• MELOS

MELOS Vertical Lens Bench

The Measuring Equipment for Lenses and Optical Systems (MELOS) is designed to be a multi-purpose, vertical lens bench for making measurements of effective focal length, wedge, radius of curvature and centering. The MELOS 530 is used for focal length, back focal length, radii and wedge angles which can be tested quickly and easily. Improvement to the mechanics and optics of the instrument make it possible to measure radius and back focal length from ±5 mm to ±530 mm. The measuring range can be decreased or increased on special request.

We offer 8 MELOS combinations for a variety of applications.

Combination 1: Positive focal length, back focal length
Combination 2: Positive and negative focal length and back focal length
Combination 3: Positive and negative focal lengths, back focal lengths, and concave and convex radii
Combination 4: Positive and negative focal lengths, back focal lengths, concave and convex radii, and wedge angles
Combination 5: Positive and negative focal lengths, back focal lengths, concave and convex radii, wedge angles, and surface form deviations
Combination 6: Concave and convex radii
Combination 7: Wedge angles
Combination 8: Surface form deviations

See tabs below for combination layouts.

Combination 1

comb1

Left (blue) box: Focus-module
Right (yellow) box: Stand with collimator

Combination 2

comb2

Left (blue) box: Focus-module
Center (teal) box: Achromats
Right (yellow) box: Stand with collimator

Combination 3

comb3

Left (blue) box: Focus-module
Upper center (teal) box: Achromats
Lower center (red) box: Two-axis tilting table
Right (yellow) box: Stand with collimator

Combination 4

comb4

Left (blue) box: Focus-module
Upper center (teal) box: Achromats
Lower left (dark grey) box: Angle-module 1
Lower center (light grey) box: Angle-module 2
Lower center (red) box: Two-axis tilting table
Lower center (purple) box: Translation stage
Right (yellow) box: Stand with collimator

Combination 5

comb5

Left (blue) box: Focus-module
Upper center (teal) box: Achromats
Lower left (dark grey) box: Angle-module 1
Lower center (light grey) box: Angle-module 2
Lower center (red) box: Two-axis tilting table
Lower center (purple) box: Translation stage
Lower center (magenta) box: Interferometer-module
Lower right (pink) box: Reference Elements
Right (yellow) box: Stand with collimator

Combination 6

comb6

Lower left (blue) box: TV-set
Upper left (dark grey) box: Radius-module
Upper center (brown) box: Radius display unit
Lower center (purple) box: Translation Stage
Center (teal) box: Achromats
Right (yellow) box: Stand with collimator

Combination 7

comb7

Lower left (blue) box: TV-set
Upper left (dark grey) box: Angle-module 1
Upper center (light grey) box: Angle-module 2
Lower center (red) box: Two-axis tilting table
Right (yellow) box: Stand

Combination 8

comb8

Upper left (magenta) box: Inerferometer-module
Center (purple) box: Reference elements
Lower center (red) box: Two-axis tilting table
Lower center (violet) box: Translation stage
Lower left (brown) box: Radius display unit
Right (yellow) box: Stand