The GES Objective Lens Tester delivers the precision and confidence needed to adhere to the exacting specifications of modern lenses and cameras. This ensures that products shipped to market work as intended. With the ability to quickly and precisely measure lenses as small as 1mm3, this platform is perfect for the critically precise applications of the consumer electronics world.
Consumer Electronics
MTF + Optical Performance Testing Platform

These machines can be configured with automation to test up to 800 units per hour with a footprint of just 1m x 1m. A highly stable laser light source with an active feedback loop measures precise field of view transmission. Measuring an impressive list of key variables, this test configuration allows you to be confident in the function and performance of any lens stack that passes inspection.



  • Over 50 million lenses tested with this platform
  • Handles small lens arrays down to 1mm x 1mm x 2mm
  • Precision measurement of optical attributes to 1µm
  • Alignment of mechanical attributes to within 2µm
  • Highly stable laser power with active feedback loop
  • A variety of spectral bands available
  • Measures BFL - back focal length down to 6µm
  • Measures EFL - effective focal length
  • Measures RI - refractive index
  • Measures MTF - modulation transfer function
  • Image quality considered using LSF and PSF with accuracy to within 2% MTF
  • Image quality field of view measurement to 190 degrees
  • Measures deviation from linear projection to 5 arcsec.
  • Image spot size measurement
  • Brightness Transmittance measurement within 2%
  • Can be configured to measure objective, eyepiece or camera lenses.


Our unique combination of engineering talent relating to optics, image analysis, and micro-alignment allows us to solve the most complex optical testing applications. Combining that engineering prowess with our low-cost, high-volume manufacturing in Vietnam and China, makes GES the perfect partner to help you improve your product quality.

If you’d like to leverage GES’s optical testing technology to streamline your manufacturing and quality assurance/quality control processes on lenses and cameras, shoot us a quick email and we’ll be in touch shortly.

GES Inc. Headquarters

5215 Hellyer Avenue, Suite 130
San Jose, CA 95138, USA



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