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NEC MT1020 Installation Manual

Download Installation data of NEC 1020THRO Projector for Free or View it Online on All-Guides.com. This version of NEC 1020THRO Manual compatible with such list of devices, as: 1020THRO, LCDMT1020, MT1020, MT820

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Visual Systems Division

Technical Bulletin

MultiSync



MT820/MT1020 Installation Data

Desk Top and Ceiling Mount

Page1

Contents

Notes and Formulas Page 1

Projection Distances and Screen Sizes

Ceiling Mount (Lens Wide) Page 2

Ceiling Mount (Lens Telephoto) Page 3

Desktop Setup (Lens Wide) Page 4

Desktop Setup (Lens Telephoto) Page 5

Cabinet Dimensions Page 6

Ceiling Mount Dimensions Page 7

Notes `

§ For Screen Sizes of 60 to 300 inches not indicated on the projection tables, use the formulas below.

§ Set the projection distance based on the width of the screen.

§ If the figures on the tables do not match the figures in the formulas, use the figures in the table.

Formulas

Units: Inches Units: Millimeters

M = 1.25 x W / 33.02 M = 1.25 x W / 1.3

A = C / COSINE α A = C / COSINE α

B = (8 x M) + 5.598 B = (8 x M) + 142.2

C (Zoom Wide) = (53.2 x M) - 3.37 C (Zoom Wide) = (53.2 x M) - 85.609

C (Zoom Telephoto) = C (Zoom Wide) x 1.3055 C (Zoom Telephoto) = C (Zoom Wide) x 1.3055

D = (3 x W / 8) - E D = 25.4 x (3 x W / 8) - E

E = (8 x M) + 3.433 E = (8 x M) + 87.2

αα = TAN

-1

((E - 3.433) / C) αα = TAN

-1

((E - 87.2) / C)

W = Width of Screen

A = Distance between lens center and screen center

B = Vertical distance between top of NEC ceiling mount and screen center

C = Horizontal throw distance between screen surface and projector lens

D = Vertical distance between projector base and screen bottom

E = Vertical distance between desk top level and screen center