A-25H Variable Focus Lens | Miniature Industrial Camera Lens Technology | Corning

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A-25H Variable Focus Lens

A-25H Variable Focus Lens

Product Details

Our A-25H Variable Focus Lens is an excellent fit for low footprint systems requiring fast response time and large focusing range, and is especially suitable for miniature industrial cameras. It provides a fast-track to market for product designers who need an easy to integrate, high-performance auto focus solution.

A-25H is based on Corning Varioptic’s breakthrough lens technology, allowing variable focus with absolutely no moving parts.

The A-25H lens is broadly suited for standard imaging applications. For very close distance imaging needs, the A-25H-D0 is specially designed with a high dynamic range.

A-25H comes with two different AR coating options and also in a pre-packaged type, with straight or bent FPC connection.

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TYPICAL PERFORMANCE AT 25°C
  A-25H A-25H-D0
 Clear aperture  2.5 mm
 Low optical power  -5 diopters (m-1)

 -35 diopters (m-1)

 High optical Power  +13 diopters (m-1)

 +35 diopters (m-1)

 Optical quality (Wave Front Error)  45 nm (rms)

 70 nm (rms)

 Transmission @ 587nm (A-25H0)  97%
 Transmission @ 850nm (A-25H1)  97%
 Power consumption (actuator only)  1 mW
MECHANICAL DIMENSIONS
  A-25H A-25H-D0
 Outer diameter  7.75 mm
 Thickness (rear window to front of lens)  1.7 mm
 Total thickness  2.1 mm
ENVIRONMENTAL SPECIFICATION
  A-25H A-25H-D0
 Storage Temperature  from -40 to 85°C
 Operating Temperature  from -30 to 85°C from -20 to 60°C

Key Features

  • Silent
  • Fast response time
  • Focus range supports 5 cm to infinity (down to 1.5 cm for A-25H-D0)
  • Easy to integrate

Ordering Information

 
  • A-25H0/A-25H0-D0: A-25H/A-25H-D0 with an Anti-Reflective coating optimized in the visible range
  • A-25H1/A-25H1-D0: A-25H/A-25H-D0 with an Anti-Reflective coating optimized in the Near Infrared
  • A-25H9/A-25H9-D0: A-25H/A-25H-D0 with no Anti-Reflective coating
  • A-25HX-P07/A-25HX-D0-P07: A-25HX/A-25HX-D0 (X=0, 1, 9) with FPC-A-7 (straight flex)
  • A-25HX-P06/A-25HX-D0-P06: A-25HX/A-25HX-D0 (X=0, 1, 9) with FPC-A-6 (bent flex)

Getting Started

For more detailed information on optical, mechanical, electrical performance and design, please contact us.