Optical image capturing system

An optical image capturing system, along an optical axis from an object side to an image side, comprising:

• at least one lens;
• and
• an optical filter adjacent to the at least one lens and comprising at least one visible light absorbing ingredient, wherein the optical filter correspondingly absorbs a visible light with a wavelength range from 400 nm to 700 nm and allows a light with a wavelength range greater than 800 nm to correspondingly pass through;
• the optical filter satisfies:
• |TA50−TA0|≤10%;
• when the light with the wavelength range greater than 800 nm passes through the optical filter, TA50 is a transmittance of the light at an incident angle of 50 degrees and TA0 is a transmittance of the light at an incident angle of 0 degree.

An optical image capturing system, along an optical axis from an object side to an image side, comprising:

• a plurality of lenses respectively having refractive power, wherein at least one of the plurality of lenses is a filter lens;
• the filter lens comprises at least one visible light absorbing ingredient;
• the filter lens correspondingly absorbs a visible light with a wavelength range from 400 nm to 700 nm and allows a light with a wavelength range greater than 800 nm to correspondingly pass through;
• the filter lens satisfies:
• |θ1|≤62°;
• the optical axis intersects with either an object-side surface, which faces the object side, or an image-side surface, which faces the image side, of the filter lens to form an intersection point;
• a vertical height L is defined as a distance from the intersection point to a maximum effective half diameter position in a direction perpendicular to the optical axis;
• two sides of the filter lens respectively have an outer peripheral surface;
• the filter lens defines an imaginary line being perpendicular to the optical axis and passing through two endpoints of the two outer peripheral surfaces;
• the imaginary line correspondingly meets two maximum boundary points of the object-side surface or correspondingly meets two maximum boundary points of the image-side surface, so that the maximum effective half diameter position is defined as an intersection of the imaginary line and one of the two maximum boundary points of the object-side surface or is defined as an intersection of the imaginary line and one of the two maximum boundary points of the image-side surface;
• an a1 point on the object-side surface or on the image-side surface is defined as a position where a distance between the a1 point and the intersection point in the direction perpendicular to the optical axis is 0.95 times the vertical height L;
• the a1 point has a reference line and a normal line vector, wherein the reference line passes through the a1 point and is correspondingly parallel to the optical axis;
• the normal line vector passes through the a1 point and is correspondingly perpendicular to the object-side surface or the image-side surface;
• θ1 is an intersecting angle formed between the reference line and the normal line vector.