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 theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication ma
3、y 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: 724-776-4970 (outside USA)
4、Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J594_201002SURFACEVEHICLESTANDARDJ594 FEB2010 Issued 1971-07 Revised 2010-02 Superseding J594 DEC2
5、003 Reflex Reflectors RATIONALEThis document was revised to incorporate changes to a new photometry format. There are no photometry requirements changes to this document. 1. SCOPE This SAE Standard provides test procedures, requirements, and guidelines for reflex reflectors. 2. REFERENCES 2.1 Applic
6、able Publications The following publications form a part of this specification to the extent specified herein. Unless otherwise specified, 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
7、: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.SAE J575 Test Methods and Equipment for Lighting Devices and Components for Use on Vehicles Less than 2032 mm in Overall Width SAE J576 Plastic Material or Materials for Use in Optical Parts Such as Lenses and Reflex R
8、eflectors of Motor Vehicle Lighting Devices SAE J578 Color Specification SAE J759 Lighting Identification Code 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this document. SAE J594 Revised FEB2010 Page 2 of 62.2.1 SAE Pu
9、blications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.SAE J585 Tail Lamps (Rear Position Lamps) for Use on Motor Vehicles Less than 2032 mm in Overall Width SAE J586 Stop Lam
10、ps for Use on Motor Vehicles Less than 2032 mm in Overall Width SAE J588 Turn Signal Lamps for Use on Motor Vehicles Less than 2032 mm in Overall Width SAE J592 Sidemarker Lamps for Use on Road Vehicles Less than 2032 mm in Overall Width SAE J1395 Front and Rear Turn Signal Lamps for Use on Motor Ve
11、hicles 2032 mm or More in Overall Width SAE J1398 Stop Lamps for Use on Motor Vehicles 2032 mm or More in Overall Width SAE J2040 Tail Lamps (Rear Position Lamps) for Use on Vehicles 2032 mm or More in Overall Width SAE J2041 Reflex Reflectors for Use on Vehicles 2032 mm or More in Overall Width SAE
12、 J2042 Clearance, Sidemarker, and Identification Lamps for Use on Motor Vehicles 2032 mm or More in Overall Width2.2.2 Federal Publications Available from the Document Automation and Production Service (DAPS), Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6257, http:/as
13、sist.daps.dla.mil/quicksearch/.FMVSS 108 56FR 64733 64737 Turn Signal Geometric Visibility Requirements 3. DEFINITIONS 3.1 Reflex Reflectors Devices that are used on vehicles to give an indication of presence to an approaching driver by reflected light from the headlamps on the approaching vehicle.
14、3.2 The Observation Angle The angle between a line from the observation point to the center of the reflector and a second line from the center of the reflector to the source of illumination. 3.3 The Entrance Angle The angle between the axis of the reflex reflector and a line from the center of the r
15、eflector to the source of illumination. 4. IDENTIFICATION CODE Reflex reflectors may be identified by the Code “A“ in accordance with SAE J759. SAE J594 Revised FEB2010 Page 3 of 65. TESTS 5.1 SAE J575 is a part of this report. The following tests are applicable with the modifications as indicated.
16、5.1.1 Vibration Test 5.1.2 Moisture 5.1.3 Dust Test 5.1.4 Corrosion Test 5.1.5 Photometry In addition to the test procedures in SAE J575, the following apply: 5.1.5.1 Test Setup Photometric measurement shall be made at a test distance of at least 30 m with the reflex reflector setup for testing as s
17、hown in Figure 1. The reflex reflector shall be mounted in a goniometer with the center of the reflex area at the center of rotation and at the same horizontal level as the source of illumination. FIGURE 1 - SETUP FOR TESTING 5.1.5.2 Light Source and Sensor The source of illumination shall be a proj
18、ector with a 50 mm 5 mm effective diameter and a lamp filament operating at 2856 K (nominal) color temperature. In making photoelectric measurements, the opening to the photo cell shall not be more than 13 mm vertical by 25 mm horizontal with the observation point above (geometrically) the source of
19、 illumination. 5.1.5.3 Measurements Reflex reflectors shall be photometered at the observation and entrance angles shown in Figure 2. The 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
20、reflector as viewed from behind the reflector. The H-V axis of reflex reflectors shall be taken parallelto the longitudinal axis of the vehicle for rear reflectors and perpendicular to a vertical plane parallel to the longitudinal axis of the vehicle for side reflectors. SAE J594 Revised FEB2010 Pag
21、e 4 of 6Photometric measurements shall be made photoelectrically. The recorded value for each test point shall be the quotient of luminous intensity of the reflected light expressed as millicandela (candela) divided by the illumination on the reflector measured in lux (foot candle). Also, the illumi
22、nation on the reflex reflector from the source of illumination shall be measured in lux (foot candle). Reflex reflectors may have any linear or area dimension; but, for the photometric test, a maximum projected area of 7740 mm2contained within a 254 mm diameter circle shall be exposed. 5.1.5.4 Rotat
23、ional Position Reflex reflectors that do not have a fixed rotational position with respect to the vehicle shall be rotated 360 degrees about their axis to find the minimum millicandela per incident lux (candela per incident foot candle), which shall be reported for each test point. If the output fal
24、ls below the minimum requirement at any test point, the reflector shall be rotated 5 degrees about its axis from the angle where the minimum output occurred; and the maximum millicandela per lux (candela per foot candle) within the angular range reported as a tolerance value. Reflex reflectors that,
25、 by their design or construction, permit mounting on the vehicle in fixed rotational position shall be tested in this position. A visual locator, such as the word TOP, shall not be considered adequate to establish a fixed rotational position on the vehicle. 5.1.5.5 Uncolored Reflections If uncolored
26、 reflections from the front surface interfere with photometric readings at any test point, the operator shall check 1 degree above, below, right, and left of the test point, and report the lowest reading and location. The latter must meet the minimum requirement for the test point. 5.2 Color Test SA
27、E J578 is a part of this report. Additionally, 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 reflector. If a disc is used for color determination by the transmission technique, the thickness should be tw
28、ice 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 measurement.6. REQUIREMENTS 6.1 Performance Requirements A reflex reflector, when tested in accordance with the test
29、 procedures specified in Section 5, shall meet the following requirements:6.1.1 Vibration SAE J575. 6.1.2 Moisture SAE J575, except that in the case of sealed units the alternate water submersion test (5.2.4) is required. 6.1.3 Dust SAE J575. 6.1.4 Corrosion SAE J575. SAE J594 Revised FEB2010 Page 5
30、 of 66.1.5 Photometry SAE J575. The reflex reflectors under test shall meet the photometric performance requirements contained in Figure 2 or Figure 2A. FIGURE 2 - MINIMUM MILLICANDELAS PER INCIDENT LUX REQUIREMENTS FOR A RED REFLEX REFLECTOR10.2 Observation Angle Shown in Bold (top value)1.5 Observ
31、ation Angle Shown in Italics (bottom value)FIGURE 2A - MINIMUM CANDELA PER INCIDENT FOOTCANDLE FOR A RED REFLEX REFLECTOR10.2 Observation Angle Shown in Bold (top value)1.5 Observation Angle Shown in Italics (bottom value)SAE J594 Revised FEB2010 Page 6 of 66.1.6 Color The color of the light from a
32、reflex reflector shall be red, yellow, or white as defined in SAE J578. 6.2 Material Requirements Plastic materials used in the optical portion of each reflex reflector unit shall meet the requirements of SAE J576. 6.3 Photometric Design Requirements 6.3.1 If a reflex reflector is optically combined
33、 with signaling or marking bulb type devices, it shall be photometered independently by masking from the other functions and shall meet the performance values contained in Figure 2 or 2A. 6.4 Installation Requirements Reflex reflectors shall be designed to comply with all photometric requirements of
34、 Figure 2 as installed on the vehicle, with all vehicular obstructions considered. 7. GUIDELINES 7.1 Photometric Design Guidelines Reflex reflectors, when tested in accordance with 5.1.5, should be designed at least equal to the values contained in Figure 2 or 2A. 7.2 Installation Guidelines The fol
35、lowing guidelines apply to reflex reflectors as used on the vehicle and shall not be considered a part of this report: 7.2.1 Reflex reflectors when used on the exterior of vehicles should be mounted to minimize the accumulation of dirt, grime, and/or snow so that adequate illumination is maintained
36、from the low beam headlamps of approaching vehicles.7.2.2 If reflex reflectors must perform in severe environments, such as periodic total immersion in water, the user should specify reflex reflector designs suitable for such use. 8. NOTES 8.1 Marginal Indicia A change bar (I) located in the left ma
37、rgin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE GEOMETRIC VISIBILITY TASK FORCEOF THE SAE SIGNALING AND MARKING DEVICES STANDARDS COMMITTEEAND THE SAE LIGHTING COORDINATING COMMITTEE
