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aerospace optical component,High Precision Achromatic Cemented Φ12.7mm FL75mm Optical Glass Doublet

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Categories	Aspheric Lenses
Brand	FELIX GLASS optical glass Manufacturing base
Model	FG-ACH-DOUB-12.7-FL75
Material	Optical crown glass + flint glass cemented doublet
Core Parameter Diameter	12.7mm, Focal Length 75mm, Achromatic design for visible & near-infrared band
FOB port	SHENGZHEN SHANGHAI GUANGZHOU
Terms of Payment	L/C, D/A, D/P, Western Union
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Aerospace High Precision Achromatic Cemented Optical Glass Doublet Lens (Φ12.7mm FL75mm)

Felix Glass aerospace-grade achromatic cemented doublet lens is composed of crown optical glass and flint optical glass via high-precision optical cementing process. The matched optical dispersion coefficient of two glass types effectively eliminates axial chromatic aberration within visible to near-infrared working band, avoiding image color fringe and distortion which affects aerospace detection precision.

Ultra-precision grinding and polishing technology ensures high surface figure accuracy, low surface roughness, and stable focal length consistency. The optical cement layer features high temperature resistance and low thermal expansion, adapting to drastic temperature change environment in aerospace flight equipment. Custom broadband AR anti-reflection coating can be deposited on both outer surfaces to reduce stray light reflection and improve light transmittance for long-distance aerospace optical detection.

Core Optical Specifications

- Lens Structure: Two-piece cemented achromatic doublet

- Optical Material: Crown optical glass + flint optical glass

- Clear Aperture Diameter: 12.7 mm

- Effective Focal Length (EFL): 75 mm

- Working Spectrum: 400nm – 1100nm visible & near-infrared

- Chromatic Aberration Correction: Full achromatic design for target band

- Surface Flatness: ≤ λ/10 @632.8nm aerospace high precision standard

- Surface Quality: 20-10 scratch-dig aerospace grade

- Cement Layer: High temperature resistant optical glue, stable from -60℃ ~ +150℃

- Coating: Optional broadband AR coating matched to aerospace working wavelength

- Edge Treatment: Custom edge chamfer, black edge coating to suppress stray light

Core Product Advantages

1. Achromatic double-glass cemented structure completely eliminates chromatic aberration, guaranteeing high-fidelity imaging for aerospace precision detection

2. Aerospace ultra-precision polishing standard, ultra-flat optical surface, consistent focal length batch stability

3. Low thermal expansion optical glass & high-temperature resistant cement, stable optical performance under aerospace extreme temperature fluctuation

4. Optional broadband AR coating + black edge treatment, effectively restrain stray light interference and improve signal-to-noise ratio of aerospace optical systems

5. Strict raw material impurity control, no bubble/striation inside glass substrate, meet aerospace A-level optical component standards

6. Fully customizable aperture, focal length, coating spectrum and edge shape to match satellite, airborne detection optical modules

Typical Application Scenarios

- Satellite remote sensing optical detection modules

- Airborne aerospace reconnaissance imaging equipment

- Aerospace star tracker positioning optical systems

- Aerospace laser ranging & guidance optical assemblies

- High-precision aerospace spectral analysis instruments

- Unmanned aerial vehicle (UAV) aerospace grade imaging optical lenses

OEM Manufacturing Capability

We provide full one-stop aerospace optical processing including optical glass blank cutting, ultra-precision CNC grinding, high-precision polishing, vacuum optical cementing, broadband AR coating, black edge treatment, strict chromatic aberration testing and surface figure inspection.

Prototype sampling, small-batch trial production and mass manufacturing are supported. Every aerospace achromatic cemented lens is fully tested to meet aerospace grade dimensional, spectral and stability requirements before delivery.

FAQ

1. What is the core advantage of achromatic cemented doublet lens for aerospace equipment?

The matched crown & flint glass eliminates chromatic aberration, removing color fringe distortion during long-distance aerospace imaging; low thermal expansion material ensures stable focal length under extreme high-low temperature flight environment.

2. What temperature environment can this 12.7mm FL75mm achromatic lens adapt to?

The high-temperature resistant optical cement and low-expansion glass maintain stable optical performance from -60℃ to +150℃, matching aerospace high altitude flight temperature variation demand.

3. Can I customize coating and lens parameters for aerospace optical systems?

Yes, we support custom aperture, focal length, AR coating spectrum, black edge coating and edge chamfer to fit satellite, airborne and UAV aerospace optical modules.

4. What aerospace equipment is this achromatic cemented lens suitable for?

It applies to satellite remote sensing cameras, airborne reconnaissance imagers, aerospace star trackers, laser ranging guidance assemblies and aerospace spectral analysis instruments.

5. Do you provide aerospace-grade inspection reports for mass production?

We supply full aerospace optical test data including chromatic aberration, surface flatness, transmittance and thermal stability inspection reports for every batch of cemented lenses.

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What is your MOQ for custom optical glass and display glass parts?: Felix Glass offers highly flexible MOQ to support client projects, including prototype testing, small batch trial orders and large-volume mass production. All products can be fully customized according to your drawings, tolerances and application standards. Send us your specs to get an accurate price quote within 24 hours.

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What is the production lead time for custom optical glass components?: What is the production lead time for custom optical glass components?
Answer: The lead time for standard samples is 3–7 business days, while mass production takes 15–25 business days, depending on product complexity and order volume. We provide reliable, rapid delivery for orders serving the industrial, medical, automotive, and aerospace sectors. Please submit your project details to receive an accurate delivery schedule.

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Do you offer one-stop custom optical glass processing services?: Yes. We provide a full range of in-house processing services, including CNC machining, precision grinding, optical polishing, vacuum coating (AR, AF, AG, IR), tempering, and screen printing. Every step—from raw material to finished product—is carried out within our own facility. Please let us know your requirements, and we will provide you with the most cost-effective solution.