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Fingerprint Identification Algorithm Overview: Based on nearly two decades’ biometric recognition industry experience and innovative technologies accumulation, Miaxis's core software fingerprint recognition system platform, which adopts world-renowned Justouch® fingerprint algorithm, has been deeply trusted by 2000+ financial institutions, particularly, the head offices of China's five largest state-owned banks and commercial banks with occupying over 60% domestic market share. Furthermore, Miaxis patented Justouch® fingerprint recognition algorithm is full qualified by the Chinese Ministry of Public Security and Indian Government, also recognized by international competitions and compliances including STQC, FVC and NIST MINEX III. Fingerprint Detection Algorithm Features: Intelligent Image Processing The algorithm performs intelligent image processing according to the habits and thinking methods of human observation and discrimination. Using the genetic experience method capable of self-accumulation to faithfully express the characteristics of the original fingerprint image, and effectively classifies and screens the features to ensure their distinctiveness, stability and independence, etc. High performance according to national and international standards National standard by Chinese Ministry of Public Security for Chinese ID card program -EER < 0.1%, -FAR<0.05% (at a fixed FRR=0.5% ),-1:1 matching <0.5s International benchmark standard NIST MINEX III compliant Miaxis's fingerprint template generator algorithm -interoperable PIV Level 1 MINEX III-compatible -accurate native PIV Level 2 MINEX III compliant template generator Great portability All source codes are fully written in C/VC,which provides great portability to virtually any platform.For instance, embedded chip platforms (such as DSP,ARM,STM32,N329XX,I94113/I94124, GD32FFPR,ACH512); mobile platforms such as IOS and Android; X86 platforms such as Windows, LINUX, UNIX etc. Biometric standards support. ISO 19794-2&ANSI 378 Template Options Fast Extracting & Matching Speed Easily processing and verifying a 500dpi fingerprint image with size 256×256 pixels in 60ms Small-footprint The algorithm code length is less than 48 KB, and the data memory space is less than 64 KB.It's the world's simplified fingerprint matching algorithm. As one of biometric device suppliers, we will do our best to meet all the needs of customers.

Minimum Order: 1 bags

Thumb Scanner Machine Overview MIAXIS® Model SM-91M is a FBI PIV&Mobile ID FAP20 certified optical Fingerprint Authentication Scanner. It's a compact & portable fingerprint collection device for easy integration with new or existing applications. Powered by USB 2.0/3.0 and supports standard SDK with SBI (MDS) for Windows, Linux and Android operating systems. Ideal for secure biometric authentication and national e-ID programs. Biometric Thumb Machine Features: MOSIP Compliant MOSIP SBI2.0 compliant fingerprint device FBI Certificates: FBI PIV and FBI Mobile ID FAP20 certificates Biometric standard: ISO 19794-4, ANSI 381, WSQ, JPEG, RAW, BMP, MINEX III compliance Live Fingerprint Detection Machine-learning-based live finger detection technology to differentiate fake fingers Auto-reject fake materials including silicon, paper, rubber and more Easy Integration SDKs available for Android, MS Windows compatible Plug&play USB powered device Advanced Algorithm Template options: MIAXIS, ISO 19794-2 & ANSI 378 Miaxis proprietary Justouch® fingerprint extractor & matcher passed NIST MINEX III compliance Value-added customised APIs for software integration Dustproof and Waterproof IP54 dustproof and waterproof Biometric Thumb Machine Specification: Specification Detail Sensor type Optical Resolution 500dpi Active platen area 15.24mm x 20.32mm Image Size 300*400 pixel FAP (fingerprint acquisition profile) FAP20 Security FTM based, MOSIP L1 Device, SBI 2.0 Compliance FBI-PIV, MOSIP L1, CE & FCC certified Maximum Acquisition time (Placement to Template) <3s Grey scale 8 bit (256 levels ) Live finger detection Yes Platen Ingress Protection IP54 (platern surface) ESD immunity +/-8kV contact discharge;+/-15kV air discharge Supply voltage DC 5V±5% Communication interface USB2.0 Operating Temperature -10°C to +45°C Storage Temperature -20°C to +50°C Operating humidity 20%RH～90%RH Product size 60*40*21.9mm (L*W*H) Weight 80g Operating system environment Windows XP/Windows 7/ Windows 10 Android 4.0/5.0/6.0 If you want to know more about biometric device thumb scanner price, please visit our website. As one of biometric machine manufacturers, we will do our best to meet all the needs of customers.

Minimum Order: 1 bags

Miaxis Biometric SDK (Software Development Kit) is a powerful tool, MIAXIS has a proprietary Justouch® algorithm that boasts high accuracy and exceptional speed, and support live finer detection , our fingerprint algorithm in MINEX III certified template matchers ranked No.7. that allows developers to integrate our advanced biometric technologies into their own applications. SDK biometric fingerprint supports multiple biometric modalities, including fingerprint, face, and iris recognition. ours SDK, is easy to integrated biometric terminals from any brands for a broad range of identity verification via biometric data use cases,can build secure, efficient, and user-friendly biometric solutions for various applications. HOW DO BIOMETRIC SDK WORK? A Biometric Software Development Kit (SDK) is a set of software tools and programs that developers use to create applications for specific software, hardware platforms or operating systems. Here's a general idea of how a Biometric SDK works: Data Capture: The SDK interacts with the biometric device (like a fingerprint scanner) to capture the biometric data (like a fingerprint image). Data Processing: The SDK then processes this data, which may involve cleaning up the image, removing noise, and identifying unique features in the data, also known as minutiae in fingerprint biometrics. Data Storage: The processed data is then converted into a format that can be stored in a database. This is usually a template that represents the unique features of the biometric data. Data Matching: When identification or verification is needed, the SDK captures new biometric data, processes it into a template, and then compares this template with the ones in the database. If a match is found, the individual is identified or verified. The Biometric SDK essentially provides the algorithms and interfaces needed to perform these steps, allowing developers to integrate biometric functionality into their own applications. WHAT ARE THE ADVANTAGES OF USING BIOMETRIC SDK? Customization: Fingerprint SDKs allow developers to build custom applications tailored to specific needs, integrating biometric features seamlessly. Versatility: Biometric SDKs often support multiple biometric modalities, such as fingerprint, face, and iris recognition, providing flexibility in application development. Time and Cost Efficiency: Using a fingerprint recognition sdk can significantly reduce development time and cost as the complex algorithms and interfaces are already provided. Security Enhancement: Biometric SDKs can help enhance the security of an application by enabling biometric authentication, which is harder to forge or steal than traditional passwords. Improved User Experience: Biometric authentication is often quicker and more convenient than remembering and typing passwords, improving the user experience. Easy Integration: Fingerprint recognition SDKs are designed to be easily integrated into existing systems, making the implementation process smoother. WHAT TYPES OF BIOMETRICS CAN BE SUPPORTED BY A BIOMETRIC SDK? Fingerprint Recognition: This is the most common type of biometric identification. The SDK can capture, store, and compare fingerprints. Facial Recognition: The SDK can analyze facial features to identify individuals. Iris Recognition: This involves recognizing the unique patterns in an individual’s iris. Voice Recognition: The SDK can analyze voice patterns for identification. Hand Geometry: This involves measuring and analyzing the shape of the hand. Retina Scan: This involves scanning the unique patterns of blood vessels in the retina. Palm Vein Recognition: This involves recognizing the unique vein patterns in an individual’s palm. DNA Matching: Some advanced SDKs can also support DNA matching. Signature Recognition: This involves recognizing the unique way an individual signs their name. Gait Recognition: This involves recognizing the unique way an individual walks. Keystroke Dynamics: This involves recognizing the unique way an individual types on a keyboard. Ear Recognition: This involves recognizing the unique shape and features of an individual's ear. As one of biometric reader manufacturers, we will do our best to meet all the needs of customers.

Minimum Order: 1 bags

SM-91M Type C Fingerprint Scanner Overview: Miaxis® SM-91M(TMF20) device is a FBI PIV&Mobile ID FAP20 certified single optical Fingerprint Scanner. It's a compact & portable fingerprint collection device for easy integration with new or existing applications. Powered by USB 2.0/3.0 and supports Windows, Linux and Android operating systems. Ideal for biometric authentication and personal identity verification programs. TMF20 is marketing model in india, designed for India UIDAI Aadhaar Biometric ID program, STQC, FBI-PIV, WHQL certified. SM-91M Fingerprint Scanner Type C Feature: 500dpi resolution Lightweight and durable design for portable use High-quality fingerprint image FBI-PIV & Mobile ID FAP20 certified MIAXIS, ISO 19794-2&ANSI 378 Template Options Standard USB interface, plug&play device,1.5m cable length. IP54 rated dust and water protection design Live finger detection technology SM-91M Type C Fingerprint Scanner Specification: Specification Detail Sensor type Optical Resolution 500dpi Active platen area 15.24mm x 20.32mm FAP (fingerprint acquisition profile) FAP20 Maximum Acquisition time (Placement to Template) <3s Grey scale 8 bit (256 levels ) Live finger detection Yes Platen Ingress Protection IP54 (platern surface) ESD immunity +/-8kV contact discharge;+/-15kV air discharge Supply voltage DC 5V±5% Communication interface USB2.0 Operating Temperature -10°C to +45°C Storage Temperature -20°C to +50°C Operating humidity 20%RH～90%RH Product size 60*40*21.9mm (L*W*H) Weight 80g Operating system environment Windows XP/Windows 7/ Windows 10 Android 4.0/5.0/6.0 If you want to know more about fingerprint machine price, please visit our website. As a biometric device company, we will do our best to meet all the needs of customers.

Minimum Order: 1 bags

Miaxis SM-93 Biometric Finger Machine Overview: Miaxis SM-93 is an FBI-PIV&Mobile ID FAP30 certified optical Fingerprint Authentication Scanner. It's a compact & portable fingerprint collection device for easy integration with new or existing applications. Powered by USB 2.0 and supports Windows, Linux and Android operating systems. Ideal for secure biometric authentication and national e-ID programs. Biometric Finger Machine Features: Certificates FBI PIV and FBI Mobile ID FAP30 certificates Biometric standard: ISO 19794, ANSI 381, ANSI-378, WSQ, JPEG2000, MINEX III compliance Live Fingerprint Detection Machine-learning-based live finger detection technology to differentiate fake fingers Auto-reject fake materials including silicon, paper, rubber and more Easy Integration SDKs available for Android, MS Windows and Linux compatible Plug&play USB powered device Advanced Algorithm Template options: MIAXIS, ISO 19794-2 & ANSI 378 Miaxis proprietary Justouch® fingerprint extractor & matcher passed NIST MINEX III compliance Value-added customised APIs for software integration Dustproof and Waterproof IP65 dustproof and waterproof Biometric Finger Machine Specification: Sensor Type Optical Sensor Dimensions 72×46.0×25.5mm(L×W×H) Image Resolution 500dpi Operating Temperature -10℃ to +50℃ Image Size 400×500 pixels Operating Humidity 20%RH - 90% RH Image Standard FBI PIV&FAP30 Supply Voltage DC 5V±5%(USB powered) Live Finger Detection Yes Supply Current ≤200mA(USB powered) ≤50mA(USB powered at sleep mode) Sensing Area 20.32×25.4mm Ingress Protection IP65 (Sensor Surface) Image Gray Scale 8bit, 256 levels Support OS Linux Kernel 4.15 or higher; Windows 7 or higher; Android 4.1 or higher Image Format WSQ, JPEG2000, RAW, BMP, ISO 1974-4, ANSI 381 ESD Immunity ±8kV contact discharge ±15kV air discharge(Sensor Surface) If you want to know more about biometric finger machine price, biometric sensor price, finger reader price, please visit our website. As a biometric machine company, we will do our best to meet all the needs of customers.

Minimum Order: 1 bags

It is firmly linked with the building structure, and is composed of anchor solid, reinforced boom, anti-seismic connecting member and anti-seismic diagonal brace; Taking the seismic force as the main load and protecting the mechanical and electrical pipelines and equipment in the event of the earthquake with the intensity of the earthquake in the region, it can reduce the earthquake damage, reduce and prevent the occurrence of secondary disasters as much as possible, so as to achieve the purpose of reducing casualties and property losses. Types of Seismic Support And Hanger Product Seismic Hangers Comprising anchor bodies, reinforced suspension rods, seismic-resistant connectors, and seismic bracing, it stands strong against seismic forces. Designed as the primary safeguard against local seismic hazards, it protects electrical and mechanical systems and equipment during earthquakes, reducing structural damage and minimizing secondary disaster risks. Two-Way Anti-seismic bracing for mechanical equipment Experience unmatched stability with our Two-Way Anti-Seismic Support Hanger. Its secure connection, featuring anchor bodies, reinforced suspension rods, seismic-resistant connectors, and seismic bracing, ensures your structure's strength. As your primary defense against local seismic forces, it shields electrical and mechanical systems and equipment from earthquake impacts, reducing damage and preventing secondary disasters. Seismic Support and Hanger Products: A Necessity in Earthquake-Prone Areas Seismic support and hanger products are essential in earthquake-prone areas. These products help ensure the stability and safety of structures during seismic events. By securely attaching and suspending building components, such as piping and mechanical systems, they prevent damage and minimize the risk of collapse. Investing in these products is crucial for the protection of both lives and infrastructure in regions prone to earthquakes. We provide seismic bracing for plumbing, seismic wire rope cable bracing, b line seismic bracing, ceiling seismic bracing, earthquake bracing for fire sprinkler, fire sprinkler bracing, anti seismic devices, etc. For more information, please feel free to contact us!

Minimum Order: 10 long tons

BIBO( BiB3O6) Crystal is a newly developed Nonlinear Optical Crystal. It features a large effective nonlinear coefficient, a high damage threshold, and inertness to moisture. Its nonlinear coefficient is 3.5-4 times higher than that of LBO, and 1.5-2 times higher than that of BBO. It is a promising SHG crystal to generate blue laser output. Applications of BIBO Laser Crystals SHG and THG for medium and high power Nd: lasers at 1064nm SHG and THG of high power Nd: lasers at 1342nm & 1319nm SHG for the Nd: Lasers at 914nm & 946nm Optical Parametric Amplifiers (OPA) and Oscillators (OPO) application Advantages of BIBO Laser Crystals Large effective nonlinear coefficient High damage threshold Inertness to moisture Specifications of BIBO Laser Crystals Tolerance of cutting angle △θ≤±0.25°,△φ≤±0.25° Dimension tolerance (W±0.1mm)x(H±0.1mm)x(L+0.5mm/-0.1mm) (L≥2.5mm) (W±0.1mm)x(H±0.1mm)x(L+0.1mm/-0.1 , mm) (L<2.5mm) Transmitting wavefront distortion λ/8 @ 633 nm Clear aperture > 90% central area Flatness λ/8 @ 633 nm Surface quality:Scratch/Dig 10/5 to MIL-O-13830A Parallelism better than 20 arc seconds Perpendicularity 5 arc minutes Clear Aperture: > 90% Chamfer: < 0.1 mm @ 45° Size Upon customer request Coating AR/PR coating upon customer’s request Damage Threshold >0.3GW/cm2 at 1064nm, TEM00, 10ns, 10Hz Quality Warranty Period One year under proper use Chemical and Structure Properties of BIBO Crystal Crystal Structure Monoclinic, Point Group 2 Lattice Parameter a=7.116Å,b=4.993Å, c=6.508Å, β=105.62° ,Z=2 Melting Point 726°C Melting Point 726°C Density 5.033 g/cm3 Thermal Expansion Coefficient αa=4.8x10^-5 /K, αb=4.4x10^-6 /K, αc=-2.69x10^-5 /K Optical and Nonlinear Optical Properties of BIBO Crystal Transparency Range 286-2500nm Absorption Coefficient <0.1%/cm at 1064nm Physical Axis X//b,(Z,a)=31.6°,(Y,c)=47.2° SHG of 1064/532 Phase matching angle:168.9° from the z-axis in the YZ plane Deff:3.0+/-0.1 pm/V Angular acceptance:2.32 arad-cm Walk-off angle:25.6 rad temperature acceptance:2.17°C-cm Sellmeier Coefficients ni2(λ)=A+B / (λ2-C)-Dλ2 (λ in um) A B C D n1 3.6545(4) 0.0511(2) 0.0371(3) 0.0226(1) n2 3.0740(3) 0.0323(1) 0.0316(3) 0.01337(6) n3 3.1685(3) 0.0373(1) 0.0346(3) 0.01750(8)

Minimum Order: 1 bags

BGO (Bi4Ge3O12) bismuth germanate crystal is one of the most common oxide scintillation materials. It exhibits stable physical and chemical properties, high mechanical strength, high density, high refractive index, and resistance to harsh environments. With its high stopping power, high scintillation efficiency, good energy resolution and non-hygroscopic, BGO is a good scintillation material for a wide range of applications in high energy physics, space physics, medicine, geological exploration and other industries. OST Photonics can manufacture BGO arrays according to our customers’ different design options in terms of pixel size, the number of pixels, reflector materials and crystal surface finishes. We offer a variety of design options and reflector materials to optimize the array performance. Our manufacturing process can ensure high light output as well as excellent pixel to pixel uniformity with minimal crosstalk. Furthermore, offset BGO arrays (multilayer BGO arrays) are also available upon requests. Applications of BGO Array   Positron emission tomography (PET) High-energy physics Nuclear medicine Geological exploration Gamma-ray spectroscopy Advantages of BGO Array   High Z Good photopeak to Compton ratio The scintillator of choice for neutron activation analysis and active Compton shields High density Specifications of BGO Array Number of pixels: 4x4; 8x8; 16x16; 24x24; 30x30 etc. (customized upon request) Minimal pixel size: 0.2 mm x 0.2 mm Reflector Types and Thicknesses of BGO Array Material Thickness of reflector material + adhesive BaSO4 ≥0.1 mm ESR 0.08 mm E60 0.075 mm TiO2 ≥0.1 mm Properties of BGO Crystal Density [g/cm3] 7.13 Melting point [K] 1323 Thermal expansion coefficient [C-1] 7 x 10-6 Cleavage plane None Hardness (Mho) 5 Hygroscopic No The wavelength of emission max. [nm] 480 Refractive index @ emission max 2.15 Primary decay time [ns] 300 Light yield [photons/keVγ] 8-10 Photoelectron yield [% of NaI(Tl)] (for γ-rays) 15–20 Afterglow 0.005%@3ms Quality Control for BGO Array: Dimension testing Relative light output testing Pixel light output uniformity: ≤10%；≤20%；≤30% or on request Energy resolution testing Scatter map.

Minimum Order: 1 bags

BGO scintillation crystal is one of the most common oxide scintillation materials. It exhibits stable physical and chemical properties, high mechanical strength, high density, high refractive index, and resistance to harsh environments. With its high stopping power, high scintillation efficiency, good energy resolution and non-hygroscopic, BGO is a good scintillation material for a wide range of applications in high energy physics, space physics, medicine, geological exploration and other industries. OST Photonics can supply BGO crystals, BGO arrays and BGO scintillation detector upon request. We can offer a variety of design options and reflector materials to optimize array performance and ensure the array's high light output, excellent uniformity and minimal crosstalk. Application of BGO Scintillators (Bismuth Germanate Scintillators) Positron emission tomography (PET) High-energy physics Nuclear medicine Geological exploration Gamma-ray spectroscopy Advantages of BGO Scintillators (Bismuth Germanate Scintillators) High Z Good photopeak to Compton ratio The scintillator of choice for neutron activation analysis and active Compton shields High density The Ability of OST Photonics Maximum Size: ɸ76mm x 300mm, 40mm x 80mm x 200mm Available items: monolithic crystal, pixellated array, scintillation detector Properties of BGO Scintillators (Bismuth Germanate Scintillators) Density [g/cm3] 7.13 Melting point [K] 1323 Thermal expansion coefficient [C-1] 7 x 10-6 Cleavage plane None Hardness (Mohs) 5 Hygroscopic No The wavelength of emission max. [nm] 480 Refractive index @ emission max 2.15 Primary decay time [ns] 300 Light yield [photons/keVγ] 8-10 Photoelectron yield [% of NaI(Tl)] (for γ-rays) 15–20 Afterglow 0.005%@3ms

Minimum Order: 1 bags

BaTiO3 single crystal has excellent photorefractive properties, high self- pumped phase conjugate reflectivity and two-wave mixing (optical amplification) efficiency, and has huge potential application prospects in optical information storage. At the same time it is also an important substrate substrate material. OST Photonics offers high quality BaTiO3 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements. Application of BaTiO3 Substrates Optical information storage Substrate for epitaxial growth Advantages of BaTiO3 Substrates Excellent photo-refractive properties Excellent ferroelectric properties High self-pumped phase conjugate reflectivity High two-wave mixing (optical amplification) efficiency Ability of BaTiO3 Substrates Orientation:<100>,<001& , gt;,<110>,<111>, etc. Dimension: 10x10mm, 10x5mm, 5x5mm, etc. Thickness: 0.5mm, 1.0mm, etc. Available items: substrates, blanks and customized optics Specification and Properties of BaTiO3 Substrates　 Crystal System Tetragona(4m):  13℃< T<132℃ a=3.99Å, c= 4.04Å (at 26℃) Density 6.02 g/cm3 Melt Point 1612 ℃ Growth Method TSSG (Top Seeded Solution Growth) Dielectric Constant ea=3700 ec=135(unclamped) ea=2400 ec=60 (clamped) Refractive Index 515nm 633nm 800nm no 2.4912 2.4160 2.3681 ne 2.4247 2.3630 2.3235 Transmit Wavelengths 0.43-6.30μm Photoelectric Coefficient rT13=8±2 pm/V  rT33=105±10 pm/V  rT42=1300±100 pm/V Reflectivity of SPPC (at 0 deg. cut） 50 - 70 % for λ = 515 nm(Ce:BaTiO3) 40 - 60 % (Pure BaTiO3) for λ = 515 nm 50 - 80 % for λ = 633 nm(Ce:BaTiO3) 40 - 60 % for λ = 633 nm (Pure BaTiO3) Two-wave Mixing Coupling Constant 10 -40 cm-1 Absorption Loss λ: 515nm λ: 633nm λ: 800nm α: 0.285 cm-1 α: 0.108 cm-1 α: 0.033 cm-1 Orientation <100>,<001>,<110>,<111>, etc. Orientation Tolerance ±0.5° or better Dimension 10x10mm, 10x5mm, 5x5mm, etc. Dimension Tolerance ±0.1 mm or better Thickness 0.5mm, 1.0mm, etc. Thickness Tolerance ±0.05 mm or better Surface Finish Single side polished (SSP)/Double sides polished (DSP) Surface Roughness Ra<10Å Atomic Particle Microscopy (AFM) test report can be provided. Package Class 100 clean bag, Class 1000 super clean room Note: The BTO substrates are poled, but with domains BTO single crystal must be stored in temperature above 13 ℃ to avoid phase transition which will cause twin or domain inside crystal

Minimum Order: 1 bags

BaF2 barium fluoride crystal is the scintillation crystal with the fastest decay time found so far, it has a fast component with a scintillation decay time of 0.9ns and a peak emission wavelength of 220nm. BaF2 scintillator has a wide application prospect in the fields of high energy physics, nuclear physics and nuclear medicine. OST Photonics can supply BaF2 crystals in different specifications upon your request. Application of BaF2 Scintillators (Barium Fluoride Scintillators) High energy physics Nuclear physics Nuclear medicine UV and IR optical windows Advantages of BaF2 Scintillators (Barium Fluoride Scintillators) Fastest decay time High density Refractive index matching The Ability of OST Photonics Maximum Size: ɸ120mm x 200mm Available items: monolithic crystal Properties of BaF2 Scintillators (Barium Fluoride Scintillators) Density (g/cm3) 4.89 Melting Point (℃) 1280 Crystal Structure Cubic Decay Constant (ns) 620 slow; 0.6 fast Cleavage Plane (111) Index of Refraction 1.4624@2.58μm / 1.3936@10.35μm Reflection Loss (both surfaces) 6.8% @2.58μm / 5.3% @10.35μm The wavelength of Max Emission (nm) 310 slow; 220 fast Hardness (Mho) 3 Hygroscopicity Slightly Radiation Length (mm) 20.6 Light Output of NaI(Tl) 20% slow; 4% fast Transmittance Range (μm) 0.15~14 Transmittance >94% @0.35 ~ 10.8μm

Minimum Order: 1 bags

Anamorphic prisms are utilized to rectify the asymmetric and elliptical beams generated by laser diodes, resulting in nearly circular beam shapes. By utilizing an anamorphic prism, the beam size can be altered along one axis while remaining unaltered along the other axis, allowing for expansion, reduction or reshaping of the beam. Specifications of Anamorphic Prisms Material: N-SF11, H-ZF13 Grade A optical Glass Dimension Tolerance (mm): +/-0.2 (General), +0/-0.1 (High Precision) Theta: q = 29°27'±30" Flatness (per 25mm@633nm): λ/2(General), λ/10 (High Precision) Clear Aperture: >80% (small size),>90%(large size) Surface Quality: 60/40 (General), 10/5 (High Precision) Bevel (mm): 0.1-0.5 Coating on input and output sides: MgF2 single layer on perpendicular surface or AR coating--Unpon Request Note for Anamorphic Prisms Anamorphic prism is available upon requirement. Note: The prism is counted quantity at every piece. It shall be used as pair (two pieces).

Minimum Order: 1 bags

α-BBO (α-BaB2O4) is a negative uniaxial crystal which has large birefringence over a broad transparent range of 190nm to 3500nm. α-BBO is an excellent crystal especially in UV and high power applications. The physical, chemical, thermal, and optical properties of alpha-bibo nonlinear crystal are similar to those of Beta-BBO. However, there is no second order nonlinear effect in alpha-BBO crystal due to the centrosymmetry in its crystal structure and thus it has no use for second order nonlinear optical processes. Instead, alpha-BBO is widely used for fabrication of polarizers, polarizing beam displacers, phase retarders, birefringent plates, and time delay compensators especially those for UV and high power lasers. Applications of α-BBO Crystals High power Beam displacers for isolators. High power Polarizer Time delay compensators Advantages of α-BBO Crystals High UV transmittance Large birefringence High damage threshold Specifications of α-BBO Crystals Tolerance of cutting angle △θ≤±0.25°,△φ≤±0.25° Dimension To , lerance ±0.1mm Flatness λ/10 @ 632.8nm Wavefront distortion λ/4@ 632.8nm Surface Quality 10/5 per MIL-O-13830B Parallelism 10″ Perpendicularity 10′ Bevel/Chamfer <0.1mm@45deg. Chips <0.1mm Clear Aperture >95% Coating AR/HR (IAD, EB, IBS) coating upon customer’s request Damage Threshold 750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz Quality Warranty Period One year under proper use   Basic Properties of α-BBO Crystals Transparency Range 190-3500nm Hygroscopic Susceptibility Low Density 3.85g/cm3 Mohs Hardness 4.5 Thermal Expansion Coefficients（/℃） 9.3×10^-6（C） 9.5×10^-6（A） Damage Threshold 1GW Refractive Indices no=1.6776，ne=1.5534，at 532nm no=1.6579，ne=1.5379，at 1064nm Sellmeier Equation（λ in μm） no²=2.7471+0.01878/(λ²-0.01822)-0.01354λ² , ne²=2.37153+0.01224/(λ²-0.01667)-0.01516λ²

Minimum Order: 1 bags

Achromatic lenses are an essential component in many optical systems, and OST Photonics takes pride in offering a wide range of high-quality options to meet the needs of our customers. Our achromatic lenses are crafted from top-grade materials such as BK7, fused silica, and CaF2 - ensuring exceptional clarity and precision. Basics about Achromatic Doublet Lens LENSES MATERIALS ILLUSTRATION PROPERTIES AND APPLICATIONS ACHROMATIC LENS Combinations of Two Optical Grade Glasses These lenses have considerably reduced values of spherical aberrations. Best used to replace single components where performance must be improved. Specifications of Achromatic Lenses Diameter size smallest 3 mm Diameter tolerance +0.0, -0.05mm Parallel focal length tolerance ±2% Centration 5 arc minutes Clear aperture >80% Surface figure: power(n) <3 Surface figure: irregularity(n) <0.5 Surface quality 40/20 scratch and dig Bevel < 0.2 mm x 45° Coating Single layer MgF2 broadband AR Note for Achromatic Lenses Lens made from materials such as N-BK7, Fused Silica, Sapphire, CaF2, Borofloat, or other optical glass supplied by Schott and Chinese CDGM is available upon request. Custom-made Lenses at any size from Φ3.0mm to Φ200mm clear aperture are available. Besides round, Lenses at the shape of a square are available. 90% clear aperture is available upon request. A better bevel is available upon request. A lens with Anti-Reflective (AR), Single layer MgF2 coating are available.

Minimum Order: 1 bags