LS183 Optical Transmittance Meter | Thick Transparent Materials
The LS183 Optical Transmittance Meter measures UV, visible-light and infrared transmittance in glass, filmed glass, heat-insulating coatings, PMMA, PC, acrylic and transparent plastics. Its parallel optical path and 47 mm sample slot accommodate samples under 47 mm thick. Use it for incoming inspection, quality sampling and window-film acceptance; confirm suitability against sample material, dimensions, test bands and quality requirements.
The LS183 optical transmittance meter tests materials such as heat-insulating coatings, single glass, laminated or insulated glass, filmed glass, PMMA and PC. It measures ultraviolet, infrared and visible-light transmittance. Its parallel optical path and 47 mm-wide test slot support thicker materials, with quick placement and measurement.
Contact our team to confirm the applicable sample and measurement conditions.
| Model | LS183 Optical Transmittance Meter |
| Ultraviolet | Peak wavelength: 365 nm |
| Visible light | 380–760 nm; conforms to the CIE photopic luminous efficiency function |
| Infrared | Peak wavelength: 940 nm |
| Resolution | 0.1% |
| Measurement accuracy | Better than ±2% for colorless, uniform transparent materials; better than ±1% when factory-tested with standard samples |
| Sample thickness | <47 mm |
| Test slot | 47 mm wide × 91 mm deep |
| Weight | Approx. 590 g |
| Dimensions | 216 × 134 × 29 mm |
| Power | 5 V DC, Type-C |
| Note | Suitable for glass, filmed glass, heat-insulating coatings, PMMA, PC, acrylic and transparent plastics. Accuracy can be affected by sample color, uniformity, surface condition and thickness. Confirm suitability and test conditions according to the sample and quality-control requirements. |
LS183 Optical Transmittance Meter Demonstration
See the LS183 instrument, its operating procedure and transmittance testing for thicker transparent samples. View LS183 product details
LS182 Optical Transmittance Meter Video
Learn about the LS182 optical transmittance meter and common sample-testing applications. View LS182 product details