Abstract: A heat deflection testing equipment (10) for measuring tolerance of a sample (60) includes a temperature controlling case (30) and an optical sensor (20). The case includes a base (40) and a cover (50). The case has a carrier (41) defining a convective chamber (42) and a partition (44). The partition and the cover jointly define a heating chamber (49). An exhaust hole (440) communicating with the heating chamber and the convective chamber is on the partition. A sample carrier (46) has a datum plane (462). A number of air tubes (48) are set around the sample carrier with openings facing the sample. Incident beams (200, 202, 204) from the sensor are projected on the datum plane and the sample. Reflex beams (201, 203, 205) are reflected from the datum plane and the sample. The geometric tolerance can be measured by analyzing the incident beams and the reflex beams.

Abstract: A heating geometric measure equipment (10) for measuring geometric tolerance of a sample (60) under heating atmosphere. The measure equipment (10) includes a temperature controlling case (30) and an optical sensor (20). The case (30) includes a base (40) and a cover (50) having a window (500) clipped on the case (30). The case (30) has a supporting section (41) defining a convective chamber therein and a partition (44) on the supporting section (41). The partition (44) and the cover (50) jointly define a heating chamber (49). A vent (402) communicating with the heating chamber (49) and the convective chamber (42) is defined on the partition (400). A sample carrier (46) having a datum plane (462) on an upper surface thereof is provided above the vent (402). A number of air tubes (48) are set around the sample carrier (46) with openings facing the sample carrier (46). The sensor (20) is horizontally movable above the cover (60) of the case (30).