A high school teacher charged with making secret up-skirt videos can now be named as Douglas Haora Martin, who was formerly assistant principal at Lincoln High School.

Martin has abandoned a bid to keep his name secret with an appeal to the High Court, and the suppression order has lapsed today.

The deadline for filing the appeal papers - a period set by a judge when he refused name suppression last week - expired this morning and the Christchurch District Court office confirmed that no papers had been filed.

The school reacted to the lifting of suppression by issuing a statement from the principal, Linda Tame, who said she was outraged and angry about Martin's behaviour.

"It's an immense breach of trust," Tame said.

"He was a respected and trusted member of staff so this will clearly have a significant impact on our students, the school and the wider Lincoln community.

"Support for Lincoln High School students, and the school's community and staff are the most important things right now."

Some suppressions continue to apply in the case, though after a hearing on February 15, Judge Phillip Moran issued a reserved decision lifting the order on Martin's name.

As part of that decision he granted time - about a week - for Martin and his lawyer Bryan Green to consider whether to appeal the decision to the High Court.

However, the deadline expired at 10am today without papers being filed which would have kept name suppression in place until the suppression appeal was heard.

Green confirmed today that the case was not proceeding to appeal.

Martin had admitted making 20 up-skirt videos using a small hand-held recorder.

The charges of making intimate visual recordings related to 17 victims, with the recordings made over several months in Christchurch and surrounding districts last year.

Police checked his computer system after he was first arrested for making one recording, and then laid the 20 charges. The 57-year-old pleaded guilty to all the charges on January 16, but a separate hearing had to be held to decide the suppression issue.

Martin is on bail and is due for sentence on April 18.

Lincoln High School's statement said it was shocked to hear of the allegations and subsequent arrest, and it had co-operated fully with the police. The school had notified the Ministry of Education and had followed legal advice throughout.

The school had put welfare initiatives in place to ensure that should anyone need support it was available through the school.

It had notified all parents and the police have advised that they have contacted the victims able to be identified, the statement said.

Martin has been suspended from his job since his arrest and has not been permitted on the school grounds. The Board of Trustees accepted his resignation on January 24.