# Using for loop in tikz to draw repeated shapes

I am trying to create a lenticular pattern like the one in the picture. I believe the repeated shape can be drawn using a for loop in tikz, but I wasn't able to get it done properly.

Appreciate any help on looping.

Edit: This is a part of a bigger diagram and below is the code.

\begin{document}
\begin{tikzpicture}[>={Stealth[inset=0pt,length=10pt,angle'=35,round]}]

\pgfmathsetmacro{\lensHeight}{3}

\draw []  (0,\lensHeight)
arc[start angle=180-\startAngle,delta
[1em]Main\\[-1ex]lens}
-- cycle;

\draw [line width=1mm ] (-1.5,3) -- (-1.5,-3) node [below, align=center] {\\
[1em]Weak\\[-1ex]diffuser};

\draw []  (6,\lensHeight)
arc[start angle=180-\startAngle,delta
[1em]Field\\[-1ex]lens}
-- cycle;

\draw[] plot[only marks, mark=*,mark size=10pt,mark options={fill=Sepia}]
coordinates{(-6.5,0)} node[below, align=center]{\\[1em]Object};
\draw[] (-6,0) -- (0,3);
\draw[] (-6,0) -- (0,-3);

\draw[] (6.5,0) -- (0,3);
\draw[] (6.5,0) -- (0,-3);

%lenticular pattern
\pgfmathsetmacro{\lensHeight}{0.2}
\draw []  (8,\lensHeight)
arc[start angle=180-\startAngle,delta
\draw [line width=0.25mm ] (8,3) -- (8,-3) -- (8.2,-3) -- (8.2,3) -- cycle;

\end{tikzpicture}
\end{document}


Output:

• @Raaja sometimes one simply has no clue where to start :) I wouldn't close a question simply because one doesn't know how to do something: that's why they're here. – Superuser27 Mar 13 at 7:38
• @Superuser27 An OP doesnt always need a perfect MWE to start with. But atleast some commitment or motivation should be there behind a question, instead of knowing the way how to proceed and not trying it. Everyone of us makes mistakes (I am also learning things that way). In this case OP knows what to do, and has the recipies to do. It's just a matter of trial-and-error to atleast begin something. If you see this: tex.stackexchange.com/questions/472117/… then OP already has some knowledge on where to start with :). – Raaja Mar 13 at 7:45
• @Raaja Thanks for pointing out. Added the code and the output I got so far. – Sndn Mar 13 at 8:22
• @sndn good!! +1 since, this question already has an answer given by marmot. Consider accepting it, if you think that solves your issue. – Raaja Mar 13 at 8:30

\documentclass[tikz,border=3.14mm]{standalone}