ILLUMINATING APPARATUS AND PROJECTION DISPLAY

WIPO Patent Application WO/1998/009113

A1

An illuminating apparatus which has two lamp units suitable for the illuminating light source of a projection display and enables the bright illumination. A projection display using the illuminating apparatus is also disclosed. The illuminating apparatus has a light source unit and an integrator optical system. Light emitted from the light source unit illuminates an illumination region uniformly through the integrator optical system. The light source unit has a pair of lamp units which are arranged in parallel with each other. The reflectors of the lamp units have outline shapes whose both sides are cut off. It is preferable that the pair of the lamp units are arranged in a direction perpendicular to the longitudinal direction of the illumination region. With this constitution, the illuminating apparatus which is small in size and compact and emits high luminous energy can be realized. If such illuminating apparatus is applied to a projection display, a uniform and bright image can be projected.

ITOH YOSHITAKA (JP)
HASHIZUME TOSHIAKI (JP)

PCT/JP1997/002953

March 05, 1998

August 25, 1997

Click for automatic bibliography generation  

SEIKO EPSON CORP (JP)
ITOH YOSHITAKA (JP)
HASHIZUME TOSHIAKI (JP)

G02B19/00; F21S2/00; F21S8/00; F21V11/00; F21V13/00; F21V13/04; F21V14/00; G02B27/18; G02B27/28; G02F1/13; G02F1/1335; G02F1/13357; G03B21/00; G03B21/14; H04N5/74; H04N9/31; F21Y101/00; (IPC1-7): F21V7/06; G03B21/14

JPH0498213U	1992-08-25
JPH06265823A	1994-09-22
JPH07244282A	1995-09-19
JPH03126026A	1991-05-29

Igarashi, Takao (3-2 Nishiki 1-chome, Naka-k, Nagoya-shi Aichi, JP)

View/Download PDF      PDF Help

Previous Patent: LIGHT FIXTURE APPARATUS FOR A HOSPITAL ROOM

Next Patent: IGNITION DEVICE FOR AN OUTDOOR STOVE