1、STD*SMPTE 1b3-ENGL 1798 8357401 0003018 484 SMPTE STANDARD SMPTE 163-1 998 Revision of ANSI/SMPTE 163-1992 for Motion-Picture Film (8-mm Type S) - 35-mm Film Perforated 8-mm Type S, 5R - Magnetic Striping 1 Scope This standard specifies the location and dimensions of the magnetic recording stripes a
2、nd the balance stripes applied to 35-mm motion-picture film with four rows of 8-mm type S perforations and one row of special perforations. Page 1 of 2 pages 3.3 The stripes designated as “recording” are made of a magnetic material and are intended for the audio record. The balance stripes may be st
3、ripes of magnetic or nonmagnetic material of such thickness that the balance and recording stripes project above the surface of the film to substantially the same degree. 2 Normative references 4 Film stock The following standards contain provision which, through reference in this text, constitute p
4、rovisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standards indicated below. ANSVS
5、MPTE 165-1 994, Motion-Picture Film (35- mm) - Perforated 8-mm Type S, 5R (1 -3-5-7-0) SMPTE 161 -1 998, Motion-Picture Film (8-mm Type S) - Magnetic Striping 3 Dimensions 3.1 The location and dimensions of the magnetic recording stripes and balance stripes shall be as given in figure 1 and table 1.
6、 3.2 The magnetic striping material shall be ap- plied to the surface of the film away from a camera or projector lens, for example, toward the light source of a projector arranged for direct front projection on a reflection-type screen. The film stock used shall be safety type, perforated in accord
7、ance with ANSVSMPTE NOTES cut and 165. 1 The width and edge-to-perforation distance of the 8-mm slit strip shall be in accordance with ANWSMPTE 165. The location of the magnetic recording and balance stripes shall be in accordance with SMPTE 161. Consequently, it is not possible to take full advanta
8、ge of the tolerance of both the slit width and the location of the magnetic recording and balance stripes. 2 Tolerances for the recording stripes and balance stripes are specified to permit usage of a single wide stripe or two separate stripes where they are adjacent. If two stripes are used, the am
9、ount of separation between the stripes should be sufficient to permit slitting within the requisites of the standard without obtaining undesirable feather edges of magnetic material. The separation required is determined by laboratory practice. 3 Notwithstanding the tolerance on dimensions MI, NI, M
10、2, N2, M3, NJ, M4, and N4, the width of the stripe, dimension N minus M, shall be 0.0250 in (0.635 mm) minimum. Copyright O 19% by THE SOCIElf OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Haitsdale Ave., White Plains, NY 10607 (914) 761-1100 Approved September 1,1998 SMPTE 163-1998 (a) MAGNETIC
11、 RECORDING STRIPES (b) BALANCE STRIPES a ba ba b - REFERENCE EDGE UI .“I Figure 1 - Dimensions Table 1 - Specifications Dimensions Inches Millimeters A 1.377 nom 34.98 nom 0.315 0.002 0.629 I 0.002 0.943 I 0.002 1.257 f 0.002 0.342 I 0.002 0.656 f 0.002 0.970 f 0.002 1.284 f 0.002 0.033 k 0.003 0.34
12、7 I 0.003 0.661 +0.003 0.975 f 0.003 0.045 f 0.003 0.359 f 0.003 0.673 f 0.003 0.987 f 0.003 8.00 I 0.05 15.98 I 0.05 23.95 10.05 31.93 I 0.05 8.69 I 0.05 16.66 I 0.05 24.64 f 0.05 32.61 f 0.05 0.84 f 0.08 8.81 10.08 16.79 * 0.08 24.76 10.08 1.14 IO.08 9.12 I 0.08 17.09 I 0.08 25.07 I 0.08 I ,) I See note 3. Page 2 of 2 pages
