Electronics tester

1. A cartridge comprising:

an electronic device holder having a formation for removably holding an electronic device having an input contact and a light emitter;

an input contact on the electronic device holder to connect to the input contact on the electronic device to provide an input electric power through the input contact on the electronic device holder to the input contact on the electronic device, the input electric power causing the light emitter to transmit light;

a light detector mounted to the electronic device holder and positioned to detect the light and generate an output electric power in response to a magnitude of the light; and

an output contact connected to the light detector to measure the output electric power.

2. The cartridge of claim 1 , wherein the electronic device holder defines a cavity into which the light is directed and through which the light transmits from the light emitter to the light detector.

3. The cartridge of claim 2 , further comprising:

a light absorbing coating on surfaces of the cavity.

4. The cartridge of claim 1 , further comprising:

a socket having a formation for holding the electronic device;

a lid, the socket and the lid jointly forming the electronic device holder; and

a pusher plate that is mounted for movement relative to the lid, the lid being locatable over the socket and movable towards the socket, the movable mounting of the pusher plate allowing for the electronic device to move the pusher plate relative to the lid, the pusher plate having an opening through which the light transmits from the light emitter to the light detector.

5. The cartridge of claim 4 , further comprising:

a spring connected between the lid and the pusher plate, the pusher plate being linearly movable by the first device relative to the lid to cause deformation of the spring, the spring being a coil spring through which the light propagates.

6. The cartridge of claim 1 , further comprising:

a temperature modification device on a first side of the device holder which, when operated changes temperature to cause a temperature differential between the temperature modification device and the electronic device and a transfer of heat between the temperature modification device and the electronic device to modify a temperature of the electronic device.

7. The cartridge of claim 6 , further comprising:

a heat sink on a side of the device holder opposing the temperature modification device, the heat sink having a surface for absorbing the light, absorption of the light creating heat in the heat sink; and

a heat dissipation device thermally connected to the heat sink to remove the heat from the heat sink.

8. The cartridge of claim 7 , further comprising:

a light detector mounted to the electronic device holder and positioned to detect the light and generate an output electric power in response to a magnitude of the light; and

an output contact connected to the light detector to measure the output electric power.

9. A method of testing one or more electronic devices comprising:

inserting an electronic device having an input contact and a light emitter into a device holder;

connecting an input contact on the electronic device holder to the input contact on the electronic device;

providing an input electric power through the input contact on the electronic device holder to the input contact on the electronic device, the input electric power causing the light emitter to transmit light;

detecting the light;

transforming the light that is detected to an output electric power;

measuring the output electric power through an output contact; and

removing the electronic device from the electronic device holder.