Standard 940 nm structured light DOEs

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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