Title:
LAMP-EXCHANGING EQUIPMENT ROTATING IN AXIS AND OVERHEAD PROJECTOR HAVING COLOR ADJUSTMENT
Document Type and Number:
Japanese Patent JPH06202228
Kind Code:
A
Abstract:
PURPOSE: To provide an overhead projector by which a lamp under usage is cooled effectively.
CONSTITUTION: An overhead projector is provided with two lamps 30 and 32 which are arranged in a certain angle relation in a frame 28, by which a lamp which is not used, is positioned at the outside of an air flow, and the lamp being used is positioned in the air flow. An axial point 34 coincides with a master screw 36 which enables the axial movement of the lamps 30 and 32, to be executed in addition to the rotation movement for correcting undesirable color influence.
Inventors:
ERUNESUTO RODORIGESU JIYUNIA
BADEIMU ANDAASON KONRADEI
BADEIMU ANDAASON KONRADEI
Application Number:
JP26339093A
Publication Date:
July 22, 1994
Filing Date:
October 21, 1993
Export Citation:
Assignee:
MINNESOTA MINING & MFG
International Classes:
G03B21/132; G03B21/14; G03B21/20; (IPC1-7): G03B21/132; G03B21/14
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)
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