All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier

Dia 3mm biconcave lenses uncoated optical BK7 double concave lenses

No reviews yet

Key attributes

Industry-specific attributes

Usage
Optical
Structure
Plano-convex
Shape
Spherical

Other attributes

Place of Origin
China
Warranty
3 years
Customized support
OEM
Brand Name
YBT
Model Number
OL
Product name
Bi-concave lens
Material
BK7
Focal length tolerance (EFL)
±2%
Design wavelength
587.6nm
Lens centering tolerance
3 points
Diameter tolerance
+0.0/-0.1mm
Surface quality
60/40
Center thickness tolerance
±0.2mm
Bevel
0.2mmX45°
Face irregularity
wavelength /4 @ 632.8nm

Packaging and delivery

Selling Units:
Single item
Single package size:
20X18X14 cm
Single gross weight:
0.500 kg

Lead time

Quantity (pieces)1 - 50 > 50
Lead time (days)180To be negotiated
Still deciding? Get samples first! Order sample

Samples

Maximum order quantity: 1 piece
Sample price:
$27.00/piece

Customization

Customized packaging
Min. order: 200

Product descriptions from the supplier

5 - 49 pieces
$24.00
50 - 499 pieces
$23.00
>= 500 pieces
$22.00

Variations

Total options:

Shipping

Still deciding? Get samples first! Order sample

Samples

Maximum order quantity: 1 piece
Sample price:
$27.00/piece

Membership benefits

Quick refundsView more

Protections for this product

Secure payments

Every payment you make on Alibaba.com is secured with strict SSL encryption and PCI DSS data protection protocols

Refund policy & Easy Return

Claim a refund if your order doesn't ship, is missing, or arrives with product issues, plus free local returns for defects