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LAMBDA 850 UV/Vis Spectrophotometer

The LAMBDA 850 is one of our highest performance UV/Vis system designed for analysis of coatings, high performance glass, and components in both research and manufacturing. The instrument meets industry standards for ultra-high performance, flexibility, and convenience.

Part Number L850
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Detail Information

The LAMBDA 850 is one of our highest performance UV/Vis system designed for analysis of coatings, high performance glass, and components in both research and manufacturing. The instrument meets industry standards for ultra-high performance, flexibility, and convenience.

Choose this model for ultra-high UV/Vis performance for wavelengths between 175 nm and 900 nm, for applications such as sun protection, reflectance properties of flat panel display screens, paint films, transmission and reflectance characterization of glass and solar cells.

All of our LAMBDA UV/Vis/NIR & UV/Vis Spectrophotometers offer features and accessories designed for maximum versatility delivering optimal performance and value:

  • Universal Reflectance Accessory (URA) - Snap-on module, changes angle automatically - A PerkinElmer exclusive
  • Unmatched sample compartment size
  • Dual Sampling Compartments offer more options
  • Integrating spheres to 150mm
  • General Purpose Optical Bench (GPOB) handles a wide range of samples;including lenses and telescopes
  • Wide range of sampling modules requiring only seconds to change

Specifications

21 CFR Part 11 Compatible Yes
Height 30.0 cm
Interface Tungsten-halogen and Deuterium
Maximum Temperature 35 °C
Minimum Temperature 15 °C
Model Name LAMBDA 850
Operating Range 175 - 900 nm
Portable No
Product Brand Name LAMBDA
Warranty 1 year
Weight 77.0 kg
Width 102.0 cm
Resources, Events & More
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Application Note

Acquisition of High Quality Transmission Spectra of Ultra-Small Samples Using the LAMBDA 950 UV/Vis/NIR and LAMBDA 850 UV/Vis Spectrophotometers

The measurement of very small samples in transmission mode often poses problems. Large-scale losses of energy, scattered light and high backgrounds all impose severe performance requirements on UV/Vis and UV/Vis/NIR instruments. Using small beam apertures can lead to high background absorbance levels, often well over 2A.

PDF 139 KB
Design Considerations for a Variable Angle Absolute Reflectance Accessory LAMBDA® 950/850/650

The accurate measurement ofspecular reflectance over a substantialrange of angles and a widerange of wavelengths from theUV through NIR is a prerequisite to the design and manufacture ofa wide variety of modern opticalcomponents. In designing a systemDesign Considerations for a VariableAngle Absolute Reflectance AccessoryFor the LAMBDA 950/850/650 UV/Vis/NIRand UV/Vis Spectrophotometers.

PDF 209 KB
Directional Reflection Measurements on Highly Reflecting Coatings

We developed spectrophotometry accessories for measuring absolute reflection on highly reflecting samples, not only at near-normal incidences but also at oblique incidences for incident angles up to more than 80 degrees. The accessories are designed for use with a high performance UV/Vis/NIR industrial spectrophotometer and are widely used for the accurate characterisation of mirrors.

PDF 3 MB
High Absorbance Scanning with the PerkinElmer LAMBDA 850 UV/Vis and LAMBDA 950/1050 UV/Vis/NIR Spectrophotometers

In materials research there is sometimes a need to scan high absorbance samples such as laser protection lenses, optical filters, and polarization materials. Such sample types often need to be measured across the whole UV, Vis and NIR ranges of the electromagnetic spectrum.

PDF 2 MB
Measuring Absorptance (k) and Refractive Index (n) of Thin Films with the PerkinElmer Lambda 950/1050 High Performance UV-Vis/NIR Spectrometers

An optical coating consists of a combination of thin film layers that create interference effects used to enhance transmission or reflection properties for an optical system. How well an optical coating performs is dependent upon the number of factors, including the number of layers, the thickness of each layer and the differences in refractive index at the layer interfaces. The reference grade high performance Lambda 1050 when fitted with the proper accessories becomes an ideal tool for the determination of optical thin film constants.

PDF 3 MB
Reflectance Measurements of Materials Used in the Solar Industry

One of the most common measurements made by the solar energy industry today is quantification of a material’s surface reflectance. These materials are as diverse as metal coatings, semiconductor coatings, anti-reflective coatings on window material.

PDF 636 KB
The General Purpose Optical Bench (GPOB) for the LAMBDA 650 and 850

The LAMBDA™ 650/850/950 family of UV/Vis and UV/Vis/NIR spectrophotometers are purposedesigned to enable a wide range of sample types to be analyzed, no matter the shape or dimensions.

PDF 84 KB

Brochure

Why Limit Yourself, High Performance UV\VIS\NIR Instruments

LAMBDA 1050/950/850 Spectrophotometers are advancing what's possible for your testing capabilities, whether it's measuring the absolute reflectance of coatings at various angles with our LAMBDA™ 950 or analyzing highly absorbing liquids with the LAMBDA 850. Now, with the LAMBDA 1050, we're pushing the limits even more.

PDF 1 MB

Case Study

A Spectroscopic In Vitro Method for the Calculation of Sunscreen SPF Values

Sunscreen protects skin by either absorbing or reflecting the harmful ultraviolet rays, preventing them from reaching the skin. Using sunscreen while exposed to the sun can greatly reduce the chances of damaging skin cells, and developing cancer. For this study the PerkinElmer® Lambda™ 1050 equipped with a 150 mm integrating sphere will be use to collect scatter transmission data for sunscreen placed on a tape substrate. Testing sunscreen on a tape model of human skin to calculate the SPF value is more convenient and economical than testing on human skin.

PDF 2 MB

Product Information Bulletin

Regulatory Compliance Certification

Specification Sheet

LAMBDA Flex Series

,LAMBDA Flex Series, LAMBDA Flex Systems, UV/Vis, UV/Vis/NIR, UV Visible, LAMBDA 650, LAMBDA 750, LAMBDA 850, LAMBDA 950, LAMBDA 1050, PbS Sphere, InGaAs Sphere, Diffuse Transmission Sphere, URA, GPOB, ES, Enhanced Software, 21 CFR part 11, Sell Sheet

PDF 500 KB

Technical Note

Linearity Measurements in the Visible Region on a LAMBDA 850/950/1050 Using Hellma Linearity Filters

This note demonstrates the use of Hellma® linearity filters to study the linearity of the PerkinElmer® high performance LAMBDA™ instruments (LAMBDA 850, 950 and 1050) in the visible region of the spectrum.

PDF 249 KB

FAQs

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To remove the halogen lamp follow the steps below:
  1. Switch off the spectrometer and unplug the line power cord.
  2. Remove the lamp compartment cover.
    Lift vertically from the handhold on the rear of the Lambda 650/850/950. Press down the catch and push the cover off backwards on a Lambda 800/900, or to the left on the other Lambda instruments.
  3. If necessary, remove the lamp baffle by loosening and removing the two screws on the top of the baffle and lifting the baffle vertically upward.
    NOTE: Instruments made prior to January 1, 1997 may have a different type of lamp baffle as shown in Figure 2. This is held in place with the same thumbscrew used to hold the lamp in place. Loosen the thumbscrew just enough to allow the lamp baffle to be removed.
  4. Remove the lamp assembly from the bracket by slackening the thumbscrew and pulling the lamp mount vertically upward.
    Save the thumbscrew, as it will be used with the replacement lamp assembly.
  5. Carefully pull the white ceramic connector from the rear of the halogen lamp.
  1. Unpack the new lamp assembly, taking care to hold it only by the metal mount to prevent fingerprints on the lamp window.
    Fingerprints on the lamp window cause hot spots during lamp operation, which can lead to premature lamp failure.
  2. Attach the thumbscrew to the back of the new lamp assembly.
    Make sure you leave enough room so that you can slide the thumbscrew onto the mounting bracket.
  3. Carefully push the white ceramic connector firmly onto the pins on the base of the lamp.
  4. Slide the new lamp assembly with the thumbscrew attached onto the mounting bracket as shown below.
    Make sure that the notch at the base of the lamp assembly fits securely over the alignment stud on the mounting bracket, so that the lamp mount is flush to the mounting bracket.
  5. If necessary, wipe the lamp window with a soft cloth moistened with alcohol to remove dirt.
    The dirt would otherwise be burned in when the lamp is hot.
  6. Replace the lamp baffle and secure it into place.
  7. Replace the lamp compartment cover and plug the line power cord into the spectrometer.