Boston Multi-DM - Page 57

Multi-DM™ User Manual Section 10 - Reference Information
BMC Document Number: DOC-0009 Rev. 5.2 Page 54
10.5.3 The Recommended Optical Aperture
The Recommended Optical Aperture (OA) is the largest circular region
that fits within the displaceable FULLY controllable area of the DM surface.
10.5.3.1 Recommended Optical Aperture for Continuous DMs
For continuous DMs, the Recommended Optical Aperture is a circle
inscribed within the next actuator in from the outer controllable actuators.
Like the Active Aperture, the area within the Recommended Optical Aperture
is displaceable but is also fully controllable at the edges because the controllable
outer actuators are coupled to actuators further out that can also be controlled.
The diameter of the Recommended Optical Aperture is ([actuators across] -3) x
[pitch]
Recommended Optical Aperture
(red circle) overlaid on the actuator map
Surface scan of the flattened
Recommended Optical Aperture
10.5.3.2 The Recommended Optical Aperture for Segmented DMs
For segmented DMs, the Recommended Optical Aperture is a circle
inscribed within the outer controllable segments. The Recommended Optical
Aperture is the same size as the Active Aperture as no interactuator coupling exists.
The diameter of the Recommended Optical Aperture is [actuators across] x [pitch]
Recommended Optical Aperture
(red circle) overlaid on the actuator map
Surface scan of the flattened
Recommended Optical 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