 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • COPYRIGHT • NEWSLETTER   
|
field lens
A lens placed in or near the focal plane of a telescope to create an image of the primary mirror inside the instrument. In an eyepiece, it is the lens that receives the image from the objective and relays it on the eyelens (the lens nearest the eye).
Related categories
• OPTICS AND OPTICAL PHENOMENA• TELESCOPE EQUIPMENT AND TECHNIQUES
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History