Optics Hickenbotham Flashcards Preview

Block 3 Optics > Optics Hickenbotham > Flashcards

Flashcards in Optics Hickenbotham Deck (14)
Loading flashcards...
1
Q

The ray from an object that is incident on the system pointing towards the center of the entrance pupil.

A

Chief Ray

2
Q

The ray that just passes the edge of the aperture stop.

A

Marginal ray

3
Q

Physical entity most effective at limiting the field of view…

A

Field stop

4
Q

What limits the light…

A

Aperture stop

5
Q

What is the plateau area that holds the same amount of light?

A

Field of uniform illumination

6
Q

field of at least one half illumination is also the:

A

Field of view

7
Q

What lines make the full illumination?

A

Top of Field stop to top of aperture stop and chief ray

8
Q

What lines make the field of view? (field of at least one half illumination)

A

Top of field stop to center of aperture stop and chief ray

9
Q

Total field of view uses what lines?

A

Top of field stop to bottom of the aperture stop and chief ray

10
Q

What is eye relief?

A

Distance from where you are putting your own entrance pupil… so the exit pupil of the system lines up on your cornea

11
Q

The distance from the last surface of an eyepiece at which the user’s eye can obtain the full viewing angle.

A

Eye relief

12
Q

IF the viewer is outside of the distance a _________ field of view will be seen.

A

reduced

13
Q

True/False: Generally the higher the magnification and the larger the intended field of view, the longer the eye relief.

A

False, Shorter the eye relief

14
Q

What is a Fall off in illumination for points away from the optical axis. (Fading on the outside edges of a picture)
Farther away from optical axis the more the eye drops off…

A

Vignetting