1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2013 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J2041_201310 SURFACE VEHICLE STANDARD J2041 OCT2013 Issued 1992-06 Revised 2013-1
5、0 Superseding J2041 OCT2004 Reflex Reflectors for Use on Vehicles 2032 mm or More in Overall Width RATIONALE There are no photometry requirements changes to this document. The “References” section of this document has been updated to the most current information available. An additional Note was add
6、ed for aiding with converting between SI photometric units and English photometric units. FOREWORD This SAE Standard has been developed to provide signaling and marking device manufacturers with requirements for reflex reflectors that allows broader application. This document provides physical test
7、requirements which are more stringent than requirements levied on Type 1 reflex reflectors, thus, introducing Type 2 reflex reflectors with the same photometric characteristics as Type 1 reflex reflectors, however, better suited for heavy-duty vehicles and the environment of their operation. Also, t
8、his document introduces Type 3 reflex reflector. It matches all requirements of Type 2 device and has additional photometric requirements which allow Type 3 reflex reflector to be used for conspicuity treatment for trailers 2032 mm or more in overall width and GVWR over 4536 kg and truck tractors. 1
9、. SCOPE This SAE Standard provides test procedures, requirements, and guidelines for reflex reflectors used on vehicles 2032 mm or more in overall width. Reflex reflectors conforming to these requirements may also be used on vehicles less than 2032 mm in overall width. 2. REFERENCES 2.1 Applicable D
10、ocuments The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606
11、-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J576 Plastic Material or Materials for Use in Optical Parts Such as Lenses and Reflex Reflectors of Motor Vehicle Lighting Devices SAE J578 Color Specification SAE J594 Reflex Reflectors SAE INTERNATIONAL J2041 Revised OCT
12、2013 Page 2 of 7 SAE J759 Lighting Identification Code SAE J2139 Tests for Signal and Marking Devices Used on Vehicles 2032 mm or More in Overall Width 2.2 Related Publications The following publication is provided for information purposes only and is not a required part of this SAE Technical report
13、. 2.2.1 NHTSA Publication Available from the Superintendent of Documents, U. S. Government Printing Office, Washington, DC 20402-9371, http:/www.gpoaccess.gov/cfr/index/html. CFR Title 49 Part 571.108 Lamps, Reflective Devices and Associated Equipment (FMVSS 108) 3. DEFINITIONS 3.1 REFLEX REFLECTORS
14、 Reflex reflectors are marking devices that indicate the presence and parameters of a vehicle by reflecting light in a mirror-like fashion in the direction of illuminating source. 3.1.1 Type 1 Reflex Reflectors Type 1 reflex reflectors are devices described in SAE J594. 3.1.2 Type 2 Reflex Reflector
15、s Type 2 reflex reflectors are devices that have the same photometric requirements as Type 1 reflex reflectors and that are built to higher physical standards described in this document. 3.1.3 Type 3 Reflex Reflectors Type 3 reflex reflectors are devices that have the physical characteristics of Typ
16、e 2 reflex reflector and comply with higher photometric requirements described in this document. 3.2 Observation Angle The observation angle is the angle formed by a line from the observation point to the center of the reflective area and a second line from the center of the reflective area to the c
17、enter of the source of illumination in the vertical plane only. 3.3 Entrance Angle The entrance angle is the angle between the axis of the reflex reflector and a line from the center of the reflective area to the center of the source of illumination, with both horizontal and vertical coordinates. Th
18、e entrance angle shall be designated left, right, up, and down in accordance with the position of the source of illumination with respect to the axis of the reflex reflector as viewed from behind the reflector. SAE INTERNATIONAL J2041 Revised OCT2013 Page 3 of 7 4. IDENTIFICATION CODE 4.1 Type 2 ref
19、lex reflectors may be identified by the code “A2” in accordance with SAE J759. 4.2 Type 3 reflex reflectors may be identified by the code “A3” in accordance with SAE J759. 5. TESTS 5.1 SAE J2139 is a part of this document. The following tests are applicable with the modifications as indicated. 5.1.1
20、 Vibration 5.1.1.1 The device shall be mounted on the test fixture in accordance with the manufacturers instruction. 5.1.1.2 The device shall be conditioned in a circulating air oven with the temperature controlled at 46 to 49 g113C for 60 min. The device and test fixture shall be removed from the o
21、ven and immediately, without remounting, repressing of adhesive tape, or tightening of mounting screws, placed on the vibration test machine and vibrated for 60 min. 5.1.2 Moisture 5.1.2.1 Either the Water Spray Moisture Test or Water Submersion Test shall be used to test reflex reflectors. 5.1.2.2
22、Water Spray Moisture Test 5.1.2.2.1 If the reflex reflector is a separate unit and not combined with a lighting device, the light source on-off cycle during the water spray moisture test is not applicable. 5.1.2.2.2 Upon completion of the drain period, the interior of the device shall be observed fo
23、r moisture accumulation that can be determined by tapping or tilting the device. 5.1.2.3 Water Submersion Test 5.1.2.3.1 The device shall be mounted on the text fixture in its in-use position. 5.1.3 Dust 5.1.3.1 Dust test does not have to be performed if the device passed the water submersion test.
24、5.1.3.2 If the reflex reflector is a separate unit and not combined with a lighting device, the light source on-off cycle during the dust test is not applicable. 5.1.4 Corrosion 5.1.4.1 If the reflex reflector is a separate unit and not combined with a lighting device, the light source on-off cycle
25、during the corrosion test is not applicable. 5.1.5 Photometry 5.1.5.1 Type 2 Reflex Reflector In addition to the test procedures in SAE J2139, the photometry test procedures in SAE J594 also apply. SAE INTERNATIONAL J2041 Revised OCT2013 Page 4 of 7 5.1.5.2 Type 3 Reflex Reflector In addition to the
26、 test procedures in SAE J2139, the photometry test procedures in SAE J594 also apply. 5.1.5.3 Type 3 reflex reflector shall be also tested at an observation angle of 0.2 degree, at all light entrance angles between 45 degrees left and 45 degrees right. 5.1.5.4 Any reflex reflector which is combined
27、with other lighting device shall be photometered independently by masking from the other function(s). 5.2 Color SAE J578 is a part of this document. 5.2.1 The test sample may be either the reflex reflector or a disc of the same material, technique of fabrication, and dye formulation as the reflex re
28、flector. 5.2.2 If a disc is used for color determination by the transmission technique, the thickness should be twice the thickness of the reflector as measured from the face of the lens to the apexes of the reflecting elements. For either sample, a source “A” illumination shall be used for color me
29、asurement. 5.3 Plastic Material SAE J576 is a part of this document. 6. REQUIREMENTS 6.1 Performance Requirements A device when tested in accordance with the test procedures of this document shall meet the requirements of SAE J2139, except where noted. 6.1.1 Vibration 6.1.1.1 Upon completion of the
30、vibration test, the integrity of the reflex reflectors seal shall not have been compromised and the reflex reflector shall not have become separated from its mounting means. 6.1.1.2 Type 2 reflex reflector that is directional and requires a fixed orientation when mounted on the vehicle shall not rot
31、ate more than 2 degrees, unless the reflex reflector meets all photometric requirements of SAE J594 at all angles between 2 degrees and the angle of maximum rotation. 6.1.1.3 Type 3 reflex reflector that is directional and requires a fixed orientation when mounted on the vehicle shall not rotate mor
32、e than 2 degrees, unless the reflex reflector meets all photometric requirements of 6.1.5.2, at all angles between 2 degrees and the angle of maximum rotation. 6.1.1.4 If a condition is observed that could result in a failure of any other test contained in this document, such other test shall be per
33、formed on this test sample to ensure compliance to that test requirements. 6.1.2 Moisture 6.1.2.1 No evidence of moisture is permitted inside of the reflex reflector. 6.1.2.2 Upon completion of the moisture test, the integrity of the reflex reflectors seal shall not have been compromised and the ref
34、lex reflector shall not have become separated from its mounting means. SAE INTERNATIONAL J2041 Revised OCT2013 Page 5 of 7 6.1.2.3 If a condition is observed that could result in a failure of any other test contained in this document, such other test shall be performed on this tested sample to ensur
35、e compliance to that test requirements. 6.1.3 Dust 6.1.3.1 No evidence of dust is permitted inside of the reflex reflector. 6.1.3.2 If a condition is observed that could result in a failure of any other test contained in this document, such other test shall be performed on this tested sample to ensu
36、re compliance to that test requirements. 6.1.4 Corrosion 6.1.4.1 Upon completion of the corrosion test, the integrity of the reflex reflectors seal shall not have been compromised and the reflex reflector shall not have become separated from its mounting means. 6.1.4.2 If a condition is observed tha
37、t could result in a failure of any other test contained in this document, such other test shall be performed on this tested sample to ensure compliance to that test requirements. 6.1.5 Photometry 6.1.5.1 Type 2 reflex reflectors shall meet the photometric performance requirements of SAE J594. 6.1.5.
38、2 Type 3 reflex reflectors shall meet the photometric performance requirements of SAE J594 and: 6.1.5.2.1 Red reflex reflector shall also provide, at an observation angle of 0.2 degree, not less than 300 millicandela/lux at any light entrance angle between 30 degrees left and 30 degrees right, inclu
39、ding an entrance angle of 0 degree, and not less than 75 millicandela/lux at any light entrance angle between 45 degrees left and 45 degrees right; 6.1.5.2.2 White reflex reflector shall also provide, at an observation angle of 0.2 degree, not less than 1250 millicandela/lux at any light entrance an
40、gle between 30 degrees left and 30 degrees right, including an entrance angle of 0 degree, and not less than 300 millicandela/lux at any light entrance angle between 45 degrees left and 45 degrees right. 6.2 Color The color of the reflected light shall be red, yellow, or white, per application, as s
41、pecified in SAE J578. 6.3 Material Requirements Plastic materials used in optical parts shall meet the requirements of SAE J576. 6.4 Design Requirements 6.4.1 The face of a reflex reflector that is directional and requires a fixed orientation when mounted on the vehicle shall be marked with the word
42、 “TOP.” Reflex reflectors that are oriented by their specific shape to fit only in the specifically designed location need not have the word “TOP.” 6.4.2 Means shall be provided to keep fixed orientation reflex reflectors from rotating more than 2 degrees, unless the reflector meets all photometric
43、requirements at all angles between 2 degrees and the angle of maximum rotation. SAE INTERNATIONAL J2041 Revised OCT2013 Page 6 of 7 6.5 Installation Requirements 6.5.1 Reflex reflectors that are directional may require mounting on the vehicle in a fixed orientation to be effective and shall be mount
44、ed on the vehicle in accordance with the manufacturers instructions. 6.5.2 Reflex reflectors shall be mounted not less than 381 mm nor more than 1524 mm above the road surface as measured from the center of the reflector at vehicle curb weight. 6.5.3 Visibility of the reflected light shall not be ob
45、structed by any part of the vehicle throughout the specified photometric test pattern unless the reflector is designed to comply with these obstructions in place. 6.5.4 Every reflex reflector shall be mounted on the rigid structure of the vehicle. 6.5.5 Every reflex reflector mounted on a movable pa
46、rt of the vehicle shall comply with the photometric and other installation requirements at all positions that the part may be adjusted to unless a substitute reflex reflector is provided. 6.5.6 The face of any reflex reflector mounted on the front or rear of the vehicle shall be in a vertical plane
47、perpendicular to the vehicle longitudinal axis and the face of any reflex reflector mounted on the side of the vehicle shall be in a vertical plane parallel to the median longitudinal plane of the vehicle, unless the reflex reflector is photometrically certified at other, designated by manufacturer,
48、 installation angle. 7. GUIDELINES 7.1 Design Guidelines 7.1.1 Reflex reflector may be combined with any other lighting device as long as it does not interfere with the requirements pertaining to that device. 7.2 Installation Guidelines 7.2.1 Reflex reflectors when used on the exterior of vehicle sh
49、ould be mounted to minimize the accumulation of dirt, grime, and/or snow so that adequate reflection is maintained from the low beam headlamp of approaching vehicle. 7.2.2 If reflex reflectors must perform in severe environments, such as periodic total immersion in water, the user should specify either a Type 2 or Type 3 reflex reflector suitable for such use. 8. NOTES 8.1 Conversion from SI units to English Units As a reference to measur
