Product Details
Large Aperture Optical Glass Lenses
Convex lenses include: A,B,C FConcave lenses include: D,E, F
D=Diameter
R=Radius
TC=Center Thickness
TE=Edge Thickness
Technical Parameters:
Specifications | Normal | High Precision | Mfg.Limit |
Material : | H-K9L | H-K9L | H-K9L |
Design Index: | 1.5168 | 1.5168 | 1.5168 |
Diameter Tolerance | +0/-0.1mm | +0/-0.1mm | +0/-0.1mm |
Thickness Tolerance : | +/-0.1mm | +/-0.1mm | +/-0.1mm |
Focal Length Tolerance : | +/-2% | +/-2% | +/-2% |
Centeration : | 3 arc min | 3 arc min | 3 arc min |
Surface Quality: | 60-40 | 20-40 | 20-40 |
Surface Figure: | 3 lambda | 2 lambda | 2 lambda |
Surface lrregularity : | 1 lambda | 1/4 lambda | 1 /4lambda |
Clear Aperture : | >80% | >90% | >95% |
Bevel: | +/-0.2*45 degree | +/-0.2*45 degree | +/-0.2*45 degree
|
Application Fields of our products
Optical elements produced by our company are widely used
inmilitary, aerospace, chemicalindustry, the public
securityinvestigation, medicalinstrument, optical
communicationenvironmental monitoring, photoelectric detection,
cameraphotography,scanning laser instrument, the
projection,anti-corrosion glass window, pressure-proof
window,hightemperature windows, panel glass and other fields.
We can supply design,producing,coating.
cementing,assembly to customerrequirement.
Company Profile
Miluo City Yufeng Photoelectric Science and Technology Co., Ltd.is a technological enterprise specializing in themanufacture of
precision optics. The company has mature production and testing
technology, passed the certification of ISO 9001 Quality
Attestation,applied for more than 20 patented technologies, and has
a large High-throwing machine, aspheric polishing machine,
precision polishing machine, ZYGCinterferometer, spherical caliber
meter and other professional instruments. DKD Optics can customize
all kinds of plane, spherical and aspherical optics within1000mm
diameter and offers astronomical telescope optical systems
within600mm diameter. DKD Optics provides you with the best
solution of large and precision optical system.
established in June 1994, is one of the earlier developing and
manufacturing bases for color optica glass in China. Existing
production mainly consists of the optical flter, color flter,
heat-protecting lens, rising color temperature glass for special
operating lamp, ultraviolet UV) cut fiter, lR cut fiter, fused
slicon lens, borosiicate glass, band-pass flter in the optcal
system of the airport, optical prism, cylindrical mirror, stick
mirror, filters of optical treatment device, etc .
We keep pursing the aim to provide every customer with satisfactory
products, with our advanced equipments, best product process
control , best quality test criteria and procedures applied which
ensure both quality and delivery, as well as the traceabilty of the
product quality. Besides, we are an ISO9001-certified company and
each product are in line with the EU ROHS environmental protection
requirements.
There’s a saying, God helps those who help themselves. We firmly
believe that honesty and customer-oriented makes win-win business
and long-term relations.