Image projector, projected image pattern, laser driver, imaging device

A laser drive apparatus comprising a laser light source for generating light of laser beams, wherein

• said laser drive apparatus stops said laser light source from generating said light of laser beams for a fixed time period or longer on condition that said light of laser beams is continuously generated over a predetermined time period.

A laser drive apparatus including a laser light source for generating light of laser beams, means for adjusting a quantity of said light of laser beams, and camera means, wherein

• means for storing therein an adjustment value found according to an output of said camera means which takes a picture after projecting said light of laser beams is provided, and
• the quantity of said light of laser beams is adjusted based upon said stored adjustment value.

A laser drive apparatus comprising a laser light source for generating light of laser beams and monitor means for detecting said light of laser beams, wherein

• said laser drive apparatus stops said laser light source from generating said light of laser beams on condition that an output of said monitor means exceeds an arbitrary tolerance limit.

A laser drive apparatus comprising a laser light source for generating light of laser beams and means for adjusting a quantity of said light of laser beams, wherein

• said adjustment means adjusts the quantity of said light of laser beams by driving said laser light source through a pulse signal having an arbitrary pulse width.

A camera apparatus comprising an image projection apparatus that includes a laser light source for generating light of laser beams and a hologram plate, wherein

• said camera apparatus projects onto an object a hologram reproduced image obtained by applying said light of laser beams to said hologram plate.

A camera apparatus comprising an image projection apparatus that includes a laser light source for generating light of diffused laser beams, a condenser for converting said light of diffused laser beams to light of parallel laser beams, and a hologram plate irradiated with said light of parallel laser beams, said condenser being integrated with said hologram plate into one body unit, wherein

• said image projection apparatus projects onto an object a hologram reproduced image that is obtained by applying said light of parallel laser beams to said hologram plate.