Standard 940 nm structured light DOEs
Wuxi OptonTech Ltd introduced standard 940 nm structured light DOEs in September 2019. These DOEs have excellent performance including extremely low zero order, low roll-off (small difference in brightness between the center and the edges) and seamless tiling. The specifications are as follows. We welcome any question, query or e-request for information.
| Item Number | Wavelength |
One-piece /Cascaded |
Spots number | Angle along horizontal
and vertical directions |
Angle along
diagonal direction |
| DP-SL12-940 | 940 | One-piece | 34,650 | 72 x 58 deg | 85 deg |
| DP-SL11-830 | 830 | One-piece | 34,650 | 45 x 56 deg | 68 deg |
| DP-SL5-830 | 830 | One-piece | 69,732 | 65 x 52 deg | 77 deg |
|
DP-SL4 (Discontinued) |
830 | One-piece | 100,440 | 76 x 90 deg | 104 deg |
|
SP-SL4 (Discontinued) |
830 | Cascaded | 100,440 | 76 x 90 deg | 104 deg |
The following table compares the randomness of one single tile of the pattern indicated by the minimum hamming distance.
| Sub-window size | 9x9 | 11x11 | 13x13 | 15x15 | 17x17 | 19x19 | 21x21 | 23x23 | Sum of hamming distance |
| Minimum hamming distance of one
tile of the kinect pattern （Spots number：3842） |
3 | 9 | 16 | 25 | 36 | 48 | 61 | 74 | 272 |
|
Minimum hamming distance of the pattern designed by Wuxi OptonTech （Spots number：3848） |
4 | 10 | 14 | 25 | 37 | 50 | 62 | 79 | 281 |
And the following table compares the randomness of the whole pattern (3x3 tiles) indicated by the minimum hamming distance.
| Sub-window size | 9x9 | 11x11 | 13x13 | 15x15 | 17x17 | 19x19 | 21x21 | 23x23 | Sum of hamming distance |
| Minimum hamming distance of the whole 3x3-tile kinect pattern (Spot number: 34578) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Minimum hamming distance of the pattern designed by Wuxi OptonTech (Spots number: 34645) | 2 | 7 | 14 | 21 | 32 | 44 | 58 | 73 | 251 |
Wuxi OptonTech Ltd. standard structured light laser modules
Standard 830 nm structured light DOEs
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