Recessed lighting done badly, and Recessed lighting done well.

فهرست عناوین اصلی در این پاورپوینت

فهرست عناوین اصلی در این پاورپوینت

● Introduction to Outdoor Lighting
● Scope of Lesson
● Nighttime
● Define Nightscape
● History
● What is outdoor lighting now?
● Purpose of outdoor lighting
● What is light pollution?
● Outdoor Lighting
● Outdoor lighting should…
● Shielded Luminaires
● Importance of Shielding Light
● The Issues
● Unshielded Luminaires Waste Energy
● Non-shielded lights are unsafe
● Where did the student go?
● Negative Impact on Wildlife
● Negative Impact on Human Health
● Negative Impact on Astronomy
● Solutions
● Lamps
● Types of Lamps
● Incandescent
● Fluorescent
● High-Intensity Discharge
● HID continued
Low-Pressure Sodium
● Types of Luminaires
● Following six slides show shielded and unshielded outdoor lighting examples
● Recessed lighting done badly, and
Recessed lighting done well.
● Fully shielded lighting at an airport
● Unshielded lighting at an ATM
● A typical un-shielded mercury vapor luminaire
● How shielded lighting reduces glare
● Design & Measurements
● Designing a Lighting Audit
● More things to consider
● Power Density or Light Footprint
● Pole Mounting Height
● Thank You
● Let’s get to work!
● Activity One – Vocabulary
● Activity Two – Energy Audit
● Activity 3 – Measurements
● Activity Four – Master Plan
● More Plan Considerations

نوع زبان: انگلیسی حجم: 7.29 مگا بایت
نوع فایل: اسلاید پاورپوینت تعداد اسلایدها: 48 صفحه
سطح مطلب: نامشخص پسوند فایل: ppt
گروه موضوعی: زمان استخراج مطلب: 2019/05/17 01:53:00

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عبارات مهم استفاده شده در این مطلب

عبارات مهم استفاده شده در این مطلب

., sky, dark, ida, partnership, light, nsf, noao, awareness, iya, lighting, outdoor,

توجه: این مطلب در تاریخ 2019/05/17 01:53:00 به صورت خودکار از فضای وب آشکار توسط موتور جستجوی پاورپوینت جمع آوری شده است و در صورت اعلام عدم رضایت تهیه کننده ی آن، طبق قوانین سایت از روی وب گاه حذف خواهد شد. این مطلب از وب سایت زیر استخراج شده است و مسئولیت انتشار آن با منبع اصلی است.

http://darksky.org/wp-content/uploads/2014/09/Intro_to_Lighting.ppt

در صورتی که محتوای فایل ارائه شده با عنوان مطلب سازگار نبود یا مطلب مذکور خلاف قوانین کشور بود لطفا در بخش دیدگاه (در پایین صفحه) به ما اطلاع دهید تا بعد از بررسی در کوتاه ترین زمان نسبت به حدف با اصلاح آن اقدام نماییم. جهت جستجوی پاورپوینت های بیشتر بر روی اینجا کلیک کنید.

عبارات پرتکرار و مهم در این اسلاید عبارتند از: ., sky, dark, ida, partnership, light, nsf, noao, awareness, iya, lighting, outdoor,

مشاهده محتوای متنیِ این اسلاید ppt

مشاهده محتوای متنیِ این اسلاید ppt

introduction to outdoor lighting and how it affects light pollution ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness scope of lesson we will discuss the history of outdoor lighting its purpose types of lamps fundamentals of design why too much light at night is harmful activities to demonstrate good lighting. ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness nighttime ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness define nightscape for many centuries the nightscape was the moon and stars. during a full moon it would be relatively bright and during a new moon rather dark. for urban dwellers over the last ۱ years it has come to be described as lighting buildings streets and open spaces. could there be a compromise ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness during a full moon it would be relatively bright and during a new moon it is very dark. the picture on the top shows us what night used to be and the picture on the bottom shows us what some urban areas have become. history street lighting as we know it began approximately ۳ years ago. these were oil lamps placed on wooden poles by the early ۱۸th century oil lamps were still used but the poles and lamps were made of cast iron fixtures. the beginning of the ۱۹th saw gas lamps come into use. by the ۲ th century electric lamps were in wide use. ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness yes there has been a long history of lighting streets and homes at night. however for much of that time it was lighting that was much softer than today’s lighting. the term candlepower comes from this history. candlepower is a measure of luminous intensity of a light source in a specific direction measured in candelas. what is outdoor lighting now street lighting roadway lighting parks stadiums parking lots landscaping residential buildings pedestrian and bicycling pathways ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness this photo illustrates most of the types of lighting that we see everyday. both the good and the bad. which takes us to….. purpose of outdoor lighting provide a safe and secure environment at night. extend the use of parks and walkways into the night. to enhance historic notable features to enhance travel on the roads and at intersections. ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness all of these purposes show an excellent reason for having light at night but perhaps we could look at the design of these outdoor lights to determine if there is a better way to light. why is design important what is light pollution it is wasted light that performs no function or task such as sky glow glare it is artificial light that goes where it’s not supposed to go neighbor’s window into the sky ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness without proper lighting design you get light pollution. light pollution is one of those rare pollutions that actually costs less to solve than it does to continue as it is. let’s look at what lighting engineers should consider when they design a lighting scheme. outdoor lighting ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness outdoor lighting should… enhance visibility not impede it not produce glare be a part of the total nightscape not all of it not allow light trespass on other’s property have a master plan ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness glare is defined as excessive brightness from a source of light in the line of sight usually horizontal. trespass is light that goes where it was not intended to go wanted or needed. a master plan begins with an audit of your surroundings and what is the task that each light will take. outdoor lighting should… provide a safe and secure environment create safe routes for traffic cyclists and pedestrians facilitate the extended use of outdoor spaces ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness safety means that light is not glaring in your face does not cause blindness when you look at it. good lighting is shielded and points to the ground below. no light above the ۹ degree angle or the horizontal this is also know as full cut off. notice the light on the ball field above. see how it lights just the field and not the surrounding area. if you look closely you will see the lights from the window of a house at the ۱ o’clock position behind the field. no light trespass is annoying this homeowner. shielded luminaires ida in partnership with noao nsf and iya dark skies awareness ida in partnership with noao nsf and iya dark skies awareness importance of shielding light unshielded lights produce sky glow glare ida in partnership with noao nsf and …

کلمات کلیدی پرکاربرد در این اسلاید پاورپوینت: ., sky, dark, ida, partnership, light, nsf, noao, awareness, iya, lighting, outdoor,

این فایل پاورپوینت شامل 48 اسلاید و به زبان انگلیسی و حجم آن 7.29 مگا بایت است. نوع قالب فایل ppt بوده که با این لینک قابل دانلود است. این مطلب برگرفته از سایت زیر است و مسئولیت انتشار آن با منبع اصلی می باشد که در تاریخ 2019/05/17 01:53:00 استخراج شده است.

http://darksky.org/wp-content/uploads/2014/09/Intro_to_Lighting.ppt

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