| 摘要 |
<p>The housing (100) has an incident window region (104) for a light beam incident into the housing, and a discharge window region (106) for another light beam discharged from the housing. A diaphragm (108) suppresses a parasitic part of the incident light beam, which is reflected by an incident window region. The incident window region and the discharge window region are separated from each other by a slot (110) in a preset area, in which the diaphragm is arranged. The diaphragm is arranged adjacent to the slot. An independent claim is also included for a projection system.</p> |
