Optoma L1 + CLR frame screen 16:9

Optoma L1 Specifications

Colour: Black

Display
Display Technology DLP™
Resolution UHD (3840x2160)
Brightness 2.500Lumen
Brightness (HK/ANSI) 2500/1050
Contrast 1.800.000
Picture 16:9
Keystone correction - horizontal 10°
Keystone correction- vertikal 10°
Colors (Million) 1073.4
Horizontal Scan Rate 15 ~ 135Khz
Vertikal Scan Rate 50 ~ 240Hz
Uniformity 85%
Screen size 1.9m ~ 3.05m (75" ~ 120") diagonale

Lamp type
Lamp: LED
LED 30.000 hours

Optik
Projektions ratio 0.25:1
Projektion distance(m) 0.47m - 0.74m
focal distance (mm) 2.63mm
Native Offset 126%

Conections
Conections 3 x HDMI 2.0
Outputs 1 x Audio 3.5mm, 1 x USB-A Power 1,5A, 1 x
S/PDIF, 1 x Micro-USB

General Infos
Noise ECO 24dB
Noixe (max) 28dB
3D compatibility Yes (DLP 3D)
3D ready
Security: Kensington Lock, Pass
Interface
OSD / Display languages: Arabisch, Tschechisch, Norwegisch/Dänisch,
Niederländisch, Englisch, Farsi, Finnisch, Französisch,
Deutsch, Griechisch, Ungarisch, Indonesisch, Italienisch,
Japanisch, Norwegisch, Polnisch, Portugiesisch, Rumänisch,
Russisch, Chinesisch (vereinfacht), Spanisch, Schwedisch,
Chinesisch (traditionell), Türkisch, Vietnamesisch
360° Yes
Betriebsbedingungen 0~40°C/32°F~104°F, max altitude 10,000ft, max humidity 80%
Remote control
Speakers 2
per speaker 10W
1x Smart Dongle

Current consumption
Voltage 100V ~ 240V, 50-60Hz
Current (min) 95W
Current (max) 165W

Weight and size
Size (B x T x H) (mm) 400 x 316 x 102.3
Gross weight 7.8 kg
Net weight 5.1 kg

High quality frame projection screen from Leinwandbau.info:

You buy a CLR frame screen for ultra short throw (UST) projectors. Frame width 10mm slim frame. Easy installation system. 

The frame projection screen consists of an aluminium frame to be pluged together from yourself. There will be glas fiber sticks all around the projection screen fabric. This glas fiber sticks will be stretched with springs to the aluminium frame. The Frame screen does have 36mm thickness. Wall holder is inclusive. 

Gainfactor: 0,7

Viewing angle: 175°

This projection screen fabric is called CLR Pet crystal. This kind of screen does show fins which are colored black from on side (top side) and white/gray from the other side (bottom side).

This is the reason why the screens reflects the light just from one side (bottom side) perfectly, but not/alot less from the other side (top side). This effect is used by ultra short throw projectors because they send the light from bottom side to the screen. So the fabric just reflects the light from the projector but not from other light soures like windows or lamps which come from higher sources.

Size chart: