LINZA 150 UV-VIS-NIR Spectrophotometer

The LINZA 150 spectrophotometer is designed for broadband transmittance and reflectance measurement of lenses and lens assemblies (objectives), adding a whole new dimension to your optical metrology capabilities.

Indeed, lenses come in vast variety of sizes and shapes which makes them extremely difficult to measure. Given the inherent challenges in measuring transmittance or reflectance on lenses, optical engineers often need to combine data from a several witness samples in order to tease out basic details about optical performance of a lens. However, due to the nature of any deposition technology, the coating on lenses differs from that on the witness sample. Even more insurmountable barrier is the need to measure the off-axis performance of the optical lens .

With LINZA 150, you get transmission data on axis and reflection data at any point of the lens surface, fully unattended. This ensures that only perfect lenses with perfect coatings are delivered to customers and approved for lens assemblies. This valuable data also helps our customers to backward analyze and improve their deposition technology.

LINZA 150 Spectrophotometer is also a great instrument for your QA/QC lab ensuring that lenses from your supplier do meet your specs. The instrument is perfectly suited for both routine lens measurements and sophisticated improvement of lens coating technology.

Unattended measurement of reflectance at any point on lens surface

Fast on-axis transmittance measurement of lens assemblies

Unattended on-axis ans off-axis reflectance measurement of individual lenses providing measurement data virtually from any area on lens surface (both convex and concave). Ideal for fine-tuning of deposition technology used to produce coatings on lenses

Fast on-axis transmitttance measurement of individual convex / concave lenses

The following product features are found only in LINZA 150 Spectrophotometers and help our customers measure the coatings on lenses and lens assemblies successfully:

• Fast on-axis transmittance measurement of individual convex/concave lenses 
• Fast on-axis transmittance measurement of lens assemblies (objectives) with maximum objective length of 240,0 mm
• Unattended on-axis and off-axis reflectance measurement of individual lenses providing measurement data virtually from any area on lens surface (both convex and concave). Ideal for fine-tuning of deposition technology used to produce coatings on lenses

Main product specifications:

• Spectral wavelength ranges: 380 - 1700 nm and 190 - 1700 nm
• Range of lens radiuses for reflectance measurement: from -15,0 mm to ∞ , and from +15,0 mm to ∞
• Range of focal lengths of lenses and objectives for transmittance measurements: -20,0 mm ... ∞ ... +20,0 mm
• Maximum lens diameter: 150,0 mm for transmittance measurement, 90,0 mm for reflectance measurement
• Minimum lens diameter: 10,0 mm
• Maximum lens weight (reflectance measurement): 0.5 kg

The LINZA 150 spectrophotometers are designed to measure coatings on lenses.

This is one of the most challanging tesing procedures due to vast variety of lenses used today.  As a result, optical experts traditionally evaluate the performance of coatings using witness samples from the each coating batch. The imperfection of this method lies in the difference in the optical characteristics of the witness sample and the lens. In addition, such verification method cannot be used at all to quantify the coating uniformity on the lens' surface. 

The LINZA 150 spectrophotometer successfully addresses both issues and offers a solution for direct UV-VIS-NIR measurement of convex, concave and cylindrical lenses both on-axis and off-axis. Just look at the examples below and learn more about the LINZA 150 unmatched capabilities to measure transmittance and reflectance on spherical surfaces.