| 摘要 |
PCT No. PCT/JP95/02001 Sec. 371 Date Jun. 1, 1996 Sec. 102(e) Date Jun. 1, 1996 PCT Filed Sep. 29, 1995 PCT Pub. No. WO96/10823 PCT Pub. Date Apr. 11, 1996A tape cassette provided with a tape member comprised of a magnetic tape connected to transparent leader tapes affixed to a pair of tape reels rotatably supported in a cassette body via connection tapes. In this cassette body, a light emitting element hole is located between the pair of tape reels. Light transmission holes allowing the light from the light emitting element facing the cassette body via the light emitting element hole to pass therethrough out of the cassette body with the tape member interposed therebetween are provided in the side walls orthogonal to the travelling direction of the tape member travelling over the distance between the pair of tape reels. In addition, a tape information display portion is provided in the tape member which indicates the type of the magnetic tape accommodated in the cassette body. This tape information display portion is provided at a leader tape portion positioned between the point of intersection of a line connecting the light emitting element hole and the light transmission holes and the leader tape and the end portion of the connection tape when the member is completely wound around either tape reel. Since the tape information display portion is formed on the leader tape, the amount of light reflected therefrom is not influenced by the connection tape connecting the magnetic tape to the leader tape so as to result in a high degree of precision of the amount of light detected by the light receiving element.
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