Appeal No. 2000-1201 Page 4
Application No. 08/817,825
After considering the record, we are persuaded that the
examiner erred in rejecting claims 3 and 10-12. Accordingly,
we reverse.
Rather than reiterate the positions of the examiner or
appellants in toto, we address the main point of contention
therebetween. The examiner makes the following allegations.
[The] absorption or reflective color filters tuned
to a predetermined wavelength would have been
obvious in view of those teachings of Loiseaux et
al. In fact, one skilled in the art would have
readily recognized a neutral density filter or a
color filter tuned to the central wavelength of the
color would provide desired attenuation or
modulation but a tuned color filter would be
preferable to further purify the illuminating light
to the desired pixels to thereby provide highly
saturated pixel colors. Such color filters are well
known both as absorption filters and as interference
reflective filters and therefore both types would
have been obvious as chromatic modulation devices as
set out in claim 10. Such filters, whether
absorption filters or reflective filters, clearly
would provide aspects (1) and (2) above when
introduced into the Fig. 9 arrangement of Loiseaux
et al. Additionally, claim 10 would read on such
obvious devices, whether or not more than one color
was attenuated because claim 10 merely requires
tuning and transmission of a predetermined
wavelength, not only a predetermined wavelength,
although it would have been obvious to filter only
one color because such would provide substantial
chromatic correction more easily and with the least
total loss of intensity.
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007