1、STD-SMPTE RP L2Y-ENGL 1798 W 8357LiUl 0003055 35L W SMPTE RECOMMENDED PRACTICE RP 124-1998 Revision of RP 124-1993 Insertion Pivot for Studio Lighting Units and Mating Holders for Use with Standing and Hanging Support Systems Purpose The Professional Motion Picture Equipment Associa- tion (PMPEA) de
2、termined in 1978 that a committee should be formed to investigate the need for stand- ardization of studio lighting hardware. In cooperative efforts, the Society of Motion Picture and Television Engineers joined with the PMPEA to form the Working Group for Studio Lighting Hardware Standardization. I
3、nitial investigations began with the lighting pin. The premise for such an investigation was to provide a universal nomenclature and proper adaptability of the pin size. 1 Scope This practice specifies the dimensions for an insertion pivot used for mounting studio lighting units on stand- ing or han
4、ging support devices, the mating holders for the insertion pivot, and the mating devices for holding or hanging stage lighting devices weighing less than 22 Ibs (10 kg). 2 Dimensions The dimensions shall be as specified in the figures and tables. Page 1 of 2 pages Figure 1 - Insertion pivot (baby pi
5、n) Table 1 - Specifications Dimensions Inches Millimeters 0.002 + 0.05 A 0.625 T 0.003 1588 - 0.08 B 0.50 f 0.01 12.7 I 0.3 C 1.50 f 0.01 38.1 k 0.3 62.0 f 0.3 D 2.44 f 0.01 E 2.50 I 0.01 63.5 f 0.3 3.25 nom F (#30 drill) 0.128 nom G (chamfer) 45“ x 0.06 nom 45“ x 1.5 nom Copyright O 1998 by the SOC
6、IETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White Plains, NY 10607 (914) 761-1100 Approved June 1,1998 STD-SMPTE RP L24-ENGL I1778 = 8357401 000305b 298 Dimensions Inches Millimeters + 0.010 + 0.25 A 0.635 - o 16.13 - o B 0.75 min 19.0 min C 0.87 k 0.01 22.1 f 0.03 D 2.63 f 0.01 66.8 f 0.03 RP 1241998 Dimensions Inches Millimeters + 0.25 A 0.635 + - o.o1o o 16.13 - o B 0.75 min 19.0 min C 0.63 f 0.01 16.0 f 0.3 D 1.25 k 0.01 31.8 k 0.3 LOCKING SCREW Figure 2 - Stand mount for baby units Figure 3 - Hanger mount for baby units Page 2 of 2 pages
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