Register to reply

Lens and sensor setup

by kdkdkd
Tags: lens, sensor, setup
Share this thread:
kdkdkd
#1
Aug12-04, 03:18 AM
P: 20
im in a slight fix.
i am presently using a light sensor. i was asked to use a lens along with it recently. is it because the obect i am going to sense is magnified by the lens so that sensor can detect it easily?

but, lets take the situation where a real image is formed because of the lens. Dont we need a screen in this case to project the image, for the sensor to view it? or is it that the sensor doesnt need a projected image.


lets imagine my sensor is a transmitter-detector led pair at an acute angle.
can a light sensor detect the converging(or diverging) rays from the lens, or do i require a proper projected image for sensing.

waiting for a reply.
Phys.Org News Partner Science news on Phys.org
Scientists develop 'electronic nose' for rapid detection of C. diff infection
Why plants in the office make us more productive
Tesla Motors dealing as states play factory poker

Register to reply

Related Discussions
Lens 1.0 - the decision of the problems on optical lens Programming & Computer Science 0
Focal length of concave lens using convex lens Introductory Physics Homework 3
Lab Setup question Chemistry 2
Gas Collecting Setup Chemistry 1
Lens and sensor setup Introductory Physics Homework 0