|Share this thread:|
Aug12-04, 03:18 AM
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.
|Register to reply|
|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|