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Sapphire Optical Polish CNC High Precision Aspherical Lenses Coated

Name: Sapphire Optical Polish CNC High Precision Aspherical Lenses Coated
Availability: InStock

Rangefinder Model: 1-1000mm Made in China

Rangefinder made of optical glass — Type Geodimeter, Usage Optical. MOQ 1 piece, US$1.00 – 5.00/piece. Verified factory; QC & shipping by GoodsFromChina.

US$1.00 – 5.00/ piece

Min. order: 1 piece

Material: Optical Glass
Type: Geodimeter
Usage: Optical
Certification: ISO9001
Warranty: Yes
Shape: Single-Lens

At a glance

Product: Sapphire Optical Polish CNC High Precision Aspherical Lenses Coated
Category: Rangefinder
Price: US$1.00 – 5.00 / piece
Minimum order: 1 piece
Origin: Heyuan
Customization: On request
Certification: ISO9001
Packaging: Factory-Sealed

Last updated October 17, 2026

Specifications

After-sales Service	Yes
Warranty	Yes
Type	Geodimeter
Model NO.	1-1000mm
Magnification	10X
Measurement Range	6~400m
Usage	Optical
Transmittance	>95%
Shape	Single-Lens
Material	Optical Glass
Lenses Color	Clear
Certification	ISO9001
Customized	Customized
Coating	UV
Hardness	Mohs Hardness of 9
Material Type	Synthetic Sapphire Glass
Density	3.98 G/Cm³
Refractive Index	1.761.77 (@589nm)
Polishing Grade	Optical (Ra<5nm)/Commercial (Ra<20nm)
Transport Package	Factory-Sealed
Specification	1-1000mm
Origin	Heyuan
Production Capacity	1000000/Year
Package Size	20.00cm * 20.00cm * 20.00cm
Package Gross Weight	1.000kg
High-End Consumer Electronics	Smartphone camera covers, smartwatch crystals, fingerprint sensor covers.
Industrial & Research	High-power laser windows, vacuum viewports, high-pressure/high-temperature viewports, spectrometer components.
Aerospace & Defense	Missile domes, EO/IR pod windows, periscopes, armored vehicle viewports.
Medical Devices	Endoscope protection lenses, surgical device windows, biosensors.
Semiconductor Industry	Viewports for wafer processing equipment.

Parameter Category	Parameter Name	Value / Description / Typical Value	Test Conditions / Notes
Basic Information	Product Name	Sapphire Glass Optical Window
	Material Composition	Single Crystal α-Aluminum Oxide (
	Crystal Structure	Hexagonal Crystal System	Anisotropic Crystal
	Growth Method	Kyropoulos Method, Heat Exchanger Method (HEM), Edge-defined Film-fed Growth (EFG)
	Product Form	Flat, Spherical, Aspheric (Customizable)	Can be customized to requirements
Physical Properties	Density	3.97 - 3.99 g/cm³
	Mohs Hardness	9	Second only to diamond (10)
	Knoop Hardness	~2000 kg/mm²	Load 100g
	Young's Modulus	345 GPa
	Shear Modulus	145 GPa
	Poisson's Ratio	0.25 - 0.27
	Compressive Strength	>2.0 GPa
	Flexural Strength	> 690 MPa	Highly dependent on surface finish quality
Thermal Properties	Melting Point	2040 °C
	Maximum Operating Temperature	1900 °C (Vacuum/Inert Gas) / ~1000°C (Air)	High temps in air may cause surface devitrification
	Coefficient of Thermal Expansion (CTE)		@ 25°C
	Thermal Conductivity	25 - 35 W/(m·K)	@ 20°C, ~30x higher than ordinary glass
	Specific Heat Capacity	750 J/(kg·K)	@ 25°C
Optical Properties	Crystal Type	Uniaxial Negative Crystal
	Refractive Index (@587.6 nm)	no = 1.768 / ne = 1.760
	Abbe Number	72.2 (based on no)	Low dispersion
	Transmission Range	0.15 μm - 5.5 μm	Deep UV to Mid-IR
	Internal Transmittance	>85% @ 0.3μm (1mm thick) / >80% @ 4μm (1mm thick)	Depends on thickness and coating
	Refractive Index Homogeneity
	Birefringence	0.008	Crystal orientation must be considered
Surface Specifications	Diameter/Size Tolerance	±0.02 mm or customized
	Thickness Tolerance	±0.01 mm or customized
	Parallelism	< 3 arcsec (High Precision) / < 1 arcmin (Standard)
	Flatness	λ/10 @ 632.8nm / λ/4 (Standard)	MIL-O-13830
	Surface Finish (Quality)	10-5 Scratch-Dig (Standard) / Up to 20-10 (High Grade)	MIL-PRF-13830B
	Clear Aperture	> 90%
	Bevel	< 0.1mm x 45° (Protective bevel)
Chemical & Electrical Properties	Chemical Stability	Excellent. Insoluble in water, resistant to strong acids (e.g., HCl, HNO) and strong bases (slight corrosion at high temps). Not resistant to (HF) and hot Phosphoric Acid.
	Water Resistance	Class 1	ISO 719
	Dielectric Constant (@1 MHz)
	Volume Resistivity		@ 25°C
	Dielectric Strength	480 kV/cm
Coating Options	Anti-Reflection (AR) Coating	Reduces reflection losses, increases transmission in specific bands (e.g., NIR, VIS, specific laser wavelength)	Single side R<0.25% @ specified wavelength
	High Reflection (HR) Coating	Achieves high reflectivity at specific wavelengths (e.g., for laser cavities)	R>99.5% @ specified wavelength
	Oleophobic/ Hydrophobic Coating	Anti-fingerprint, easy to clean, surface protection	Water Contact Angle > 110°
	Conductive Coating (e.g., ITO)	Provides transparent conductivity or electromagnetic shielding	Sheet resistance customizable
	Protective Coating	Provides extra protection against specific chemical environments
Application Fields		High-End Consumer Electronics: Smartphone camera covers, smartwatch crystals, fingerprint sensor covers. Industrial & Research: High-power laser windows, vacuum viewports, high-pressure/high-temperature viewports, spectrometer components. Aerospace & Defense: Missile domes, EO/IR pod windows, periscopes, armored vehicle viewports. Medical Devices: Endoscope protection lenses, surgical device windows, biosensors. Semiconductor Industry: Viewports for wafer processing equipment.

Product details

Sapphire Optical Polish CNC High Precision Aspherical Lenses Coated is a rangefinder product (geodimeter) manufactured in China and available to buyers worldwide through the GoodsFromChina sourcing service. Typical uses include Optical.

Key features

Material: Optical Glass
Type: Geodimeter
Usage: Optical
Certification: ISO9001
Warranty: Yes
Shape: Single-Lens
After-sales Service: Yes
Magnification: 10X

Industrial & Research

High-power laser windows, vacuum viewports, high-pressure/high-temperature viewports, spectrometer components.

Ordering & packaging

Minimum order quantity is 1 piece. Standard export packaging: Factory-Sealed. Every order can include a pre-shipment quality inspection and consolidated shipping by sea, air or express, including DDP delivery.

How we source this product for you

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We confirm price, MOQ and lead time — and compare alternatives.
3
Production & inspection
We follow up production and inspect goods before shipment.
4
Delivered to your door
Sea, air or express with customs clearance and DDP options.

Express5–8 days

Air freight8–12 days

Sea freight25–40 days

DDPDuties included

Sourcing help for this product

Frequently asked questions

What is the minimum order quantity for Sapphire Optical Polish CNC High Precision Aspherical?

The MOQ is 1 piece. Smaller trial orders can sometimes be negotiated — tell us your quantity in the inquiry.

How much does Sapphire Optical Polish CNC High Precision Aspherical cost?

The listed factory price is US$1.00 – 5.00 per piece, depending on quantity. Your final quote includes our service fee and shipping options.

Can it be customized with my logo or specifications?

Customization depends on the factory and order quantity. Describe what you need and we will confirm options with the manufacturer.

How long does production and shipping take?

Typical production time is 15–45 days depending on quantity. Shipping to the US takes about 5–8 days by express, 8–12 days by air and 25–40 days by sea, with DDP door-to-door delivery available.

How do you check product quality?

We verify the manufacturer before ordering and can perform a pre-shipment inspection (AQL sampling) with a photo report before you pay the balance.