Lens Reflector
Todays deals on Lens Reflector?
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1000,Lens Reflector for Luxeon White Red Blue LED,L72B $565.00 |
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1000,Lens Reflector for Luxeon White Red Blue LED,L72B $565.00 |
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1000,Lens Reflector for Luxeon White Red Blue LED,L72B $565.00 |
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Wholesale 100 pcs 20W 30W 50W 100W led Lens Reflector Collimator 5-90° 59mm $408.00 |
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300, Lens Reflector for Luxeon White Red Blue LED,L72 $179.97 |
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300, Lens Reflector for Luxeon White Red Blue LED,L72 $179.97 |
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300, Lens Reflector for Luxeon White Red Blue LED,L72 $179.97 |
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100, Lens Reflector for Luxeon IR White Red Blue LED,72 $179.00 |
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High Power 150W LED Light + Lens Reflector + Driver $163.99 |
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50,50mm Flood led Glass Lens Reflector Collimator 2-90° $148.00 |
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50,50mm Flood led Glass Lens Reflector Collimator 2-90° $148.00 |
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50,50mm Flood led Glass Lens Reflector Collimator 2-90° $148.00 |
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50,50mm Flood led Glass Lens Reflector Collimator 2-90° $148.00 |
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50 pieces, 50mm x 19mm Flood led Glass Lens Reflector Collimator 2-90° $148.00 |
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50,50mm Flood led Glass Lens Reflector Collimator 2-90° $148.00 |
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50,50mm Flood led Glass Lens Reflector Collimator 2-90° $148.00 |
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150W White High Power LED Lamp + Waterproof Driver + Lens Reflector $138.99 |
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200, Lens Reflector for Luxeon White Red Blue LED,L72 $119.98 |
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200, Lens Reflector for Luxeon White Red Blue LED,L72 $119.98 |
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200x Lens Reflector for Luxeon White Red Blue LED,B72 $119.00 |
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200x Lens Reflector for Luxeon White Red Blue LED,B72 $119.00 |
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60x 10W-100W Led Lens Reflector Collimator 15-100° 43mm $118.00 |
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50x 10W-100W led Lens Reflector Collimator 30-130° 44mm $118.00 |
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60pcs, 10W-100W Led Lens Reflector Collimator 15-100° 43 x 14.3mm optical glass $118.00 |
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50x 10W-100W led Lens Reflector Collimator 30-130° 44mm $118.00 |
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10SET 20W 30W 50W 80W 100W 78mm Lens + 82mm Reflector Collimator Base Housing $108.00 |
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10,78mm High Power Flood led Light Lens Reflector 2-90° $99.00 |
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10,78mm High Power Flood led Light Lens Reflector 2-90° $99.00 |
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10,78mm High Power Flood led Light Lens Reflector 2-90° $99.00 |
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10,78mm High Power Flood led Light Lens Reflector 2-90° $99.00 |
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10,78mm High Power Flood led Light Lens Reflector 2-90° $99.00 |
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10,78mm High Power Flood led Light Lens Reflector 2-90° $99.00 |
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100W LED Light High Power + Lens Reflector + Driver $93.99 |
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Bright 100W LED Light + Lens Reflector + Driver Lens Diameter 77 mm $89.99 |
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Brand New Bright 100W LED Light + Lens Reflector + Driver High Power $89.99 |
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20set 10W 20W LED Lens Reflector Collimator 50mm + 50mm Base $78.00 |
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10SET 59mm Lens Reflector Collimator + Base for 20-100W LED new $78.00 |
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20set 10W -100W LED Lens Reflector Collimator + 50mm Base $78.00 |
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38, Lens Reflector for Luxeon IR White Red Blue LED,72 $73.00 |
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200PCS 15° 1W 3W 5W LED Lens Reflector Collimator NEW $69.99 |
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200PCS WHITE 15° 1W 3W 5W LED Lens Reflector Collimator NEW $69.99 |
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Laser Beam Expander Mount Holder & Mirror Lens Reflector Output Coupler Handle $65.00 |
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Promotion!!! 100W White High Power LED Lamp+ Driver + Lens Reflector $61.99 |
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Promotion!!! 100W Warm White High Power LED + Lens reflector+ Driver $61.99 |
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Laser Beam Expander Mount Holder & Mirror Lens Reflector Output Coupler Handle $61.60 |
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100, Lens Reflector for Luxeon White Red Blue LED,W72 s $59.99 |
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100, Lens Reflector for Luxeon White Red Blue LED,L72B $39.99 |
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100, Lens Reflector for Luxeon White Red Blue LED,L72 $39.99 |
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100x Lens Reflector for Luxeon White Blue LED,W72 $39.99 |
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100x Lens Reflector for Luxeon White Red Blue LED,B72 $59.99 |
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100x Lens Reflector for Luxeon White Red Blue LED,B72 $59.99 |
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100x Lens Reflector for Luxeon White Blue LED,W72 $59.99 |
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100, Lens Reflector for Luxeon White Red Blue LED,L72B $59.99 |
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100, Lens Reflector for Luxeon White Red Blue LED,L72 $59.99 |
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100x Lens Reflector for Luxeon White Red Blue LED,B72 $59.99 |
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100x Lens Reflector for Luxeon White Blue LED,W72 $59.99 |
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100, Lens Reflector for Luxeon White Red Blue LED,L72B s $59.99 |
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100, Lens Reflector for Luxeon White Red Blue LED,L72 $59.99 |
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100, Lens Reflector for Luxeon White Red Blue LED,B72 $59.99 |
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100,Lens Reflector for Luxeon White Red Blue LED,L72 s $59.99 |
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20 Lens Reflector for Luxeon IR White Red Blue LED,72 $59.96 |
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20 Lens Reflector for Luxeon IR White Red Blue LED,72 $59.96 |
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5X 78mm Lens + 82mm Reflector Collimator Base Housing 4 20W 30W 50W 80W 100W LED $58.00 |
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5SET 20W 30W 50W 80W 100W 78mm Lens + 82mm Reflector Collimator Base Housing $54.99 |
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50pcs Led Len Lens Reflector for White Red Blue LED,72 $49.50 |
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50pcs Led Len Lens Reflector for White Red Blue LED,72 $49.50 |
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50pcs Led Len Lens Reflector for White Red Blue LED,72 $49.50 |
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10SET 10W-100W Led Lens Reflector Collimator 15-100° 54mm +57mm Base $44.99 |
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50W Warm White High Power LED Lamp+ Driver + Lens Reflector $41.99 |
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50W White High Power LED Lamp+ Driver + Lens Reflector $41.99 |
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100,Lens Reflector for Luxeon White Red Blue LED,L72B $39.99 |
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100x Lens Reflector for Luxeon White Red Blue LED,B72 $39.99 |
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10set 10W 20W LED Lens Reflector Collimator 50mm + 50mm Base $39.99 |
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10set 10W LED Lens Reflector Collimator 50mm + 50mm Base $39.99 |
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10SET 10W-100W Led Lens Reflector Collimator 15-100° 43mm +57mm Base $39.99 |
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10set 10W -100W LED Lens Reflector Collimator + 50mm Base (screw mounting holes) $39.99 |
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10pc 10W -100W LED Lens Reflector Collimator + 50mm Base $39.99 |
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10pc 44mm Lens Reflector Collimator+50mm Base for 20W 30W 50W 80W 100W LED Lamp $37.99 |
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30pcs 1w 3w 5w High Power Led Lens Reflector Collimator 30° 36mm $23.99 |
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6pcs 10W-100W LED Lens Reflector Collimator + 50mm Base $23.99 |
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100x Lens Reflector for Luxeon White Red Blue LED,W72 $35.00 |
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50pcs 30° Lens Reflector Collimator for Cree P4 Q5 LED Light $24.99 |
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5SET 59mm Lens Reflector Collimator + Base for 20-100W LED new $34.99 |
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10,10W-100W led Glass Lens Reflector Collimator 19X44mm $33.88 |
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10pcs 10W 20W-100W LED Lens Reflector Collimator 4-90° $32.99 |
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10PCS 10W 20W-100W LED Lens Reflector Collimator 4-90° new $29.99 |
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10PCS 10W 20W-100W LED Lens Reflector Collimator 4-90° 50x22mm new $29.99 |
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50x Lens Reflector Collimator 36mm 15 degree 1w 3w LED $29.99 |
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50x Lens Reflector Collimator 36mm 30 degree 1w 3w LED $29.99 |
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10 Lens Reflector for Luxeon IR White Red Blue LED,72 $29.98 |
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10 Lens Reflector for Luxeon IR White Red Blue LED,72 $29.98 |
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10 Lens Reflector for Luxeon IR White Red Blue LED,72 $29.98 |
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Wholesale 10 x Lens Reflector Collimator 10W -100W LED + 50mm Base $27.99 |
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10 pcs 20W 30W 50W 100W led Lens Reflector Collimator 5-90° 59mm $27.99 |
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50mm Lens Reflector Collimator + Base for 20-100W LED $26.99 |
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50PCS 15° 1W 3W 5W LED Lens Reflector Collimator NEW $24.99 |
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50PCS WHITE 15° 1W 3W 5W LED Lens Reflector Collimator NEW $24.99 |
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5set 10W 20W LED Lens Reflector Collimator 50mm + 50mm Base $24.99 |
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4set 10W -100W LED Lens Reflector Collimator + 50mm Base $24.98 |
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4set 10W -100W LED Lens Reflector Collimator + 50mm Base (screw mounting holes) $23.99 |
Lens Reflector Questions
Basic Knowledge about telescopes
A telescope is to first attend a star party or an event or Join Astronomica where there are a few telescopes showcased. That will give you an idea of what a telescopes capabilities are and how binoculars compare with telescopes, or which is the best telescope to buy. In this article, we have tried to present some theoretical parameters that characterize a telescope, and a good understanding of these parameters will help you choose the right telescope for you.
There are quite a few important factors that determine the capabilities of a telescope:
Telescope Parameters
- Telescope type
- Aperture
- Focal Length
- Type of mount
- Motorization / Computer Control or GOTO
- Compatibility with standard eyepieces
- Cost
We shall now see how each parameter affects the capabilities of a telescope.
Telescope Type
There are many types of telescope which are classified as per the optics uesd. Telescope can be broadly classified as:
- Refracting telescopes or Refractors
- Reflecting telescopes or Reflectors
- Catadioptric telescopes
Refractors use lenses to create an image of the faint / distant object. Reflectors use mirrors to focus an image of the object. Catadioptric telescopes use a combination of mirrors and lenses to create an image.
What are the pros and cons of each type? We will discuss refracting and reflecting telescopes as they are popular.
Refracting Telescopes
Refractor Telescopes use lenses to have image of the Object. Combination of lenses gives you required mangnification (hyp). Refractors are usually expensive because a well-engineered combination of several lenses is required to create a good image. Creation of Lenses are expensive because it consumes time and also requires a lot of engineering.
Refractors suffer from a defect called “Chromatic Abbaration“. This defect can be minimised by using special techniques to manufacture lenses and this results in “Achromatic Lenses” which again makes it expensive. But to remove chromatic abbaration so that the image is more crisp , Other techniques are used to create more error free lenses. Thus, there are two types of popular refractors:
- Achromatic Refractors
- Apochromatic Refractors or ED Scopes
An achromatic refractor will gives you a quality image. Apochromatic lenses produce the most crisp images, and are ideal for photography of celestial objects. Apochromats are more expensive than Achromats.
Refractors are not preferred for visual observations because as the aperture increases the cost increases exponentially, so only small aperture telescopes are used for visual observation to view planetary objects and close by objects.
Pros:
- Very crisp image
- Are usually portable
- Ideal for astrophotography because the light gathered is more as compared to Reflectors.
Cons:
- Good apochromatic refractors are of huge cost.
- Small aperture Refractors can view only planets and bright celestial objects only.
- They are expensive
Reflecting Telescopes
Reflecting telescopes produce an image by using combination of mirrors.
- Newtonian reflector
Newtonian reflectors are the most popular for visual observing of distant celestial objects.
Newtonian Reflectors
This is the most popular design for visual observing. Newtonian reflectors have two mirrors – a “primary” concave (actually parabolic) mirror and a “secondary” flat mirror. The primary mirror gathers the light from the celestial object and focusses it. The secondary mirror only changes the direction of the light, so that it is suitable for viewing. Big Aperture Mirrors are economical as compared to big aperture Lenses and the cost reduces heavily. Newtonian reflectors are the most suitable for visual observing and can also be used for Photography.
Pros:
- They are cheaper
- They come in a large range of apertures, starting from small 3-inch apertures to more than 30-inch aperture.
- They are ideal for visual observing
- They can also be used for Astro Photography.
- Desired Magnifications can be obtained by using various focal lengths.
Cons:
- Image quality usually not as good as apochromatic reflectors
- Are usually designed to produce inverted images
- Collimation is not easy, which requires skill and technique to learn, but it is not that problametic, it can be learned easily. Various collimating tools are available to help in collimation.
Catadioptric Telescopes http://www.spacearcade.blogspot.com/
This design is usually preferred for astrophotography of small celestial objects. This design accomodates long focal lengths in a shorter tube length, making it less bulky. A favourite amongst astrophotographers.
To summarize:Schmidt Cassegrains are suitable when you want large magnifications, especially for photography.
Pros:
- Large magnifications with small sizes
- Ideal for photographing small objects.
Cons:
- Expensive than Reflectors
Aperture
The clear aperture of a telescope is the diameter of the objective lens or primary mirror specified in either inches or millimeters (mm). The larger the aperture, the more light it collects and the brighter (and better) the image will be. Greater detail and image clarity will be apparent as aperture increases. In astronomical telescopes as http://spacearcade.in/The light-gathering power is more important than magnification.
The light-gathering ability of a telescope varies as the square of the diameter of its aperture. Which means that a 8″ telescope is 4 times more powerful than a 4″ telescope, which in turn is 4 times more powerful than a 2″ telescope.
To summarize: Larger aperture helps you view objects more clearer by gathering more light from teh object.
Pros:
- Larger aperture show more detail
- Larger aperture increases contrast
- Larger aperture shows fainter objects, more distant galaxies
- Large aperture is ideal for deep-sky observing (seeing galaxies, nebulae, star clusters etc.)
Cons:
- Larger aperture costs more
- Larger aperture makes telescopes bulky
Focal Length
Focal length, usually measured in mm, refers to the focal length of the primary optical element (objective lens in refractors, primary mirror in reflectors). Larger focal length gives more magnification with the same eyepiece. Smaller focal length gives more field-of-view with the same eyepiece, but less magnification.
To observe planets in great detail, an objective with a long focal length and high optical quality is preferred. To observe deep-sky objects, an objective with a short focal length is preferred.
About the Author
My name is sarvesh kumar. i am working as business developer E. Marketing in space group. we having deal as branded products of astronomy like telescopes, binoculars and all accessories of photography. space is a hub of astronomy products in Delhi India.
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