Custom Adv 1
Pinhole Camera Innovation

Pinhole Camera Innovation Featured

Published in CEMASTEA News Written by  March 05 2015 font size decrease font size increase font size
Rate this item
(1 Vote)

CEMASTEA has variety of innovations and in this demonstration, a national trainer is explaining to students how a Pinhole camera operates.

A pinhole camera is a simple camera without a lens and with a single small aperture, a pinhole – effectively a light-proof box with a small hole in one side. Light from a scene passes through this single point and projects an inverted image on the opposite side of the box.

A pinhole has the ability to function like a glass lens because it excludes all light rays which are not reflecting off the subject that the camera is pointed at.  When light hits an object, it is scattered in all directions; this is why the object is visible from any angle.  If all this light was entering a camera and hitting the film, no image would be produced.  The light needed for a photo has to be aligned to make a focused image.  The pinhole excludes light rays from all irrelevant angles and only allows through rays which are almost perfectly aligned from the subject through the pinhole to the film. 

 

For example the above image show a clear explanation on how the inversion occurs. The yellow lines are light rays.  Note that they cross at the pinhole and produce an inverted image. In our case, the arrow will be viewed as inverted, that is, arrow facing up.

Read 4306 times Last modified on Last modified on March 05 2015

More in this category: Welcome to CEMASTEA »
Login to post comments

Quality Policy Statement

The Centre for Mathematics, Science and Technology Education in Africa is committed to providing training to curriculum implementers and conducting educational research in a timely, efficient and effective manner

The Centre is committed to satisfying customer, organizational, legal and ISO 9001:2015 requirements and to the continual improvement of its quality management system.

Advertisements

Announcements

SCHEDULED SYSTEM MAINTENANCE ON CEMASTEA’s E-LEARNING PORTAL

CEMASTEA Newsletter

The CEMASTEA Info Newsletter Issue 015 is Out!!! With very interesting articles on Maker Space. Download a copy and read more. Enjoy the read!

JOMSTE

Journal of Mathematics, Science and Technology Education (JOMSTE)! Are you looking for a journal to publish your work? Click here for more information and Guidelines for Authors.

CEMASTEA’s Practitioner Journal of Mathematics and Science Teachers

CEMASTEA has established a Practitioner Journal of Mathematics and Science Teachers (PJM&ST). Click here to access the journal. The journal is also accessible on CEMASTEA Content Repository using the link: https://repository.cemastea.ac.ke/course/view.php?id=41 and on the Online Journal System using the link: https://ojs.cemastea.ac.ke/

Connect To Us

Please like and subscribe to our new YouTube channel ...

Our Location

Centre for Mathematics, Science & Technology
Education in Africa (CEMASTEA)
P.O.Box 24214-00502
Karen,Nairobi
Karen Road-Bogani Road  Junction
Tel: 020-2044406 ,+254 706 722697/+254 780 797648
Email: director@cemastea.ac.ke

Our Partners

        

DMC Firewall is developed by Dean Marshall Consultancy Ltd