US 12,352,980 B2
Framing system for shaping a light beam
Carsten Dalsgaard, Silkeborg (DK)
Assigned to Harman Professional Denmark Aps, Aarhus N (DK)
Filed by HARMAN PROFESSIONAL DENMARK APS, Aarhus N (DK)
Filed on Nov. 12, 2021, as Appl. No. 17/525,048.
Prior Publication US 2023/0152599 A1, May 18, 2023
Int. Cl. G02B 27/09 (2006.01); G02B 5/00 (2006.01)
CPC G02B 27/0988 (2013.01) [G02B 5/005 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A framing system for shaping a light beam, the framing system comprising:
a first shutter system comprising a first blade and a second blade;
a second shutter system comprising a third blade and a fourth blade; and
a blade divider forming an aperture, the first shutter system and the second shutter system being arranged on opposite sides of the blade divider, wherein the first blade and the second blade are adjacent to a first side of the blade divider and the third blade and the second blade are adjacent to a second side of the blade divider;
wherein each blade constitutes an intermediate bar in a five-bar linkage between two sets of outer bars, each set comprising a motorized bar and a passive bar, and
wherein at least one of the motorized bars has a length being larger than a diameter of the aperture.