ISO/IEC 21118:2005

Information to be included in specification sheets — Data projectors

ISO/IEC 21118:2005 is applicable for information to be included in specification sheets about front projection type, fixed resolution and light valve system, and data projectors having a computer signal input port capable of projecting the image outputs from a computer, VCR or other devices.

Information à inclure dans les feuilles de spécifications — Projecteurs de données

General Information

• Status: Withdrawn
• Publication Date: 25-Aug-2005
• Withdrawal Date: 25-Aug-2005
• ICS: 35.260 - Office machines
• Technical Committee: ISO/IEC JTC 1/SC 28 - Office equipment
• Drafting Committee: ISO/IEC JTC 1/SC 28 - Office equipment
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 04-Dec-2012

Relations

• Revised: ISO/IEC 21118:2012 - Information technology — Office equipment — Information to be included in specification sheets — Data projectors
• Effective Date: 16-Oct-2010

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 21118
First edition
2005-08-15


Information to be included in
specification sheets — Data projectors
Information à inclure dans les feuilles de spécifications — Projecteurs
de données




Reference number
ISO/IEC 21118:2005(E)
©
ISO/IEC 2005

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ISO/IEC 21118:2005(E)
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©  ISO/IEC 2005
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ISO/IEC 21118:2005(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Terms and definitions. 1
3 Measuring methods and conditions . 2
4 Items in specification sheets. 2
Annex A (normative) Specification sheets . 6
Annex B (informative) Measuring methods and conditions . 10
Bibliography . 15

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ISO/IEC 21118:2005(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members of
ISO or IEC participate in the development of International Standards through technical committees
established by the respective organization to deal with particular fields of technical activity. ISO and IEC
technical committees collaborate in fields of mutual interest. Other international organizations, governmental
and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
ISO/IEC 21118 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 28, Office equipment.

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INTERNATIONAL STANDARD ISO/IEC 21118:2005(E)

Information to be included in specification sheets — Data
projectors
1 Scope
This International Standard is applicable for information to be included in specification sheets about front
projection type, fixed resolution and light valve system, and data projectors having a computer signal input
port capable of projecting the image outputs from a computer, VCR or other devices.
NOTE 1 It also covers Data projectors that have a video signal input port as well as a computer signal input port.
NOTE 2 It is not applicable to units with a rear projection system or with a video input terminal alone.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
light valve
a system which creates an optical image by electrical means using light from a separate source
2.2
telephoto end
the maximum focal length position of the zoom lens
2.3
wide-angle end
the minimum focal length position of the zoom lens
2.4
resize
process which converts an input image signal from one resolution and dot number to an image with a different
resolution or dot number
2.5
lens shift
a specific function which enables changing the location of the image on the projection screen by moving the
lens vertically (up/down) and/or horizontally (left/right) without moving the projector itself
2.6
image position(a measure of the affect of lens shift)
the reference point is defined as the point on the projection screen that is intersected by the physical axis of
the projection lens
up image position = (Distance between top edge and reference point)
down image position = (Distance between bottom edge and reference point)
left image position = (Distance between left edge and reference point)
right image position = (Distance between right edge and reference point)
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ISO/IEC 21118:2005(E)
when image position is variable by lens shift feature, maximum and minimum positions should be
specified
example specification of image positions for a data projector with lens shift:
up/down 1:10 to 10:1, right /left 1:3 to 3:1
this means that the up image position with maximum lens shift upward is 10 times the up image position
with no lens shift
similarly the down image position with maximum lens shift downward is 10 times the down image position
with no lens shift
likewise, the right image position with maximum lens shift right is 3 times the right image position with no
lens shift
likewise, the left image position with maximum lens shift is 3 times the left image position with no lens
shift
note that if there is no lens shift in the horizontal direction right/left 1:1 would be the value given for
right/left image position.
2.7
front projection system
a projection system (of a projector) focuses an image onto a screen by projected light. The image from a light-
reflecting screen is viewed from the projector side of the screen
2.8
rear projection system
a projection system (of a projector) focuses an image onto a screen by projected light
NOTE The image is viewed from the opposite side of the light transmitting screen.
3 Measuring methods and conditions
Annex B (informative) shows measuring methods and conditions for the performance specification items in
Table 1.
4 Items in specification sheets
Item, item specification and specification examples are shown in Table 1. They are fundamental properties,
which must be included in the specification sheets.
The lower-limit values of the projector must maintain 80% of the values in specification sheets for the
brightness, contrast ratio and light output uniformity.
The specification sheets must have a statement, which says that they are made in accordance with this
standard.
They must use the same number as Table 1 exactly.
Items may be omitted if the projector has no function for it. When an item is omitted, numbers of the following
items may not be changed.
An example specification sheet is shown in Annex A (normative).
NOTE When items and values are extracted from specification sheets, they can be listed in any order and their
number may not be specified.
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ISO/IEC 21118:2005(E)
Table 1 — Performance specification item
No. Item Item specification Specification example
1 Product number, type The product name, type name, model
name, or model number numbers, or product numbers must be
entered.
2 Display system The light valve type must be indicated. a) LCD, micro mirror, other
b) transmitting, reflecting
c) single panel, 3 panel, other
3 Optical system The optics for colour separation and a) Dichroic mirror separation-prism
convergence must be indicated. convergence system
b) Time sharing separation/
convergence system
c) other
4 Display device
4.1 Size of effective display Size, number of panels and aspect ratio must
1,3” × 3, aspect ratio 4:3
area be indicated.
4.2 Number of pixels The numbers of pixels per sheet, numbers of
480 000 pixels (800 × 600) × 3 sheets,
sheets, and total numbers of pixels must be 1 440 000 pixels in total
indicated.
4.3 Other Features of display device must be indicated. without micro lens
5 Projection lens
5.1 Zoom Zoom magnifications must be indicated.
Power zoom (1× to 1,4×)
5.2 Focus Method of focus adjustment must be Manual, or powered
indicated.
5.3 Lens shift Image position for maximum and minimum Up/down 1:10 to 10:1, right /left 1:3 to
lens shift (if any) must be specified 3:1 (in case of variable lens shift in
both horizontal and vertical directions)
Up/down 10:1 right/left 1:1 (in case of
no right/left lens shift)
5.4 Focal length (mm) Focal length and Aperture must be indicated. f = 52 mm – 73 mm
Aperture f/2,5 –2,9
6 Light source The light source lamp type (name), wattage, 300 W metal halide lamp
and quantity must be indicated. Lamp
number can be omitted if only one lamp is
used.
7 Screen size The minimum and maximum sizes of the Image size 0,4 m × 0,3 m minimum to
[Projection distance] projected image must be indicated. The
2 m × 1,5 m maximum for projection
associated projection distance must also be
distance 0,8 m minimum to 4 m
indicated. Telephoto end is for minimum size
maximum
and wide-angle end for maximum size must
be given for a zoom lens.
8 Number of colours The maximum number of reproducible Full-colour reproduction (16 700 000
colours must be indicated. colours)
9 Light output The light output on a projected screen must Average value of production units must
be measured and indicated. be indicated.
800 lm (see Annex B, B.2.2)
10 Contrast ratio The ratio of illuminance between the white Average value of production units must
(full white/full black) and black areas of images must be indicated. be indicated.
200:1 (full white/full black)
(see Annex B, B.2.3)
11 Light output uniformity
The ratio between the center luminance and Average value of production units must
4-peripheral-point average luminance of a be indicated.
full-white image must be indicated. 85 % (see Annex B, B.2.4)
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ISO/IEC 21118:2005(E)
Table 1 (continued)
No. Item Item specification Specification example
12 Audio output The output power must be indicated. Either 10 W + 10 W stereo
stereo or monaural must be indicated as well. (see Annex B, B.3)
13 Speaker The diameter and quantity must be indicated.
∅5 cm × 2
14 Displayable scanning
frequency
14.1 Horizontal The range of displayable horizontal 15 kHz to 100 kHz
frequencies must be indicated.
14.2 Vertical The range of displayable vertical frequencies 50 Hz to 120 Hz
must be indicated.
15 Display resolution
15.1 For computer signal The maximum display resolution for Maximum display resolution
input computer input must be indicated. Notational 1024 dots × 768 dots (resizing)
convention method must be indicated as well.
Panel display resolution
When display resolution is beyond the panel
800 dots × 600 dots
native resolution, it also must be indicated.
The displayable video signal type (system)
and resolution must be indicated. If there are
two or more signal types (systems), all of
them may be specified.
15.2 For video signal input If there are two or more signal types NTSC: 550 TV lines,
(systems), all of them may be specified. (S-video input)
PAL/SECAM: 350 TV lines
(see Annex B, B.4)
16 Computer signal The signal type, connector type and number RGB input: 2 lines
input/output of connectors must be indicated. Any order of RGB output: 1 line
entries and contents are acceptable. If the RGB input port (mini-D-sub 15-pin)
terminal has several functions, this may be RGB output port (mini-D-sub 15-pin)
entered as a remark. Audio input port (RCA pin L/R)
17 Video signal The signal type, connector type, and number Video/S-video input: 1 line Video
input/output of connectors must be indicated. Any order of input port (RCA pin) S-video port
entries and contents are acceptable. If the (mini-DIN 4-pin) Audio input port
terminal has several functions, this may be (RCA pin L/R)
entered as a remark.
18 Control signal The control signal input/output port and other RS-232C and mouse input ports
input/output relevant descriptions must be given. Any
order of entries and contents are acceptable.
19 Acoustic Noise If the noise values other than the maximum Noise measurements must be made by
[1]
value is entered, its working condition must ISO 9296 .
be indicated. 35dB(A weighted)
At eco mode, 30dB(A weighted)
(see Annex B, B.5.2)
20 Operating temperature The temperatures (relative humidity) at which 5 °C to 35 °C (20 % to 70 %)
(operating humidity) the product normally operates must be
indicated. The humidity need not always be
indicated.
21 Power requirements The rated voltage and frequency must be AC100V, 50/60Hz
indicated.
22 Power consumption The maximum power consumption must be 380 W (see Annex B, B.6)
indicated in watts. Information about standby
and power-saving modes can optionally be
entered.

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ISO/IEC 21118:2005(E)
Table 1 (continued)
No. Item Item specification Specification example
23 Outside dimensions The outside dimensions (width, height, and W 300 mm × H 150 mm × D 400 mm
depth) of the product must be indicated in
(without protrusions)
millimeters. The width, height, and depth may
be indicated in any order. If there are any
exceptions, they must be specified within
parentheses.
24 Weight The weight of the product must be indicated 15 kg (detachable remote controller
in kilograms. If there are any exceptions, they included)
must be specified within parentheses.
25 Accessories The names and quantities of the accessories Remote controller, lens cap, RGB
supplied together with the product must be cable, mouse cable, power cable, and
indicated. instruction manual
26 Other functions Feature
...