SGD Series Optics & Crystals Micro-Nano Optics Microlens Array Phase Plate DOE

SGD Series Micro-nano Optics

The research on micro-nano optical devices and their array modulation optical behavior can realize new functions such as miniaturization, array, integration and wavefront conversion and form a variety of new systems. It has made great achievements in micro-nano optical theory, system application, device design and fabrication. At present, a series of products mainly consisting of microlenses, phase plates and diffraction devices have been formed and customized by users.

1. Microlens Array (MLA)

Microlens array is composed of lenses with aperture of micron-millimeter and relief depth of nano-micron. It has the basic functions of focusing and imaging. Its unit size is small and its integration is high. It can accomplish functions that traditional optical elements can not accomplish. It can also form many new optical systems, such as scanning, display, optical fiber coupling, light focusing imaging and so on.

A high-precision continuous surface microlens array with non-diffraction chromatic aberration, which is suitable for wide-band imaging and focusing, is developed by using unique surface control technology.

• Numerical aperture: 0.01-0.5
• Lens surface: spherical, parabolic, hyperboloid and other precise control
• Surface error: 3%
• Sub-aperture: 20 m-4 mm
• Filling factor: > 98%
• Integration degree :800-600/cm2
• Sub-aperture shape: quadrilateral, hexagonal, circular, rectangular, etc.
• Lens Materials: Fused quartz, Silicon, Ge, Znse, K9, CaF2, PMMA, PC, etc.

1.1 Wavefront detection

The wavefront sensor system based on MLA wavefront segmentation is applied in aerospace, ophthalmology and other research fields to achieve high precision, non-destructive and on-line wavefront detection.

1.2 Infrared Focal Plane Light Concentration

The MLA is used to collect and converge the light projected outside the photosensitive, so as to improve the efficiency of the detector.

1.3 Beam collimation, shaping and 3D imaging

The MLA is used to collimate, shape, focus light and imaging, and the miniaturized optical coupling, scanning, anti-counterfeiting film, 3D display, integrated imaging, optical field camera and other systems are constructed.

Part-numbering:

e.g.: SGD-MLA-0008SQ: Microlense array 8µm pitch square sub-aperture shape.
SGD-MLA-1360HX: Microlense array 1360µm pitch hexagon sub-aperture shape

2. Phase Plate

The micro-optical phase plate can accurately simulate, correct or modulate the phase of the system, which has the advantages of accurate, compact and convenient adjustment. Single-order and multi-order aberration phase devices can be generated for static aberration correction of various optical systems. Typical devices include random planar phase plate, spiral phase plate and composite phase plate, which are used in quantum communication, particle manipulation and free space optical communication.

Please call for other wavelengths.

3. Diffractive Optical Element (DOE)

The research team can provide standard diffraction devices and accept customization to achieve high diffraction efficiency, high uniformity beam transformation, shaping, beam splitting and phase modulation. Applications: Laser processing, laser beam shaping, laser medical treatment, mobile intelligent equipment, human-computer natural interaction somatosensation, gesture control, three-dimensional measurement, face recognition system, etc.

• Element Aperture: < 100mm
• Element Materials: fused quartz, BK7, silicon, Ge, Znse, K9, CaF2, sapphire, etc
• Feature Size: 100 Nanometer to micron
• Quantization Step: Multi-step
• Diffraction Angle: 100 degrees.

3.1 Multi-line structured light module

Diversification of wavelength, line number, angle and high uniformity, high light efficiency, compact structure, used for high-precision 3D measurement.

3.2 Human-computer interaction structured light

High uniformity random lattices satisfying human eye safety are used for security access control system, somatosensory equipment, identification and unlocking, etc.

3.3 Location frame module

Large angle, various complex patterns, small stray light, used for positioning, indication, calibration, etc.

1. Beam splitter

1-dimensional beam splitter

2-dimensional beam splitter

1-dimensional Beam Splitter Spot Distribution

2-dimensional Beam Splitter Spot Distribution

2. Structured Light for Tools

(1) Single Line, Multiline, Grid and Random Speckle

Item-Wavelength-Angle	Illustration
SGD-SL- L1-650-43	Single Line
SGD-SL- L1-650- 60
SGD-SL-L1-650 -90
SGD-SL-L1-905-60
SGD-SL-L1-905-100
SGD-SL-L3-650-67×17	Multiline
SGD-SL-L7-650-23×50
SGD-SL-L7-808-33
SGD-SL-L11-650-30
SGD-SL-L41-650-55×43
SGD-SL-L25-808-33
SGD-SL-C-532-15	Cross
SGD-SL-C-532-60
SGD-SL-C-650-60
SGD-SL-LK-532-75	Cross with scale
SGD-SL-CK-525-75
SGD-SL-CK-650-75
SGD-SL-A-635-47×4.6
SGD-SL-G-532-8×8-8	Grid
SGD-SL-G-532-8×8-36
SGD-SL-G-450 -10×10-53
SGD-SL-G-650 -10×10-2.9
SGD-DWX-650-10
SGD-DWX-650-15
SGD-SL-830-NJ-63×51	Random Speckle

(2)Positioning and Human-computer Interaction Structure

Item-Wavelength-Angle	Pattern	Item	Pattern
SGD-DWK-520-21		SGD-PT-JP-F
SGD-DWK-520-50.8´39		SGD-PT-JP-I
SGD-DWK-520-60´45
SGD-DWK-650-30×21		SGD-PT-JP-I
SGD-DWK-650-40×31		SGD-PT-JP-SB
SGD-DWK-650-42×24		SGD-PT-TY-WY
SGD-DWK-650-45×45		SGD-PT-TY-DT
SGD-DWK-635-47×35		SGD-PT-G
SGD-DWK-650-53×39		SGD-PT-Q
SGD-DWK-650-45		SGD-PT-S
SGD-DWK-650-60×45
SGD-DWK-650-70×50

Beam shaping