hello power_in,
myself gaurav a newbie to this amazing place.
can u plz let me know how long the resulting projected image would be at what distance ..??
thanka
waiting for your reply
hello frnds... i am from gujarat. i m trying to make projector from last 6 years. I tried hard to find the triplet lens in gujarat but i couldnt. Can anybody tell me the location to buy it online from india? thanks guys... see ya
Dear Umesh,
Hai this is madesh, which part Of bangalore you are from.
How successfully your projector is, Please do give me details about it.
Please do reply.
Regards
madesh
Hai this is madesh, which part Of bangalore you are from.
How successfully your projector is, Please do give me details about it.
Please do reply.
Regards
madesh
Friend Madesh
I am from Ghaziabad .I am not from Banglore.I made the PJ long time back.But I deassembled evrything back as the size turned out to be rather large.I have been on the lookout from smaller XGA LCD and that for cheap.
I am from Ghaziabad .I am not from Banglore.I made the PJ long time back.But I deassembled evrything back as the size turned out to be rather large.I have been on the lookout from smaller XGA LCD and that for cheap.
Hai Umesh,
Thanks for your reply, Actually I'm Also Looking For Something Smaller in size but We cannot achieve this unless we have the right triplet lens/Fresnel And The right Focal Lenght For That Size Of The LCD.
I have seen Many Forums Regarding Lcd Projectors, All Tom,Dick & Harries Post Their Projects & Stories How They Achieved, Finally ending Up With A Big Box Like A Idiot Box HAAHaHa.....,.
But today In The Market There Are Pocket Size/Mobile Size Projectors available.
Whatever it is I'm also Looking For some small Projector Module & the Spec., Raw Material availability Within India Or Bangalore.
Let Me Know If Anybody is succeeding with smaller lcd at least 7" Lcd.
Regards & ThankYou
Madesh
Thanks for your reply, Actually I'm Also Looking For Something Smaller in size but We cannot achieve this unless we have the right triplet lens/Fresnel And The right Focal Lenght For That Size Of The LCD.
I have seen Many Forums Regarding Lcd Projectors, All Tom,Dick & Harries Post Their Projects & Stories How They Achieved, Finally ending Up With A Big Box Like A Idiot Box HAAHaHa.....,.
But today In The Market There Are Pocket Size/Mobile Size Projectors available.
Whatever it is I'm also Looking For some small Projector Module & the Spec., Raw Material availability Within India Or Bangalore.
Let Me Know If Anybody is succeeding with smaller lcd at least 7" Lcd.
Regards & ThankYou
Madesh
For Sale : Full DIY PJ parts w/ LumenLab DIY kit
Hi all,
I am planning to sell my LumenLab DIY PJ kit since I had gone for a commercial PJ (I cannot keep/hang the box in the living room because of the aesthetics). I had not even used it more than 25hrs. Just made it and used for a couple of days for the DIY pleasure and dismantled it because of the size. Following are the items available:
- S15 LumenLab kit (2 x Fresnels, 1 x Triplet Lens), all w/o any scratch.
- Osram 400w HID lamp w/ ballast
- 15" 720p Benq panel (stripped, no FFD issues)
PM me for details.
Location : Bangalore
Hi all,
I am planning to sell my LumenLab DIY PJ kit since I had gone for a commercial PJ (I cannot keep/hang the box in the living room because of the aesthetics). I had not even used it more than 25hrs. Just made it and used for a couple of days for the DIY pleasure and dismantled it because of the size. Following are the items available:
- S15 LumenLab kit (2 x Fresnels, 1 x Triplet Lens), all w/o any scratch.
- Osram 400w HID lamp w/ ballast
- 15" 720p Benq panel (stripped, no FFD issues)
PM me for details.
Location : Bangalore
finally at last
hey guys,
been a long time i was away from the scene ,but now i am back. a lot of things might have happened here since my last visit.
finally the days of despair are getting over , and i am now getting ready to make my own pj😀 .
but i have some questions for which i would like some answers from the seniors-:
1. i am trying to use high power leds instead of metal halide lamp.
i want to know what lumens am i supposed to go for or what are the
lumens of an 250 watts metal halide lamp.the dealer has asked me to get
the temperature and lumens
2. what is the optimum light temperature i should go for.
3. i have inquired for fresnel and triplets from lensel optics pune. but
are there any better options availabe in india. i have non idea of
importing things.
4. i will be going for a folded design like budhi's . so when light is reflected from a mirror how do we calculate what shd be the distance between lcd and mirror and lamp and mirror . because the fresnal has got its fl and we suppose the centre of lamp arc should be at fl of fresnal.
5. i want to get a projection of more than 96" fdiagnolly from a distance of 6 ft. will the triplet from lensel dia 74 mm fl 315 mm be enough or do i go for some other lens please suggest.
6. please answer fast as i am too desterate to start with this
hey guys,
been a long time i was away from the scene ,but now i am back. a lot of things might have happened here since my last visit.
finally the days of despair are getting over , and i am now getting ready to make my own pj😀 .
but i have some questions for which i would like some answers from the seniors-:
1. i am trying to use high power leds instead of metal halide lamp.
i want to know what lumens am i supposed to go for or what are the
lumens of an 250 watts metal halide lamp.the dealer has asked me to get
the temperature and lumens
2. what is the optimum light temperature i should go for.
3. i have inquired for fresnel and triplets from lensel optics pune. but
are there any better options availabe in india. i have non idea of
importing things.
4. i will be going for a folded design like budhi's . so when light is reflected from a mirror how do we calculate what shd be the distance between lcd and mirror and lamp and mirror . because the fresnal has got its fl and we suppose the centre of lamp arc should be at fl of fresnal.
5. i want to get a projection of more than 96" fdiagnolly from a distance of 6 ft. will the triplet from lensel dia 74 mm fl 315 mm be enough or do i go for some other lens please suggest.
6. please answer fast as i am too desterate to start with this
try posting this at diyprojectorkits.com, there are some guys there that could help you with your questions as well
Hi Viki,
I guess all the questions are answered in the previous posts. Please take the effort go through them. regarding metal halide lamp read my earlier posts there is a data sheet in one of them.
I guess all the questions are answered in the previous posts. Please take the effort go through them. regarding metal halide lamp read my earlier posts there is a data sheet in one of them.
Hi Viki,
I am also building an HD PJ with LED
From where u are getting the power LED's
The light temp should be b/w 4500K and 6500K. and color rendering(CRI) above 80
I am also building an HD PJ with LED
From where u are getting the power LED's
The light temp should be b/w 4500K and 6500K. and color rendering(CRI) above 80
buying led
buying led is proving a costly affair.
i am purchasing led's from lamington rd,
they have got very superb led's.
the one which asked was 30 watt led with effective 80 lumens per watt.it needs a heat sink for cooling.
so i am thinking of purchasing 2 sets of 20 watts each.10 watt set is not available right now ,will take 10 days.
if you want i can arrange leds for you ,when i go to purchase for me.
buying led is proving a costly affair.
i am purchasing led's from lamington rd,
they have got very superb led's.
the one which asked was 30 watt led with effective 80 lumens per watt.it needs a heat sink for cooling.
so i am thinking of purchasing 2 sets of 20 watts each.10 watt set is not available right now ,will take 10 days.
if you want i can arrange leds for you ,when i go to purchase for me.
I already got LED from 2 sources 🙂.
LED u purchased has squar shape with Yellow head ? (they are too bright 🙂)
did u also purchased LED driver from them only?
what LCD you are using?
LED u purchased has squar shape with Yellow head ? (they are too bright 🙂)
did u also purchased LED driver from them only?
what LCD you are using?
though those led's are bright ,thgey are very good try them out in a dark room.
i purchased super brand 9.2" lcd from lamington rd,res 800*600, with built in tv tuner, regular video input, VGA input for connecting pc and remote control.
guys i have landed in big trouble.so please help
whats the quality difference between triplets from allied optics banglopre and lensel optics pune. which one is more better. lensel from pune have stopped production of triplets.
is there any other location in bombay where triplets would be available.
pleaseeeeee help
i purchased super brand 9.2" lcd from lamington rd,res 800*600, with built in tv tuner, regular video input, VGA input for connecting pc and remote control.
guys i have landed in big trouble.so please help
whats the quality difference between triplets from allied optics banglopre and lensel optics pune. which one is more better. lensel from pune have stopped production of triplets.
is there any other location in bombay where triplets would be available.
pleaseeeeee help
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