When you sometimes read a newspaper, you can see some picture with raster lines. This lesson will teach you how to create that raster line, and how to apply it on any picture.
Step 1Open any RGB picture, or save my image below.

Step 2Press Ctrl+N on the keyboard (New Document). After that, set Width to 2 and Height to 6 px and press ok.

Step 3Zoom in (press and hold down Ctrl key and hit plus key on the keyboard) new document to see it better.
Step 4For Foreground color, set black (d), select the Pencil Tool (B), and paint the half of rectangle shape. See the picture below!
Step 5Choose Edit > Define Pattern. Then, name it which you like, and press ok.
Step 6Create a new layer.
Step 7After that, choose Edit > Fill, and then, set the options from the picture below.

Then, press Ok, to get this:
Step 8After that, in Layers Pallete, set Overlay Opactiy to 35%. See the picture below.

Finally, our work looks like this:

Bye!