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hotus · 2 years

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HOTUS Smart Projector - How Bright Should the Projector Be When Buying?

　　It is increasingly common to believe that any smart projector can be used for any type of viewing in any room. but it is not the truth.

　　First, understand that the brightness of the projector is not the brightness of the screen. That said, you typically won't get 3000 lumens of usable lumens from a 3000-lumen projector that has the image quality you need for a dimly lit home theater. In most cases, almost all projectors are actually rated at about half the brightness when tuned to optimal video quality. There are exceptions to this rule, but dividing the rated brightness by 50% is always a good rule to get close to estimating the real-world brightness you should expect.

　　But in terms of screen size, what effect can a 3,000-lumen projector produce with 1,500 lumens?

　　The calculations to determine the necessary lumens in dim light situations are actually not that complicated.

　　For home projectors used in dimly lit situations, 13-18 lumens per square foot is recommended. Some people like a better visual experience impact, then 20-25 lumens is enough.

　　So you can see that even in a fairly dim environment the projector can provide a 100-inch diagonal image that is punchy and bright enough.

　　The problem is, once you start adding light to the dimly lit environment, things change dramatically. The projector cannot project black. This is the most important thing to understand. So if a white wall is lit by a light in a dim environment, it will be "black" and the projector needs to get much brighter than that wall to make it appear black.

　　That means 18 lumens in a dimly lit environment providing a 1,000:1 contrast ratio, and now 60 lumens in a bright room to give you a 50:1 contrast ratio (or lower).

　　So your 100" diagonal image now needs over 1600 lumens to use, it won't give you a great image, but a usable image. A 120-inch diagonal image will require nearly 2,600 lumens. A 150-inch screen requires over 4,000 lumens.

　　Not advertised lumens...real world, calibrated, color corrected, ANSI lumens. Controlling the light in your home theater can take full advantage of the projector's brightness, while introducing any type of light requires the projector to provide more brightness.

　　That's why controlling the light in a room is something anyone can do, most importantly making the projector's projection look its best. Contrast can be increased and the brightness of the room can be decreased to make the projector effect look its absolute best. In addition, a brighter laser projector or a projection screen with gain effect can also be purchased.

#Smart Projector

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formosusiniquis · 1 year

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In a turn of events surprising exactly no one among the group, it's Dustin's who starts the whole thing. He calls a formal party meeting, and an hour after the message goes out over the walkie Steve has a living room full of anxious freshman and Eddie Munson -- and him and Robin who are mostly there because the meeting had to be held at Steve's house for some reason.

Dustin's sense of dramatics have come to rival Eddie's, and he waits until they're all seated before he even bothers coming out from where he hid himself with a manilla folder under one arm and the only white sheet in Steve's house, that had definitely come from off of his parent's bed, under the other. He doesn't say a word as he throws the sheet over the entertainment center and comes back again wheeling in an overhead projector. Steve can still faintly make out O'Donnell written on the side. "I'm sure you're wondering why I've gathered you all here today," Dustin punctuated his sentence with the heavy click of the projector being switched on.

The fan doesn't drown out the screaming from the crowd.

"You made it sound like an emergency."

"How did you get that here?"

"How did you get it at all?"

"Please," Dustin interrupts, "save all questions for the end." From his manilla folder he slaps a pre-written laminate down on the light table. Projecting, enlarged for everyone to see, 'Why Lucien is secretly the big bad of the whole campaign: a presentation by Dustin Henderson."

"This is the lamest reason for petty theft ever." Eddie gripes. Clearly more upset than Henderson had actually figured the plot twist out, Steve remembers how proud of himself he'd been when he talked himself through it weeks ago.

"Did you help him do this?" Steve asks, afraid of the answer.

"Obviously not, why would I spoil my own-"

"The projector, Eddie."

"I mean barely, I was more of a getaway driver. Really, if she wanted to keep her projector she shouldn't have moved it out into the hallway so they could wax the floors. I didn't know he was going to use it for evil."

Henderson clears his throat, a disgusting phlegmy hem-hem, "If you're going to talk through the presentation, you'll be asked to leave."

The attitude on the kid, really.

It becomes a thing after that. Steve already has the projector, it's not like he can bring it back to the highschool. What would he even say, 'Sorry about the confusion, my overhead projector looks just like this one.' When there's nothing good at Family Video to rent or it's raining too hard to use the pool, they'll all go to different corners of the house with a stack of ten laminate sheets, a wet erase marker, and a vague theme. Then they come back and share what they've come up with.

The group is incapable of not instigating some kind of competition, at the end of the night they'd fight and argue over whose presentation was best. Steve participated half the time, but more often than not let himself be talked into playing referee to make sure no one's feelings got too hurt. On those nights he'd add onto Robin's. His favorite: why star trek is better than star wars (with footnotes from Steve)

It's at least twice as gay, kirk and spock are basically alien married and uhura definitely had a thing for spock's wife. All star wars has is the robots and they're barely main characters.

Steve note: Spock's half-vulcan status can be looked at the same as being bi or genderqueer, not feeling like you belong right in either half of your identity cause you aren't enough of one or the other -- Luke is just a twink with a nice wardrobe.

The Party could argue about anything, but Steve wasn't exactly surprised when the young adults got in on the fun too. The projector didn't usually come out until they were all drunk or stoned enough to admit that they had been waiting all night to make their presentations. Unlike the kids who mostly treat the games like debate team: who's the most powerful fictional character, what's the best PC class, what character from star wars would survive the Upside Down (he thought Erica's presentation: why the my little ponies could take down tiamat but wouldn't because they're too civilized, was especially inspired). The older teens treated it more like an amped up game of truth or dare, making up things that someone else in the group should have to do and encouraging the rest of the group to join in too.

They started the night off with Argyle's "Why Steve should give me his secret brownie recipe" which turned out to be mostly about how good they would taste as weed brownies and Eddie and Jon were quick to join his side.

They go around like that advocating for bad decisions like consequences don't exist, like they could be kids again. Robin thinks they should get tattoos, Steve is easily swayed. Jon proposes a road trip back to California. Nancy says they should all move to Boston with her. Eddie thinks the core four should start a band. Steve waits for his turn.

Steve has had his pages written and waiting for days. He knows exactly how long it takes his friends every time they meet to get wasted enough to give in to the temptation to wheel out his contraband projector. Once Robin is finished shouting at Eddie about how they're the only ones with any musical gifts he takes his turn.

"Why Eddie Munson should go out with me: a presentation by Steve Harrington."

#steddie #at the end but it was the foundation on which the rest of this was built #stranger things #stranger things fic #my fic #i saw a picture of one of the old overhead projectors and had a visceral flashback to my school years #they were being phased out but my 8th grade math teacher insisted on keeping his til he retired #honestly superior to the smart board #core memory drawing on the one in my moms classroom as a kid #hands stained by wet erase expo markers #anyway if theres a will theres a way and the party would eat up those ppt presentation nights

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avedoodles · 1 month

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tinkering

#hear me out... buster being tech smart #not in the digital sense but the machinery sense #i think he would be able to fully deconstruct and reconstruct a film projector #and customise it however he wanted #he can also repair any broken projector you give to him regardless of whats wrong with it #he taught himself the inner mechanics of a film projector by simply taking one apart and figuring out what each individual part did #like a puzzle :]#and since he was never taught the formal names of all the bits inside #he made up goofy nicknames for them instead based on what they do #brawl stars #brawl stars buster #brawl stars fanart #brawl stars art

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meimi-haneoka · 2 months

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Cosmos - Akiho/Kaito one-shot

Once upon a time, when chapter 48 had definitively broken the cage to my admiration and support for the YunaAki pairing, I couldn't help but start imagining their future together.

And one of the first headcanons that came up to me was this one. Not in depth like you can see developed here, but the setting was definitely this one. An intimacy that didn't require for them to necessarily "jump on eachother". And for personal reasons, I needed to reclaim this headcanon so badly, write it down and release it to the world. Just because of that, I can already feel like this little thing spilled here will be one of my favorite writings.

I'm pretty sure this one, at more than 1600 words, is categorized as a fully fledged fic, right?

Now, this is another quite romantic one, but I managed to sneak in a tiny bit of delicious angst towards the end, just cause it's so much their element and I can't stand over-sugary stuff myself. I can't believe I also made actual research for this one. Get ready for some cosmic magic under the cut ✨

Genre: fluff, romance, a sprinkle of angst. Akiho is 17 years old. They haven't found a cure for Kaito yet, but! She has disclosed her true name to him. Snippet: "Akiho-san...do you know the origin of your name?" "...My name?" "Your true one."

All the curtains were closed tightly. The spacious living room was completely immersed in the darkness, except for a couple of scented candles on the ground, faintly illuminating the floor. Any hindrance out of the way. A generous number of soft cushions of all sizes was arranged on the floor, on top of a large camping mattress, right between the two candles.

Akiho threw herself enthusiastically on the pile of cushions, while Kaito lay down in a slower motion.

"....Ready?" Kaito whispered with a soft smile, while the girl next to him nodded excitedly, azure eyes shining in the dark.

One press on a button of the remote controller, and the whole ceiling turned into a sparkling planetarium.

Akiho gasped. "Oh my god....this is amazing!" She instinctively brought her hands to her face, covering partly her mouth while her voice was choking with emotion, a quirk that even at 17 years old she couldn't drop yet.

The starry vault rotated slowly, while some stars twinkled, giving a quite realistic effect to the scenery. Every now and then, a shooting star would appear randomly, inviting to make a wish.

Kaito looked to the side to check the reaction of the girl, pleased with himself. The star projector had been his present for Akiho's 17th birthday, but between study, book repairs and moving out to another country, they hadn't found a moment of quiet to put it in function. That perfect moment finally came this evening of December.

Of course he bought the most expensive model out there, and this one could even add sound effects to the experience, which he had set on sea waves through the remote control. The idea was "we're lying down on a deserted beach at night, in the early summer", instead of the chilling winter they were actually in.

"Kaito-san..." - Akiho moved her finger up in the air, "what constellation is that one?"

He had vaguely studied astronomy as part of his magic education, but he had forgotten a lot of it...for a moment he was tempted to use a magic spell, but then decided against it, not wanting to irritate the girl beside him. She always reprimanded him whenever he lazily tried to use his magic for the most mundane things. They hadn't found a cure for him yet, so she wanted him to keep the use of magic at the minimum, to avoid affecting his health. Therefore, he pulled himself up and went next to the star projector, changing the little disc with a different one.

The projection changed to a similar starry vault complete with the constellations map, and plopping down next to her, he said with a smile "Akiho-san, that seems to be Virgo!".

"Really?! That's my zodiac sign!!" Her brows furrowed for a moment, then "Indeed, with a bit of imagination that could look like a maiden...without a head". Kaito chuckled. "Wait, where's Pisces?"

Kaito checked the constellation map on his phone (which he had downloaded precisely for this occasion), and after a moment he indicated it, pointing his finger towards the ceiling. "Over there."

"....That one?! Oh....that looks more like a flower with two stems than actually two fishes, doesn't it?" she blurted out, laughing playfully.

"...Akiho-san..." Kaito couldn't help but chuckle again, reveling in the cheerfulness of his beloved. Nothing could send tingles to his heart like the sound of her laughter.

"Akiho-san...do you know the origin of your name?" "...My name?" "Your true one."

Akiho stared at him with curiosity, cheeks tinted slightly with a pink hue. The topic of their true names was usually off-limits. They didn't make a rule for it, but being both very well acquainted with the customs of the magic world, the unspoken agreement was to never bring them up...unless it was something serious.

"I was named after a flower, right?"

"Of course...but do you know why cosmos flowers were named that way?"

The girl stared at him, thinking for a moment about the question. She realized she never actually thought about why cosmos flowers bore that name. So, she shook her head slightly.

"Back in the 17th century, Spanish priests found the flowers in Mexico and cultivated them in their mission gardens."

He looked away from her, turning his gaze towards the starry sky.

"Originally, Kosmos is a Greek word that means 'order' or 'harmonious arrangement'. The priests were fascinated by those flowers' orderly arranged petals, they found them...." He paused.

"...Breathtakingly beautiful. And perfect." His eyes were now twinkling, still fixed on the firmament over their heads. "Just like the universe, the cosmos. So, they named those flowers after it."

Akiho's heartbeat quickened, and if she knew the man next to her well enough, his heart was doing just the same. They had spent enough time together for her to understand all too well what he was trying to say.

Kaito felt Akiho's hand searching for his, and they intertwined them silently.

"Thank you...I didn't know all of that. I've always thought that cosmos flowers were pretty, yes, but not particularly remarkable or unique... It is nice to know that the right people could see the true beauty and worth in them."

As if replying to her, she felt him squeezing her hand.

After a moment of silence, Akiho's right index finger moved up in the air once again. "Wait, what about that one? What is its name? It's big, but the stars don't look particularly bright"

"Hmm...Aquarius, apparently. This one would be basically impossible to see by naked eye, from an urban area."

Akiho made a face once again. "The water-bearer, hmmm... I can see his legs but...these constellations all seem to be missing their heads!", she blurted out, feigning annoyance.

Kaito couldn't hold it in, and burst out laughing, causing her to do the same.

Yes, she was just perfect the way she was.

☆゜・。。・゜゜・。。・゜★

Kaito groggily opened his eyes in the dim light of the candles, ceiling still covered with stars. The clock of the living room showed it was 2 am.

Clinging onto his right arm, Akiho was soundly asleep next to him. Consciousness rapidly washed over him, remembering what happened.

Akiho's exploration of the starry vault had gone on for more than an hour, but at some point her remarks and answers had become more and more absentminded, till he realized she had actually fallen asleep. Smiling tenderly at her slumbering form, he was ready to pull himself up to go pick up a blanket for her, and eventually arrange some cushions for himself farther away from the camping mattress (he didn't want to wake her up, but didn't want to leave her sleeping alone in the living room either), but he had quickly realized with dismay that she had turned on the side and literally latched onto his right arm.

He had frozen right there and then. He didn't want to wake her up, but he had started to overthink as usual - this is not appropriate, we shouldn't sleep together, what if-- The result was that the stress made him incredibly sleepy, and after a few minutes of ruminations, Morpheus had taken a hold of him too.

Now that he was fully awake, he mentally scolded himself for falling asleep, and proceeded to do what he didn't have the heart to do before: slowly, slowly, he tried to disentangle his arm from Akiho's grip. When he managed to slip away, he rose to go pick that blanket up, because he couldn't risk for Akiho to catch a cold due to his imprudence.

"Where are you going?"

Her tone made him stop in his tracks immediately. Turning around, what he saw made his heart drop.

Akiho was propped on her elbow, staring in his direction but not quite focused on him. She was clearly still half asleep, but what ripped Kaito's heart apart was her expression, halfway between a scowl and wanting to break into tears.

It didn't take him long to understand why she had that expression. Even after 4 years, the trauma he had caused to her resurfaced sometimes in her dreams, upsetting her when she woke up.

"I'm just going to get a blanket.....I'm not going anywhere." he answered, while painfully making sure to emphasize the last part.

Akiho blinked her eyes twice, awareness coming back to her. Her expression slowly turned into one of realization, then she looked briefly to her side, panicking. "Oh my god, I'm sorry...I didn't fall asleep on you, did I? ...I didn't want to bother you-"

"You've never bothered me once, Akiho-san."

The girl stared at him, misty-eyed. His expression was kind, but tinged with guilt. His figure against the starry ceiling reminded her of that fateful night, when he fought his stubborness and the monsters inside his head to go back to her.

The girl casted her eyes down and to the side, pink hue emerging on her cheeks once again. "Then...once you took that blanket...could you...could you get back here next to me?" she said softly, finding the courage to look up once again.

Kaito had already understood long time ago that he was done for. He knew that no matter how much he tried, he would've never been able to refuse anything to those blue eyes of hers. Especially if he wanted it himself, in the first place.

They stared at eachother for a moment, before Kaito breathed out the air he was unwittingly holding and said with a smile "I'd be happy to, Akiho-san."

Akiho beamed at him, sure more than ever that there wasn't any place on this Earth or in the entire cosmos where she could've felt safer, other than next to him.

#akiho shinomoto #yuna d. kaito #yunaaki #akiyuna #kaito x akiho #cosmos & crystals #spilled words #ccsakura #clear card arc #future fic #alright you need a LOT of imagination to recognize what the constellations are named after #lmao #I stand with Akiho #now if you excuse me I'll go buy a star projector #kaito is the usual smart guy unable to spell clearly his feelings #but compared to before we've grown a lot here #also a tiiiiiiiny bit of angst #what's their relationship status?#eeeeh kinda unclear they do lots of stuff couples do but they're not official yet

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