Canon LV-7545U, Service Manual

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4. COMMENTARY
4.1 External appearance design
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External Styling
The entire body is designed with smooth curves and uses simple lines for the BRIGHT
indicator on the top and the infrared receiver on the front panel.
This gives an impression of a modern sophisticated office equipment suitable for the
flagship model of Canon new-generation projector.
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Coloring
The new-generation Canon projectors have two basic colors of satin metallic silver,
which evokes a sophisticated image, and glacial blue, which makes you feel at ease.
This projector has larger glacial blue areas than the other new models and the
operation keys and the Canon logo colored a glossy metallic color to give an
impression of a sophisticated office equipment.
In addition, its details have been designed carefully to make it worth the top model by
painting all screws silver, for example.
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Usability
The projector can be operated easily because of high visibility with larger letters with
high-contrast color printed on the operation panel and near connectors.
The lamp and lenses are designed as follows so that they can be easily replaced.
• The lens assembly can be accessed by removing two screws on the top and the
cover.
• The projector has a lamp replacement lid on the back. The lamp assembly can be
accessed by removing two screws from the lid..
4.2 Optical System
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The projection lenses have been newly designed and the LCD panel has been improved
to achieve high brightness and high contrast. In addition, the power-driven Turbo
Bright System has been built into the projector to realize the top-level brightness of
3700 ANSI lumen in its class..
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Large aperture zoom lens: f1.7
large aperture f1.7 projection lens is adopted. The optical system has 11 groups of 13
elements. The zoom has been designed so that four of six groups are moved to
minimize aberrations and improve illuminance ratio.
This product offers the highest brightness in its class and excellent resolution.
All lenses are made from lead-free glass
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LCD panel
The opening ratio of the LCD panel has been increased to improve transmittance and
the contrast improvement film has been modified to achieve the highest level of
contrast ratio of 800:1 (all white/all black).
Part 1: General Information
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