hi jaundere
8755155
Acryplast
as for lexan polycarbonate mh-10
may be this will help u
where are u from mumbai ??/
i m from mira road --thane
can u give me some more details of the lcd
like response time
contrast ratio
colour
etc
and if u get new one please forwared me the details and
contact info of dealer
thanks and best of luck
8755155
Acryplast
as for lexan polycarbonate mh-10
may be this will help u
where are u from mumbai ??/
i m from mira road --thane
can u give me some more details of the lcd
like response time
contrast ratio
colour
etc
and if u get new one please forwared me the details and
contact info of dealer
thanks and best of luck
will let you know when i purchase LCD. i am from parel, and I work in bombay hospital.
i got the TV lens from US. my sis inlaw stays there. she ordered it. it was for 16 $. it can project the videos on mobile onto the wall albeit dim. but the brightness of mobile nokia 3110, was enough to form image at 3 ft, which was well recognisable.
if it works out , will be much cheaper and much ;less labour intensive.
name is delta 2 by US precision lens, cincinati
i got the TV lens from US. my sis inlaw stays there. she ordered it. it was for 16 $. it can project the videos on mobile onto the wall albeit dim. but the brightness of mobile nokia 3110, was enough to form image at 3 ft, which was well recognisable.
if it works out , will be much cheaper and much ;less labour intensive.
name is delta 2 by US precision lens, cincinati
hi javed
name of the dealer was Crystal. it is a small shop (tapri) opposite DB marg police station on lamington road. no tel no.
the contrast , colour i don't remember. i threw away everything when i found that no one could repair it.
name of the dealer was Crystal. it is a small shop (tapri) opposite DB marg police station on lamington road. no tel no.
the contrast , colour i don't remember. i threw away everything when i found that no one could repair it.
thanks Mr. umesh
i am planing to build a pj
using a CRT projector lens
but my problem is the lense
has very small focal length.
ie. the lcd must b very close to it
to get an image.
is there any way i can alter the focal length
of this lens by adding or removing any of the
len's element.
i am planing to build a pj
using a CRT projector lens
but my problem is the lense
has very small focal length.
ie. the lcd must b very close to it
to get an image.
is there any way i can alter the focal length
of this lens by adding or removing any of the
len's element.
reply
Yagender yaar you can buy triplets and reflectors from a shop in Malka Ganj.Triplet is for i guess 1500 or so.The reflector is for 500Rs.You can get in touch at umeshkumar09@rediffmail.com or umeshkumar09@gmail.com or umeshkumar09@hotmail.com for more.
To the rest of the people donot look for small lcds with lower than 800x600 resolution as the screendor would render the watching experience worthless.For a nice projection the resolution has to be 1024x768 or higher irrespective of the screensize generally.
Yagender yaar you can buy triplets and reflectors from a shop in Malka Ganj.Triplet is for i guess 1500 or so.The reflector is for 500Rs.You can get in touch at umeshkumar09@rediffmail.com or umeshkumar09@gmail.com or umeshkumar09@hotmail.com for more.
To the rest of the people donot look for small lcds with lower than 800x600 resolution as the screendor would render the watching experience worthless.For a nice projection the resolution has to be 1024x768 or higher irrespective of the screensize generally.
hi yogender
hi,
can you send me a snap of the CRT lens you are using? where did you get it? price?
hi,
can you send me a snap of the CRT lens you are using? where did you get it? price?
hi umeshkumar
my TV projection lens has a diameter( barrel dia) of 5 ". now if i want to use LCD larger than this , how do i do it? is there any way? do i need some condenser lens or a fresnel to be placed in front of the LCD? or just placing the LCD away from the lens can do the trick?
i really don't have th basic knowledge of the optics. please guide me.
my TV projection lens has a diameter( barrel dia) of 5 ". now if i want to use LCD larger than this , how do i do it? is there any way? do i need some condenser lens or a fresnel to be placed in front of the LCD? or just placing the LCD away from the lens can do the trick?
i really don't have th basic knowledge of the optics. please guide me.
Re: hi gitesh
electronic ballast will be light but it may cost much more. Check osram / philips websites. Also it is not that common in the maket.
What size LCD are you using? and size projection do you expect from it?
jaudere said:
electronic ballast will be light but it may cost much more. Check osram / philips websites. Also it is not that common in the maket.
What size LCD are you using? and size projection do you expect from it?
hi gitesh
with all respect to your advice to go for MH lamp, i still want to give it a try to auto bulbs. what i will lose is money. doesn't matter, but trying new things makes me happy(though the thing may not be very logical)
this time i am going slow. last time i did it in an unnecessary hurry. at present i am working on light source. just got a 350W SNPS(second hand , rs 150). running 35 W halogen for a trial. will escalate to 100w and then 200w if this goes okay.
this time i have a TV lens. i could project a snap on my mobile onto wall in dark room and was not bad if you consider cell phone illumination. could make out the face. so i think 100W should be good enough for a 6" LCD.
the objective of the TV lens has barrel dia of 5 " so i don't know how to use it for 6 or 7" LCD. will it be helpful if i keep a greater distance bet LCD and the lens?
good part of the lens is that it eats up very small amount of light as compared to fresnel and it is like fresnel and triplet combined in a single unit.
with all respect to your advice to go for MH lamp, i still want to give it a try to auto bulbs. what i will lose is money. doesn't matter, but trying new things makes me happy(though the thing may not be very logical)
this time i am going slow. last time i did it in an unnecessary hurry. at present i am working on light source. just got a 350W SNPS(second hand , rs 150). running 35 W halogen for a trial. will escalate to 100w and then 200w if this goes okay.
this time i have a TV lens. i could project a snap on my mobile onto wall in dark room and was not bad if you consider cell phone illumination. could make out the face. so i think 100W should be good enough for a 6" LCD.
the objective of the TV lens has barrel dia of 5 " so i don't know how to use it for 6 or 7" LCD. will it be helpful if i keep a greater distance bet LCD and the lens?
good part of the lens is that it eats up very small amount of light as compared to fresnel and it is like fresnel and triplet combined in a single unit.
to umesh
thanks Mr. umesh
is it the prince optics shop at malka ganz?
i was also planing to go there.
thanks Mr. umesh
is it the prince optics shop at malka ganz?
i was also planing to go there.
hi jauderi
the crt projector lens is use less
as it is having very small focal length it cant be used in a DIY projector, specially for big LCDs.
any ways i baught it from junck marcket , frankly telling u.
for Rs. 200 /-
the crt projector lens is use less
as it is having very small focal length it cant be used in a DIY projector, specially for big LCDs.
any ways i baught it from junck marcket , frankly telling u.
for Rs. 200 /-
diy projector
hi yogi,
Could you tell me in delhi where is junk market so i can try to get fresnel lens in low price. please give me address. and give me your email id so we can communicate well regarding this project.
thanks
harish😎
hi yogi,
Could you tell me in delhi where is junk market so i can try to get fresnel lens in low price. please give me address. and give me your email id so we can communicate well regarding this project.
thanks
harish😎
hi yogender
what is the focal length of the CRT lens? BTW how does it look like?
hve you seen any pj done with smaller LCD?
i projected my mobile on the wall with my lens. got a pic of about 1.5ft X 1 ft. quality was not bad. was dim. will try with a media player which has a video in.
i lost my links when my comp crashed but i had a nice project in it. it used 3" LCD and an LED light source. it was from switzerland.
what is the focal length of the CRT lens? BTW how does it look like?
hve you seen any pj done with smaller LCD?
i projected my mobile on the wall with my lens. got a pic of about 1.5ft X 1 ft. quality was not bad. was dim. will try with a media player which has a video in.
i lost my links when my comp crashed but i had a nice project in it. it used 3" LCD and an LED light source. it was from switzerland.
interesting
i am exerimenting with a motorcycle bulb with the help of a ATX 350w power supply. it has high beam 35W and low beam 35 watt.
the arrangement of the filaments is such that if both filaments can be lit up at same time ( which does not happen in bike), i get 70watt bulb. there are 2 filaments end to end. the one for dipper is covered on one side.
i am going to use philips diamondvision 100w/90w . so 2 bulbs combined give me 380 watts if i use all filaments simultaneusly.. should be good enough,
now probably i will need to use 2 SNPS s ( fibrilator is going to get mad) . got one second hand for rs 150. will get another in next week. so one bulb on each plus one will be used for 2 fans and the other one for running LCD.
i am exerimenting with a motorcycle bulb with the help of a ATX 350w power supply. it has high beam 35W and low beam 35 watt.
the arrangement of the filaments is such that if both filaments can be lit up at same time ( which does not happen in bike), i get 70watt bulb. there are 2 filaments end to end. the one for dipper is covered on one side.
i am going to use philips diamondvision 100w/90w . so 2 bulbs combined give me 380 watts if i use all filaments simultaneusly.. should be good enough,
now probably i will need to use 2 SNPS s ( fibrilator is going to get mad) . got one second hand for rs 150. will get another in next week. so one bulb on each plus one will be used for 2 fans and the other one for running LCD.
diy projector
hi umesh
how r u ? umesh please batana kaun sa monitor aap use kar rahe ho kitna inch ka hai aapka monitor or cost kitna hai monitor ka mujhe delhi main kahan se milega.
harish
hi umesh
how r u ? umesh please batana kaun sa monitor aap use kar rahe ho kitna inch ka hai aapka monitor or cost kitna hai monitor ka mujhe delhi main kahan se milega.
harish
to harish
My friend i used a BENQ 15" LCD.As of now it is available for Rs 7000 from any nearby computer hardware shop.It is really a breeze to open it up.
My friend i used a BENQ 15" LCD.As of now it is available for Rs 7000 from any nearby computer hardware shop.It is really a breeze to open it up.
Re: interesting
Hi Jaudere ,
I was only trying to help. there is no point in reinventing the wheel right? But if you really enjoy doing stuff in a different way go ahead, I know it is fun 🙂. I also do lot of cranky stuff. Using the 2 filaments in the bulb at the same time is a bad idea. The life of the bulb will be affected. Most halogen bulbs are designed in such a way that both filaments can be glowing at he same time for no more than 2 minutes with 10min interval for cooling if both filaments are glowing simultaneously for 2 minutes or more. ie the maximum permissible temperature of the bulb will be exceeded ,weakening the filaments or the glass capsule. Also one word of caution halogen bulbs will produce more heat compared to metal halide with both types having the same light output in lumens.
Regards,
Gitesh
jaudere said:
Hi Jaudere ,
I was only trying to help. there is no point in reinventing the wheel right? But if you really enjoy doing stuff in a different way go ahead, I know it is fun 🙂. I also do lot of cranky stuff. Using the 2 filaments in the bulb at the same time is a bad idea. The life of the bulb will be affected. Most halogen bulbs are designed in such a way that both filaments can be glowing at he same time for no more than 2 minutes with 10min interval for cooling if both filaments are glowing simultaneously for 2 minutes or more. ie the maximum permissible temperature of the bulb will be exceeded ,weakening the filaments or the glass capsule. Also one word of caution halogen bulbs will produce more heat compared to metal halide with both types having the same light output in lumens.
Regards,
Gitesh
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