| (84) |
Designated Contracting States: |
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AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
| (30) |
Priority: |
06.03.1995 US 398738
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| (43) |
Date of publication of application: |
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29.12.1997 Bulletin 1997/52 |
| (73) |
Proprietor: Optical Engineering, Inc. |
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Michigan 48315 (US) |
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| (72) |
Inventor: |
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- Macken, John
Santa Rosa, CA 95405 (US)
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| (74) |
Representative: Rees, Alexander Ellison et al |
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Urquhart-Dykes & Lord LLP
30 Welbeck Street London W1G 8ER London W1G 8ER (GB) |
| (56) |
References cited: :
EP-A- 0 199 650 DE-U- 9 407 288 US-A- 4 388 651 US-A- 5 184 012
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EP-A- 0 476 965 US-A- 4 232 960 US-A- 4 812 613
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