LensAlign Modules for OptiCentric®

OptiCentric® in combination with one of the available LensAlign modules aligns and cements lens pairs quickly and accurately with an accuracy of better 2 µm. During the alignment process the upper lens is either aligned to the optical axis of the lower lens or to a mechanical axis, e.g. the axis of an arbor. To provide cementing solutions for all lens geometries and manufacturing processes TRIOPTICS offers different LensAlign modules which can be placed on any OptiCentric® or MultiCentric® system.

LensAlign 2D Air

Lens alignment with the LensAlign 2D Air on a lens rotation device
Lens alignment with the LensAlign 2D Air on a lens rotation device

The module LensAlign 2D Air enhances OptiCentric® systems by adding a software-controlled air manipulator and offers a cost-efficient solution for an entry-level active automated lens alignment. As the process enabled by LensAlign 2D Air does not require operator interaction, a persistent sample quality and an improved process safety can be guaranteed.

 

 

 

 

Technical Data of LensAlign 2D Air

LensAlign 2D Air
Measurement accuracy < 0.1 µm
Alignment accuracy Up to 1 µm¹
Cycle Time (measurement and alignment, not including curing time) < 30 seconds
Sample size Up to 50 mm²

¹ Depending on the lens geometry

² Additional sizes upon request

 

 

LensAlign 2D Standard

LensAlign 2D Standard
LensAlign 2D Standard

The module LensAlign 2D Standard aligns and cements lenses with a sample geometry of D/(2R) ≤ 0.7¹. The unit can be easily adapted to different lens sizes and is therefore more flexible when different doublets need to be aligned within short notice.

 

 

Technical Data of LensAlign 2D Standard

Coaxial alignment (3 surfaces) Alignment on arbor (1 surface)
Sample geometry ¹ D/(2R) ≤ 0.7 D/(2R) ≤ 0.7
Alignment accuracy Better 2 µm Better 2 µm
Lens diameters ² 4 - 90 mm 4 - 90 mm
Time for change-over to other sample type (predefined set up) 10 s 10 s
Cycle Time 1 min 10 s
Cycle time with MultiCentric® measurement head 10 s on request

¹ D = lens diameter, R = radius of curvature of the intermediate lens surface of the doublet

² Other diameters on request

 

 

LensAlign 2D Advanced

The module LensAlign 2D Advanced was developed to overcome the limitations of the LensAlign 2D Standard. All kinds of lenses can be aligned with this unit, including:

  • hemispherical lenses
  • lenses with D/(2R) > 0.7
  • doublets where the edge of the upper lens in not accessible
  • lenses with tight tolerances for cement wedge
The work angle of the linear actors can be adjusted between 0° and 90°
The work angle of the linear actors can be adjusted between 0° and 90°

Technical Data of LensAlign 2D Advanced

Coaxial alignment
Sample geometry All geometries
Alignment accuracy Better 1 µm
Lens diameters¹ 5 – 100 mm
Time for change-over to other sample type (predefined set up) 5 min
Cycle Time 1 min
Cycle time with MultiCentric® measurement head 10 s

¹ Other diameters on request

Lens alignment and cementing on arbor on request

 

 

LensAlign 4D

Lens Align 4D working principle: Positioning of the lens on the arbor with four degrees of freedom
Lens Align 4D working principle: Positioning of the lens on the arbor with four degrees of freedom

LensAlign 4D represents a module for the OptiCentric® 100 that enables the alignment and cementing of a small lens to a mechanical reference axis, such as an arbor or a cell. For precise positioning, the lens is placed on a thicker adhesive film and held by a micro-gripper, which shifts and tilts the lens in four degrees of freedom until the optical axis aligns with the mechanical axis. This achieves a high precision alignment without unintentional adhesive wedges.

 

 

 

 

Technical Data of LensAlign 4D

LensAlign 4D
Positioning accuracy (independet of the arbor quality) Up to 1 µm for shift and 5 arcsec for tilt
Cycle Time (measurement and alignment, not including curing time) < 1 minute