Latest concave lens Tenders | Government concave lens Tenders

CTN :42755030

24 Nov, 2025 15.00 Lacs

Hardoi - Uttar Pradesh

Tender For providing of design installation and maintenance of educational lab - science lab; supply and installation of hardware; buyer - ammeters different range , battery eliminator , daniell cell , drawing board , friction apparatus complete b set with weight box , galvanometer , parallelogram apparatus , key one way , jockey pencil type , two-way key , laclanche cell , meter bridge , multimeter digital , multimeter manual , magnetic compass , optical bench (1 meter long , prism (indian glass) , potentiometer , plier , cutter , screwdriver , scissor , resistance box (different range 0.1 to 10 ohm) , 1 to 10 ohms , 1 to 100 ohms , 1 to 1000 ohms , 1 to 100000 ohms , dry cell 10g (chargeable) , dry cell charger , helical spring apparatus 8 , rheostat , resistance coil different 20 range 1-5 ohms) , resonance apparatus , spherometer , screw gauge , wooden scale (1-50 cm, 1-100 cm) , stopwatch , sonometer , sprit level , thermometer , tuning fork (250 hz, 480 hz and 512 hz) withpad , vernier calliper , voltmeter (different 20 range) , beakers , connecting wires , charts for display (bio visuals) , portraits (as per choice) , concave mirror , convex mirror , convex lens , concave lens , wedge knife edge (for 10 sonometer) , glass slab , pendulum box , cork rubber 1.5 inches , hanger weights 500 gm , insulated copper wire , meter tape (1-100 meter) , soldering iron , spring balance (0-250 10 , u-shaped magnet , copper calorimeter , epidiascope , newton's disc , telescope , camera , barometer tube , lactometer , stove (oil) , electric bell , proof plane , binoculars , soldering rods , p-n junction diode set up , laptop/desktop set , balance (physical) , boyle's law apparatus 2 , fortnis barometer , metallic cylinders , metal sphere , sg bottles , grave sand apparatus , young's modulus , spectrometer , hydrometer , spirit level , potentiometer , silk and cat skin pieces 2 , gold leaf electroscope , tuning fork , ammonium chloride , all pins 1.5" , copper sulphate , drawing pins , thread rolls , balance(chemical) , blow pipe (iron) , test tube brush , cork borer (iron) , cork presser (iron) , crucible tongs (iron) , charcoal slab borer(iran) , crucible(silica) , deflagrating spoon (iron) , distilation apparatus (iron) , drying cones (iron) , funnel stand or filter stand (wooden) , pestle and mortar , pinch cock(iron) , retort stand with ring and clamp , round file , sand bath , spirit lamp (barss) , stoves , test tube stand (wooden) , test tube holder (iron) , triangular stand (iron) , trough(tin) , weight boxes(wooden) , triangular clay pipes (iron wire covered with clay) , beehie sheft , beaker , china dish , conical flasks , dessicator , gas jar dises , flasks (r.b. &f.b.) , funnel , gas jar or cylinder , glazed tile , measuring flasks , pipette , retort , thistle funnel , woulfe's apparatus , kipp's apparatus , ammonium carbonate , ammonium chloride , ammonium sulfate , ammonium bromide , aluminum sulfate , iron sticks , potassium nitrite , ammonium oxalate , sodium thiosulphate , zinc sulfate , cobalt nitrate , sodium hydroxide , copper sulfate , potassium nitrate , oxalic acid , magnesium sulfate , magnesium chloride , ammonium phosphate , sodium chloride , potassium ferrocyanide (k4fe(cn)6) , ferrous sulfate , sodium bromide , ammonium ferrous sulfate , potassium dichromate , barium chloride , strontium nitrate , sodium sulfide (na25) , potassium chromate , lead acetate , sodium sulfate , potassium iodide , lead nitrate , cedric ammonium nitrate , 2.4 dnp , universal indicator , ammonia solution (nh4oh) , phenol , aniline , bromine water , acetaldehyde , acetic acid , fehling solution(a-b) , acetone , carbon disulfide , phenolphthalein , nessler's reagent , ammoniumm olybdate

Corporations And Associations And Others

CTN :42741519

17 Nov, 2025 9.39 Lacs

Delhi - Delhi

Tender For providing and fixing of 210 nos.led street lights fitting with accessories at various locations in badarpur constituency ac-53.list of location attached. - led street light fixture, powder coated pressure die cast aluminum body (system lumen efficacy >135 lm/watt) supplying, installation, testing & commissioning of street light led fixture, powder coated pressure die cast aluminum body with built in or separate driver as per the requirement with driver efficiency >85%, input voltage: 140-270 volt ac, freq 50/60 hz, operating temp range -15 deg to 50 deg centigrade, internal surge protection of 5 kv l,n,e as per iec 61000-4 5, driver efficiency >85%,thd 10% as per iec 61000-3-2 , p. f. 0.95, ip 66,ik-10, cri >80 , under voltage and over voltage protection,emi emc as per cispr-15, lenses for beam angle as per iesna type i/ii/iii as per the width of the road and the project requirement., suitable to fit in up to 65mm dia pipe, life time (led,driver & electrical circuitry) of minimum 50000 burning hours with 70% of initial lumen maintained till life ends as per lm80 extrapolation ies tm-21-11 report , cct 3000 k /4000 k / 5700 k /6000 k/6500 k (as per ansi bin) , sdcm(standard deviation color matching) 5, maximum power consumption should not more than the specified rating and fixture shall be of relevant bis standard complete in all respect i/c connections with 1.5 sq mm frls, pvc insulated copper conductor single core cable and earthing etc. as required with minimum 5 year oem warranty. system lumen efficacy >135 lm/watt output . lm79 & lm80 test report from nabl lab for all testing required for led fixtures as per bis shall be submitted. shape size and cct shall be as approved by engineer-in-charge as per requirement. (thermal management: heat sink of aluminum housing such that led junction temperature shall not rise above 90 c) 45 watt, supply and fixing of 32mm dia x 1 meter long g.i. pipe (medium class) bracket for mounting of fluorescent/hpmv/hpsv street light fitting on pole including bending the pipe to the required shape , 2 nos 25mm x 6mm flat iron clamps with nuts, bolts and washer , painting the flat iron with primer and finish paint etc. as reqd., laying of one number pvc insulated and pvc sheathed/xlpe power cable of 1.1 kv grade of following size in the existing masonry open duct as required. up to 35 sqmm, supply of xlpe insulated pvc sheathed al. conductor un-armoured cable 1.1kv grade conforming to is-7098 of following size:-2c*4 sqmm, supplying and drawing following sizes of frls pvc insulated copper conductor, single core cable in the existing surface/ recessed steel/ pvc conduit as required.3x1.5 sqmm

CTN :42714196

21 Nov, 2025 NA

Kolkata - West Bengal

Tender For supply of 4k 32 ch nvr with 8 sata support upto 64tb , 4k 32 ch nvr sub location 4k , 4mp ir bullet camera with verifocal lenses ip 66 rated sd card slot upto 256 gb , 4mp 30 mtr ir bullet camera with ip 66 rated and accessory , 4mp ir ptz camera with ip 66 rated and accessory , 4mp ir dome turret camra with ip 66 rated and accessory , 10 tb surveillance hard disk for 90 days backup , 32 inch led tv full hd , 43 inch led tv full hd , 8 port poe giga switch with two giga uplink port , 16 port poe giga switch with four giga uplink port , camera mount bracket , 4u outdoor rack with accessory , 12 u server floor rack with accessory , 6 core ofc cable armoured , armoured power cable 3 core 1. 5 sq mm , cat 6 utp cable armoured , outdoor junction box with ofc enclose box , power socket with mcb complete set pud , accessories as per required at site for installation , installation and commissioning charges

CTN :42718040

27 Nov, 2025 NA

Ganderbal - Jammu And Kashmir

Tender For supply of interior mural 3d art complete covering approximate area 5200 sqft for 4 schools , phases of moon manual , newtons colour disk , day and night manual , solar and luner eclipse manual , ray optics kit , solar energey kit , anti gravity , wieght on other planets , vernier calliper , screw gauge , newton s first law , newton s second law , newton s third law , maxwells wheel , primary colours of light , brachistochrone curve , tuning fork , 6 inch dubsonic telescope , solar filter , star laser pointer pen with batteries , magnifying glasses , concave lens , convex lens , concave mirror , convex mirror , prism , handy planisphere , virtual reality box , litmus paper red , litmus paper blue , ph paper 100 strips , atomic balls , test tubes , test tube stand , evaporation experiment 1 retort stand 1 spirit burner 1 china dish 1 wire guage double 1 tripod stand , filteration experiment 1 retort stand 1 retort ring 1 funnel 1 beaker 1 500 ml 1 filter paper 100 pcs , model of heart , model of ear , model of eye , model of kidney , model of brain , human torso megnatic , skeleton , microscope , microscope plane slides , microscope prepared slides , animal cell , plant cell , megnatic set , zodiac constellation 3x3 feet , planisphere 3x3 , we are made of stars , space fun facts poster , chart of physics , chart of geography , model of rocks , model of minerals , model of metals , augmented reality ar board , digestive system chart , separate chart of substances , dissection box , chemistry kit tongs test tube holder and test tube brush , biology kit glycerine safranine cover slips blotting paper , spirit lamp solution , indian astronaut biopic poster , extra items first law strips curve balls 3 bulb for reoptics , tds meter , interactive plate panels display with sliding shutter with ups unit ) /bid number: gem/2025/b/6848979 * /dated: 12-11-2025 & & / bid document1 / 43

CTN :42718146

02 Dec, 2025 NA

Budgam - Jammu And Kashmir

Tender For supply of photographic equipment - mirrorless digital slr camera set with lenses and flash , tripod for camera , ring flash led , cheek retractors pediatric size , cheek retractors adult size , cheek retractors non self retainiing double ended ss , intra oral mirror set , ss tray with lid , cheatle forceps

Central Government/Public Sector

CTN :42567202

17 Nov, 2025 NA

Hyderabad - Telangana

Tender For corrigendum : tender for supply of procurement of 5 types of lenses e e - matl code 10152011200770desc m2ouv4lens 1 drwg no131 13 01 06 01 02 , matl code 10152011200780 descm2ouv4lens 2 drwg no 131 13 01 06 01 04 , matl code 10152011200790 descm2ouv4lens 3 drwg no131 13 01 06 02 02 , matl code 10152011200800desc m2ouv4lens 4 drwg no 131 13 01 06 02 04 , matl code 10152011200810 desc m2ouv4lens 5drwg no 131 13 01 06 02 06

Central Government/Public Sector

CTN :42705947

29 Nov, 2025 1.83 Crore

Kolkata - West Bengal

Tender For supply of three chip dlp projector lenses dmd light engine air filters and custom engineered projector mounting structures for the exiting panorama facility at science city kolkata

CTN :42601075

20 Nov, 2025 NA

Hyderabad - Telangana

Tender For ir lenses for new development

Central Government/Public Sector

CTN :42606016

26 Nov, 2025 NA

Goa - Goa

Tender For supply of magnetic compass - ta sl no 4 1 1 1 transmitting type magnetic compass with electrical transmission , ta sl no 4 1 1 2 magnetic compass binnacle , ta sl no 4 1 1 3 rim ring with two bearings mounted , ta sl no 4 1 1 4 hood without aperture with handles , ta sl no 4 1 1 5 main electric light with suitable cable type of 3 1 5 sq , ta sl no 4 1 1 6 emergency electric light with suitable cable type of 3 1 5 sq , ta sl no 4 1 1 7 junction box with 5 pole terminal strip for compass light , ta sl no 4 1 1 8 fastening material comprising of 4 bolts of brass m16 4 washers and 4 nuts with flange , ta sl no 4 1 1 9 1 lenses and mounting individually adjusted to an optimum value according to the length of thr reflection tube , ta sl no 4 1 1 9 2 reflection tube 140mm dia with flange one gasket , ta sl no 4 1 1 9 3 removable flange to seal the hole in the deck or ceiling from below , ta sl no 4 1 1 9 4 locking device for the telesc opic mirror head wheel house unit , ta sl no 4 1 1 9 5 wheelhouse unit with day and night mirror , ta sl no 4 1 1 10 six bar magnets 200 mm long 10 mm dia for b c correction , ta sl no 4 1 1 11 two full size d spheres of soft iron with marking fastening bolts m16 with washers and nuts of brass , ta sl no 4 1 1 12 one heeling magnet in tube with marked chain active length 175 mm one magnet 125mm one magnet 50 mrn long , ta sl no 4 1 1 13 reflector compass with compass card dia 180 mm with directional system , ta sl no 4 1 1 14 standard azimuth device with vanes and black hinged mirror , ta sl no 4 1 1 15 1 brackets of coated brass with fastening bolts nuts and washers , ta sl no 4 1 1 15 2 flinders tube brass , ta sl no 4 1 1 15 3 plastic cover for flinders tube , ta sl no 4 1 1 15 4 soft iron core 305 mm length , ta sl no 4 1 1 15 5 soft iron core 152 mm length , ta sl no 4 1 1 15 6 soft iron core 76 mm length , ta sl no 4 1 1 15 7 soft iron core 38 mm length , ta sl no 4 1 1 15 8 wooden core 280mm length , ta sl no 4 1 1 15 9 wooden core 140mm length , ta sl no 4 1 1 15 10 wooden core 70mm length , ta sl no 4 1 1 15 11 wooden core 35mm length , ta sl no 4 1 1 16 magnetic compass repeaters , ta sl no 4 1 1 17 junction box converter box other accessories including cables required for interfacing with ships degaussing system , ta sl no 4 1 1 18 nmea booster splitter convertors for transmission of heading information , ta sl no 4 1 1 19 interconnecting cables , ta sl no 4 1 1 20 interface resistor box attenuator for interfacing with rs degaussing system , ta sl no 4 1 1 21 proving of the interface between rs degaussing system and magnetic compass during hats and sats , ta sl no 4 1 6 on board spares , ta sl no 4 1 3 and 5 14 services of engineers and training , ta sl no 4 1 4 and 5 13 12 drawings and documentation

Central Government/Public Sector

CTN :42635730

27 Nov, 2025 NA

Bandikui - Rajasthan

Tender For supply of vernier calipers , beaker , screw guage , spherometer , watch glass for spherometer , simple pendulum apparatus , stop watch , helical spring apparatus , slooted weight , resonance tube apparatus , tunning fork , rubber pad , sonometer apparatus with slooted weight , newtons cooling law apparatus with metal block , laboratory thermometer , double inclined plane apparatus , capillary tube , bimetallic strip set , drawing board for physics lab , glass slab , glass prism , milliammeter 0to500 ma , millivoltmeter 0to500 mv , one way key , battery box 2 cell , rheostat 1 , nichrome wire , dcc wire connected wire , concave mirror , convex mirror , convex lens , concave lens , magnetic compass , bar magnet , horse shoe magnet , ammeter 0to5 a , voltmeter 0to5 v , galvanometer , screw driver , plier , digital multimeter

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