PRODUCTS

PRODUCTS

 

MESSAGES

Username used for comment:
Customer message
Description:
Customer message
/
-
Aspherical Lenses

Products

1/1
Number of views:
1000

Aspherical Lenses

Retail price
0.0
Market price
0.0
Number of views:
1000
Product serial number
Quantity
-
+
Stock:
0
1
Description
Download

Aspheric lenses have its advantages in a range of applications where eliminated spherical aberration or (and) single element design is required. CASTECH offers CNC precision-polished aspherical and acylindrical lenses, with or without anti-reflection (AR) coatings. Our CNC polished aspheric lenses are iteratively ground and polished by a software supported computer-controlled processing center to provide better controlled surface quality, irregularity and focal length deviation.

 

•  Material from DUV to IR 

•  Custom dimension and shapes

• ​​​​​​ ​Diameter from 5 to 200 mm

• ​​​​​​ ​Clear aperture: Central 90% of diameter

• ​​​​​​​ Irregularity : λ/10@632.8nm

• ​​​​​​ ​Surface quality: 20-10 S/D

• ​​​​​​ ​Centration: 3′

• ​​​​​​ ​Standard and custom coating options available 

• ​​​​​​ ​High laser damage threshold

 

Metrology 
CASTECH employs rigorous verification procedure to guaranty the high performance of our each aspheric lens. A Form Talysurf PGI profilometer allows contact measurement in grinding process while Taylor Hobson LuphoScan 260 non-contact 3D optical surface profilometer performs ultra precision optical surfaces form measurement in polishing process.

 

Taylor Hobson Form Talysurf PGI

Measure range: from 0.1 to 200 mm

Resolution ratio: 0.8nm

Taylor Hobson LuphoScan 260 for irregularity measurement

Measure range: from 5 to 260 mm

High surface accuracy: ±50nm

   
Scan the QR code to read on your phone
We could not find any corresponding parameters, please add them to the properties table
Previous
Next

Enquiry

留言应用名称:
MESSAGES
描述:

Messages

 

 

castech
Customer message

Copyright© CASTECH Inc. all rights reserved   闽ICP备12014619号

Search 

搜索
Search