Kalkulátor projekční vzdálenosti Panasonic PT RZ21KEJ

Power supply: AC 200 V–240 V, 7.7 A, 50/60 Hz
(Light output will decrease to approximately 50 % when using the projector with AC 100 V to AC 120 V [9.6 A].)

Power consumption: 1,510 W (0.3 W with Standby Mode set to ECO, 4 W with Standby Mode set to NORMAL)

Brightness: 20,000 lm

Panel size: 24.4 mm (0.96 in)
diagonal (16:10 aspect ratio)
Display method: DLP™ chip x 3, DLP™ projection system

Pixels: 6,912,000 (1920 x 1200 x 3) pixels

Refresh Rate: 120 Hz

Lens: Optional (no lens included with this model)

Light source: Laser Diode (Laser class: Class 1)(Class 3R for US models), Light source life: 20,000 hours (NORMAL Mode, brightness decreases to approx. 50 %) / 24,000 hours (ECO Mode, brightness decreases to approx. 50 %)

Screen size (diagonal): 1.78–25.4 m (70–1,000 in)
with 16:10 aspect ratio
1.78–15.24 m (70–600 in)
with the ET-D75LE8, 16:10 aspect ratio
1.05–15.24 m (120–600 in)
with the ET-D75LE95, 16:10 aspect ratio

Center-to-corner uniformity: 90 %

Contrast: 20,000:1 (Full On/Full Off, Dynamic Contrast Mode: 3)

Resolution: 1920 x 1200 pixels

RGB: fH: 15−100 kHz, fV: 24−120 Hz, dot clock: 162 MHz or less

Video/YC: fH: 15.73 kHz, fV: 59.94 Hz (NTSC/NTSC4.43/PAL-M/PAL60),
fH: 15.63 kHz, fV: 50 Hz (PAL/PAL-N/SECAM)

Installation: Horizontal/vertical, free 360-degree installation

Dimensions (W x H x D): 598 × 270 × 725 mm (23 17/32˝ x 10 5/8˝ x 28 17/32˝) (not including protruding parts)

Weight: 49.0 kg (108 lbs)

Operation noise: 46 dB

Kalkulátor projekční vzdálenosti Panasonic PT DZ16K

Power supply
200-240 V AC, 50/60 Hz (Max current requirements: 12 A @200 V)
Power consumption
2,150 W (0.3 W with STANDBY MODE set to ECO,*1
9 W with STANDBY MODE set to NORMAL.)
Dissipation BTU
Max. 7,338 BTU/hour (without light output: 7,127 BTU/hour)
DLP™ chip
Panel size

1. 1 mm (0.95 in) diagonal (16:9 aspect ratio)

Display method
DLP™ chip x 3, DLP™ projection system
Pixels
2,073,600 (1,920 x 1,080) x 3, total of 6,220,800 pixels
Lens
Optional powered zoom/focus lenses
Lamp
420 W UHM lamp x 4, replacement cycle of up to 3,000 hours*2
Screen size (diagonal)

1. 78-25.4 m (70-1,000 in),
2. 78-15.24 m (70-600 in) with the ET-D75LE8, 16:9 aspect ratio

Brightness*3
16,000 lm (four-lamp)
Center-to-corner uniformity*3
90 %
Contrast*3
10,000:1 (full on/off, with dynamic iris set to "3")
Resolution
1,920 x 1,080 pixels
(Input signals that exceed this resolution will be converted to 1,920 x 1,080 pixels.)
Scanning frequency
SDI
3G-SDI
SMPTE ST 424 compliant,
[YPBPR 4:2:2 10-bit] 1080/50p, 1080/60p,
[RGB 4:4:4 12-bit /10-bit] 1080/50i, 1080/60i, 1080/25p,1080/24p, 1080/24sF, 1080/30p
HD-SDI
SMPTE ST 292 compliant, [YPBPR 4:2:2 10-bit]
720/50p, 720/60p, 1035/60i, 1080/50i, 1080/60i, 1080/25p, 1080/24p, 1080/24sF, 1080/30p
SD-SDI
SMPTE ST 259 compliant, [YCBCR 4:2:2 10-bit] 480i, 576i
HDMI/DVI-D
480i4, 480p, 576i4, 576p, 720/60p, 720/50p,
1080/60i, 1080/50i, 1080/24p, 1080/24sF, 1080/25p, 1080/30p, 1080/60p, 1080/50p,
VGA (640 x 480)-WUXGA*5 (1,920 x 1,200),
compatible with non-interlaced signals only, dot clock: 25-162 MHz
RGB
fH: 15-100 kHz, fV: 24-120 Hz, dot clock: 162 MHz or less
YPBPR (YCBCR)
fH: 15.73 kHz, fV: 59.94 Hz [480i (525i)]
fH: 15.63 kHz, fV: 50 Hz [576i (625i)]
fH: 45.00 kHz, fV: 60 Hz [720 (750)/60p]
fH: 33.75 kHz, fV: 60 Hz [1035/60i]
fH: 28.13 kHz, fV: 50 Hz [1080 (1125)/50i]
fH: 27.00 kHz, fV: 24 Hz [1080/24p]
fH: 33.75 kHz, fV: 30 Hz [1080/30p]
fH: 56.25 kHz, fV: 50 Hz [1080/50p]
fH: 31.47 kHz, fV: 59.94 Hz [480p (525p)]
fH: 31.25 kHz, fV: 50 Hz [576p (625p)]
fH: 37.50 kHz, fV: 50 Hz [720 (750)/50p]
fH: 33.75 kHz, fV: 60 Hz [1080 (1125)/60i]
fH: 28.13 kHz, fV: 25 Hz [1080/25p]
fH: 27.00 kHz, fV: 48 Hz [1080/24sF]
fH: 67.50 kHz, fV: 60 Hz [1080/60p]
Video/Y/C
fH: 15.73 kHz, fV: 59.94 Hz [NTSC/NTSC4.43/PAL-M/PAL60],
fH: 15.63 kHz, fV: 50 Hz [PAL/PAL-N/SECAM]
Optical axis shift
Vertical
±60 % (±50 % with the ET-D75LE6) from center of screen (powered)
Horizontal
±20 % (±15 % with the ET-D75LE6) from center of screen (powered)
Keystone
correction
range*6
Vertical
Vertical : ±40° with the ET-D75LE10/ET-D75LE20
(±22° with the ET-D75LE50, ±28° with the ET-D75LE6)
Horizontal
Horizontal: ±15°
Installation
Ceiling/floor, front /rear
Terminals
SDI IN
BNC x 1 (3G/HD/SD-SDI)
HDMI IN
HDMI 19-pin x 1 (Deep Color, compatible with HDCP)
DVI-D IN
DVI-D 24-pin x 1 (DVI 1.0 compliant, compatible with HDCP, compatible with single link only)
RGB 1 IN
BNC x 5 (RGB/YPBPR/YCBCR/YC x 1)
RGB 2 IN
D-Sub HD 15-pin (female) x 1 (RGB/YPBPR/YCBCR x 1)
VIDEO IN
BNC x 1 (composite video)
SERIAL IN
D-sub 9-pin (female) x 1 for external control (RS-232C compliant)
SERIAL OUT
D-sub 9-pin (male) x 1 for link control
REMOTE 1 IN
M3 x 1 for wired remote control
REMOTE 1 OUT
M3 x 1 for link control
REMOTE 2 IN
D-sub 9-pin (female) x 1 for external control (parallel)
LAN
RJ-45 x 1 (for network connection, 10Base-T/100Base-TX, compliant with PJLink™)
Cabinet materials
Molded plastic
Dimensions (W x H x D)
620 x 2917 x 800 mm (24-7/16 x 11-15/327 x 31-1/2 in) (optional lens not included)
Weight*8
Approximately 43 kg (94.8 lbs) (optional lens not included)
Operation noise*3
48 dB (quad lamp operation)
Operating environment
Operating temperature: 0-45°C (32-113°F)*9, operating humidity: 10-80 % (no condensation)
Applicable software
Logo Transfer Software, Multi Projector Monitoring & Control Software
Supplied accessories
Power cord with secure lock, wireless/wired remote control unit, batteries (R6/AA type x 2)

General Power supply 200-240 V AC, 50/60 Hz Power consumption 1,850 W (18 W with standby mode) LCD panel Panel size 46 mm (1.8 inches) diagonal (4:3 aspect ratio) Display method Transparent LCD panel (x 3, R/G/B) Pixels 786,432 (1,024 x 768) x 3, total of 2,359,296 pixels Pixel configuration Stripe Pure color control device 1 Lens Optional Lamp 380 W x 4, lamp replacement cycle (lamp power: Normal/Eco1, Eco2): 2,000 hours/3,000 hours1 Screen size (diagonal) 1.02–15.24 m (40–600 inches) (2.54–15.24 m [100–600 inches] with the ET-ELS03), 4:3 aspect ratio Brightness2 16,000 lm (4-lamps, lamp power: Auto/Normal, Optional lens: ET-ELS03) Center-to-corner uniformity2 90 % Contrast2 2,500:1 (full on/full off, 4-lamps, lamp power: Auto) Resolution 1,024 x 768 pixels (Input signals that exceed this resolution will be converted to 1,024 x 768 pixels.) Scanning frequency HDMI/DVI-D Horizontal: 26–80 kHz, vertical: 23–85 Hz, dot clock: 162 MHz or lower RGB (analog) fH: 15–120 kHz, fV: 48–120 Hz, dot clock: 230 MHz or lower (Signals exceeding the dot clock rate of 165 MHz are downsampled.) YPBPR (YCBCR) fH: 15.75 kHz, fV: 60 Hz [480i (525i)]
fH: 31.50 kHz, fV: 60 Hz [480p (525p)]
fH: 45.00 kHz, fV: 60 Hz [720 (750)/60p]
fH: 33.75 kHz, fV: 60 Hz [1035/60i]
fH: 28.13 kHz, fV: 50 Hz [1080 (1125)/50i]
fH: 28.13 kHz, fV: 50 Hz [1080/25sF]
fH: 27.00 kHz, fV: 48 Hz [1080/24sF]
fH: 33.75 kHz, fV: 60 Hz [1080/30sF]
fH: 56.25 kHz, fV: 50 Hz [1080/50p] Video/S-Video fH: 15.75 kHz, fV: 60 Hz [NTSC/NTSC4.43/PAL-M/PAL60],
fH: 15.63 kHz, fV: 50 Hz [PAL/PAL-N/SECAM] Optical axis shift With the ET-ELW06: vertical ±39% from center of screen (powered)*3
With the ET-ELW02/ELW04/ELS03/ELM01/ELT02/ELT03: vertical ±39%, horizontal ±10% from center of screen (powered)
With the ET-ELS02: vertical ±50%, horizontal ±10% from center of screen (powered)
With the ET-ELW03: the optical lens shift function cannot be used. Keystone correction range Vertical: Maximum ±40°, Horizontal: Maximum ±40°
(with XGA signal input, for vertical/horizontal correction only, Optional lens: ET-ELS03) Installation Ceiling/floor, front/rear Terminals INPUT1 - DVI-D IN DVI-D 24-pin x 1
(DVI 1.0 compliant, compatible with HDCP, compatible with single link only), 480p, 576p, 720/60p, 720/50p, 1080/60i, 1080/50i, 1035/60i, 1080/24p, 1080/24sF, 1080/25p, 1080/25sF, 1080/30p, 1080/30sF, 1080/60p, 1080/50p, VGA (640 x 480)–WUXGA (1,920 x 1,200)*4,
compatible with non-interlaced signals only, dot clock: 25–162 MHz INPUT1 - HDMI IN HDMI 19-pin x 1
(compatible with HDCP, compatible with Deep Color), 480p, 576p, 720/60p, 720/50p, 1080/60i, 1080/50i, 1035/60i, 1080/24p, 1080/24sF, 1080/25p, 1080/25sF, 1080/30p, 1080/30sF, 1080/60p, 1080/50p, VGA (640 x 480)–WUXGA (1,920 x 1,200)*4,
compatible with non-interlaced signals only, dot clock: 25–162 MHz INPUT1 - ANALOG IN D-sub HD 15-pin (female) x 1 (RGB x 1) INPUT2 - RGB 5BNC IN/ VIDEO IN BNC x 5 (RGB/YPBPR/YCBCR x 1), shared with VIDEO IN (BNC x 1) (composite video) INPUT2 - S-VIDEO IN Mini DIN 4-pin x 1 (S-Video) INPUT3/INPUT4 Optional interface board slot, When the ET-MD16SD1 is installed,
SERIAL IN (SDI IN 1/2): BNC x 2 (SD-SDI signal/single link HD-SDI signal)
SD-SDI signal (YCBCR 4:2:2 10-BIT): 480i, 576i (SMPTE 259M-C compliant)

Single-link HD-SDI signal (YPBPR 4:2:2 10-BIT): 720/50p, 720/60p, 1035/60i, 1080/50i, 1080/60i, 1080/25p, 1080/25sF, 1080/24p, 1080/24sF, 1080/30p, 1080/30sF (SMPTE 292M compliant)
SERIAL OUT (SDI OUT): BNC x 1 (active through) SERIAL IN D-sub 9-pin (male) x 1 for external control SERIAL OUT D-sub 9-pin (male) x 1 for link control REMOTE IN M3 Jack x 1 (for wired remote control) LAN RJ-45 x 1 (for network connection, 100Base-TX/10Base-T, compliant with PJLink™ [class1]) USB USB type-B (USB connector) x 1*5 Cabinet materials Molded plastic Dimensions (W x H x D) 650 x 349 x 815 mm (25.6” x 13.7” x 32.1”)
(with legs at shortest position, optional lens not included) Weight Approximately 46.5 kg (102.5 lbs)
(optional lens not included) Noise level 51 dB (lamp power: Normal/Eco2),
48 dB (lamp power: Eco1) Operating temperature 5°C- 40°C 41°F-104°F,
5°C- 30°C 41°F-86°F Operating humidity 20–80 % (no condensation) Supplied accessories Power cord x 1 (x 2 for PT-EX16KE/EX12KE), power cord holder/power cord cover x 1set, wireless/wired remote control unit, batteries (AAA/R03/LR03 type x 2), VGA cable x 1, software CD-ROM (Logo Transfer Software, Multi Projector Monitoring & Control Software, Real Color Manager Pro.), lens attachment x 1set, lens lock lever fixing bracket x 1set, lightshielding plate x 3set, spacer x 1set, cable tie x 3 NOTE *1 The values given for the recommended lamp replacement cycles are maximum.

• 2 Measurement, measuring conditions, and method of notation all comply with ISO 21118 international standards.
• 3 The ET-ELW06 is equipped with only vertical optical axis shift.
• 4 Compliant with VESA CVT-RB.
• 5 This port is for use by service personnel only. The USB interface may not operate with all USB

2 lampový 3čipový DLP projektor nabízí vynikající kvalitu obrazu, spolehlivý provoz, flexibilitu použití a možnost rozšíření funkcí, to vše v kompaktním designu
Životnost lampy 2,500 hodin a nízké provozní náklady díky nízké spotřebě 1,000W (PT-DZ13KEJ), 980W (PT-DS12KEJ, PT-DW11KEJ), 925W (PT-DZ10KEJ)
Kontrast obrazu 10,000:1
Možnost aktivní 3D projekce (PT-DZ13K/DS12K/DW11K)
Upgrade kit (ET-UK20) jako volitelné příslušenství umožňuje novou funkci Geometry Manager Pro pro projekci na speciální zaoblené plochy (PT-DZ13K/DS12K)
Portrait mód (při použití volitelné lampy ET-LAD320P (dvojbalení má označení ET-LAD320PW) a upgrade firmware projektoru verze MAIN Ver. 2.00 nebo vyšší)
Rozměry š x v x h: 530 x 200 x 548,5 mm (bez objektivu)
Hmotnost: 24 kg (bez objektivu)
Software: Logo Transfer Software, Multi Projector Monitoring & Control Software
Geometry Manager Pro (součástí ET-UK20)
Hlučnost: 45 dB (při dual lamp high módu), 43 dB (při dual lamp middle módu) 37 dB (při dual lamp eco módu) u modelu PT-DZ10KEJ 43 dB (při dual lamp normal módu) a 37 dB (při dual lamp edo módu).
Náhradní lampy: ET-LAD310A, ET-LAD310AW (dvojbalení) a ET-LAD320P pro portrait mód, ET-LAD320PW pro promítání na výšku (dvojbalení)
Aplikace: muzea, auly, dohledová centra

Kalkulátor projekční vzdálenosti Panasonic PT EX12K

Power supply 100-240 V AC, 50/60 Hz
Power consumption 940 W (17 W with standby mode)
LCD panel Panel size 46 mm (1.8 inches) diagonal (4:3 aspect ratio)
Display method Transparent LCD panel (x 3, R/G/B)
Pixels 786,432 (1,024 x 768) x 3, total of 2,359,296 pixels
Pixel configuration Stripe
Pure color control device 1
Lens Optional
Lamp 380 W x 2, lamp replacement cycle (lamp power: Normal/Eco1, Eco2): 2,000 hours/3,000 hours*1
Screen size (diagonal) 1.02–15.24 m (40–600 inches) (2.54–15.24 m [100–600 inches] with the ET-ELS03), 4:3 aspect ratio
Brightness*2 13,000 lm (2-lamps, lamp power: Auto/Normal, Optional lens: ET-ELS03)
Center-to-corner uniformity*2 90 %
Contrast*2 4,000:1 (full on/full off, 2-lamps, lamp power: Auto)
Resolution 1,024 x 768 pixels (Input signals that exceed this resolution will be converted to 1,024 x 768 pixels.)
Scanning frequency HDMI/DVI-D Horizontal: 26–80 kHz, vertical: 23–85 Hz, dot clock: 162 MHz or lower
RGB (analog) fH: 15–120 kHz, fV: 48–120 Hz, dot clock: 230 MHz or lower
(Signals exceeding the dot clock rate of 165 MHz are downsampled.)
YPBPR (YCBCR) fH: 15.63 kHz, fV: 50 Hz [576i (625i)]
fH: 31.25 kHz, fV: 50 Hz [576p (625p)]
fH: 37.50 kHz, fV: 50 Hz [720 (750)/50p]
fH: 33.75 kHz, fV: 60 Hz [1080 (1125)/60i]
fH: 28.13 kHz, fV: 25 Hz [1080/25p]
fH: 27.00 kHz, fV: 24 Hz [1080/24p]
fH: 33.75 kHz, fV: 30 Hz [1080/30p]
fH: 67.50 kHz, fV: 60 Hz [1080/60p]
Video/S-Video fH: 15.75 kHz, fV: 60 Hz [NTSC/NTSC4.43/PAL-M/PAL60],
fH: 15.63 kHz, fV: 50 Hz [PAL/PAL-N/SECAM]
Optical axis shift With the ET-ELW06: vertical ±39% from center of screen (powered)*3
With the ET-ELW02/ELW04/ELS03/ELM01/ELT02/ELT03: vertical ±39%, horizontal ±10% from center of screen (powered)
With the ET-ELS02: vertical ±50%, horizontal ±10% from center of screen (powered)
With the ET-ELW03: the optical lens shift function cannot be used.
Keystone correction range Vertical: Maximum ±40°, Horizontal: Maximum ±40°
(with XGA signal input, for vertical/horizontal correction only, Optional lens: ET-ELS03)
Installation Ceiling/floor, front/rear
Terminals INPUT1 - DVI-D IN DVI-D 24-pin x 1
(DVI 1.0 compliant, compatible with HDCP, compatible with single link only), 480p, 576p, 720/60p, 720/50p, 1080/60i, 1080/50i, 1035/60i, 1080/24p, 1080/24sF, 1080/25p, 1080/25sF, 1080/30p, 1080/30sF, 1080/60p, 1080/50p, VGA (640 x 480)–WUXGA (1,920 x 1,200)*4,
compatible with non-interlaced signals only, dot clock: 25–162 MHz
INPUT1 - HDMI IN HDMI 19-pin x 1
(compatible with HDCP, compatible with Deep Color), 480p, 576p, 720/60p, 720/50p, 1080/60i, 1080/50i, 1035/60i, 1080/24p, 1080/24sF, 1080/25p, 1080/25sF, 1080/30p, 1080/30sF, 1080/60p, 1080/50p, VGA (640 x 480)–WUXGA (1,920 x 1,200)*4,
compatible with non-interlaced signals only, dot clock: 25–162 MHz
INPUT1 - ANALOG IN D-sub HD 15-pin (female) x 1 (RGB x 1)
INPUT2 - RGB 5BNC IN/ VIDEO IN BNC x 5 (RGB/YPBPR/YCBCR x 1), shared with VIDEO IN (BNC x 1) (composite video)
INPUT2 - S-VIDEO IN Mini DIN 4-pin x 1 (S-Video)
INPUT3/INPUT4 Optional interface board slot, When the ET-MD16SD1 is installed,
SERIAL IN (SDI IN 1/2): BNC x 2 (SD-SDI signal/single link HD-SDI signal)
SD-SDI signal (YCBCR 4:2:2 10-BIT): 480i, 576i (SMPTE 259M-C compliant)

Single-link HD-SDI signal (YPBPR 4:2:2 10-BIT): 720/50p, 720/60p, 1035/60i, 1080/50i, 1080/60i, 1080/25p, 1080/25sF, 1080/24p, 1080/24sF, 1080/30p, 1080/30sF (SMPTE 292M compliant)
SERIAL OUT (SDI OUT): BNC x 1 (active through)
SERIAL IN D-sub 9-pin (female) x 1 for external control
SERIAL OUT D-sub 9-pin (male) x 1 for link control
REMOTE IN M3 Jack x 1 (for wired remote control)
LAN RJ-45 x 1 (for network connection, 100Base-TX/10Base-T, compliant with PJLink™ [class1])
USB USB type-B (USB connector) x 1*5
Cabinet materials Molded plastic
Dimensions (W x H x D) 538.5 x 268 x 757 mm (21.2” x 10.6” x 29.8”)
(with legs at shortest position, optional lens not included)
Weight Approximately 28 kg (61.7 lbs) (optional lens not included)
Noise level 42 dB (lamp power: Normal/Eco2), 39 dB (lamp power: Eco1)
Operating temperature 0°C- 40°C 32°F-104°F,
0°C- 30°C 32°F-86°F
Operating humidity 20–80 % (no condensation)
Supplied accessories Power cord x 1 (x 2 for PT-EX16KE/EX12KE), power cord holder/power cord cover x 1set, wireless/wired remote control unit, batteries (AAA/R03/LR03 type x 2), VGA cable x 1, software CD-ROM (Logo Transfer Software, Multi Projector Monitoring & Control Software, Real Color Manager Pro.), lens attachment x 1set, lens lock lever fixing bracket x 1set, lightshielding plate x 3set, spacer x 1set, cable tie x 3
NOTE *1 The values given for the recommended lamp replacement cycles are maximum.

• 2 Measurement, measuring conditions, and method of notation all comply with ISO 21118 international standards.
• 3 The ET-ELW06 is equipped with only vertical optical axis shift.
• 4 Compliant with VESA CVT-RB.
• 5 This port is for use by service personnel only. The USB interface may not operate with all USB compatible equipment.

Kalkulátor projekční vzdálenosti Panasonic PT DW11KEJ

2 lampový 3čipový DLP projektor nabízí vynikající kvalitu obrazu, spolehlivý provoz, flexibilitu použití a možnost rozšíření funkcí, to vše v kompaktním designu
Životnost lampy 2,500 hodin a nízké provozní náklady díky nízké spotřebě 1,000W (PT-DZ13KEJ), 980W (PT-DS12KEJ, PT-DW11KEJ), 925W (PT-DZ10KEJ)
Kontrast obrazu 10,000:1
Možnost aktivní 3D projekce (PT-DZ13K/DS12K/DW11K)
Upgrade kit (ET-UK20) jako volitelné příslušenství umožňuje novou funkci Geometry Manager Pro pro projekci na speciální zaoblené plochy (PT-DZ13K/DS12K)
Portrait mód (při použití volitelné lampy ET-LAD320P (dvojbalení má označení ET-LAD320PW) a upgrade firmware projektoru verze MAIN Ver. 2.00 nebo vyšší)
Rozměry š x v x h: 530 x 200 x 548,5 mm (bez objektivu)
Hmotnost: 24 kg (bez objektivu)
Software: Logo Transfer Software, Multi Projector Monitoring & Control Software
Geometry Manager Pro (součástí ET-UK20)
Hlučnost: 45 dB (při dual lamp high módu), 43 dB (při dual lamp middle módu) 37 dB (při dual lamp eco módu) u modelu PT-DZ10KEJ 43 dB (při dual lamp normal módu) a 37 dB (při dual lamp edo módu).
Náhradní lampy: ET-LAD310A, ET-LAD310AW (dvojbalení) a ET-LAD320P pro portrait mód, ET-LAD320PW pro promítání na výšku (dvojbalení)
Aplikace: muzea, auly, dohledová centra