Ultralyte 20-20 1000 Type Approval

Simon Peers made this Freedom of Information request to Home Office

This request has been closed to new correspondence. Contact us if you think it should be reopened.

The request was refused by Home Office.

Dear Home Office,

In light of my two previous FOI requests and responses
Speers18297 and Speers18497 it is clear that clear serious doubt exists as to the dubiety of this device's type approval.

I therefore formally request that as the public interest test is now so strong and the supplier confidentiality argument so weak that all documents held by CAST formerly (HOSDB)regarding this device are now released .

In particular I would like to see the test results at distances of over 300M.

The Bill of Materials ( Component Parts List )

Laser Optical Peak Power measurements taken?

Beam divergence tests undertaken?

How the units performance varied over temperature?

Specific details on the firmware version that is now being used which will have changed since the unit was type approved.

The sensitivity tests of the detector
Peak forward current
Pulse width
Duty Cycle
Latency
Rise and fall times

I look forward to hearing from you

Yours faithfully,

Simon Peers

Sawyer Karen, Home Office

1 Attachment

Dear Mr Peers,

 

Please find attached our acknowledgement of your recent request for
information

 

Kind regards

 

K Sawyer

CAST (formerly HOSDB) Information Access Team

 

 

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Redding Valerie, Home Office

4 Attachments

 

Dear Mr Peers

 

Please find attached our response to your recent Freedom of Information
Query.

 

Regards

 

Val Redding

CAST (formerly HOSDB) Information Access Team

 

 

From the 1 April HOSDB became the Centre for Applied Science and
Technology, for more information please see our website
[1]www.homeoffice.gov.uk/cast

 

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References

Visible links
1. http://www.homeoffice.gov.uk/cast

Dear Redding Valerie,

I am requesting an internal review of the decision not to release the Bill of Materials as in the EL4076/10726 document released pages 12 - 16 UL1000 Test Summary . The section listed as components is listed as required but no PASS annotation exists against it .

As First Article Inspection was not carried out on this instrument the only way to make a reasoned judgment on the efficacy of the instrument is to know the components used and in particular the tolerences of the components used . The patent which I have a copy of refers to extremely accurate voltage reference clamp measurements taking place . If substandard components have been used then release of this information would reveal this. Since the Home Office clearly did not carry out such tests it is essential in the public interest to reveal this information . The exemption under Section 43(2) Commercial Interests is not applicable because the Intellectual Property of the manufacturer is already protected by the numerous patents they hold .

The design is based on a 1996 patent . A competitor would not wish to copy this solution as better reference designs already exist in the public domain for example Osram semiconductors have a number of application notes one can download.

Another key aspect of releasing the Bill of Materials would be to expose the number of obsolescence issues that have taken place since 2004 . Obsolescence is a major issue in the electronics issue and I do not believe the HOSDB / Cast have been informed of such changes

I would be happy to sign a Non Disclose Agreement to see this information

Yours sincerely,

Simon Peers

Information Access, Home Office

1 Attachment

Please see attached for your attention.

 

Information Management Service | Financial and Commercial Group | Lower
Ground Floor | Seacole Building | Home Office | 2 Marsham Street | London
SW1P 4DF

 

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Communications via the GSi may be automatically logged, monitored and/or
recorded for legal purposes.

Information Access, Home Office

3 Attachments

Please see attached for your attention.

 

Information Management Service | Financial and Commercial Group | Lower
Ground Floor | Seacole Building | Home Office | 2 Marsham Street | London
SW1P 4DF

 

show quoted sections

 

show quoted sections

Communications via the GSi may be automatically logged, monitored and/or
recorded for legal purposes.