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Division [2B002] Numerically controlled optical finishing machine tools equipped for selective material removal to produce non-spherical optical surfaces having all of the following characteristics:F1

United Kingdom

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

  1. a..

    Finishing the form to less (better) than 1,0 μm;

  2. b..

    Finishing to a roughness less (better) than 100 nm rms.

  3. c..

    Four or more axes which can be coordinated simultaneously for "contouring control"; and

  4. d..

    Using any of the following processes:

    1. 1..

      F2‘Magnetorheological finishing’ (‘MRF’);

    2. 2..

      F3‘Electrorheological finishing’ (‘ERF’);

    3. 3..

      ‘Energetic particle beam finishing’;

    4. 4..

      ‘Inflatable membrane tool finishing’; or

    5. 5..

      ‘Fluid jet finishing’.

Technical Notes:For the purposes of 2B002:

1.

‘MRF’ is a material removal process using an abrasive magnetic fluid whose viscosity is controlled by a magnetic field.

2.

‘ERF’ is a removal process using an abrasive fluid whose viscosity is controlled by an electric field.

3.

‘Energetic particle beam finishing’ uses Reactive Atom Plasmas (RAP) or ion-beams to selectively remove material.

4.

‘Inflatable membrane tool finishing’ is a process that uses a pressurized membrane that deforms to contact the workpiece over a small area.

5.

‘Fluid jet finishing’ makes use of a fluid stream for material removal.

Annotations

Textual amendments

F1

Substituted by Commission Delegated Regulation (EU) 2020/1749 of 7 October 2020 amending Council Regulation (EC) No 428/2009 setting up a Community regime for the control of exports, transfer, brokering and transit of dual-use items.

F2

Words in Annex 1 Entry 2B002.d. substituted (20.5.2025) by The Export Control (Amendment) Regulations 2025 (S.I. 2025/532), regs. 1(2), 10(2)(f)(i)

F3

Words in Annex 1 Entry 2B002.d. substituted (20.5.2025) by The Export Control (Amendment) Regulations 2025 (S.I. 2025/532), regs. 1(2), 10(2)(f)(ii)

Notes on Division [2B]

Textual amendments

F2

Words in Annex 1 Entry 2B substituted (13.7.2023) by The Export Control (Amendment) Regulations 2023 (S.I. 2023/695), regs. 1(1), 3(2)(d)(iv)(aa)

F3

Words in Annex 1 Entry 2B substituted (13.7.2023) by The Export Control (Amendment) Regulations 2023 (S.I. 2023/695), regs. 1(1), 3(2)(d)(iv)(bb)

F4

Word in Annex 1 Entry 2B substituted (13.7.2023) by The Export Control (Amendment) Regulations 2023 (S.I. 2023/695), regs. 1(1), 3(2)(d)(iv)(dd)

F5

Words in Annex 1 Entry 2B substituted (13.7.2023) by The Export Control (Amendment) Regulations 2023 (S.I. 2023/695), regs. 1(1), 3(2)(d)(iv)(cc)

F6

Word in Annex 1 Entry 2B substituted (13.7.2023) by The Export Control (Amendment) Regulations 2023 (S.I. 2023/695), regs. 1(1), 3(2)(d)(iv)(ee)

F7

Word in Annex 1 Entry 2B substituted (13.7.2023) by The Export Control (Amendment) Regulations 2023 (S.I. 2023/695), regs. 1(1), 3(2)(d)(iv)(ff)