Forgot password feature allows you to reset your Lens account password if you have forgotten it provided you have access to the email address specified for the account. A password may be reset by submitting a request form.
Location
Sign In Window
On the Sign in window you can locate the “Forgot Password” button at the bottom under the main “Sign in” button. You can reset your password by clicking this link and following through to and completing the Reset Password form.
How to Use

If you forget your password click on the “Forgot password” button on the sign in dialog. Clicking on the button will led you to the password reset page. Enter your Lens username or specified email address in the textbox provided and click on the “Reset Password” button. An email will be sent to the specified email address where further instruction will be provided.