Standard 830 nm structured light DOEs

Standard 830 nm structured light DOEs

Wuxi OptonTech Ltd introduces four types of standard 830 nm structured light DOEs on July 11 2016. 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 No	Spots number	Angle along horizontal and vertical directions	Angle along diagonal direction
SL1	34,650	45 x 56 deg	68 deg
SL2	34,650	91 x 105 deg	118 deg
SL3	100,440	67 x 80 deg	94 deg
SL4	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 940 nm structured light DOEs

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