Boston Multi-DM - Page 55

Multi-DM™ User Manual Section 10 - Reference Information
BMC Document Number: DOC-0009 Rev. 5.2 Page 52
10.5.1 The Full Aperture
The Full Aperture (FA) is the largest circular region that fits within the DM's
reflective surface. The Full Aperture is what you see when looking
directly at the DM, and is also known as the Unpowered Surface Figure.
As it is not entirely controllable, the Full Aperture is typically not used,
but is useful to know if the application calls for overfilling the useful area.
10.5.1.1 The Full Aperture for Continuous DMs
Continuous DMs have two or more rows of inactive actuators outside of
the controllable actuators. The reflective area extends to the outermost
inactive actuators.
The diameter of the Full Aperture is ([actuators across] + 3) x [pitch]
Full Aperture (red circle)
overlaid on the actuator map
Surface scan
of the Full Aperture
10.5.1.2 The Full Aperture for Segmented DMs
Segmented DMs have two or more rows of inactive actuators, outside of
the controllable actuators. Each of these inactive actuators has a full size
reflective segment. The reflective area extends to the outermost edge
of the outermost reflective segment.
The diameter of the Full Aperture is ([actuators across] + 4) x [pitch]
Full Aperture (red circle)
overlaid on the actuator map
Surface scan
of the Full Aperture
88 75 62 49 36
112 101 89 76 63 50 37 25 14
123 113 102 90 77 64 51 38 26 15 5
124 114 103 91 78 65 52 39 27 16 6
132
125 115 104 92 79 66 53 40 28 17 7 0
133
126 116 105 93 80 67 54 41 29 18 8 1
134
127 117 106 94 81 68 55 42 30 19 9 2
135
128 118 107 95 82 69 56 43 31 20 10 3
136
129 119 108 96 83 70 57 44 32 21 11 4
130 120 109 97 84 71 58 45 33 22 12
131 121 110 98 85 72 59 46 34 23 13
122 111 99 86 73 60 47 35 24
100 87 74 61 48
88 75 62 49 36
112 101 89 76 63 50 37 25 14
123 113 102 90 77 64 51 38 26 15 5
124 114 103 91 78 65 52 39 27 16 6
132
125 115 104 92 79 66 53 40 28 17 7 0
133
126 116 105 93 80 67 54 41 29 18 8 1
134
127 117 106 94 81 68 55 42 30 19 9 2
135
128 118 107 95 82 69 56 43 31 20 10 3
136
129 119 108 96 83 70 57 44 32 21 11 4
130 120 109 97 84 71 58 45 33 22 12
131 121 110 98 85 72 59 46 34 23 13
122 111 99 86 73 60 47 35 24
100 87 74 61 48