loss of all redologs scenario
No.  

The rman command 'BACKUP FULL ...'  makes a backup of the datafiles but does not backup any archivelogs. If you want to backup archivlogs you have to make an archivlog backup too. This can be done by adding the 'PLUS ARCHIVLOG' clause to the 'BACKUP FULL' command or by issuing a 'BACKUP ARCHIVELOG' command after the 'BACKUP FULL' command.

Online backup of datafiles are useless if you do not have an archive log backup that covers the time of the online backup.
If I understand your scenario description, you have lost all archivelogs/redologs that cover the time after 01:30 and you haven't yet made a backup of these archives. Then you can only restore the all datafiles from a backup finished before 01:30 (maybe in the previous night) and then apply all archivelogs from the beginning of this backup until 01:30. 
(I assume that you have a backup of all the archives generated in this period of time).

So you can recover the database until 01:30.

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some consequences:
 1 ) datafiles and archivelogs should be placed on different disks. If the data disk crashes you still have all archives even if you haven't backuped them to tape.
 2) redo logs should not be placed only on data disks. Duplex them because they are so important. Place at least one copy to other disks than data disk.
3) backup your archive logs regularly. Even during other back operations like a long during fullbackup make the archivelog backup parallel to these operations.