TECHNICAL DEPT.
Lenses Test Report
www.khatod.com technical@khatod.com Page 11 - May 2018
KNAC0424ASM - IESNA Type II / Type III
Material = PMMA Clear, Non-yellowing, 10-year guarantee**
Full angle at 50% from maximum: ~150°x160°
Full angle at 10% from maximum: ~160°x110°
The light spots here represented refer to tests carried out with
LEDs with 3mm dome and 2mm2 LES, ~250lm@LED
TECHNICAL DEPT.
Lenses Test Report
www.khatod.com technical@khatod.com Page 19 - May 2018
Material Top
PMMA 8N ** -40°...90°C
For further information please visit Evonik website
Please note that ow lines and weld lines on the external surfaces of the lenses are acceptable if the optical performance
of the lens is within the specications.
Should you require further information, please contact Khatod for advice. All lens testing must be subject to identical
conditions as Khatod test condition. Khatod Optoelectronic, Milan, Italy, manufactures lenses for LEDs. Any other use
of the lens shall void our liability and warranty. The lenses are an inert component to be used in the manufacture of
various products. Our warranty and liability are limited only to the manufacture of the lens. You may not modify, copy,
distribute reproduce, license or alter the lens and related materials of Khatod. Khatod does not warrant against damages
or defects arising out of the use or misuse of the products; against defects or damage arising from improper installation,
or against defects in the product or in its components. No warranty of any kind, expressed or implied, is made regarding
the safety of the products. The entire risk as to the quality or performance of the product is with the buyer. In no event
shall Khatod be liable for any direct, indirect, punitive, incidental, special, consequential damages, or any damages
whatsoever arising out of or connected with the use or misuse of the product. Khatod shall not have any obligation with
respect to the product or any part thereof, whether based on contract, tort, strict liability or otherwise. Buyer assumes
all risks and liability from use of the product. The laws of Milan, Italy govern this product warranty and liability and
you hereby consent to the exclusive jurisdiction and venue of courts in Milan, Italy in all disputes arising out of or
relating to the use of this product. Production, marketing, distribution, sale of these products as well as their possible
modications and variations are only exclusive right of Khatod Optoelectronic. No company can perform any of these
actions without written permission released by Khatod Optoelectronic. The information contained in this document is
proprietary of Khatod Optoelectronic and may change without notice.
REPRODUCTION PROHIBITED.
DO NOT HANDLE OR INSTALL LENSES WITHOUT WEARING GLOVES, SKIN OILS MAY DAMAGE
LENS OR LIGHT TRANSMISSION;
CLEAN LENSES WITH MILD SOAP AND WATER AND A SOFT CLOTH;
DO NOT USE ANY COMMERCIAL CLEANING SOLVENTS ON LENSES.
Use and Maintenance
Disclaimer
Materials
Notes:
**
KNAC04xxxSM is made of the same material used to produce PLEXIGLAS® Solar which guarantees it will show
no yellowing for 10 years.
Yellowness Index (YI) according to the test standards for Arizona/Florida outdoor exposure testing:
- YI 6 under hot/dry conditions
- YI 8 under hot/wet conditions
Intensity (I) and illuminance (E) data are normalized by 1000 lm
The optical values shown are the result of optical simulations carried out with LIGHTOOLS, ASAP and ZEMAX
software systems. The optical simulations are carried out on the basis of the typical values provided in the LED
manufacturers’ ocial datasheets. The photometric analysis has been carried out on physical samples.
On request, by supplying your PCB, we can provide the measurement photometric le.