Lens-fitted photo film unit having auxiliary module

A lens-fitted photo film unit comprising:

• a housing pre-loaded with photo film;
• a shutter release button;
• a photographing opening formed in said housing;
• a shutter mechanism for opening/shutting said photographing opening in response to actuation of said shutter release button, to provide said photo film with an exposure;
• an imprinting opening, formed in said housing, for imprinting optical information to said photo film;
• and
• a blocking plate, movable between closed and open positions, for closing said imprinting opening when in said closed position, for opening said imprinting opening when in said open position, and for being shifted to said open position in response to actuation of said shutter release button.

A lens-fitted photo film unit pre-loaded with photo film, comprising:

• a flash emitter for emitting flash light;
• a flash circuit board for controlling operation of said flash emitter;
• an information imprinting module for imprinting information to said photo film, said information imprinting module including:
• a display panel for indicating said information;
• a light guide member, having:
• (a) a flash light entrance portion, having at least one portion protruding to a rear of said flash circuit board, for receiving entry of part of said flash light;
• (b) a light exit portion for applying light to a front face of said display panel by guiding said part of said flash light.

A lens-fitted photo film unit comprising:

• a housing pre-loaded with photo film;
• an information imprinting module, incorporated in said housing, for imprinting information to said photo film, said information imprinting module being reset upon discontinuation of being supplied with power;
• first and second metal contact segments connected with said information imprinting module;
• a battery for supplying said information imprinting module with power;
• a first opening formed in said housing and disposed outside said battery;
• and
• an outer packaging material, secured to an outer face of said housing, for covering at least part of said first opening to keep said battery in contact with said first and second contact segments, said outer packaging material, upon being removed, disconnecting said battery from at least one of said first and second contact segments, for discontinuing supply of power for said information imprinting module.

A lens-fitted photo film unit comprising:

• a housing pre-loaded with photo film;
• an information imprinting module, incorporated in said housing, for imprinting information to said photo film, said information imprinting module being reset upon discontinuation of being supplied with power;
• first and second metal contact segments connected with said information imprinting module;
• a battery, connected between said first and second contact segments, for supplying said information imprinting module with power;
• a first opening formed in said housing and disposed outside said battery;
• a battery lid fitted in at least part of said first opening;
• and
• an outer packaging material, secured to an outer face of said housing, for covering at least part of said battery lid to keep said battery in contact with said first and second contact segments, said outer packaging material, upon being removed, disconnecting said battery from at least one of said first and second contact segments, for discontinuing supply of power for said information imprinting module.

A lens-fitted photo film unit comprising:

• a housing pre-loaded with photo film;
• an information imprinting module, incorporated in said housing, for imprinting information to said photo film, said information imprinting module being reset upon discontinuation of being supplied with power;
• first and second metal contact segments connected with said information imprinting module;
• a battery, including first and second electrodes for contact with respectively said first and second contact segments, for supplying said information imprinting module with power;
• a battery holder for containing said battery;
• wherein said first contact segment is away from said first electrode when in a free state, said second contact segment is disposed in said battery holder and contacts said second electrode when said battery is contained in said battery holder;
• and
• an outer packaging material, secured to an outer face of said housing, for pressing said first contact segment resiliently to keep said first contact segment in contact with said first electrode, and for, upon being removed, setting said first contact segment in said free state, to discontinue supply of power for said information imprinting module.