Optical low pass filter

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Reexamination Certificate

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C428S332000, C428S334000, C428S426000, C359S885000

Reexamination Certificate

active

07740934

ABSTRACT:
An optical low pass filter includes: a plurality of optical elements formed by bonding together and an adhesion layer of adhesive that is installed at each of interfaces of the plurality of optical elements to be bonded. The transmitted wave aberration is ±1.5λ or less (λ representing incident wavelength).

REFERENCES:
patent: 7006286 (2006-02-01), Satake et al.
patent: 7567382 (2009-07-01), Shogaki et al.
patent: 2006/0215266 (2006-09-01), Uehara et al.
patent: 1525195 (2004-09-01), None
patent: 1542501 (2004-11-01), None
patent: U 61-28181 (1986-02-01), None
patent: A 2003-29035 (2003-01-01), None
patent: 2004354973 (2004-12-01), None
patent: A-2004-354973 (2004-12-01), None
patent: 2007-072268 (2007-03-01), None

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