Installing the Projector (Cont.)

Projection Distance and Screen Size

The projector’s projection lens is a zoom lens of about 1.5 x. The screen size at the maximum enlargement is 1.5 times that of the minimum size.

The projection distance that can be focused is 2.5 to 20 m. Install the projector within this range.

Screen

Change of projection screen

according to aspect ratio

 

 

Screen with 4 : 3 aspect ratio

Screen with 16 : 9 aspect ratio

90°

90°

90°

Center line of the lens

Install the projector so the lower edge of the projection screen is at the same height as the lens’ center line.

Projection

 

Projection screen size (diagonal length)

 

When screen aspect ratio is 4 : 3

When screen aspect ratio is 16 : 9

distance

Minimum projection screen

Maximum projection screen

Minimum projection screen

Maximum projection screen

 

8.2 ft

42”

63”

39”

57”

(2.5 m)

(approx. 107 cm)

(approx. 160 cm)

(approx. 100 cm)

(approx. 144 cm)

 

 

 

 

 

16.4 ft

86”

128”

79”

117”

(5 m)

(approx. 219 cm)

(approx. 325 cm)

(approx. 201 cm)

(approx. 297 cm)

 

 

 

 

 

32.8 ft

172”

259”

158”

237”

(10 m)

(approx. 437 cm)

(approx. 657 cm)

(approx. 402 cm)

(approx. 601 cm)

 

 

 

 

 

65.6 ft

345”

521”

317”

478”

(20 m)

(approx. 877 cm)

(approx. 1,323 cm)

(approx. 806 cm)

(approx. 1,214 cm)

 

 

 

 

 

*Also, refer to the table of “Relationship Between Projection Distances and Projection Screen Sizes” on page 17 as a reference.

CAUTIONS and NOTES

Install the screen so the lower edge of the projected picture aligns with the extended center line of the projector’s lens. That way, the lower edge of the picture projected on a 4 : 3 aspect ratio screen aligns with the extended center line of the lens. Also, the screen must be at right angles with the extended center line of the lens (so that projection occurs at right angles with the screen).

When installing the screen, use a 4 : 3 aspect ratio picture.

(A 16 : 9 aspect ratio picture is projected based on the width of the range in which a 4 : 3 aspect ratio picture is projected.)

The diagonal length of a 16 : 9 aspect ratio picture is about 91.8% that of a 4 : 3 aspect ratio picture. This value is a guide and should be used as a reference.

When projecting at the maximum projection distance (20 m/65.6 ft), we recommend that the projector be used with the zoom on the Tele (T).

If sunlight or lamp light strikes the projection screen directly, the picture becomes whitish and dim. Be sure to use a curtain, etc. to shield the light.

Trapezoidal distortion may not be corrected.

Adjust the projector within the range of angle adjustment (up/down adjustment angle: +7°; horizontal adjustment angle: ±1.5°) so that it is set up level.

The numeric values listed in the table of Relationship between Projection Distances and Screen Sizes on page 17 are provided only as a guide or reference. The projection sizes may vary within manufacturing tolerances of the projection lens.

When hanging the projector from the ceiling, use a dedicated hanging fixture.

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Page 17
Image 17
JVC DLA-G20U manual Projection Distance and Screen Size, Projection screen size diagonal length, Center line of the lens

DLA-G20U specifications

The JVC DLA-G20U is a high-performance professional D-ILA projector designed for serious cinema enthusiasts and commercial applications. Renowned for its exceptional picture quality and advanced technology, it boasts a host of features that cater to the most discerning users.

At the heart of the DLA-G20U is its D-ILA (Direct Drive Image Light Amplifier) technology, which is known for producing stunningly accurate color reproduction and extraordinary contrast. This projector incorporates a native resolution of 1920 x 1080 pixels, allowing for full HD viewing that captures every detail with remarkable clarity. The D-ILA panels are also designed to minimize motion blur, providing smooth and fluid visuals for fast-paced action sequences.

One of the standout characteristics of the DLA-G20U is its impressive contrast ratio, which typically exceeds 50,000:1. This high contrast allows for deep blacks and bright whites, enhancing the overall viewing experience by ensuring that subtle details in dark scenes are easily discernible. The projector features sophisticated native 4K upscaling, enabling it to enhance lower resolution content for a sharper, more detailed image, making it versatile for various media types.

Additionally, the DLA-G20U is designed with a robust optical system that includes a high-quality glass lens with a large aperture. This ensures excellent brightness and uniformity across the screen. The projector delivers up to 1500 lumens of brightness, making it suitable for both dark and moderately lit environments.

The connectivity options of the DLA-G20U are impressive, featuring multiple HDMI inputs and additional support for 3D HDMI, which allows it to easily integrate into a range of setups.

For user convenience, the DLA-G20U includes an intuitive on-screen menu system and features customizable settings, allowing users to fine-tune picture quality based on their specific preferences and room conditions.

In terms of maintenance, the projector boasts a long lamp life, reducing the need for frequent replacements. Its sleek design also fits seamlessly into any home theater or commercial space.

Overall, the JVC DLA-G20U stands out as a top-tier D-ILA projector, combining cutting-edge technology, superior image quality, and user-friendly features, making it an exceptional choice for those seeking a premium viewing experience.