Saha Institute Of Nuclear Physics - West Bengal

35159613 tender for supply installation and testing of fiber optics opto mechanics 60 items 1 polarization maintaining patch cable, panda style, fc/apc connectors on both sides, alignment wavelength 780 nm, operating wavelength 770 1100 nm, cutoff wavelength 710 ± 60 nm, extinction ratio 20 db (min) 22 db (typ.), insertion loss 1.00 db (max) 0.70 db (typ.), mode field diameter 5.3 ± 1.0 μm @ 850 nm, jacket ø3 mm blue pvc tubing, length 5 m 03 nos 2 fc/apc collimation package for pm patch cable, alignment wavelength 780 nm, lens ar coating 650 1050 nm, ravg < 0.5%, waist distance 36.10 mm, full angle divergence 0.008°, na 0.25, focal length 36.01 mm, length 41.4 mm (1.63), connector type fc/apc 03 nos 3 sm1 threaded adapter for compatible cylindrical components of diameter 15 mm, length ≥0.35 (8.9 mm), adapter length 0.59 (15 mm), setscrews two, 1/16 (1.5 mm) hex 03 nos 4 kinematic mount, compatible with 30 mm cage system, sm1 threaded, metric, ±5º tip / tilt, ±3 mm linear translation along the optical axis, accepts ø1 (25.4 mm) optics, maximum optic thickness: 0.23 (5.8 mm), m4 tapped hole for post mounting 03 nos 5 zoom housing for ø1/2 optics, non rotating translation of ø1/2 optics up to 0.25 (6.4 mm) thick, 18 mm of travel at 17 mm per revolution, internal and external sm1 threading for attachment between two fixed sm1 lens tubes 03 nos 6 n bk7 plano concave lens, f = 25.0 mm, optic diameter 1/2 inch, ar coating: 650 1050 nm, radius of curvature 12.9 mm, center thickness 3.0 mm, edge thickness 4.7mm, back focal length 27.0 mm 03 nos 7 n bk7 plano concave lens, f = 30.0 mm, optic diameter 1/2 inch, ar coating: 650 1050 nm, radius of curvature 15.4 mm, center thickness 3.0 mm, edge thickness 4.4mm, back focal length 32.0 mm 03 nos 8 n bk7 plano convex lens, f = 60 mm, optic diameter 1 inch, ar coating 650 1050nm, radius of curvature 30.9 mm, center thickness 4.7 mm, edge thickness 2.0 mm, back focal length 56.7 mm, working distance 52.9 mm, housing sm1 threaded mount 03 nos 9 n bk7 plano convex lens, f = 75 mm, optic diameter 1 inch, ar coating 650 1050nm, radius of curvature 38.6 mm, center thickness 4.1 mm, edge thickness 2.0 mm,back focal length 72.0 mm, working distance 68.2 mm, housing sm1 threaded mount 03 nos 10 n bk7 plano convex lens, sm1 threaded mount, f = 100 mm, optic diameter 1 inch, ar coating 650 1050 nm, radius of curvature 51.5 mm, center thickness 3.6 mm, edge thickness 2.0 mm, back focal length 97.3 mm, working distance 93.5 mm, housing sm1 threaded mount 05 nos 11 lens tube, internal thread depth 0.30 (7.6 mm), 5 pack set, stackable design enables multi element optical systems, sm1 threaded (1.035 40) bore accepts ø1 (ø25.4 mm) optics, length 0.33 (8.4 mm), sm1rr retaining ring 01 set 12 lens tube, internal thread depth 0.50 (12.7 mm), 5 pack set, stackable design enables multi element optical systems, sm1 threaded (1.035 40) bore accepts ø1 (ø25.4 mm) optics, length 0.53 (13.5 mm), sm1rr retaining ring 01 set 13 lens tube, internal thread depth 1.00 (25.4 mm), 5 pack set, stackable design enables multi element optical systems, sm1 threaded (1.035 40) bore accepts ø1 (ø25.4 mm) optics, length 1.03 (26.2 mm), sm1rr retaining ring 01 set 14 sm1 threaded 30 mm cage plate, thickness 0.35 (8.9 mm), 2 retaining rings, inner bore sm1 threaded, post mounting m4 tap, cage rod locking mechanism setscrew, 5/64 (2.0 mm) hex 03 nos 15 cage rotation mount for ø1 optics, sm1 threaded, m4 tap, 360° of continuous rotation, lockable, 2° graduations on dial, labeled every 20°, accepts ø1 (ø25.4 mm) or ø25.0 mm optics, maximum optic thickness: 0.37 (9.4 mm) 03 nos 16 cage assembly rods, 6 inch long, 4 pack set, this allows multiple cage rods to be connected end to end, ø6 mm, precision ground stainless steel, 4 40 removable setscrew at both ends 17 mounting adapter for ø2.75 cf vacuum flange to mount optomechanical components, four smooth bores for 60 mm cage system rods, allows 360° of continuous rotational adjustment, face mounting taps 13 x m6, edge mounting taps 3x m6, outer diameter 4.00 (101.6 mm) 04 nos 18 sm1 threaded 30 mm to 60 mm cage plate adapter, 6 mm thick, centered sm1(1.035 40) tapped hole accepts ø1 optics up to 0.08 (2 mm) thick, through holes for 30 mm and 60 mm cage mounting, not post mountable 02 nos 19 cage assembly rods, 3 inch long, 4 pack set, this allows multiple cage rods to be connected end to end, ø6 mm, precision ground stainless steel, 4 40 removable setscrew at both ends 01 set 20 cage assembly rods, 2 inch long, 4 pack set, this allows multiple cage rods to be connected end to end, ø6 mm, precision ground stainless steel, 4 40 removable setscrew at both ends, 4 pack set 04 sets 21 cage assembly rods, 4 inch long, 4 pack set, this allows multiple cage rods to be connected end to end, ø6 mm, precision ground stainless steel, 4 40 removable setscrew at both ends 03 sets 22 pillar posts of 25.0 mm diameter, length = 300 mm, m6 tapped holes on both ends, torque hole for 5 mm ball driver provides extra leverage during tightening 02 nos 23 cage system clamps for ø1 (ø25.0 mm) pillar posts, quick connect cage clamps for 30 mm cage systems, easy drop in and drop out of cage systems, single cage rod locking screw allows for one handed operation 02 nos 24 ø1 (ø25 mm) post holders with flexure lock and pedestal base, length = 100 mm, post can pass through post holder for minimum beam height 02 nos 25 clamping fork for ø1.5 pedestal post or post pedestal base adapter of 47 mm diameter, 2.12 counterbored slot 02 nos 26 ø31.8 mm studded pedestal base adapter, m6 thread, 5 pack set 03 sets 27 ø1 broadband dielectric mirror, wavelength range 750 1100 nm, 10 pack set, material fused silica, surface flatness λ/10 at 633 nm, surface quality 10 5 scratch dig, clear aperture >85% of diameter (round), thickness 6.0 mm (0.24), reflectance ravg >99% (750 1100 nm), damage threshold for cw laser 10 kw/cm (1070 nm, ø0.971 mm) 01 set 28 fiberport, fc/apc connector, effective focal length efl =11.0 mm, ar coating 600 1050 nm, output 1/e2 waist diameter 2.38 mm, max waist distance 2630 mm, divergence 0.455 mrad, lens characteristics clear aperture 4.4 mm, na 0.20, material h lak54, length 0.88 (22.4 mm) 03 nos 29 fiberport adapter for 30 mm cage system, enhanced clamping, metric, mounting screws for fiberport are included, m4 tapped hole for post mounting, directly compatible with ø1 lens tubes 03 nos 30 mounted polymer zero order half wave plate, optic diameter 25.4 mm (1.00), ar coating range 650 1050 nm, clear aperture ø22.8 mm (ø0.90), optic thickness 3.2 mm, housing threads internal and external sm1 (1.035 40), design wavelength 780nm, transmission at design wavelength ≥ 97%, average reflectance (per coated surface) < 0.5%, retardance accuracy < λ/100, retardance uniformity (rms) < 5 nm, material liquid crystal polymer between n bk7 glass plates, transmitted wavefront error < λ/4 @ 633 nm, surface quality 60 40 scratch dig 05 nos 31 1 x 1 x 1 inch polarizing beamsplitter cube, wavelength range 620 1000 nm, extinction ratio tp:ts > 1000:1, material n sf1, transmission tp > 90%, reflection rs, avg > 95%, surface quality 40 20 scratch dig, damage threshold for cw laser 50w/cm at 810 nm, ø0.019 mm 05 nos 32 beam trap, wavelength range 200 nm 3 μm, max avg. power 80 w, laser type cw only, m4 tap, absorptive material anodized aluminum, max average power density 150 w/cm2 , max energy density 30 mj/cm2 , backscatter 2 x 10 4 @ 633 nm, entrance aperture ø0.43 (ø11 mm), max acceptance angle ±5° 02 nos 33 post mountable standard iris, aperture ø0.8 to ø15 mm (max), 5 pack set, lever actuated, continuously variable iris, black spring steel leaves, bottomlocated m4 threaded stud for post mounting 04 sets 34 n bk7 plano convex lens, sm1 threaded mount, f = 150 mm, optic diameter 1 inch, ar coating 650 1050 nm, radius of curvature 77.3 mm, center thickness 3.1 mm, edge thickness 2.0 mm, back focal length 147.5 mm, working distance 143.7 mm, housing sm1 threaded mount 03 nos 35 n bk7 plano convex lens, sm1 threaded mount, f = 200 mm, optic diameter 1 inch, ar coating 650 1050 nm, radius of curvature 103.0 mm, center thickness 2.8 mm, edge thickness 2.0 mm, back focal length 197.5 mm, working distance 193.7 mm, housing sm1 threaded mount 36 n bk7 plano convex lens, sm05 threaded mount, f = 50 mm, optic diameter 1/2 inch, ar coating 650 1050 nm, radius of curvature 25.8 mm, center thickness 2.6 mm, edge thickness 1.8 mm, back focal length 48.1 mm, working distance 45.3 mm, housing sm05 threaded mount 03 nos 37 lens mount for ø1/2 optics, 5 pack set, internally threaded, m4 tapped hole for mounting to posts, includes compatible retaining ring for mounting optics 02 sets 38 lens mount for ø1 optics, 5 pack set, internally threaded, m4 tapped hole for mounting to posts, includes compatible retaining ring for mounting optics 02 sets 39 n bk7 plano convex lens, sm1 threaded mount, f = 125 mm, optic diameter 1 inch, ar coating 650 1050 nm, radius of curvature 64.4 mm, center thickness 3.3 mm, edge thickness 2.0 mm, back focal length 122.4 mm, working distance 118.6 mm, housing sm1 threaded mount 03 nos 40 n bk7 plano concave lens, sm05 threaded mount, f = 50.0 mm, optic diameter 1/2 inch, ar coating: 650 1050 nm, radius of curvature 25.7 mm, center thickness 3.5 mm, edge thickness 4.3 mm, back focal length 53.4 mm 03 nos 41 n bk7 plano convex lens, f = 175 mm, optic diameter 1 inch, ar coating 650 1050nm, radius of curvature 90.1 mm, center thickness 2.9 mm, edge thickness 2.0 mm, back focal length 172.5 mm 03 nos 42 ø1/2 broadband dielectric mirror, wavelength range 750 1100 nm, 10 pack set, material fused silica, surface flatness λ/10 at 633 nm, surface quality 10 5 scratch dig, clear aperture >85% of diameter (round), thickness 6.0 mm (0.24), reflectance ravg >99% (750 1100 nm), damage threshold for cw laser 10 kw/cm (1070 nm, ø0.971 mm) 01 set 43 1 x 1 x 1 inch polarizing beamsplitter cube, design wavelength 780 nm, extinction ratio tp:ts > 3000:1, material uv fused silica, transmission efficiency tp > 95%, reflection efficiency rs > 99%, surface quality 20 10 scratch dig, ar coating reflectance (0° aoi) rabs <0.25% @ 780 nm 02 nos 44 cage plate stops for er rods, marks the position of cage components, flexure clamping mechanism, 4 pack set 02 sets 45 30 mm cage system compatible snap on functionality for easy installation or removal, firmly lock onto ø6.0 mm er rods with flexure slot locking design, off axis mounting adjustment range ±0.28 (±7.0 mm), m4 slot 02 nos 46 5 mm balldriver, extra long 8 (20.3 cm) shaft with an overall length of 11 (27.9 cm), including the handle 01 no 47 position maintaining post collar for ø1/2 posts and post holders, two piece post collar maintains height and rotational orientation, steel ball and v groove provides ≤ 0.5° angular repeatability 03 nos 48 thin slip on post collar for ø1/2 posts, 5 pack set, 0.23 (5.7 mm) thick 01 set 49 slip on post collar for ø1/2 posts with m6 thumbscrew, 5 pack set, 0.44 (11.2mm) thick, includes vertically aligned 4 40 setscrew 02 sets 50 30 mm cage alignment plate with ø0.9 mm hole, quick, drop in beam alignment tool 01 no 51 reflective 1/2 inch diameter, nd filter, optical density: 0.1, sm05 threaded mount 01 no 52 reflective 1/2 inch diameter, nd filter, optical density: 0.2, sm05 threaded mount 01 no 53 reflective 1/2 inch diameter, nd filter, optical density: 0.3, sm05 threaded mount 01 no 54 reflective 1/2 inch diameter, nd filter, optical density: 0.4, sm05 threaded mount 01 no 55 reflective 1/2 inch diameter, nd filter, optical density: 0.5, sm05 threaded mount 01 no 56 reflective 1/2 inch diameter, nd filter, optical density: 0.6, sm05 threaded mount 01 no 57 reflective 1/2 inch diameter, nd filter, optical density: 0.8, sm05 threaded mount 01 no 58 reflective 1/2 inch diameter, nd filter, optical density: 1.0, sm05 threaded mount 01 no 59 reflective 1/2 inch diameter, nd filter, optical density: 1.3, sm05 threaded mount 01 no 60 reflective 1/2 inch diameter, nd filter, optical density: 2.0, sm05 threaded mount => limited...

Public Works Department - West Bengal

34722986 bids are invited for sitc of wall mount speaker having minimum technical specification , sitc of power amplifier having minimum technical specification , sitc of 12 x 8 digital signal processor having minimum technical specification , sitc of wired gooseneck microphone having minimum technical specification , sitc of base for gooseneck microphone having minimum technical specification , sitc of wireless handheld vocal microphone having minimum technical specification , sitc of wireless lapel microphone having minimum technical specification , sitc of 75 inch touch commercial led uhd display having minimum technical specification , sitc of 55 inch non touch commercial led uhd display having minimum technical specification , sitc of document camera having minimum technical specification , sitc of 20x fhd motion tracking ptz camera for teachers having minimum technical specification , sitc of 12x fhd ptz camera for student having minimum technical specification , sitc of 2 channel pip processor having minimum technical specification , sitc of hdmi or vga to hdmi live video streamer with recording function having minimum technical specification , sitc of 8 x 4 hdmi matrix switcher having minimum technical specification , sitc of hdmi transmitter having minimum technical specification , sitc of hdmi receiver having minimum technical specification , sitc of wall or table plate having minimum technical specification , sitc of touch av control processor with link license having minimum technical specification , sitc of digital lectern having minimum technical specification , sitc of intel core i3 desktop computer having minimum technical specification , sitc of single user antivirus having minimum technical specification , sitc of 03 kva rack mount online ups 1 ph to 1 ph system with minimum 5400 vah back up battery and other accessories having minimum technical specification , sitc of ups sub db 250v 12way spn mcbdb having minimum technical specification , sitc of microsoft 365 with soft vc license having minimum technical specification , sitc of layer 2, 8 port, poe enabled, 120 watt, full managed, 1ru, ge switch, with perpetual license of oem having minimum technical specification , supply of dual band wireless wi fi router having minimum technical specification , sitc of 27u floor mounted cross connect audio video equipment rack having minimum technical specification , sitc of audio video passive accessories will be required to complete the project having minimum technical specification , sitc of networking horizontal un armoured cat6 cable having minimum technical specification , sitc of indoor information outlet with rj45 adapter, gi box and single face cover plate etc having minimum technical specification , sitc of 1mtr cat6 futp patch chord cable having minimum technical specification , sitc of 2mtr cat6 futp patch chord cable having minimum technical specification , sitc of cat 6 uutp 24 port modular fully loaded patch panel having minimum technical specification , supply and laying of pvc conduits with all accessories having minimum technical specification , sitc of single phase ups power distribution to different equipment at different location having minimum technical specification , sitc of high speed broadband internet connectivity having minimum technical specification total quantity : 1290...

Railtel Corporation Of India Limited - West Bengal

33874744 notice inviting expression of interest (eoi) for request for qualification for empanelment of ip tv partner for supply, installation, testing and commissioning of cpe/iptv stb & cdn server along with related hardware, software and tv channel content etc to existing railwire broadband subscribers and to partner with railtel to offer this service to various clients...

Municipal Affairs Department - West Bengal

33539391 quotation for installation for 8 nos of 60 mbps broadband connection for delivering internet service and maintenance for system at inspection bungalow saltlake...

Bharat Sanchar Nigam Limited - West Bengal

32449699 tender for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in (behala & joka) under operation area south ctd....

Bharat Sanchar Nigam Limited - West Bengal

32421450 outsourcing of maintenance and provisioning of landline and broadband for external plant of copper network in ( garia and ranikuthi ) under operation area south ctd....

Bharat Sanchar Nigam Limited - West Bengal

32420289 outsourcing of maintenance and provisioning of landline and broadband for external plant of copper network in (behala and joka) under opeartion area south,ctd....

Bharat Sanchar Nigam Limited - West Bengal

32409097 tender for outsourcing of maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials like drop wire/drop cable, jumper wire, 5 pair cable, ug cable below 50 pr, splitter, lju ,uy connector& dp tag block etc. for a period of 2 years...

Bharat Sanchar Nigam Limited - West Bengal

32409089 tender document for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in russa under operation area south ctd....

Bharat Sanchar Nigam Limited - West Bengal

32339943 outsourcing of maintenance and provisioning of landline, broadband for external plant of copper network in ctd under operational area west , howrah ii cluster ( andul, ichapur area ) ...

Bharat Sanchar Nigam Limited - West Bengal

32339901 outsourcing of maintenance and provisioning of landline broadband for external plant of copper network in burrabazar cluster of oa east / ctd / bsnl maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials for a period of 2 years in burrabazar cluster of operational area east, in ctd, bsnl....

Bharat Sanchar Nigam Limited - West Bengal

32339881 outsourcing of maintenance and provisioning of landline broadband for external plant of copper network in salt lake cluster of oa east / ctd / bsnl maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials for a period of 2 years in salt lake cluster of operational area east, in ctd, bsnl....

Bharat Sanchar Nigam Limited - West Bengal

32339836 outsourcing of maintenance and provisioning of landline broadband for external plant of copper network in dumdum cluster of oa east / ctd / bsnl maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials for a period of 2 years in dumdum cluster of operational area east, in ctd, bsnl....

Bharat Sanchar Nigam Limited - West Bengal

32337776 tender document for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in salt lake cluster under operation area east ctd....

Bharat Sanchar Nigam Limited - West Bengal

32337775 tender document for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in dumdum cluster under operation area east ctd...

Bharat Sanchar Nigam Limited - West Bengal

32337752 tender document for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in burrabazar cluster under operation area east ctd...

Bharat Sanchar Nigam Limited - West Bengal

32337749 tender document for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in tirretta bazar under operation area east ctd....

Bharat Sanchar Nigam Limited - West Bengal

32337748 tender document for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in circus under operation area east ctd....

Bharat Sanchar Nigam Limited - West Bengal

32337724 tender document for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in telephone bhawan under operation area east ctd....

Bharat Sanchar Nigam Limited - West Bengal

32337683 tender document for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in kalighat under operation area south ctd....

Bharat Sanchar Nigam Limited - West Bengal

32321633 outsourcing of maintenance and provisioning of landline broadband for external plant of copper network in telephone bhawan cluster of oa east / ctd / bsnl maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials for a period of 2 years in telephone bhawan cluster of operational area east, in ctd, bsnl....

Bharat Sanchar Nigam Limited - West Bengal

32320485 outsourcing of maintenance and provisioning of landline and broadband for maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials like drop wire / drop cable, jumper wire, 5 pair cable, ug cable below 50 pr, splitter, lju , uy connector and dp tag block etc...

Bharat Sanchar Nigam Limited - West Bengal

32320264 tender document for outsourcing of maintenance and provisioning of landline and broadband for maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials like drop wire / drop cable, jumper wire, 5 pair cable, ug cable below 50 pr, splitter, lju , uy connector and dp tag block etc...

Bharat Sanchar Nigam Limited - West Bengal

32298240 outsourcing of maintenance and provisioning of landline and broadband for maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials like drop wire drop cable, jumper wire, 5 pair cable, ug cable below 50 pr, splitter, lju , uy connector and dp tag block etc...

Bharat Sanchar Nigam Limited - West Bengal

32258576 e tender for outsourcing of maintenance and provisioning of landline & broadband for external plant of copper network in cossipore cluster, operational area north, ctd, bsnl...

Bharat Sanchar Nigam Limited - West Bengal

32232781 digitally sealed tenders are invited for outsourcing of maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials like ug cable, drop wire, jumper wire, clip instruments, lju , splitter....

Bharat Sanchar Nigam Limited - West Bengal

32219401 tender document for outsourcing of maintenance and provisioning of landline and broadband for external plant of copper network in ctd under operational area west cluster howrah i(salkia,shibpur area)...

Bharat Sanchar Nigam Limited - West Bengal

32202181 maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials of asansol operation area under asansol ba...

Bharat Sanchar Nigam Limited - West Bengal

32202178 maintenance and provisioning of landline and broadband network from last pillar to customer premises including materials of durgapur operation area under asansol ba...

Bharat Sanchar Nigam Limited - West Bengal

32202135 tender for outsourcing of maintenance and provisioning of landline and broadband for external plant of copper network in barrackpore bhatpara cluster, operational area (oa) north, ctd, bsnl tender for outsourcing of maintenance and provisioning of landline and broadband for external plant of copper network in barrackpore bhatpara cluster, operational area (oa) north, ctd, bsnl...

Bharat Sanchar Nigam Limited - West Bengal

32183740 tender for outsourcing of maintenance and provisioning of landline and broadband for external plant of copper network in cossipore cluster, operational area ( oa ) north, ctd, bsnl tender for outsourcing of maintenance and provisioning of landline and broadband for external plant of copper network in cossipore cluster, operational area ( oa ) north, ctd, bsnl...