How bright does my projector need to be?

john smith

I am looking for a new projector for my home to replace the previous one. My last was always hard to see during the day so I would like my next one to be bright enough so I can watch whenever I like including daytime. I know brightness for projectors is measured in lumen so I was just wondering how many would be needed to be able to watch in ambient light conditions.

Answer
This depends on so many factors that I can't see from here: How much ambient light? Where does it come from, relative to the screen location? How large is the screen? How much brightness do YOU find sufficient? How bright was your last projector?
Take the lumen output of your old projector, and multiply by how many times brighter you want your image.

Ambient Lighting for computers?

MrJediJunk

I have recently begun revamping my desk space when I remembered an article on Gizmodo from about a year ago, mentioning a set of USB connected ambient light projectors. I couldn't find the article. Is there anything out there like this that you can suggest?
All I got from that 'Ambient Light Projector' search was actual projectors, which I don't need lol what I am looking for is something simple to give my computer ambient lighting that matches whats onscreen. (Video games, movies, etc)

Answer
>Why don't you Google "ambient light projectors?" I did and it came up with lots of articles. I don't know anything about this topic but if you do some research on the net you probably will find something in all the articles I saw.

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backyard movie projector?

blondiie

How much do they cost, where can i buy or rent one, etc.. everything you know...

all answers get thumbs up

Answer
I've used for different projectors for my outdoor theater including an Epson S3, S4, InFocus IN74 and an Optoma HD70.

Depending on the ambient light in your area (I only have moon and starts with no streetlights) you will need at least 1200 Lumen and as high a contrast ratio as you can find. I get a lot of mine here.

www.tigerdirect.com

One will run from about $500 for 480p, 800 for 720p and $1800 for 1080p.

You will also need something for sound. Below is a great site for newbie outdoor movie enthusiasts, and feel free to email if you need help.

www.backyardtheater.com

weeder

Where do I find a Video Projector that works in a sun lighted room?

C R

I want to purchase a Video Projector that will allow me to watch TV, DVD in the daytime, as well in a dark room. Am I asking for something that is not possible?

Answer
The choice of projector isn't the problem. As others have said, projectors (or TVs) do not like glare from lights. What is happening is the light on the screen makes it impossible to get the contrast between the light and dark areas of the picture, washing out the picture.

There are a few ways to overcome this to various degrees.

1. But up blinds or curtains to achieve a dimmer room
2. Use a bright projector (>2000-2500 Lumens, although by itself this won't be an adequate solution)
3a Use a high gain screen.
3b Use a special screen that rejects ambient light and reflects "just" the intended image back to a "sweet spot" viewing position.

Option 3a works to some degree (not as well as 3b) because the high gain screen tends to reject off-axis light.

I've included three links (the 2nd link in particular explain the issues) to three products of the type described in option 3b. Note they can be expensive, and while results may be acceptable, even quite good for bright material (sunny outdoor material, vs dim interior shots), any such approach will be somewhat inferior to a light controlled HT environment.

Hope this helps.

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