:35:15"],"_bbp_notification_enabled":["473055"]},"test":"mcamp1umd-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/392516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/392516\/revisions"}],"predecessor-version":[{"id":404117,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/392516\/revisions\/404117"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=392516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}