A product [11] includes a foldable clamshell-type housing [10] folded to a closed position to contain a pre-formed sensor pad [17] that was formed in situ therein when the housing [10] was in an open position, prior to closing. The housing [10] has an enclosed volume [12] bounded by relatively thin and flexible walls [23, 34], and outwardly extending tabs [18] which facilitate opening. This structure enables the user to easily open the housing [10] to remove the sensor pad [17], a cured silicone composition, by pushing inward on an outer surface of the outer wall [34] of a base section [15] of the housing [10]. This product [11] reduces the amount of manipulation needed to place the sensor pad [17] in a desired position, for example, during installation of a rain sensor system for a vehicle windshield.

A product [11] includes a foldable clamshell-type housing [10] folded to a closed position to contain a pre-formed sensor pad [17] that was formed in situ therein when the housing [10] was in an open position, prior to closing. The housing [10] has an enclosed volume [12] bounded by relatively thin and flexible walls [23, 34], and outwardly extending tabs [18] which facilitate opening. This structure enables the user to easily open the housing [10] to remove the sensor pad [17], a cured silicone composition, by pushing inward on an outer surface of the outer wall [34] of a base section [15] of the housing [10]. This product [11] reduces the amount of manipulation needed to place the sensor pad [17] in a desired position, for example, during installation of a rain sensor system for a vehicle windshield.

A method for calibrating a rain sensor (3), the rain sensor (3) being configured to measure a quantity of rain on a window (101) of a vehicle (100), the rain sensor (3) including a transmitter (4) and a receiver (5), the transmitter (4) being configured to emit or transmit light to the window (101) and the receiver (5) being configured to receive measurement light that is emitted or transmitted by the transmitter (4) and guided to the receiver (5) by the window (101); the method comprising: varying (S1) an incidence angle (?) of the light emitted or transmitted by the transmitter (4) to the window (101).

A product [11] includes a foldable clamshell-type housing [10] folded to a closed position to contain a pre-formed sensor pad [17] that was formed in situ therein when the housing [10] was in an open position, prior to closing. The housing [10] has an enclosed volume [12] bounded by relatively thin and flexible walls [23, 34], and outwardly extending tabs [18] which facilitate opening. This structure enables the user to easily open the housing [10] to remove the sensor pad [17], a cured silicone composition, by pushing inward on an outer surface of the outer wall [34] of a base section [15] of the housing [10]. This product [11] reduces the amount of manipulation needed to place the sensor pad [17] in a desired position, for example, during installation of a rain sensor system for a vehicle windshield.

A lens receives light from an emitting element and guides the light reflected on an outer surface of a windshield toward a receiving element. Arithmetic processing is to acquire, as a sensor output signal, a difference between a light receiving value of the receiving element before or after an emission timing of pulsed light and a light receiving value at the emission timing. Comparison processing is to determine that the present value is normal and to use the present value as the sensor output signal when a difference between a previous value and a present value of the sensor output signal is less than a threshold. The comparison processing is to determine that the present value is abnormal and not to use the present value for controlling a wiper device when the difference is greater than or equal to the abnormality threshold.

A method of mounting, at a desired location, a vehicle sensor pad for a sensor system of a vehicle wherein the sensor pad is initially packaged in a product that includes a foldable clamshell-type housing folded to a closed position to contain the pre-formed sensor pad that was formed in situ therein when the housing was in an open position, prior to closing. The housing has an enclosed volume bounded by relatively thin and flexible walls, and outwardly extending tabs which facilitate opening. This structure enables the user to easily open the housing to remove the sensor pad, a cured silicone composition, by pushing inward on an outer surface of the outer wall of a base section of the housing. This product reduces the amount of manipulation needed to mount the sensor pad in a desired position, for example, during installation of a rain sensor system for a vehicle windshield.

A product [11] includes a foldable clamshell-type housing [10] folded to a closed position to contain a pre-formed sensor pad [17] that was formed in situ therein when the housing [10] was in an open position, prior to closing. The housing [10] has an enclosed volume [12] bounded by relatively thin and flexible walls [23, 34], and outwardly extending tabs [18] which facilitate opening. This structure enables the user to easily open the housing [10] to remove the sensor pad [17], a cured silicone composition, by pushing inward on an outer surface of the outer wall [34] of a base section [15] of the housing [10]. This product [11] reduces the amount of manipulation needed to place the sensor pad [17] in a desired position, for example, during installation of a rain sensor system for a vehicle windshield.

A method for calibrating a rain sensor (3), the rain sensor (3) being configured to measure a quantity of rain on a window (101) of a vehicle (100), the rain sensor (3) including a transmitter (4) and a receiver (5), the transmitter (4) being configured to emit or transmit light to the window (101) and the receiver (5) being configured to receive measurement light that is emitted or transmitted by the transmitter (4) and guided to the receiver (5) by the window (101); the method comprising: varying (S1) an incidence angle () of the light emitted or transmitted by the transmitter (4) to the window (101).